Pultrusion Technique Inc.

Canada

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2024 October 1
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IPC Class
C25C 1/00 - Electrolytic production, recovery or refining of metals by electrolysis of solutions 19
C25C 7/00 - Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells 18
C25C 7/02 - Electrodes; Connections thereof 17
B65D 88/76 - Large containers for use underground 11
C25C 7/06 - Operating or servicing 9
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Status
Pending 9
Registered / In Force 49
Found results for  patents

1.

ASSEMBLIES FOR ALIGNMENT AND LEVELING OF AN ELECTROLYTIC TANK UPON EXPANSION OR RETRACTION THEREOF

      
Application Number 18734783
Status Pending
Filing Date 2024-06-05
First Publication Date 2024-10-17
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert

Abstract

There is provided an electrolytic tank assembly facilitating alignment and levelling of an electrolytic tank with respect to adjacent electrolytic tank. A levelling assembly can include a plurality of adjustable levelling mechanisms being independently actuable to cause upward or downward movement of the electrolytic tank. A sole assembly can include friction and sliding soles for controlling transversal movement of an electrolytic tank with respect to support beams onto which the tank is supported. A strap assembly comprising a vertically extending strap and a connector provided at an end of the vertically extending strap can be connected to each adjustable levelling mechanism of the levelling assembly. Various type of connectors can be provided at the other end of the strap to provide anchorage to accessory for operation, lifting, maintenance, etc.

IPC Classes  ?

  • F16M 7/00 - FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS - Details of attaching or adjusting engine beds, frames, or supporting-legs on foundation or base; Attaching non-moving engine parts, e.g. cylinder blocks
  • C25C 7/06 - Operating or servicing

2.

Anchor Assembly For Anchoring An Underground Tank

      
Application Number 18620212
Status Pending
Filing Date 2024-03-28
First Publication Date 2024-08-08
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert

Abstract

An anchor assembly and related system for holding an underground tank below a ground level, including a lightweight anchor base defining a slot, and a retention mechanism that is locatable at multiple locations along the slot of the anchor base to securely maintain a strap assembly in place. The system can include the anchor assembly and the strap assembly, with the retention mechanism of the anchor assembly being movable along the slot of the anchor base to facilitate placement and adjustment of the strap assembly with respect to the anchor base.

IPC Classes  ?

  • B65D 88/76 - Large containers for use underground
  • F16M 13/02 - Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle

3.

AN ANCHORING ASSEMBLY INCLUDING A TIGHTENING MECHANISM FOR HOLDING AN UNDERGROUND STORAGE TANK

      
Application Number 18564724
Status Pending
Filing Date 2022-06-03
First Publication Date 2024-06-06
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor
  • Dufresne, Robert
  • Balit-Achim, Simon
  • Arabzadeh, Hamid
  • Dufresne, Xavier

Abstract

An anchoring assembly and related system and method for facilitating the securing a holding strap to a storage tank and holding of the latter to the ground, comprising a base that is connectable to a top surface of the storage tank and an anchor that is reversibly secured to the base and positionable in a transverse direction of the storage tank to anchor a proximal end of the holding strap. The anchor includes a tightening mechanism being supported above the top surface of the storage tank by the base, wherein the tightening mechanism is actuable to move the anchor with respect to the top surface of the storage tank, thereby modifying a tension of the holding strap.

IPC Classes  ?

4.

TECHNIQUES FOR DISPLACEMENT OF AN ELECTROLYTIC VESSEL

      
Application Number CA2023051331
Publication Number 2024/073859
Status In Force
Filing Date 2023-10-06
Publication Date 2024-04-11
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert

Abstract

An anchor system is proposed for securing to an electrolytic vessel to render the electrolytic vessel liftable upon coupling with the lifting device. The anchor system includes a plurality of strap assemblies being secured to respective anchor sections of the vessel and each strap assembly includes a strap and at least one anchor configured to provide anchorage to a lifting accessory of the lifting device. The system can further include at least one additional strengthener that can be positioned onto respective lower strap sections of the straps, or along an inner or outer surface of a base core wall of a core of the electrolytic vessel. A lifting system including the anchor system and the lifting device, liftable assembly including the anchor system and the electrolytic vessel, and a method for lifting and displacing the electrolytic vessel are further provided.

IPC Classes  ?

  • B66C 17/06 - Overhead travelling cranes comprising one or more substantially-horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports combined with auxiliary apparatus serving particular purposes
  • B66C 1/62 - Load-engaging elements or devices attached to lifting, lowering, or hauling gear of cranes, or adapted for connection therewith for transmitting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
  • C25C 7/00 - Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
  • C25C 7/06 - Operating or servicing
  • C02F 1/461 - Treatment of water, waste water, or sewage by electrochemical methods by electrolysis

5.

A CAPPING BOARD INCLUDING SIDE WALL PORTIONS FOR PREVENTING METAL DUST RELEASE DURING ELECTROREFINING

      
Application Number CA2023050886
Publication Number 2024/000065
Status In Force
Filing Date 2023-06-27
Publication Date 2024-01-04
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert

Abstract

A capping board is provided for electrorefining metals in two adjacent electrolytic cells. The capping board is configured for use with a contact bar and includes a main elongated body made of an electrically insulating material having a plurality of seats projecting upwardly and being distributed along side portions of the main elongated body in two opposed rows to define a central portion extending in a longitudinal direction of the main elongated body between the two rows of seats, and multiple lateral portions extending in a transverse direction of the main elongated body in between seats of a same row. The main elongated body further defines side wall portions projecting upwardly between seats of a same row and from side edges of the main elongated body, thereby preventing metal dust being generated by the contact bar from being communicated to the adjacent electrolytic cells via the lateral portions.

IPC Classes  ?

  • C25C 7/00 - Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
  • B08B 15/00 - Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
  • B08B 15/04 - Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
  • C25C 3/08 - Cell construction, e.g. bottoms, walls, cathodes

6.

Anchor assembly for anchoring an underground tank

      
Application Number 18014812
Grant Number 11975916
Status In Force
Filing Date 2021-07-09
First Publication Date 2023-11-02
Grant Date 2024-05-07
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert

Abstract

An anchor assembly and related system for holding an underground tank below a ground level, including a lightweight anchor base defining a slot, and a retention mechanism that is locatable at multiple locations along the slot of the anchor base to securely maintain a strap assembly in place. The system can include the anchor assembly and the strap assembly, with the retention mechanism of the anchor assembly being movable along the slot of the anchor base to facilitate placement and adjustment of the strap assembly with respect to the anchor base.

IPC Classes  ?

  • B65D 88/76 - Large containers for use underground
  • F16M 13/02 - Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle

7.

AN ANCHORING ASSEMBLY INCLUDING A TIGHTENING MECHANISM FOR HOLDING AN UNDERGROUND STORAGE TANK

      
Application Number CA2022050895
Publication Number 2022/251974
Status In Force
Filing Date 2022-06-03
Publication Date 2022-12-08
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor
  • Dufresne, Robert
  • Balit-Achim, Simon
  • Arabzadeh, Hamid
  • Dufresne, Xavier

Abstract

An anchoring assembly and related system and method for facilitating the securing a holding strap to a storage tank and holding of the latter to the ground, comprising a base that is connectable to a top surface of the storage tank and an anchor that is reversibly secured to the base and positionable in a transverse direction of the storage tank to anchor a proximal end of the holding strap. The anchor includes a tightening mechanism being supported above the top surface of the storage tank by the base, wherein the tightening mechanism is actuable to move the anchor with respect to the top surface of the storage tank, thereby modifying a tension of the holding strap.

IPC Classes  ?

  • B65D 90/12 - Supports
  • F16G 11/12 - Connections or attachments, e.g. turnbuckles, adapted for straining of cables, ropes or wire
  • F16M 13/02 - Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle

8.

AN ANCHORING ASSEMBLY INCLUDING A TIGHTENING MECHANISM FOR HOLDING AN UNDERGROUND STORAGE TANK

      
Document Number 03172560
Status Pending
Filing Date 2022-06-03
Open to Public Date 2022-12-04
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor
  • Dufresne, Robert
  • Balit-Achim, Simon
  • Arabzadeh, Hamid
  • Dufresne, Xavier

Abstract

An anchoring assembly and related system and method for facilitating the securing a holding strap to a storage tank and holding of the latter to the ground, comprising a base that is connectable to a top surface of the storage tank and an anchor that is reversibly secured to the base and positionable in a transverse direction of the storage tank to anchor a proximal end of the holding strap. The anchor includes a tightening mechanism being supported above the top surface of the storage tank by the base, wherein the tightening mechanism is actuable to move the anchor with respect to the top surface of the storage tank, thereby modifying a tension of the holding strap.

IPC Classes  ?

  • B65D 90/12 - Supports
  • F16G 11/12 - Connections or attachments, e.g. turnbuckles, adapted for straining of cables, ropes or wire
  • F16M 13/02 - Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle

9.

Assemblies for alignment and leveling of an electrolytic tank upon expansion or retraction thereof

      
Application Number 17429573
Grant Number 12038130
Status In Force
Filing Date 2020-02-11
First Publication Date 2022-05-19
Grant Date 2024-07-16
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert

Abstract

There is provided an electrolytic tank assembly facilitating alignment and levelling of an electrolytic tank with respect to adjacent electrolytic tank. A levelling assembly can include a plurality of adjustable levelling mechanisms being independently actuable to cause upward or downward movement of the electrolytic tank. A sole assembly can include friction and sliding soles for controlling transversal movement of an electrolytic tank with respect to support beams onto which the tank is supported. A strap assembly comprising a vertically extending strap and a connector provided at an end of the vertically extending strap can be connected to each adjustable levelling mechanism of the levelling assembly. Various type of connectors can be provided at the other end of the strap to provide anchorage to accessory for operation, lifting, maintenance, etc.

IPC Classes  ?

  • F16M 7/00 - FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS - Details of attaching or adjusting engine beds, frames, or supporting-legs on foundation or base; Attaching non-moving engine parts, e.g. cylinder blocks
  • C25C 7/06 - Operating or servicing

10.

LEAD-COATED ARTICLE FOR INDUSTRIAL OPERATIONS IN ACIDIC MEDIUM

      
Application Number 17429574
Status Pending
Filing Date 2020-02-13
First Publication Date 2022-04-07
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert

Abstract

Techniques described herein relate to an article, including an electrolytic tank for refining metals, and related production techniques, wherein the article defines a channel or cavity receiving a corrosive medium including sulfuric acid. The article includes a corrosion-resistant lead coating including at least one layer of lead solidified onto at least a portion of the cavity. The corrosion-resistant coating can be combined with additional layers including fiberglass-based material for further protection against corrosion.

IPC Classes  ?

  • C25C 7/00 - Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells

11.

ANCHOR ASSEMBLY FOR ANCHORING AN UNDERGROUND TANK

      
Application Number CA2021050947
Publication Number 2022/006680
Status In Force
Filing Date 2021-07-09
Publication Date 2022-01-13
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert

Abstract

An anchor assembly and related system for holding an underground tank below a ground level, including a lightweight anchor base defining a slot, and a retention mechanism that is locatable at multiple locations along the slot of the anchor base to securely maintain a strap assembly in place. The system can include the anchor assembly and the strap assembly, with the retention mechanism of the anchor assembly being movable along the slot of the anchor base to facilitate placement and adjustment of the strap assembly with respect to the anchor base.

IPC Classes  ?

  • B65D 88/76 - Large containers for use underground
  • B65G 5/00 - Storing fluids in natural or artificial cavities or chambers in the earth
  • E04B 1/41 - Connecting devices specially adapted for embedding in concrete or masonry

12.

ANCHOR ASSEMBLY FOR ANCHORING AN UNDERGROUND TANK

      
Document Number 03172552
Status Pending
Filing Date 2021-07-09
Open to Public Date 2022-01-13
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert

Abstract

An anchor assembly and related system for holding an underground tank below a ground level, including a lightweight anchor base defining a slot, and a retention mechanism that is locatable at multiple locations along the slot of the anchor base to securely maintain a strap assembly in place. The system can include the anchor assembly and the strap assembly, with the retention mechanism of the anchor assembly being movable along the slot of the anchor base to facilitate placement and adjustment of the strap assembly with respect to the anchor base.

IPC Classes  ?

  • B65D 88/76 - Large containers for use underground

13.

Anchor systems for lifting an electrolytic vessel

      
Application Number 16963609
Grant Number 11926915
Status In Force
Filing Date 2019-01-29
First Publication Date 2021-03-04
Grant Date 2024-03-12
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert

Abstract

A liftable electrolytic vessel including at least one anchor assembly being at least partially embedded in each of two opposed core walls to provide anchorage to a lifting accessory of a lifting device; and related method for lifting the electrolytic vessel. Each anchor assembly comprises an anchor having a strap slot, and a strap connected to the anchor and extending from the anchor along and inside at least a portion of the corresponding core wall. The anchor further includes a connector which is sized and configured to receive a fastener or engage a lifting accessory such as a chain or a hook. The anchor assembly may include one anchor provided at each end of the strap. A plurality of anchor assemblies may extend vertically and horizontally within a core of the vessel to offer various anchorage points from an outer surface of the core. Design of the anchor of a first anchor assembly may differ from the design of a second anchor assembly. A lifting accessory is further designed to be securable to each anchor of the vessel.

IPC Classes  ?

  • C25C 7/06 - Operating or servicing
  • B66C 1/66 - Load-engaging elements or devices attached to lifting, lowering, or hauling gear of cranes, or adapted for connection therewith for transmitting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
  • F16B 45/00 - Hooks; Eyes

14.

ASSEMBLIES FOR ALIGNMENT AND LEVELLING OF AN ELECTROLYTIC TANK UPON EXPANSION OR RETRACTION THEREOF

      
Document Number 03129459
Status Pending
Filing Date 2020-02-11
Open to Public Date 2020-08-20
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert

Abstract

There is provided an electrolytic tank assembly facilitating alignment and levelling of an electrolytic tank with respect to adjacent electrolytic tank. A levelling assembly can include a plurality of adjustable levelling mechanisms being independently actuable to cause upward or downward movement of the electrolytic tank. A sole assembly can include friction and sliding soles for controlling transversal movement of an electrolytic tank with respect to support beams onto which the tank is supported. A strap assembly comprising a vertically extending strap and a connector provided at an end of the vertically extending strap can be connected to each adjustable levelling mechanism of the levelling assembly. Various type of connectors can be provided at the other end of the strap to provide anchorage to accessory for operation, lifting, maintenance, etc.

IPC Classes  ?

  • C25C 7/00 - Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
  • C25C 1/00 - Electrolytic production, recovery or refining of metals by electrolysis of solutions
  • C25C 7/06 - Operating or servicing

15.

LEAD-COATED ARTICLE FOR INDUSTRIAL OPERATIONS IN ACIDIC MEDIUM

      
Application Number CA2020050190
Publication Number 2020/163958
Status In Force
Filing Date 2020-02-13
Publication Date 2020-08-20
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert

Abstract

Techniques described herein relate to an article, including an electrolytic tank for refining metals, and related production techniques, wherein the article defines a channel or cavity receiving a corrosive medium including sulfuric acid. The article includes a corrosion-resistant lead coating including at least one layer of lead solidified onto at least a portion of the cavity. The corrosion-resistant coating can be combined with additional layers including fiberglass-based material for further protection against corrosion.

IPC Classes  ?

  • C25C 7/00 - Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
  • C25C 1/00 - Electrolytic production, recovery or refining of metals by electrolysis of solutions

16.

LEAD-COATED ARTICLE FOR INDUSTRIAL OPERATIONS IN ACIDIC MEDIUM

      
Document Number 03129460
Status Pending
Filing Date 2020-02-13
Open to Public Date 2020-08-20
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert

Abstract

Techniques described herein relate to an article, including an electrolytic tank for refining metals, and related production techniques, wherein the article defines a channel or cavity receiving a corrosive medium including sulfuric acid. The article includes a corrosion-resistant lead coating including at least one layer of lead solidified onto at least a portion of the cavity. The corrosion-resistant coating can be combined with additional layers including fiberglass-based material for further protection against corrosion.

IPC Classes  ?

  • C25C 7/00 - Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
  • C25C 1/00 - Electrolytic production, recovery or refining of metals by electrolysis of solutions

17.

ASSEMBLIES FOR ALIGNMENT AND LEVELLING OF AN ELECTROLYTIC TANK UPON EXPANSION OR RETRACTION THEREOF

      
Application Number CA2020050178
Publication Number 2020/163947
Status In Force
Filing Date 2020-02-11
Publication Date 2020-08-20
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert

Abstract

There is provided an electrolytic tank assembly facilitating alignment and levelling of an electrolytic tank with respect to adjacent electrolytic tank. A levelling assembly can include a plurality of adjustable levelling mechanisms being independently actuable to cause upward or downward movement of the electrolytic tank. A sole assembly can include friction and sliding soles for controlling transversal movement of an electrolytic tank with respect to support beams onto which the tank is supported. A strap assembly comprising a vertically extending strap and a connector provided at an end of the vertically extending strap can be connected to each adjustable levelling mechanism of the levelling assembly. Various type of connectors can be provided at the other end of the strap to provide anchorage to accessory for operation, lifting, maintenance, etc.

IPC Classes  ?

  • C25C 7/00 - Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
  • C25C 1/00 - Electrolytic production, recovery or refining of metals by electrolysis of solutions
  • C25C 7/06 - Operating or servicing

18.

Anchors and methods for anchoring an underground storage tank

      
Application Number 16678763
Grant Number 10781968
Status In Force
Filing Date 2019-11-08
First Publication Date 2020-04-02
Grant Date 2020-09-22
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert

Abstract

Various anchors and methods for anchoring an underground storage tank are provided. The anchor includes a base and at least one retention mechanism connected to the base for retaining various configurations of hooks and straps for holding the tank. The retention mechanism includes an opening and a retention member that is configured to open or close the opening by displacing or collapsing said retention member. The anchor may include a composite base having a footing and a spine extending upwardly from the footing so as to define footing portions on either side of the spine. The footing and the spine may have a composite composition that includes a matrix material and a reinforcement structure embedded within the matrix material. The retention mechanism may be connected to the spine of the composite base for retaining a hook for anchoring the underground storage tank.

IPC Classes  ?

  • F16M 13/02 - Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
  • B65D 88/76 - Large containers for use underground

19.

ANCHOR SYSTEMS FOR LIFTING AN ELECTROLYTIC VESSEL

      
Document Number 03088024
Status In Force
Filing Date 2019-01-29
Open to Public Date 2019-08-01
Grant Date 2024-04-23
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert

Abstract

A liftable electrolytic vessel including at least one anchor assembly being at least partially embedded in each of two opposed core walls to provide anchorage to a lifting accessory of a lifting device; and related method for lifting the electrolytic vessel. Each anchor assembly comprises an anchor having a strap slot, and a strap connected to the anchor and extending from the anchor along and inside at least a portion of the corresponding core wall. The anchor further includes a connector which is sized and configured to receive a fastener or engage a lifting accessory such as a chain or a hook. The anchor assembly may include one anchor provided at each end of the strap. A plurality of anchor assemblies may extend vertically and horizontally within a core of the vessel to offer various anchorage points from an outer surface of the core. Design of the anchor of a first anchor assembly may differ from the design of a second anchor assembly. A lifting accessory is further designed to be securable to each anchor of the vessel.

IPC Classes  ?

  • C25C 7/06 - Operating or servicing
  • B66C 1/66 - Load-engaging elements or devices attached to lifting, lowering, or hauling gear of cranes, or adapted for connection therewith for transmitting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
  • C25C 1/00 - Electrolytic production, recovery or refining of metals by electrolysis of solutions
  • F16B 45/00 - Hooks; Eyes

20.

ANCHOR SYSTEMS FOR LIFTING AN ELECTROLYTIC VESSEL

      
Document Number 03232330
Status Pending
Filing Date 2019-01-29
Open to Public Date 2019-08-01
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert

Abstract

A liftable electrolytic vessel including at least one anchor assembly being at least partially embedded in each of two opposed core walls to provide anchorage to a lifting accessory of a lifting device; and related method for lifting the electrolytic vessel. Each anchor assembly comprises an anchor having a strap slot, and a strap connected to the anchor and extending from the anchor along and inside at least a portion of the corresponding core wall. The anchor further includes a connector which is sized and configured to receive a fastener or engage a lifting accessory such as a chain or a hook. The anchor assembly may include one anchor provided at each end of the strap. A plurality of anchor assemblies may extend vertically and horizontally within a core of the vessel to offer various anchorage points from an outer surface of the core. Design of the anchor of a first anchor assembly may differ from the design of a second anchor assembly. A lifting accessory is further designed to be securable to each anchor of the vessel.

IPC Classes  ?

  • C25C 7/06 - Operating or servicing
  • B66C 1/66 - Load-engaging elements or devices attached to lifting, lowering, or hauling gear of cranes, or adapted for connection therewith for transmitting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
  • C25C 1/00 - Electrolytic production, recovery or refining of metals by electrolysis of solutions
  • F16B 45/00 - Hooks; Eyes

21.

ANCHOR SYSTEMS FOR LIFTING AN ELECTROLYTIC VESSEL

      
Application Number CA2019050106
Publication Number 2019/144246
Status In Force
Filing Date 2019-01-29
Publication Date 2019-08-01
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert

Abstract

A liftable electrolytic vessel including at least one anchor assembly being at least partially embedded in each of two opposed core walls to provide anchorage to a lifting accessory of a lifting device; and related method for lifting the electrolytic vessel. Each anchor assembly comprises an anchor having a strap slot, and a strap connected to the anchor and extending from the anchor along and inside at least a portion of the corresponding core wall. The anchor further includes a connector which is sized and configured to receive a fastener or engage a lifting accessory such as a chain or a hook. The anchor assembly may include one anchor provided at each end of the strap. A plurality of anchor assemblies may extend vertically and horizontally within a core of the vessel to offer various anchorage points from an outer surface of the core. Design of the anchor of a first anchor assembly may differ from the design of a second anchor assembly. A lifting accessory is further designed to be securable to each anchor of the vessel.

IPC Classes  ?

  • C25C 7/06 - Operating or servicing
  • B65D 90/00 - Component parts, details or accessories for large containers
  • B66C 1/66 - Load-engaging elements or devices attached to lifting, lowering, or hauling gear of cranes, or adapted for connection therewith for transmitting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
  • C25C 1/00 - Electrolytic production, recovery or refining of metals by electrolysis of solutions
  • F16G 3/00 - Belt fastenings, e.g. for conveyor belts

22.

Techniques for making and using holding straps with hook-and-strap attachment

      
Application Number 15768426
Grant Number 10843854
Status In Force
Filing Date 2016-10-12
First Publication Date 2018-10-25
Grant Date 2020-11-24
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert P.

Abstract

There are provided a holding strap, methods of making the same, and methods using such holding strap for tying down objects on a flatbed of a vehicle, retaining underground tanks, or lifting electrodes out of an electrolytic cell. The holding strap includes a chemically pre-treated strap component, an epoxy resin chemically bonded to the pre-treated strap component, and a hook component comprising a cavity that is configured and sized to receive at least a portion of the strap component, the epoxy resin being chemically bonded to internal surfaces of the cavity, so as to form the holding strap.

IPC Classes  ?

  • B65D 63/10 - Non-metallic straps, tapes, or bands; Filamentary elements, e.g. strings, threads or wires; Joints between ends thereof
  • B29C 70/30 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
  • B29B 15/10 - Coating or impregnating
  • B66C 1/18 - Band-type slings
  • B66C 1/14 - Slings with hooks
  • B60P 7/08 - Securing to vehicle floor or sides
  • B29L 31/00 - Other particular articles
  • C09J 163/00 - Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins

23.

Anchors and methods for anchoring an underground storage tank

      
Application Number 15129306
Grant Number 10533701
Status In Force
Filing Date 2015-03-27
First Publication Date 2018-07-05
Grant Date 2020-01-14
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert

Abstract

Various anchors and methods for anchoring an underground storage tank are provided. The anchor includes a base and at least one retention mechanism connected to the base for retaining various configurations of hooks and straps for holding the tank. The retention mechanism includes an opening and a retention member that is configured to open or close the opening by displacing or collapsing said retention member. The anchor may include a composite base having a footing and a spine extending upwardly from the footing so as to define footing portions on either side of the spine. The footing and the spine may have a composite composition that includes a matrix material and a reinforcement structure embedded within the matrix material. The retention mechanism may be connected to the spine of the composite base for retaining a hook for anchoring the underground storage tank.

IPC Classes  ?

  • F16M 13/02 - Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
  • B65D 88/76 - Large containers for use underground

24.

Components, assemblies and methods for distributing electrical current in an electrolytic cell

      
Application Number 15567248
Grant Number 10689772
Status In Force
Filing Date 2016-04-06
First Publication Date 2018-03-29
Grant Date 2020-06-23
Owner Pultrusion Technique Inc. (Canada)
Inventor Dufresne, Robert

Abstract

An electrolytic cells for refining metals, and more particularly components, assemblies and methods making use of conductive elements configured to enhance distribution of electrical current.

IPC Classes  ?

  • C25B 9/06 - Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
  • C25B 9/00 - Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
  • C25B 3/04 - Electrolytic production of organic compounds by reduction
  • C25B 1/06 - Electrolytic production of inorganic compounds or non-metals of hydrogen or oxygen by electrolysis of water in cells with flat or plate-like electrodes
  • C25B 9/18 - Assemblies comprising a plurality of cells
  • C25C 7/02 - Electrodes; Connections thereof
  • C25C 7/00 - Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
  • C25C 1/00 - Electrolytic production, recovery or refining of metals by electrolysis of solutions

25.

ELECTROLYTIC CELL ASSEMBLIES AND METHODS FOR PERIODIC VERTICAL DISPLACEMENT

      
Application Number CA2017050917
Publication Number 2018/018162
Status In Force
Filing Date 2017-07-31
Publication Date 2018-02-01
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert

Abstract

An electrolytic cell assembly for hydrometallurgical refining of metal and related method for lifting thereof. The cell assembly comprises a rectangular base for contacting a floor; four walls extending upward from the rectangular base and defining an electrolysis cavity for receiving electrolyte and electrodes; anchor apertures provided through the base and/or the walls for providing anchor points for lifting the electrolytic cell assembly off of the floor; and plugs and/or protective layer for plugging and/or covering the anchor apertures to seal the electrolysis cavity during hydrometallurgical refining.

IPC Classes  ?

  • C25C 7/00 - Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
  • C25C 1/00 - Electrolytic production, recovery or refining of metals by electrolysis of solutions

26.

TECHNIQUES FOR MAKING AND USING HOLDING STRAPS WITH HOOK-AND-STRAP ATTACHMENT

      
Document Number 03001919
Status In Force
Filing Date 2016-10-12
Open to Public Date 2017-04-20
Grant Date 2023-04-04
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert P.

Abstract

There are provided a holding strap, methods of making the same, and methods using such holding strap for tying down objects on a flatbed of a vehicle, retaining underground tanks, or lifting electrodes out of an electrolytic cell. The holding strap includes a chemically pre-treated strap component, an epoxy resin chemically bonded to the pre-treated strap component, and a hook component comprising a cavity that is configured and sized to receive at least a portion of the strap component, the epoxy resin being chemically bonded to internal surfaces of the cavity, so as to form the holding strap.

IPC Classes  ?

  • C09J 163/00 - Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
  • B60P 7/06 - Securing of load
  • B65D 63/00 - Flexible elongated elements, e.g. straps, for bundling or supporting articles
  • B66C 1/14 - Slings with hooks
  • C09J 5/00 - Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
  • D07B 7/00 - ROPES OR CABLES IN GENERAL - Details of, or auxiliary devices incorporated in, rope- or cable-making machines; Auxiliary apparatus associated with such machines
  • F16G 11/14 - Devices or coupling-pieces designed for easy formation of adjustable loops, e.g. choker hooks; Hooks or eyes with integral parts designed to facilitate quick attachment to cables or ropes at any point, e.g. by forming loops

27.

TECHNIQUES FOR MAKING AND USING HOLDING STRAPS WITH HOOK-AND-STRAP ATTACHMENT

      
Application Number CA2016051189
Publication Number 2017/063081
Status In Force
Filing Date 2016-10-12
Publication Date 2017-04-20
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert P.

Abstract

There are provided a holding strap, methods of making the same, and methods using such holding strap for tying down objects on a flatbed of a vehicle, retaining underground tanks, or lifting electrodes out of an electrolytic cell. The holding strap includes a chemically pre-treated strap component, an epoxy resin chemically bonded to the pre-treated strap component, and a hook component comprising a cavity that is configured and sized to receive at least a portion of the strap component, the epoxy resin being chemically bonded to internal surfaces of the cavity, so as to form the holding strap.

IPC Classes  ?

  • C09J 163/00 - Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
  • B60P 7/06 - Securing of load
  • B65D 63/00 - Flexible elongated elements, e.g. straps, for bundling or supporting articles
  • B66C 1/14 - Slings with hooks
  • C09J 5/00 - Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
  • D07B 7/00 - ROPES OR CABLES IN GENERAL - Details of, or auxiliary devices incorporated in, rope- or cable-making machines; Auxiliary apparatus associated with such machines
  • F16G 11/14 - Devices or coupling-pieces designed for easy formation of adjustable loops, e.g. choker hooks; Hooks or eyes with integral parts designed to facilitate quick attachment to cables or ropes at any point, e.g. by forming loops

28.

ELECTROLYTIC VESSEL WITH REINFORCING COMPONENTS

      
Document Number 02985653
Status In Force
Filing Date 2016-05-12
Open to Public Date 2016-11-17
Grant Date 2022-10-25
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert

Abstract

There is provided a product that generally relates to hydrometallurgical equipment and more particularly to a reinforced electrolytic vessel for refining non-ferrous metals. The vessel includes a core shaped to hold an electrolytic liquid, the core comprising a rectangular core base and four walls extending upwardly from peripheral edges of the core base; and at least two flat elongated pultruded fiberglass rebars embedded in each wall of the core.

IPC Classes  ?

  • C25C 7/00 - Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
  • C25C 1/00 - Electrolytic production, recovery or refining of metals by electrolysis of solutions

29.

ELECTROLYTIC VESSEL WITH REINFORCING COMPONENTS

      
Application Number CA2016050542
Publication Number 2016/179703
Status In Force
Filing Date 2016-05-12
Publication Date 2016-11-17
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert

Abstract

There is provided a product that generally relates to hydrometallurgical equipment and more particularly to a reinforced electrolytic vessel for refining non-ferrous metals. The vessel includes a core shaped to hold an electrolytic liquid, the core comprising a rectangular core base and four walls extending upwardly from peripheral edges of the core base; and at least two flat elongated pultruded fiberglass rebars embedded in each wall of the core.

IPC Classes  ?

  • C25C 7/00 - Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
  • C25C 1/00 - Electrolytic production, recovery or refining of metals by electrolysis of solutions

30.

COMPONENTS, ASSEMBLIES AND METHODS FOR DISTRIBUTING ELECTRICAL CURRENT IN AN ELECTROLYTIC CELL

      
Document Number 02982863
Status In Force
Filing Date 2016-04-06
Open to Public Date 2016-10-20
Grant Date 2022-10-18
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert

Abstract

An electrolytic cells for refining metals, and more particularly components, assemblies and methods making use of conductive elements configured to enhance distribution of electrical current.

IPC Classes  ?

  • C25C 7/02 - Electrodes; Connections thereof
  • C25C 1/00 - Electrolytic production, recovery or refining of metals by electrolysis of solutions

31.

COMPONENTS, ASSEMBLIES AND METHODS FOR DISTRIBUTING ELECTRICAL CURRENT IN AN ELECTROLYTIC CELL

      
Application Number CA2016050394
Publication Number 2016/165012
Status In Force
Filing Date 2016-04-06
Publication Date 2016-10-20
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert

Abstract

An electrolytic cells for refining metals, and more particularly components, assemblies and methods making use of conductive elements configured to enhance distribution of electrical current.

IPC Classes  ?

  • C25C 7/02 - Electrodes; Connections thereof
  • C25C 1/00 - Electrolytic production, recovery or refining of metals by electrolysis of solutions

32.

Contact bar and capping board for supporting symmetrical electrodes for enhanced electrolytic refining of metals

      
Application Number 14992673
Grant Number 10233553
Status In Force
Filing Date 2016-01-11
First Publication Date 2016-05-05
Grant Date 2019-03-19
Owner Pultrusion Technique Inc. (Canada)
Inventor Dufresne, Robert

Abstract

A contact bar and related techniques allow enhanced electrolytic refining of metals, e.g. avoiding or reducing electrical short circuits. The contact bar is adapted to rest on an insulating capping board for contacting symmetrical electrodes to provide locations for electrical contact therewith. The contact bar includes a central portion laying on the capping board and branch portions extending laterally outward from the central portion, such that the branch portions fit in between seats of the capping board. The contact bar may include a retention member enabling to reduce lateral movement of the electrodes, and may include a plurality of apertures to engage corresponding holding arms of the capping board. There may be a plurality of adjacent similar contact bar segments.

IPC Classes  ?

  • C25C 7/00 - Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
  • C25D 17/00 - Constructional parts, or assemblies thereof, of cells for electrolytic coating
  • C25B 9/04 - Devices for current supply; Electrode connections; Electric inter-cell connections
  • C25C 7/02 - Electrodes; Connections thereof

33.

Configurations and positioning of contact bar segments on a capping board for enhanced current density homogeneity and/or short circuit reduction

      
Application Number 14895051
Grant Number 10689771
Status In Force
Filing Date 2014-06-04
First Publication Date 2016-04-28
Grant Date 2020-06-23
Owner Pultrusion Technique, Inc. (Canada)
Inventor Dufresne, Robert P.

Abstract

Techniques for installing contact bar segments in an electrolytic cell can include positioning a series of contact bar segments on a capping board to provide enhanced current density distribution in the series of contact bar segments positioned along the capping board, the contact bar segments including at least three contact regions for anodes and cathodes. In some scenarios, sub-sets of contact bar segments may be provided, such that one sub-set is configured to contact N number of anodes and N number of cathodes; another sub-set is configured to contact N number of anodes and N+1 number of cathodes including one center segment; and a further sub-set configured to contact N+1 number of anodes and N number of cathodes including two end segments.

IPC Classes  ?

  • C25C 7/00 - Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
  • C25C 1/00 - Electrolytic production, recovery or refining of metals by electrolysis of solutions

34.

Segmented capping board and contact bar assembly and methods in hydrometallurgical refining

      
Application Number 14759855
Grant Number 10000857
Status In Force
Filing Date 2014-01-10
First Publication Date 2015-12-10
Grant Date 2018-06-19
Owner Pultrusion Technique Inc. (Canada)
Inventor Dufresne, Robert P.

Abstract

An assembly for use in refining metals includes two adjacent capping board segments defining a joint interface there-between, a contact bar that may be a contact bar segment and is sized and configured to lay on the two capping boards and to span across the joint interface, and two engagement mechanisms provided on respective sides of the joint interface, to hold the capping board segments together. Each engagement mechanism may include a projecting anchor element and a retaining cavity sized and configured to receive a corresponding projecting anchor element. The contact bar may include the projecting anchor elements and the capping board segments may include the retaining cavities. Methods and uses of such contact bars and capping board segments are also provided for hydrometallurgical refining operations.

IPC Classes  ?

  • C25C 7/00 - Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
  • C25C 7/02 - Electrodes; Connections thereof
  • C25C 1/00 - Electrolytic production, recovery or refining of metals by electrolysis of solutions
  • C25C 3/00 - Electrolytic production, recovery or refining of metals by electrolysis of melts
  • C25C 5/00 - Electrolytic production, recovery or refining of metal powders or porous metal masses

35.

ANCHORS AND METHODS FOR ANCHORING AN UNDERGROUND STORAGE TANK

      
Document Number 02943793
Status In Force
Filing Date 2015-03-27
Open to Public Date 2015-10-01
Grant Date 2021-11-09
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert P.

Abstract

Various anchors and methods for anchoring an underground storage tank are provided. The anchor includes a base and at least one retention mechanism connected to the base for retaining various configurations of hooks and straps for holding the tank. The retention mechanism includes an opening and a retention member that is configured to open or close the opening by displacing or collapsing said retention member. The anchor may include a composite base having a footing and a spine extending upwardly from the footing so as to define footing portions on either side of the spine. The footing and the spine may have a composite composition that includes a matrix material and a reinforcement structure embedded within the matrix material. The retention mechanism may be connected to the spine of the composite base for retaining a hook for anchoring the underground storage tank.

IPC Classes  ?

  • E02D 5/74 - Means for anchoring structural elements or bulkheads
  • B65D 88/76 - Large containers for use underground
  • B65D 90/00 - Component parts, details or accessories for large containers
  • B65G 5/00 - Storing fluids in natural or artificial cavities or chambers in the earth
  • E02D 5/80 - Ground anchors
  • E02D 27/38 - Foundations for large tanks, e.g. oil tanks
  • E02D 29/045 - Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them

36.

ANCHORS AND METHODS FOR ANCHORING AN UNDERGROUND STORAGE TANK

      
Application Number CA2015050237
Publication Number 2015/143565
Status In Force
Filing Date 2015-03-27
Publication Date 2015-10-01
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert

Abstract

Various anchors and methods for anchoring an underground storage tank are provided. The anchor includes a base and at least one retention mechanism connected to the base for retaining various configurations of hooks and straps for holding the tank. The retention mechanism includes an opening and a retention member that is configured to open or close the opening by displacing or collapsing said retention member. The anchor may include a composite base having a footing and a spine extending upwardly from the footing so as to define footing portions on either side of the spine. The footing and the spine may have a composite composition that includes a matrix material and a reinforcement structure embedded within the matrix material. The retention mechanism may be connected to the spine of the composite base for retaining a hook for anchoring the underground storage tank.

IPC Classes  ?

  • E02D 5/74 - Means for anchoring structural elements or bulkheads
  • B65D 88/76 - Large containers for use underground
  • B65D 90/00 - Component parts, details or accessories for large containers
  • B65G 5/00 - Storing fluids in natural or artificial cavities or chambers in the earth
  • E02D 27/38 - Foundations for large tanks, e.g. oil tanks
  • E02D 29/045 - Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
  • E02D 5/80 - Ground anchors

37.

CONFIGURATIONS AND POSITIONING OF CONTACT BAR SEGMENTS ON A CAPPING BOARD FOR ENHANCED CURRENT DENSITY HOMOGENEITY AND/OR SHORT CIRCUIT REDUCTION

      
Document Number 02923906
Status In Force
Filing Date 2014-06-04
Open to Public Date 2014-12-11
Grant Date 2022-05-03
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert P.

Abstract

Techniques for installing contact bar segments in an electrolytic cell can include positioning a series of contact bar segments on a capping board to provide enhanced current density distribution in the series of contact bar segments positioned along the capping board, the contact bar segments including at least three contact regions for anodes and cathodes. In some scenarios, sub-sets of contact bar segments may be provided, such that one sub-set is configured to contact N number of anodes and N number of cathodes; another sub-set is configured to contact N number of anodes and N+1 number of cathodes including one center segment; and a further sub-set configured to contact N+1 number of anodes and N number of cathodes including two end segments.

IPC Classes  ?

  • C25C 7/02 - Electrodes; Connections thereof
  • C25C 1/00 - Electrolytic production, recovery or refining of metals by electrolysis of solutions

38.

CONFIGURATIONS AND POSITIONING OF CONTACT BAR SEGMENTS ON A CAPPING BOARD FOR ENHANCED CURRENT DENSITY HOMOGENEITY AND/OR SHORT CIRCUIT REDUCTION

      
Application Number CA2014050514
Publication Number 2014/194421
Status In Force
Filing Date 2014-06-04
Publication Date 2014-12-11
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert, P.

Abstract

Techniques for installing contact bar segments in an electrolytic cell can include positioning a series of contact bar segments on a capping board to provide enhanced current density distribution in the series of contact bar segments positioned along the capping board, the contact bar segments including at least three contact regions for anodes and cathodes. In some scenarios, sub-sets of contact bar segments may be provided, such that one sub-set is configured to contact N number of anodes and N number of cathodes; another sub-set is configured to contact N number of anodes and N+1 number of cathodes including one center segment; and a further sub-set configured to contact N+1 number of anodes and N number of cathodes including two end segments.

IPC Classes  ?

  • C25C 7/02 - Electrodes; Connections thereof
  • C25C 1/00 - Electrolytic production, recovery or refining of metals by electrolysis of solutions

39.

Hook with holding means and method for holding down underground tank with a strap

      
Application Number 14356947
Grant Number 09228606
Status In Force
Filing Date 2012-11-07
First Publication Date 2014-10-02
Grant Date 2016-01-05
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert P.

Abstract

A hook, a hold down strap and a method for holding down an underground tank. The hook includes a base portion connectable to the hold down strap; a curved portion extending from the base portion and defining a concave receiving area having an entrance sized and configured for receiving an anchor element. The hook includes at least one hooking aid member being a flexible member or an extension member. The flexible member extends across the entrance of the concave receiving area and is sized and configured to bend from a closed position to an open position such that, when the anchor element traverses the entrance, the flexible member bends from the closed position toward the concave receiving area to the open position, thus allowing the anchor element to enter the concave receiving area. The extension member extends from the curved portion beyond the entrance of the concave receiving area.

IPC Classes  ?

  • A47B 97/00 - Furniture or accessories for furniture, not provided for in other groups of this subclass
  • F16B 45/02 - Hooks with pivoting closing member
  • B65D 90/12 - Supports

40.

SEGMENTED CAPPING BOARD AND CONTACT BAR ASSEMBLY AND METHODS IN HYDROMETALLURGICAL REFINING

      
Application Number CA2014050015
Publication Number 2014/107810
Status In Force
Filing Date 2014-01-10
Publication Date 2014-07-17
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert P.

Abstract

An assembly for use in refining metals includes two adjacent capping board segments defining a joint interface there-between, a contact bar that may be a contact bar segment and is sized and configured to lay on the two capping boards and to span across the joint interface, and two engagement mechanisms provided on respective sides of the joint interface, to hold the capping board segments together. Each engagement mechanism may include a projecting anchor element and a retaining cavity sized and configured to receive a corresponding projecting anchor element. The contact bar may include the projecting anchor elements and the capping board segments may include the retaining cavities. Methods and uses of such contact bars and capping board segments 10 are also provided for hydrometallurgical refining operations.

IPC Classes  ?

  • C25C 7/02 - Electrodes; Connections thereof

41.

SEGMENTED CAPPING BOARD AND CONTACT BAR ASSEMBLY AND METHODS IN HYDROMETALLURGICAL REFINING

      
Document Number 02897124
Status In Force
Filing Date 2014-01-10
Open to Public Date 2014-07-17
Grant Date 2020-09-29
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert P.

Abstract

An assembly for use in refining metals includes two adjacent capping board segments defining a joint interface there-between, a contact bar that may be a contact bar segment and is sized and configured to lay on the two capping boards and to span across the joint interface, and two engagement mechanisms provided on respective sides of the joint interface, to hold the capping board segments together. Each engagement mechanism may include a projecting anchor element and a retaining cavity sized and configured to receive a corresponding projecting anchor element. The contact bar may include the projecting anchor elements and the capping board segments may include the retaining cavities. Methods and uses of such contact bars and capping board segments 10 are also provided for hydrometallurgical refining operations.

IPC Classes  ?

  • C25C 7/02 - Electrodes; Connections thereof

42.

Contact bar with multiple support surfaces and insulating capping board

      
Application Number 14009145
Grant Number 09222184
Status In Force
Filing Date 2012-03-29
First Publication Date 2014-07-03
Grant Date 2015-12-29
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert P.

Abstract

The present invention related to a contact bar or contact bar segment, a contact bar and insulating capping board assembly and a method for operating an electrolytic cell including electrodes for refining metal. Embodiments of the contact bar include support sections with multiple support surfaces for lying against the insulating capping board, thereby distributing weight of the electrodes hanging on the contact bar; and contact sections for receiving the electrodes while providing good electrical contact and precise positioning thereof. While following the steps of the method for operating the electrolytic cell, lifetime of the contact bar and insulating capping board may be increased.

IPC Classes  ?

  • C25C 7/00 - Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
  • C25C 7/02 - Electrodes; Connections thereof

43.

Contact bar and capping board for supporting symmetrical electrodes for enhanced electrolytic refining of metals

      
Application Number 14232102
Grant Number 09234287
Status In Force
Filing Date 2012-07-12
First Publication Date 2014-05-15
Grant Date 2016-01-12
Owner Pultrusion Technique Inc. (Canada)
Inventor Dufresne, Robert

Abstract

A contact bar and related techniques allow enhanced electrolytic refining of metals, e.g. avoiding or reducing electrical short circuits. The contact bar is adapted to rest on an insulating capping board for contacting symmetrical electrodes to provide locations for electrical contact therewith. The contact bar includes a central portion laying on the capping board and branch portions extending laterally outward from the central portion, such that the branch portions fit in between seats of the capping board. The contact bar may include a retention member enabling to reduce lateral movement of the electrodes, and may include a plurality of apertures to engage corresponding holding arms of the capping board. There may be a plurality of adjacent similar contact bar segments.

IPC Classes  ?

  • C25C 7/00 - Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
  • C25C 7/02 - Electrodes; Connections thereof
  • C25D 17/00 - Constructional parts, or assemblies thereof, of cells for electrolytic coating
  • C25B 9/04 - Devices for current supply; Electrode connections; Electric inter-cell connections

44.

HOOK WITH HOLDING MEANS AND METHOD FOR HOLDING DOWN UNDERGROUND TANK WITH A STRAP

      
Application Number CA2012050791
Publication Number 2013/067641
Status In Force
Filing Date 2012-11-07
Publication Date 2013-05-16
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert P.

Abstract

A hook, a hold down strap and a method for holding down an underground tank. The hook includes a base portion connectable to the hold down strap; a curved portion extending from the base portion and defining a concave receiving area having an entrance sized and configured for receiving an anchor element. The hook includes at least one hooking aid member being a flexible member or an extension member. The flexible member extends across the entrance of the concave receiving area and is sized and configured to bend from a closed position to an open position such that, when the anchor element traverses the entrance, the flexible member bends from the closed position toward the concave receiving area to the open position, thus allowing the anchor element to enter the concave receiving area. The extension member extends from the curved portion beyond the entrance of the concave receiving area.

IPC Classes  ?

  • F16B 45/02 - Hooks with pivoting closing member
  • B65D 88/76 - Large containers for use underground
  • B65D 90/00 - Component parts, details or accessories for large containers
  • F16G 11/00 - Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes
  • F16G 17/00 - Hooks as integral parts of chains

45.

HOOK WITH HOLDING MEANS AND METHOD FOR HOLDING DOWN UNDERGROUND TANK WITH A STRAP

      
Document Number 02854824
Status In Force
Filing Date 2012-11-07
Open to Public Date 2013-05-16
Grant Date 2019-06-04
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert P.

Abstract

A hook, a hold down strap and a method for holding down an underground tank. The hook includes a base portion connectable to the hold down strap; a curved portion extending from the base portion and defining a concave receiving area having an entrance sized and configured for receiving an anchor element. The hook includes at least one hooking aid member being a flexible member or an extension member. The flexible member extends across the entrance of the concave receiving area and is sized and configured to bend from a closed position to an open position such that, when the anchor element traverses the entrance, the flexible member bends from the closed position toward the concave receiving area to the open position, thus allowing the anchor element to enter the concave receiving area. The extension member extends from the curved portion beyond the entrance of the concave receiving area.

IPC Classes  ?

  • F16B 45/02 - Hooks with pivoting closing member
  • B65D 88/76 - Large containers for use underground
  • B65D 90/00 - Component parts, details or accessories for large containers
  • F16G 11/00 - Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes
  • F16G 17/00 - Hooks as integral parts of chains

46.

Contact bar for capping board

      
Application Number 13366687
Grant Number 08986521
Status In Force
Filing Date 2012-02-06
First Publication Date 2013-02-07
Grant Date 2015-03-24
Owner Pultrusion Technique Inc. (Canada)
Inventor Dufresne, Robert P.

Abstract

Disclosed is a segmented contact bar for use boarding an electrolytic cell. The segmented contact bar has contact pieces made of electrically conductive material and being in spaced apart relation along the capping board, each of the contact pieces defining a segment for supporting and electrically connecting an anode and a cathode in the electrolytic cell. The segmented contact bar also has connection members including an insulating material and provided in between pairs of adjacent segments for providing insulating interconnection of the segments. There is also an electrolytic refining apparatus including adjacent electrolytic cells; a capping board positioned on the adjacent electrolytic cells; anodes and cathodes extending in spaced apart alternate positions into the each of the adjacent electrolytic cells along the capping boards; and a segmented contact bar.

IPC Classes  ?

  • B23H 7/26 - Apparatus for moving or positioning electrode relatively to workpiece; Mounting of electrode
  • B23H 11/00 - Auxiliary apparatus or details, not otherwise provided for
  • C25B 9/00 - Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
  • C25C 7/00 - Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
  • C25D 17/00 - Constructional parts, or assemblies thereof, of cells for electrolytic coating
  • C25C 7/02 - Electrodes; Connections thereof

47.

CONTACT BAR AND CAPPING BOARD FOR SUPPORTING SYMMETRICAL ELECTRODES FOR ENHANCED ELECTROLYTIC REFINING OF METALS

      
Document Number 02841222
Status In Force
Filing Date 2012-07-12
Open to Public Date 2013-01-17
Grant Date 2019-05-21
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert

Abstract

A contact bar and related techniques allow enhanced electrolytic refining of metals, e.g. avoiding or reducing electrical short circuits. The contact bar is adapted to rest on an insulating capping board for contacting symmetrical electrodes to provide locations for electrical contact therewith. The contact bar includes a central portion laying on the capping board and branch portions extending laterally outward from the central portion, such that the branch portions fit in between seats of the capping board. The contact bar may include a retention member enabling to reduce lateral movement of the electrodes, and may include a plurality of apertures to engage corresponding holding arms of the capping board. There may be a plurality of adjacent similar contact bar segments.

IPC Classes  ?

  • C25C 7/02 - Electrodes; Connections thereof

48.

CONTACT BAR AND CAPPING BOARD FOR SUPPORTING SYMMETRICAL ELECTRODES FOR ENHANCED ELECTROLYTIC REFINING OF METALS

      
Application Number CA2012050480
Publication Number 2013/006977
Status In Force
Filing Date 2012-07-12
Publication Date 2013-01-17
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert

Abstract

A contact bar and related techniques allow enhanced electrolytic refining of metals, e.g. avoiding or reducing electrical short circuits. The contact bar is adapted to rest on an insulating capping board for contacting symmetrical electrodes to provide locations for electrical contact therewith. The contact bar includes a central portion laying on the capping board and branch portions extending laterally outward from the central portion, such that the branch portions fit in between seats of the capping board. The contact bar may include a retention member enabling to reduce lateral movement of the electrodes, and may include a plurality of apertures to engage corresponding holding arms of the capping board. There may be a plurality of adjacent similar contact bar segments.

IPC Classes  ?

  • C25C 7/02 - Electrodes; Connections thereof

49.

CONTACT BAR WITH MULTIPLE SUPPORT SURFACES AND INSULATING CAPPING BOARD

      
Document Number 02831626
Status In Force
Filing Date 2012-03-29
Open to Public Date 2012-10-04
Grant Date 2019-05-21
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert P.

Abstract

The present invention related to a contact bar or contact bar segment, a contact bar and insulating capping board assembly and a method for operating an electrolytic cell including electrodes for refining metal. Embodiments of the contact bar include support sections with multiple support surfaces for lying against the insulating capping board, thereby distributing weight of the electrodes hanging on the contact bar; and contact sections for receiving the electrodes while providing good electrical contact and precise positioning thereof. While following the steps of the method for operating the electrolytic cell, lifetime of the contact bar and insulating capping board may be increased.

IPC Classes  ?

  • C25C 7/02 - Electrodes; Connections thereof
  • C25C 1/00 - Electrolytic production, recovery or refining of metals by electrolysis of solutions

50.

CONTACT BAR WITH MULTIPLE SUPPORT SURFACES AND INSULATING CAPPING BOARD

      
Application Number CA2012050201
Publication Number 2012/129700
Status In Force
Filing Date 2012-03-29
Publication Date 2012-10-04
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert P.

Abstract

The present invention related to a contact bar or contact bar segment, a contact bar and insulating capping board assembly and a method for operating an electrolytic cell including electrodes for refining metal. Embodiments of the contact bar include support sections with multiple support surfaces for lying against the insulating capping board, thereby distributing weight of the electrodes hanging on the contact bar; and contact sections for receiving the electrodes while providing good electrical contact and precise positioning thereof. While following the steps of the method for operating the electrolytic cell, lifetime of the contact bar and insulating capping board may be increased.

IPC Classes  ?

  • C25C 7/02 - Electrodes; Connections thereof
  • C25C 1/00 - Electrolytic production, recovery or refining of metals by electrolysis of solutions

51.

Insulating anti-corrosive rail clamp integrally made of polymeric composition

      
Application Number 12522205
Grant Number 08870088
Status In Force
Filing Date 2007-12-20
First Publication Date 2010-02-25
Grant Date 2014-10-28
Owner Pultrusion Technique Inc. (Canada)
Inventor Dufresne, Robert

Abstract

The invention relates to a rail clamp for fastening rail equipment, said rail clamp being integrally composed of a polymeric composition produced by pultrusion or molding, vacuum molding or compression molding. It has high mechanical strength. It is anticorrosive and insulating and is preferably composed of a resin and reinforcing fibers and/or a thermoplastic. It is advantageously formed as a one piece structure. The rail clamp is especially used to fasten rails to base slabs and has economic advantages compared to the rail clamps known in the art, which are made of steel coated with rubber.

IPC Classes  ?

  • E01B 9/00 - Fastening rails on sleepers, or the like
  • E01B 9/28 - Fastening on wooden or concrete sleepers or on masonry with clamp members
  • C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material

52.

CONTACT BAR FOR CAPPING BOARD

      
Application Number CA2008000339
Publication Number 2008/101345
Status In Force
Filing Date 2008-02-21
Publication Date 2008-08-28
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert P.

Abstract

Disclosed is a contact bar for use on a capping board of a given length in order to electrically connect a plurality of anodes and cathodes extending in spaced apart, alternate positions in adjacent electrolytic cells all along the capping board. The contact bar extends over the length of the capping board and is of a given average cross-section. This contact bar comprises a central core that is made of an insulating material and extends all over its length. This contact bar also comprises a plurality of contact pieces that are made of an electrically conductive material and are positioned in spaced apart positions all along the core, each of the pieces defining a segment on which only a short number of the anodes and cathodes are connected. Due to such a division of the contact bar into segments formed by the contact pieces that are no more an electrical contact with each other thanks to the core made of insulating material, any short circuit that occurs by accident is no more 'transferred' to all the electrodes of the cells. It is actually transmitted only to the few electrodes in contact with the segment(s) to which is connected the electrode that may cause the trouble.

IPC Classes  ?

  • H01R 25/14 - Rails or bus-bars constructed so that the counterparts can be connected thereto at any point along their length
  • C25C 7/00 - Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
  • H02B 1/20 - Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards

53.

CAPPING BOARD SECTION AND ASSEMBLY WITH REINFORCED MATING PROJECTION

      
Application Number CA2008000181
Publication Number 2008/092248
Status In Force
Filing Date 2008-01-29
Publication Date 2008-08-07
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert P.

Abstract

The invention concerns a capping board assembly and its multiple connectable sections. Each pair of sections is connected with an interlocking joint, each of which comprises at least one projection and at least one recess that cooperate and prevent the longitudinal and lateral movement of the sections. Each interlocking joint is reinforced by a rod embedded within the section and extending within the projection. The rod has a tip that anchors the projection. The interlocking joints allow precision assembly of the sections of the capping board which greatly benefits strength, installation, replacement and transportation.

IPC Classes  ?

54.

INSULATING ANTI-CORROSIVE RAIL CLAMP INTEGRALLY MADE OF A POLYMERIC COMPOSITION

      
Application Number CA2007002324
Publication Number 2008/080219
Status In Force
Filing Date 2007-12-20
Publication Date 2008-07-10
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert, P.

Abstract

A rail clamp for fastening rail equipment, wherein the rail clamp is integrally composed of a polymeric composition obtained by pultrusion or molding, vacuum molding or compression molding. It has a high mechanical strength. The rail clamp is anticorrosive and insulating and is preferentially composed of a resin composite and reinforcing fibers and/or a thermoplastic. It is preferentially made in a single piece. The rail clamp is particularly useful to fix rails to aprons and is economically advantageous compared to rails clamps known in the art, which are made of rubber-covered steel.

IPC Classes  ?

  • E01B 11/14 - Rail foot flange clips in one piece
  • B29C 70/88 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced
  • C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material
  • E01B 11/54 - Electrically-insulating rail joints
  • E01B 9/00 - Fastening rails on sleepers, or the like

55.

ANTI-CORROSIVE INSULATING CLIP COMPOSED ENTIRELY OF A POLYMER COMPOSITION

      
Document Number 02572807
Status In Force
Filing Date 2007-01-05
Open to Public Date 2008-07-05
Grant Date 2014-08-12
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert P.

Abstract

The invention concerns a clip to affix rail equipment, this clip being composed entirely of a polymer composition produced by pultrusion or by moulding, vacuum moulding or compression moulding. It demonstrates excellent mechanical resistance. It is anti-corrosive and insulating, and is preferably a composite of a resin and reinforcing fibers and/or is thermoplastic. Advantageously, it is designed as a single part. The clip is specifically usable to retain rails to sills, and presents economic advantages relative to the clips known in prior art, which are made of rubber-coated steel.

IPC Classes  ?

  • E01B 11/14 - Rail foot flange clips in one piece
  • B29C 70/88 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced
  • C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material
  • E01B 9/00 - Fastening rails on sleepers, or the like
  • E01B 11/54 - Electrically-insulating rail joints

56.

CAPPING BOARD WITH SEPARATING WALLS

      
Document Number 02472688
Status In Force
Filing Date 2004-06-29
Open to Public Date 2005-12-29
Grant Date 2011-09-06
Owner PULTRUSION TECHNIQUE INC. (Canada)
Inventor Dufresne, Robert P.

Abstract

Disclosed in a capping board for use to support hanging legs of anodes and cathodes within adjacent electrolytic cells. This capping board has a main body having a bottom surface shaped to fit onto upper edges of the adjacent cells, and a top surface. A first set of spaced part insulating blocks project from the top surface. This first set of blocks extends in line all over the length of the capping board on one side of the main body. A. second set of spaced part insulating blocks also projects from the top surface. This second set of blocks also extends in line all over the length of the capping board at a given lateral distance from the first set of blocks. Thus, the two sets of blocks form two rows that together define a central path on the top surface. Each of the blocks has a recess forming an upwardly and laterally opening compartment to receive and support one of the hanging legs of the anodes and cathodes. Advantageously, a plurality of separating walls project upwardly from the top surface of the main body so as to extend transversally across the central path and dividing this central path into a plurality of separate segments in which separate contact bars may respectively be positioned. Due to such a division of the contact bars into separate segments, any short circuit that occurs by accident is no more "transferred" to all the electrodes of the cells. It is actually transmitted only to the few electrodes in contact with the segments) to which is connected the electrode that is at the origin of the trouble.

IPC Classes  ?

  • C25C 7/02 - Electrodes; Connections thereof
  • C25B 9/00 - Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
  • C25D 17/10 - Electrodes

57.

Capping board with separating walls

      
Application Number 10996366
Grant Number 07223324
Status In Force
Filing Date 2004-11-26
First Publication Date 2005-12-29
Grant Date 2007-05-29
Owner Pultrusion Technique Inc. (Canada)
Inventor Dufresne, Robert P.

Abstract

Disclosed in a capping board for use to support hanging legs of anodes and cathodes within adjacent electrolytic cells. This capping board has a main body having a bottom surface shaped to fit onto upper edges of the adjacent cells, and a top surface. A first set of spaced part insulating blocks project from the top surface. This first set of blocks extends in line all over the length of the capping board on one side of the main body. A second set of spaced part insulating blocks also projects from the top surface. This second set of blocks also extends in line all over the length of the capping board at a given lateral distance from the first set of blocks. Thus, the two sets of blocks form two rows that together define a central path on the top surface. Each of the blocks has a recess forming an upwardly and laterally opening compartment to receive and support one of the hanging legs of the anodes and cathodes. Advantageously, a plurality of separating walls project upwardly from the top surface of the main body so as to extend transversally across the central path and dividing this central path into a plurality of separate segments in which separate contact bars may respectively be positioned. Due to such a division of the contact bars into separate segments, any short circuit that occurs by accident is no more “transferred” to all the electrodes of the cells. It is actually transmitted only to the few electrodes in contact with the segment(s) to which is connected the electrode that is at the origin of the trouble.

IPC Classes  ?

  • C25B 9/04 - Devices for current supply; Electrode connections; Electric inter-cell connections

58.

Capping board with at least one sheet of electrically conductive material embedded therein

      
Application Number 10725548
Grant Number 07204919
Status In Force
Filing Date 2003-12-03
First Publication Date 2005-06-09
Grant Date 2007-04-17
Owner Pultrusion Technique Inc. (Canada)
Inventor Dufresne, Robert P.

Abstract

Disclosed is a capping board for use to support anodes and cathodes within adjacent electrolytic cells, which has a plurality of individual seats positioned in spaced apart relationship all along its length to receive and support hanging legs projecting from these anodes and cathodes. This capping board is improved in that it has at least one sheet or wire of electrically conductive material embedded therein. This sheet or wire extends over the length of the board and is shaped and positioned so that part of its extends externally within at least some of the seats so as to allow electrical contact of the legs of either the anodes or the cathodes and to allow fast dissipation of heat in the case of a short circuit.

IPC Classes  ?