Kalsi Engineering, Inc.

United States of America

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2024 7
2023 1
2021 3
2020 4
Before 2020 38
IPC Class
F16J 15/32 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings 14
F16J 15/16 - Sealings between relatively-moving surfaces 13
F16J 15/324 - Arrangements for lubrication or cooling of the sealing itself 10
F16J 15/00 - Sealings 8
F16J 15/3208 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic rings 7
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NICE Class
09 - Scientific and electric apparatus and instruments 3
17 - Rubber and plastic; packing and insulating materials 2
Status
Pending 3
Registered / In Force 50

1.

SPRING-LOADED GLAND WALL SEAL CARRIER FOR REVERSE ACTING DIFFERENTIAL PRESSURE

      
Application Number 18680444
Status Pending
Filing Date 2024-05-31
First Publication Date 2024-12-05
Owner KALSI ENGINEERING, INC. (USA)
Inventor Gobeli, Jeffrey David

Abstract

A sealing assembly for forward and reverse differential pressure, the sealing assembly including a housing having a first bore portion joined by a housing surface to a second bore portion, a shaft relatively movable with respect to the housing, an annular seal carrier located radially outward of and encircling at least a portion of the shaft. The seal carrier has an annular neck transitioning to an outwardly extending wall and having an axial extension adjoining the outwardly extending wall. The annular neck extends through the first bore portion and the axial extension and wall is positioned within the second bore portion. A dynamic seal is located between and has sealing contact with the axial extension and the shaft and partitions a lubricant fluid from an environment fluid. The dynamic seal has a lubricant fluid side exposed to the lubricant fluid and an environment fluid side exposed to the environment fluid. An end cap having an inner axial extension with an end face is secured to the housing. A spring is located around the neck and between the housing surface and the outwardly extending wall of the seal carrier. The seal carrier is allowed to have limited axial movement relative to the housing and the end cap and the dynamic seal is axially located between the end face of the end cap and the outwardly extending wall of the seal carrier.

IPC Classes  ?

  • F16J 15/16 - Sealings between relatively-moving surfaces
  • F16J 15/3204 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip

2.

SPRING-LOADED GLAND WALL SEAL CARRIER FOR REVERSE ACTING DIFFERENTIAL PRESSURE

      
Application Number US2024032036
Publication Number 2024/249884
Status In Force
Filing Date 2024-05-31
Publication Date 2024-12-05
Owner KALSI ENGINEERING, INC. (USA)
Inventor Gobeli, Jeffrey, David

Abstract

A sealing assembly for forward and reverse differential pressure comprises a housing having a first bore portion and a second bore portion; a lubricant fluid and an environment fluid; a shaft; a seal carrier having an annular neck extending through the first bore portion and an axial extension positioned within the second bore portion; a dynamic seal having sealing contact with the axial extension and the shaft; an end cap of annular form secured to the housing, wherein the end cap has an inner axial extension with an end face; and a spring located around the neck and between the housing and the seal carrier, wherein the seal carrier is allowed to have limited axial movement relative to the housing and the end cap, wherein the dynamic seal is axially located between the end face of the end cap and an outwardly extending wall of the seal carrier.

IPC Classes  ?

  • F16J 15/3208 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic rings
  • F16J 15/3264 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports comprising two casing or support elements, one attached to each surface, e.g. cartridge or cassette seals the elements being separable from each other
  • F16J 15/3268 - Mounting of sealing rings

3.

PASSIVE MODULATING DESIGN FOR FAST RESPONDING CONTROL VALVES FOR HIGH PRESSURE GAS APPLICATIONS

      
Application Number US2024026061
Publication Number 2024/226649
Status In Force
Filing Date 2024-04-24
Publication Date 2024-10-31
Owner KALSI ENGINEERING, INC. (USA)
Inventor
  • Leutwyler, Zachary, Wade
  • Leutwyler, Emil, Mack
  • Mistry, Mital, Chandrakant
  • Kalsi, Manmohan, Singh

Abstract

A passive, modulating flow control valve including a poppet having a precisely designed and constant unbalanced area. A spring rate is selected to achieve the desired poppet travel over the desired range of differential pressure. Preferably, the spring preload is selected such that the poppet will remain fully open until a specified minimum differential pressure is reached. The unbalanced area and spring force allow the poppet to reposition proportional to the differential pressure throughout the design range of differential pressure. An array of radial holes in the poppet are used to define the trim characteristics. As the poppet is pushed closed by the differential pressure, few radial holes remain uncovered, which increases the flow resistance. The single modulating poppet includes flow and trim characteristics that respond directly to differential pressure acting on it to achieve tight control of the mass flow rate.

IPC Classes  ?

  • F17C 13/04 - Arrangement or mounting of valves
  • F17C 5/06 - Methods or apparatus for filling pressure vessels with liquefied, solidified, or compressed gases for filling with compressed gases
  • F16K 31/122 - Operating meansReleasing devices actuated by fluid the fluid acting on a piston

4.

PASSIVE MODULATING DESIGN FOR FAST RESPONDING CONTROL VALVES FOR HIGH PRESSURE GAS APPLICATIONS

      
Application Number 18645092
Status Pending
Filing Date 2024-04-24
First Publication Date 2024-10-24
Owner KALSI ENGINEERING, INC. (USA)
Inventor
  • Leutwyler, Zachary Wade
  • Leutwyler, Emil Mack
  • Mistry, Mital Chandrakant
  • Kalsi, Manmohan Singh

Abstract

A passive, modulating flow control valve including a poppet having a precisely designed and constant unbalanced area. A spring rate is selected to achieve the desired poppet travel over the desired range of differential pressure. Preferably, the spring preload is selected such that the poppet will remain fully open until a specified minimum differential pressure is reached. The unbalanced area and spring force allow the poppet to reposition proportional to the differential pressure throughout the design range of differential pressure. An array of radial holes in the poppet are used to define the trim characteristics. As the poppet is pushed closed by the differential pressure, few radial holes remain uncovered, which increases the flow resistance. The single modulating poppet includes flow and trim characteristics that respond directly to differential pressure acting on it to achieve tight control of the mass flow rate.

IPC Classes  ?

  • G05D 7/01 - Control of flow without auxiliary power
  • G05D 16/10 - Control of fluid pressure without auxiliary power the sensing element being a piston or plunger

5.

BIDIRECTIONAL HYDRODYNAMIC ROTARY SEAL AND METHOD OF MAKING SAME

      
Application Number 18597455
Status Pending
Filing Date 2024-03-06
First Publication Date 2024-09-12
Owner KALSI ENGINEERING, INC. (USA)
Inventor
  • Dietle, Lannie Laroy
  • Richie, Aaron Paul

Abstract

A seal configuration, mold and manufacturing process that inhibits undesirable elastomer migration onto critical radially inwardly facing portions of a plastic-lined dynamic sealing lip, for improved high-pressure seal operation. The seal configuration is a hydrodynamically lubricating rotary seal for differential pressure acting in either axial direction that establishes compressed sealing engagement with a relatively rotatable surface and wedges a film of lubricating fluid into the interface between the rotary seal and the relatively rotatable surface in response to relative rotation that may occur in the clockwise or counter-clockwise direction. The rotary seal having a dynamic lip with hydrodynamic waves on both sides of the dynamic lip with the axial width of the seal minimized while maximizing the axial width of the dynamic sealing surface.

IPC Classes  ?

  • F16J 15/3204 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
  • B29C 43/18 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
  • B29C 43/52 - Heating or cooling
  • B29L 31/26 - Sealing devices, e.g. packaging for pistons or pipe joints

6.

BIDIRECTIONAL HYDRODYNAMIC ROTARY SEAL AND METHOD OF MAKING SAME

      
Application Number US2024018688
Publication Number 2024/186906
Status In Force
Filing Date 2024-03-06
Publication Date 2024-09-12
Owner KALSI ENGINEERING, INC. (USA)
Inventor
  • Dietle, Lannie Laroy
  • Richie, Aaron Paul

Abstract

A seal configuration, mold and manufacturing process that inhibits undesirable elastomer migration onto critical radially inwardly facing portions of a plastic-lined dynamic sealing lip, for improved high-pressure seal operation. Hie seal configuration is a hydrodynamically lubricating rotary- seal for differential pressure acting in either axial direction that establishes compressed sealing engagement with a relatively rotatable surface and wedges a film of lubricating fluid into the interface between the rotary seal and the relatively rotatable surface in response to relative rotation that may occur in the clockwise or counter-clockwise direction, The rotary seal having a dynamic lip with hydrodynamic waves on both sides of the dynamic lip with the axial width of the seal minimized while maximizing the axial width of the dynamic sealing surface.

IPC Classes  ?

  • F16J 15/328 - Manufacturing methods specially adapted for elastic sealings
  • F16J 15/3244 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with hydrodynamic pumping action
  • F16J 15/3204 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
  • F16J 15/54 - Other sealings for rotating shafts
  • B29C 33/42 - Moulds or coresDetails thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
  • B29C 33/76 - Cores
  • B29C 43/18 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles

7.

Miniature passive thermal control valve for mixing or splitting single-phase fluid with adjustable thermal actuator

      
Application Number 18640268
Grant Number 12271214
Status In Force
Filing Date 2024-04-19
First Publication Date 2024-08-29
Grant Date 2025-04-08
Owner KALSI ENGINEERING, INC. (USA)
Inventor
  • Mistry, Mital Chandrakant
  • Leutwyler, Zachary W.
  • Richie, Aaron P.
  • Kalsi, Manmohan S.

Abstract

A passive thermal control valve comprising a thermal actuator coupled to a valve body having first and second ports. The thermal actuator including an actuator body having an inner bore. An adjustment stop engages the actuator body. A cylinder is received within the actuator body inner bore and the cylinder has a cylinder bore open at one end. An actuator spring within the actuator body biases the cylinder towards the adjustment stop. An actuator rod is at least partially received within the cylinder and has first and second ends. At least a portion of the actuator rod is allowed to extend through the open cylinder bore. A sealing element forms a seal between the actuator rod and the cylinder and defines a sealed chamber within the cylinder. A thermal fluid is contained within the cylinder. A lever mechanism is connected to the valve body and includes a lever having a first end connected to the valve body. A valve spool is connected to a lever second end. The valve spool is arranged and designed to close the first port and allow a system fluid to flow through the second port, close the second port and allow the system fluid to flow through the first port, or allow the system fluid to flow through both the first and second ports.

IPC Classes  ?

  • F16K 31/00 - Operating meansReleasing devices
  • G05D 7/01 - Control of flow without auxiliary power

8.

Miniature passive thermal control valve for mixing or splitting single-phase fluid with adjustable thermal actuator

      
Application Number 17898204
Grant Number 11989043
Status In Force
Filing Date 2022-08-29
First Publication Date 2023-03-02
Grant Date 2024-05-21
Owner KALSI ENGINEERING, INC. (USA)
Inventor
  • Mistry, Mital Chandrakant
  • Leutwyler, Zachary W.
  • Richie, Aaron P.
  • Kalsi, Manmohan S.

Abstract

A passive thermal control valve comprising a thermal actuator coupled to a valve body having first and second ports. The thermal actuator including an actuator body having an inner bore. An adjustment stop engages the actuator body. A cylinder is received within the actuator body inner bore and the cylinder has a cylinder bore open at one end. An actuator spring within the actuator body biases the cylinder towards the adjustment stop. An actuator rod is at least partially received within the cylinder and has first and second ends. At least a portion of the actuator rod is allowed to extend through the open cylinder bore. A sealing element forms a seal between the actuator rod and the cylinder and defines a sealed chamber within the cylinder. A thermal fluid is contained within the cylinder. A lever mechanism is connected to the valve body and includes a lever having a first end connected to the valve body. A valve spool is connected to a lever second end. The valve spool is arranged and designed to close the first port and allow a system fluid to flow through the second port, close the second port and allow the system fluid to flow through the first port, or allow the system fluid to flow through both the first and second ports.

IPC Classes  ?

  • F16K 31/00 - Operating meansReleasing devices
  • G05D 7/01 - Control of flow without auxiliary power

9.

Flow conditioning assembly

      
Application Number 17318851
Grant Number 11261891
Status In Force
Filing Date 2021-05-12
First Publication Date 2021-09-02
Grant Date 2022-03-01
Owner KALSI ENGINEERING, INC. (USA)
Inventor
  • Leutwyler, Zachary W
  • Kalsi, Manmohan S

Abstract

A flow conditioning assembly comprising an integral elbow flow conditioner and a downstream flow conditioner. The elbow flow conditioner includes a pipe elbow with one or more flow conditioning elements. Each flow conditioning element includes one or more turning guides. Each turning guide is generally circular and radially spaced from one another and an inner surface of the elbow. Spaced vanes maintain the radial spacing of the turning guides. The vanes divide the radial space between the turning guides and pipe elbow into a plurality of flow channels that turn in generally the same direction as the inner surface of the pipe elbow. The downstream flow conditioner comprises a flow conditioning structure within a pipe element. The flow conditioning structure includes one or more flow guides of generally circular form radially spaced from one another and the pipe element. Spaced support vanes maintain the radial spacing of the flow guides.

IPC Classes  ?

  • F15D 1/04 - Arrangements of guide vanes in pipe elbows or duct bendsConstruction of pipe conduit elements for elbows with respect to flow, e.g. for reducing losses of flow
  • F15D 1/00 - Influencing the flow of fluids
  • F15D 1/06 - Influencing the flow of fluids in pipes or conduits by influencing the boundary layer

10.

FLOW CONDITIONING ASSEMBLY

      
Document Number 03140151
Status In Force
Filing Date 2020-05-01
Open to Public Date 2021-02-11
Grant Date 2023-01-03
Owner KALSI ENGINEERING, INC. (USA)
Inventor
  • Leutwyler, Zachary W.
  • Kalsi, Manmohan S.

Abstract

A flow conditioning assembly comprising an integral elbow flow conditioner and a downstream flow conditioner. The elbow flow conditioner includes a pipe elbow with one or more flow conditioning elements. Each flow conditioning element includes one or more turning guides. Each turning guide is generally circular and radially spaced from one another and an inner surface of the elbow. Spaced vanes maintain the radial spacing of the turning guides. The vanes divide the radial space between the turning guides and pipe elbow into a plurality of flow channels that turn in generally the same direction as the inner surface of the pipe elbow. The downstream flow conditioner comprises a flow conditioning structure within a pipe element. The flow conditioning structure includes one or more flow guides of generally circular form radially spaced from one another and the pipe element. Spaced support vanes maintain the radial spacing of the flow guides.

IPC Classes  ?

  • F16L 55/04 - Devices damping pulsations or vibrations in fluids

11.

FLOW CONDITIONING ASSEMBLY

      
Application Number US2020030990
Publication Number 2021/025742
Status In Force
Filing Date 2020-05-01
Publication Date 2021-02-11
Owner KALSI ENGINEERING, INC. (USA)
Inventor
  • Leutwyler, Zachary W.
  • Kalsi, Manmohan S.

Abstract

A flow conditioning assembly comprising an integral elbow flow conditioner and a downstream flow conditioner. The elbow flow conditioner includes a pipe elbow with one or more flow conditioning elements. Each flow conditioning element includes one or more turning guides. Each turning guide is generally circular and radially spaced from one another and an inner surface of the elbow. Spaced vanes maintain the radial spacing of the turning guides. The vanes divide the radial space between the turning guides and pipe elbow into a plurality of flow channels that turn in generally the same direction as the inner surface of the pipe elbow. The downstream flow conditioner comprises a flow conditioning structure within a pipe element. The flow conditioning structure includes one or more flow guides of generally circular form radially spaced from one another and the pipe element. Spaced support vanes maintain the radial spacing of the flow guides.

IPC Classes  ?

  • F16L 55/04 - Devices damping pulsations or vibrations in fluids

12.

Flow conditioning assembly

      
Application Number 16843616
Grant Number 11085470
Status In Force
Filing Date 2020-04-08
First Publication Date 2020-12-03
Grant Date 2021-08-10
Owner KALSI ENGINEERING, INC. (USA)
Inventor
  • Leutwyler, Zachary W
  • Kalsi, Manmohan S

Abstract

A flow conditioning assembly comprising an integral elbow flow conditioner and a downstream flow conditioner. The elbow flow conditioner includes a pipe elbow with one or more flow conditioning elements. Each flow conditioning element includes one or more turning guides. Each turning guide is generally circular and radially spaced from one another and an inner surface of the elbow. Spaced vanes maintain the radial spacing of the turning guides. The vanes divide the radial space between the turning guides and pipe elbow into a plurality of flow channels that turn in generally the same direction as the inner surface of the pipe elbow. The downstream flow conditioner comprises a flow conditioning structure within a pipe element. The flow conditioning structure includes one or more flow guides of generally circular form radially spaced from one another and the pipe element. Spaced support vanes maintain the radial spacing of the flow guides.

IPC Classes  ?

  • F15D 1/04 - Arrangements of guide vanes in pipe elbows or duct bendsConstruction of pipe conduit elements for elbows with respect to flow, e.g. for reducing losses of flow
  • F15D 1/00 - Influencing the flow of fluids
  • F15D 1/06 - Influencing the flow of fluids in pipes or conduits by influencing the boundary layer

13.

SEAL ASSEMBLY WITH ANTI-ROTATION AND STABILITY FEATURES

      
Document Number 03120943
Status In Force
Filing Date 2019-11-22
Open to Public Date 2020-06-04
Grant Date 2023-01-03
Owner KALSI ENGINEERING, INC. (USA)
Inventor
  • Richie, Aaron Paul
  • Dietle, Lannie Laroy
  • Gobeli, Jeffrey D.

Abstract

A rotary shaft sealing assembly having a rotatable shaft, a sea! housing having a groove bore located radially outward of and facing the rotatable shaft, and a sealing element in sealing contact with the shaft and groove bore. The sealing element having seal body first and second ends and tangs extending axially from the seal body first end. A shelf member has an outer groove wall and a shelf defining an inner groove wall. The inner and outer groove walls providing axial support to the sealing element in certain conditions of assembly and operation. The seal housing or the shelf member providing restraints, with a portion of the restraints in circumferential alignment with the tangs and blocking rotation of the sealing element. The shelf, located radially between the shaft and the restraints, blocks and prevents loss of the restraints.

IPC Classes  ?

  • F16J 15/00 - Sealings
  • F16J 15/3208 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic rings
  • F16J 15/3244 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with hydrodynamic pumping action

14.

SEAL ASSEMBLY WITH ANTI-ROTATION AND STABILITY FEATURES

      
Application Number US2019062843
Publication Number 2020/112558
Status In Force
Filing Date 2019-11-22
Publication Date 2020-06-04
Owner KALSI ENGINEERING, INC. (USA)
Inventor
  • Richie, Aaron, Paul
  • Dietle, Lannie, Laroy
  • Gobeli, Jeffrey, D.

Abstract

A rotary shaft sealing assembly having a rotatable shaft, a sea! housing having a groove bore located radially outward of and facing the rotatable shaft, and a sealing element in sealing contact with the shaft and groove bore. The sealing element having seal body first and second ends and tangs extending axially from the seal body first end. A shelf member has an outer groove wall and a shelf defining an inner groove wall. The inner and outer groove walls providing axial support to the sealing element in certain conditions of assembly and operation. The seal housing or the shelf member providing restraints, with a portion of the restraints in circumferential alignment with the tangs and blocking rotation of the sealing element. The shelf, located radially between the shaft and the restraints, blocks and prevents loss of the restraints.

IPC Classes  ?

  • F16J 15/3208 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic rings
  • F16J 15/00 - Sealings
  • F16J 15/3244 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with hydrodynamic pumping action

15.

Seal assembly with anti-rotation and stability features

      
Application Number 16692632
Grant Number 11300208
Status In Force
Filing Date 2019-11-22
First Publication Date 2020-05-28
Grant Date 2022-04-12
Owner KALSI ENGINEERING, INC. (USA)
Inventor
  • Richie, Aaron P
  • Dietle, Lannie L
  • Gobeli, Jeffrey D

Abstract

A rotary shaft sealing assembly having a rotatable shaft, a seal housing having a groove bore located radially outward of and facing the rotatable shaft, and a sealing element in sealing contact with the shaft and groove bore. The sealing element having seal body first and second ends and tangs extending axially from the seal body first end. A shelf member has an outer groove wall and a shelf defining an inner groove wall. The inner and outer groove walls providing axial support to the sealing element in certain conditions of assembly and operation. The seal housing or the shelf member providing restraints, with a portion of the restraints in circumferential alignment with the tangs and blocking rotation of the sealing element. The shelf, located radially between the shaft and the restraints, blocks and prevents loss of the restraints.

IPC Classes  ?

  • F16J 15/3244 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with hydrodynamic pumping action
  • F16J 15/16 - Sealings between relatively-moving surfaces
  • F16J 15/324 - Arrangements for lubrication or cooling of the sealing itself
  • F16J 15/3212 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic rings with metal springs
  • F16J 15/3268 - Mounting of sealing rings
  • F16J 15/3236 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips with at least one lip for each surface, e.g. U-cup packings

16.

Rotary seal and method of making same

      
Application Number 16407946
Grant Number 11668399
Status In Force
Filing Date 2019-05-09
First Publication Date 2019-11-21
Grant Date 2023-06-06
Owner KALSI ENGINEERING, INC. (USA)
Inventor Dietle, Lannie L.

Abstract

A seal configuration, mold and manufacturing process that inhibits undesirable elastomer migration onto critical radially inwardly facing portions of a plastic-lined dynamic sealing lip, for improved high-pressure seal operation.

IPC Classes  ?

  • F16J 15/54 - Other sealings for rotating shafts
  • B29C 43/18 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
  • F16C 33/80 - Labyrinth sealings
  • F16J 15/3208 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic rings
  • F16J 15/328 - Manufacturing methods specially adapted for elastic sealings
  • B29C 33/42 - Moulds or coresDetails thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
  • B29C 33/76 - Cores

17.

ROTARY SEAL AND METHOD OF MAKING SAME

      
Application Number US2019031527
Publication Number 2019/222023
Status In Force
Filing Date 2019-05-09
Publication Date 2019-11-21
Owner KALSI ENGINEERING, INC. (USA)
Inventor Dietle, Lannie L.

Abstract

A seal configuration, mold and manufacturing process that inhibits undesirable elastomer migration onto critical radially inwardly facing portions of a plastic-lined dynamic sealing lip, for improved high-pressure seal operation.

IPC Classes  ?

  • B29C 39/26 - Moulds or cores
  • B29C 33/60 - Releasing, lubricating or separating agents
  • B29C 39/02 - Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressureApparatus therefor for making articles of definite length, i.e. discrete articles
  • B29C 33/68 - Release sheets
  • F16J 15/3204 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
  • F16J 15/324 - Arrangements for lubrication or cooling of the sealing itself
  • F16J 15/328 - Manufacturing methods specially adapted for elastic sealings

18.

ROTARY SEAL AND METHOD OF MAKING SAME

      
Document Number 03097674
Status In Force
Filing Date 2019-05-09
Open to Public Date 2019-11-21
Grant Date 2023-12-19
Owner KALSI ENGINEERING INC. (USA)
Inventor Dietle, Lannie L.

Abstract

A seal configuration, mold and manufacturing process that inhibits undesirable elastomer migration onto critical radially inwardly facing portions of a plastic-lined dynamic sealing lip, for improved high-pressure seal operation. The mold including a mold core, cap and collar and defining an annular lip forming surface and a cavity groove for forming an axial extension of the seal. the process includes installing an annular plastic liner on the mold core and introducing an elastomer and applying pressure and temperature to vulcanize the elastomer and remold a liner inner surface to the shape of the lip forming suiface. The seal has a lubricant end, an environment end, an axial extension extending axially beyond the lubricant end and a dynamic sealing surface. A portion of the axial extension is removed by a machining operation to produce a machined seal surface.

IPC Classes  ?

  • B29C 33/60 - Releasing, lubricating or separating agents
  • B29C 33/68 - Release sheets
  • B29C 39/02 - Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressureApparatus therefor for making articles of definite length, i.e. discrete articles
  • B29C 39/26 - Moulds or cores
  • F16J 15/3204 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
  • F16J 15/324 - Arrangements for lubrication or cooling of the sealing itself
  • F16J 15/328 - Manufacturing methods specially adapted for elastic sealings

19.

SEAL ARRANGEMENT FOR ROTATING EQUIPMENT

      
Document Number 03079430
Status In Force
Filing Date 2018-10-16
Open to Public Date 2019-04-25
Grant Date 2021-01-19
Owner KALSI ENGINEERING INC. (USA)
Inventor Richie, Aaron Paul

Abstract

A sealing arrangement having inboard and outboard dynamic seals in a housing separated by a barrier fluid and having a sealed relationship with a relatively movable bearing-guided shaft. A bearing chamber having bearing lubricant exposed to the inboard dynamic seal. The inboard dynamic seal is a hydrodynamic seal having a hydrodynamic pumping action in response to relative rotation between the shaft and the inboard dynamic seal. The hydrodynamic pumping action forcing a film of the bearing lubricant between the inboard dynamic seal and the shaft. The hydrodynamic pumping-related leakage of the inboard dynamic seal being returned to the bearing chamber in which the shaft guidance bearings are located.

IPC Classes  ?

  • E21B 33/08 - WipersOil savers
  • F16J 15/324 - Arrangements for lubrication or cooling of the sealing itself
  • F16J 15/40 - Sealings between relatively-moving surfaces by means of fluid
  • F16J 15/48 - Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings influenced by the pressure within the member to be sealed

20.

SEAL ARRANGEMENT FOR ROTATING EQUIPMENT

      
Application Number US2018056114
Publication Number 2019/079321
Status In Force
Filing Date 2018-10-16
Publication Date 2019-04-25
Owner KALSI ENGINEERING INC. (USA)
Inventor Richie, Aaron Paul

Abstract

A sealing arrangement having inboard and outboard dynamic seals in a housing separated by a barrier fluid and having a sealed relationship with a relatively movable bearing-guided shaft. A bearing chamber having bearing lubricant exposed to the inboard dynamic seal. The inboard dynamic seal is a hydrodynamic seal having a hydrodynamic pumping action in response to relative rotation between the shaft and the inboard dynamic seal. The hydrodynamic pumping action forcing a film of the bearing lubricant between the inboard dynamic seal and the shaft. The hydrodynamic pumping-related leakage of the inboard dynamic seal being returned to the bearing chamber in which the shaft guidance bearings are located.

IPC Classes  ?

  • F16J 15/34 - Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
  • F16J 15/16 - Sealings between relatively-moving surfaces
  • E21B 4/00 - Drives for drilling, used in the borehole
  • E21B 10/25 - Roller bits characterised by bearing, lubrication or sealing details characterised by sealing details

21.

Seal arrangement for rotating equipment

      
Application Number 16162008
Grant Number 10435981
Status In Force
Filing Date 2018-10-16
First Publication Date 2019-04-18
Grant Date 2019-10-08
Owner KALSI ENGINEERING INC. (USA)
Inventor Richie, Aaron Paul

Abstract

A sealing arrangement having inboard and outboard dynamic seals in a housing separated by a barrier fluid and having a sealed relationship with a relatively movable bearing-guided shaft. A bearing chamber having bearing lubricant exposed to the inboard dynamic seal. The inboard dynamic seal is a hydrodynamic seal having a hydrodynamic pumping action in response to relative rotation between the shaft and the inboard dynamic seal. The hydrodynamic pumping action forcing a film of the bearing lubricant between the inboard dynamic seal and the shaft. The hydrodynamic pumping-related leakage of the inboard dynamic seal being returned to the bearing chamber in which the shaft guidance bearings are located.

IPC Classes  ?

  • E21B 33/08 - WipersOil savers
  • F16J 15/16 - Sealings between relatively-moving surfaces
  • F16J 15/48 - Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings influenced by the pressure within the member to be sealed
  • F16J 15/00 - Sealings
  • F16J 15/324 - Arrangements for lubrication or cooling of the sealing itself
  • E21B 4/00 - Drives for drilling, used in the borehole
  • F16J 15/40 - Sealings between relatively-moving surfaces by means of fluid
  • E21B 10/25 - Roller bits characterised by bearing, lubrication or sealing details characterised by sealing details

22.

SEAL FOR BI-DIRECTIONAL ROTATION AND PRESSURE

      
Document Number 03060411
Status In Force
Filing Date 2018-05-11
Open to Public Date 2018-11-22
Grant Date 2022-06-21
Owner KALSI ENGINEERING INC. (USA)
Inventor Dietle, Lannie Laroy

Abstract

A hydrodynamically lubricating rotary seal for differential pressure acting in either axial direction that establishes compressed sealing engagement with a relatively rotatable surface and wedges a film of lubricating fluid into the interface between the rotary seal and the relatively rotatable surface in response to relative rotation that may occur in the clockwise or counter-clockwise direction. A multi-function edge and angled flank of the hydrodynamic wave form are truncated by the lubricant end of the seal, improving the dynamic performance of the seal in circumstances where the pressure acting on the environment end of the seal is greater than the pressure acting on the lubricant end of the seal. This improvement is believed to be the result of reduced contact pressure, and reduced radial deformation of the wave form, compared to prior art seals.

IPC Classes  ?

  • F16J 15/3208 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic rings
  • F16J 15/3232 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
  • F16J 15/324 - Arrangements for lubrication or cooling of the sealing itself

23.

Seal for bi-directional rotation and pressure

      
Application Number 15976598
Grant Number 10302200
Status In Force
Filing Date 2018-05-10
First Publication Date 2018-11-22
Grant Date 2019-05-28
Owner Kalsi Engineering, Inc. (USA)
Inventor Dietle, Lannie L.

Abstract

A hydrodynamically lubricating rotary seal for differential pressure acting in either axial direction that establishes compressed sealing engagement with a relatively rotatable surface and wedges a film of lubricating fluid into the interface between the rotary seal and the relatively rotatable surface in response to relative rotation that may occur in the clockwise or counter-clockwise direction. A multi-function edge and angled flank of the hydrodynamic wave form are truncated by the lubricant end of the seal, improving the dynamic performance of the seal in circumstances where the pressure acting on the environment end of the seal is greater than the pressure acting on the lubricant end of the seal. This improvement is believed to be the result of reduced contact pressure, and reduced radial deformation of the wave form, compared to prior art seals.

IPC Classes  ?

  • F16J 15/32 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
  • F16J 15/3204 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
  • F16J 15/324 - Arrangements for lubrication or cooling of the sealing itself
  • F16J 15/3244 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with hydrodynamic pumping action

24.

SEAL FOR BI-DIRECTIONAL ROTATION AND PRESSURE

      
Application Number US2018032405
Publication Number 2018/213138
Status In Force
Filing Date 2018-05-11
Publication Date 2018-11-22
Owner KALSI ENGINEERING INC. (USA)
Inventor Dietle, Lannie Laroy

Abstract

A hydrodynamically lubricating rotary seal for differential pressure acting in either axial direction that establishes compressed sealing engagement with a relatively rotatable surface and wedges a film of lubricating fluid into the interface between the rotary seal and the relatively rotatable surface in response to relative rotation that may occur in the clockwise or counter-clockwise direction. A multi-function edge and angled flank of the hydrodynamic wave form are truncated by the lubricant end of the seal, improving the dynamic performance of the seal in circumstances where the pressure acting on the environment end of the seal is greater than the pressure acting on the lubricant end of the seal. This improvement is believed to be the result of reduced contact pressure, and reduced radial deformation of the wave form, compared to prior art seals.

IPC Classes  ?

  • F16J 15/3208 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic rings
  • F16J 15/3232 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
  • F16J 15/324 - Arrangements for lubrication or cooling of the sealing itself

25.

High pressure dynamic sealing device

      
Application Number 15833593
Grant Number 10330203
Status In Force
Filing Date 2017-12-06
First Publication Date 2018-08-02
Grant Date 2019-06-25
Owner KALSI ENGINEERING INC. (USA)
Inventor Dietle, Lannie Laroy

Abstract

A sealing assembly includes a first machine component having a seal groove defined by radially oriented jacket support and energizer positioning walls and an energizer compressing wall that faces axially toward a second machine component. A seal located within the seal groove has an energizer element and a telescoping jacket. The jacket has a first leg portion having a jacket sealing surface facing toward the second machine component and an energizer contacting wall facing toward the energizer element. The energizer element is compressed between the energizer contacting and energizer compressing walls and loads the jacket sealing surface against the second machine component. A jacket second leg portion extends generally axially and has an energizer supporting wall facing toward the energizer element and a supported wall facing radially and adjoining the jacket support wall. The second leg portion is interposed between the energizer element and the jacket support wall.

IPC Classes  ?

  • F16J 15/34 - Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
  • F16J 15/16 - Sealings between relatively-moving surfaces
  • F16J 15/44 - Free-space packings
  • F16J 15/3268 - Mounting of sealing rings

26.

HIGH PRESSURE DYNAMIC SEALING DEVICE

      
Document Number 03048030
Status In Force
Filing Date 2017-12-27
Open to Public Date 2018-07-12
Grant Date 2019-10-15
Owner KALSI ENGINEERING INC. (USA)
Inventor Dietle, Lannie Laroy

Abstract

A sealing assembly includes a first machine component having a seal groove defined by radially oriented jacket support and energizer positioning walls and an energizer compressing wall that faces axially toward a second machine component. A seal located within the seal groove has an energizer element and a telescoping jacket. The jacket has a first leg portion having a jacket sealing surface facing toward the second machine component and an energizer contacting wall facing toward the energizer element. The energizer element is compressed between the energizer contacting and energizer compressing walls and loads the jacket sealing surface against the second machine component. A jacket second leg portion extends generally axially and has an energizer supporting wall facing toward the energizer element and a supported wall facing radially and adjoining the jacket support wall. The second leg portion is interposed between the energizer element and the jacket support wall.

IPC Classes  ?

27.

HIGH PRESSURE DYNAMIC SEALING DEVICE

      
Application Number US2017068511
Publication Number 2018/128886
Status In Force
Filing Date 2017-12-27
Publication Date 2018-07-12
Owner KALSI ENGINEERING INC. (USA)
Inventor Dietle, Lannie Laroy

Abstract

A sealing assembly includes a first machine component having a seal groove defined by radially oriented jacket support and energizer positioning walls and an energizer compressing wall that faces axially toward a second machine component. A seal located within the seal groove has an energizer element and a telescoping jacket. The jacket has a first leg portion having a jacket sealing surface facing toward the second machine component and an energizer contacting wall facing toward the energizer element. The energizer element is compressed between the energizer contacting and energizer compressing walls and loads the jacket sealing surface against the second machine component. A jacket second leg portion extends generally axially and has an energizer supporting wall facing toward the energizer element and a supported wall facing radially and adjoining the jacket support wall. The second leg portion is interposed between the energizer element and the jacket support wall.

IPC Classes  ?

28.

High pressure dynamic sealing arrangement

      
Application Number 15240823
Grant Number 09845879
Status In Force
Filing Date 2016-08-18
First Publication Date 2016-12-08
Grant Date 2017-12-19
Owner Kalsi Engineering, Inc. (USA)
Inventor
  • Dietle, Lannie Laroy
  • Ritchie, Aaron Paul

Abstract

The invention is a sealing assembly for equipment with movable shafts—such as coaxial and side port swivels, hydraulic swivels, and rotary control devices—that prevents the loss of a high pressure fluid through the clearance existing between a housing and the shaft. The invention is disclosed in the context of a coaxial swivel that conducts high pressure fluid from a stationary first conduit to a rotating second conduit that has dynamic runout, and may be misaligned relative to the first conduit.

IPC Classes  ?

  • F16J 9/00 - Piston-rings, seats thereforRing sealings of similar construction in general
  • F16J 15/16 - Sealings between relatively-moving surfaces
  • F16L 27/08 - Adjustable jointsJoints allowing movement allowing adjustment or movement only about the axis of one pipe
  • E21B 17/05 - Swivel joints

29.

KLS

      
Serial Number 86463959
Status Registered
Filing Date 2014-11-25
Registration Date 2016-05-10
Owner Kalsi Engineering, Incorporated ()
NICE Classes  ? 17 - Rubber and plastic; packing and insulating materials

Goods & Services

Sealing devices for shafts, valves, pressurized vessels, pipe connections and other industrial apparatus, namely, non-metal seals for use in the fields of upstream and downstream oil industry, mining, construction, dredging and other sub-surface applications

30.

DYNAMIC BACKUP RING ASSEMBLY

      
Document Number 02887886
Status In Force
Filing Date 2013-10-11
Open to Public Date 2014-04-17
Grant Date 2018-01-23
Owner KALSI ENGINEERING, INC. (USA)
Inventor
  • Richie, Aaron Paul
  • Dietle, Lannie Laroy

Abstract

A seal backup ring assembly is provided that eliminates fluid differential pressure acting radially on the backup ring, preventing collapse of the backup ring against a shaft. The backup ring is assembled so that the initial clearance (extrusion gap) between the backup ring and relatively rotating member is not affected by the differential pressure acting across the assembly. This allows for an initially small extrusion gap to be present throughout the differential pressure range.

IPC Classes  ?

  • F16J 15/18 - Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
  • F16J 15/44 - Free-space packings

31.

DYNAMIC BACKUP RING ASSEMBLY

      
Application Number US2013064700
Publication Number 2014/059375
Status In Force
Filing Date 2013-10-11
Publication Date 2014-04-17
Owner KALSI ENGINEERING, INC. (USA)
Inventor
  • Richie, Aaron Paul
  • Dietle, Lannie L.

Abstract

A seal backup ring assembly is provided that eliminates fluid differential pressure acting radially on the backup ring, preventing collapse of the backup ring against a shaft. The backup ring is assembled so that the initial clearance (extrusion gap) between the backup ring and relatively rotating member is not affected by the differential pressure acting across the assembly. This allows for an initially small extrusion gap to be present throughout the differential pressure range.

IPC Classes  ?

  • F16J 15/00 - Sealings
  • F16J 15/16 - Sealings between relatively-moving surfaces
  • F16J 15/32 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings

32.

Dynamic backup ring assembly

      
Application Number 14052553
Grant Number 09429238
Status In Force
Filing Date 2013-10-11
First Publication Date 2014-02-06
Grant Date 2016-08-30
Owner Kalsi Engineering, Inc. (USA)
Inventor
  • Richie, Aaron Paul
  • Dietle, Lannie Laroy

Abstract

A seal backup ring assembly is provided that eliminates fluid differential pressure acting radially on the backup ring, preventing collapse of the backup ring against a shaft. The backup ring is assembled so that the initial clearance (extrusion gap) between the backup ring and relatively rotating member is not affected by the differential pressure acting across the assembly. This allows for an initially small extrusion gap to be present throughout the differential pressure range.

IPC Classes  ?

  • F16J 9/00 - Piston-rings, seats thereforRing sealings of similar construction in general
  • F16J 15/44 - Free-space packings
  • F16J 15/00 - Sealings
  • F16J 15/16 - Sealings between relatively-moving surfaces

33.

Rotary seal with improved film distribution

      
Application Number 14028066
Grant Number 09121504
Status In Force
Filing Date 2013-09-16
First Publication Date 2014-01-09
Grant Date 2015-09-01
Owner Kalsi Engineering, Inc. (USA)
Inventor
  • Dietle, Lannie Laroy
  • Schroeder, John Erick

Abstract

The present invention is a generally circular rotary seal that establishes sealing between relatively rotatable machine components for lubricant retention and environmental exclusion, and incorporates seal geometry that interacts with the lubricant during relative rotation to distribute a lubricant film within the dynamic sealing interface. The features of a variable inlet size, a variable dynamic lip flank slope, and a reduction in the magnitude and circumferentially oriented portion of the lubricant side interfacial contact pressure zone at the narrowest part of the lip, individually or in combination thereof, serve to maximize interfacial lubrication in severe operating conditions, and also serve to minimize lubricant shear area, seal torque, seal volume, and wear, while ensuring retrofitability into the seal grooves of existing equipment.

IPC Classes  ?

  • F16J 15/32 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
  • F16J 15/16 - Sealings between relatively-moving surfaces

34.

Low torque hydrodynamic lip geometry for rotary seals

      
Application Number 13242107
Grant Number 09086151
Status In Force
Filing Date 2011-09-23
First Publication Date 2012-01-19
Grant Date 2015-07-21
Owner Kalsi Engineering Inc. (USA)
Inventor
  • Dietle, Lannie L.
  • Schroeder, John E.

Abstract

A hydrodynamically lubricating geometry for the generally circular dynamic sealing lip of rotary seals that are employed to partition a lubricant from an environment. The dynamic sealing lip is provided for establishing compressed sealing engagement with a relatively rotatable surface, and for wedging a film of lubricating fluid into the interface between the dynamic sealing lip and the relatively rotatable surface in response to relative rotation that may occur in the clockwise or the counter-clockwise direction. A wave form incorporating an elongated dimple provides the gradual convergence, efficient impingement angle, and gradual interfacial contact pressure rise that are conducive to efficient hydrodynamic wedging. Skewed elevated contact pressure zones produced by compression edge effects provide for controlled lubricant movement within the dynamic sealing interface between the seal and the relatively rotatable surface, producing enhanced lubrication and low running torque.

IPC Classes  ?

  • F16J 15/32 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings

35.

Rotary seal with supported inlet

      
Application Number 12816220
Grant Number 09121503
Status In Force
Filing Date 2010-06-15
First Publication Date 2011-06-16
Grant Date 2015-09-01
Owner Kalsi Engineering, Inc. (USA)
Inventor
  • Dietle, Lannie Laroy
  • Gobeli, Jeffrey D.

Abstract

A hydrodynamically lubricated sealing element for applications where the pressure of a contained fluid can be significantly greater than the pressure of the seal lubricant. The sealing element retains the pressure of the contained fluid and provides hydrodynamic lubricant pumping activity at the dynamic sealing interface to enhance service life. The invention is particularly suitable for oilfield drilling swivel washpipe assemblies, downhole drilling tools, and rotary mining equipment, and for applications such as artificial lift pump stuffing box assemblies and centrifugal pumps where a rotating shaft penetrates a pressurized reservoir that is filled with abrasive-laden liquids, mixtures, or slurries.

IPC Classes  ?

  • F16J 15/32 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
  • F16J 15/16 - Sealings between relatively-moving surfaces

36.

PRESSURE-BALANCED FLOATING SEAL HOUSING ASSEMBLY AND METHOD

      
Application Number US2010058437
Publication Number 2011/066575
Status In Force
Filing Date 2010-11-30
Publication Date 2011-06-03
Owner KALSI ENGINEERING, INC. (USA)
Inventor Dietle, Lannie, Laroy

Abstract

A dynamic sealing mechanism for a machine assembly that includes a seal housing of generally cylindrical form having opposed ends, the seal housing axially positioned between a pressure housing and a retaining member and laterally translatable relative to the pressure housing. The dynamic sealing mechanism includes a shaft located at least partially within the seal housing, the shaft having a sealing surface of generally cylindrical form, relatively movable with respect to the seal housing, and having at least one radial bearing positioned radially by the shaft and locating the radial position of the seal housing. At least three fluid pressure-generated forces act axially on the seal housing to produce a net fluid pressure-generated axial force that is negligible.

IPC Classes  ?

37.

Pressure-balanced floating seal housing assembly and method

      
Application Number 12957160
Grant Number 09316319
Status In Force
Filing Date 2010-11-30
First Publication Date 2011-06-02
Grant Date 2016-04-19
Owner Kalsi Engineering, Inc. (USA)
Inventor Dietle, Lannie Laroy

Abstract

A dynamic sealing mechanism for a machine assembly that includes a seal housing of generally cylindrical form having opposed ends, the seal housing axially positioned between a pressure housing and a retaining member and laterally translatable relative to the pressure housing. The dynamic sealing mechanism includes a shaft located at least partially within the seal housing, the shaft having a sealing surface of generally cylindrical form, relatively movable with respect to the seal housing, and having at least one radial bearing positioned radially by the shaft and locating the radial position of the seal housing. At least three fluid pressure-generated forces act axially on the seal housing to produce a net fluid pressure-generated axial force that is negligible.

IPC Classes  ?

  • F16J 9/00 - Piston-rings, seats thereforRing sealings of similar construction in general
  • F16J 15/44 - Free-space packings

38.

Rotary seal with truncated wave form

      
Application Number 12756889
Grant Number 09103445
Status In Force
Filing Date 2010-04-08
First Publication Date 2010-10-21
Grant Date 2015-08-11
Owner Kalsi Engineering, Inc. (USA)
Inventor
  • Schroeder, John Erick
  • Dietle, Lannie Laroy

Abstract

The present invention is a generally circular rotary seal that establishes sealing between relatively rotatable machine components for lubricant retention and environmental exclusion, and incorporates seal geometry that interacts with the lubricant during relative rotation to distribute a lubricant film within the dynamic sealing interface. A preferably curved elevated contact pressure zone serves to maximize interfacial lubrication in critical areas during severe operating conditions by utilizing lubricant that would otherwise escape at the trailing edge of the hydrodynamic waves. The zones are produced by geometry that serves to minimize lubricant shear area, seal torque, seal volume, and wear, while ensuring retrofitability into the seal grooves of existing equipment.

IPC Classes  ?

  • F16J 15/32 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
  • F16J 15/16 - Sealings between relatively-moving surfaces

39.

ROTARY SEAL WITH TRUNCATED WAVE FORM

      
Application Number US2010030424
Publication Number 2010/118253
Status In Force
Filing Date 2010-04-08
Publication Date 2010-10-14
Owner KALSI ENGINEERING, INC. (USA)
Inventor
  • Schroeder, John, Erik
  • Dietle, Lannie, Laroy

Abstract

The present invention is a generally circular rotary seal that establishes sealing between relatively rotatable machine components for lubricant retention and environmental exclusion, and incorporates seal geometry that interacts with the lubricant during relative rotation to distribute a lubricant film within the dynamic sealing interface. A preferably curved elevated contact pressure zone serves to maximize interfacial lubrication in critical areas during severe operating conditions by utilizing lubricant that would otherwise escape at the trailing edge of the hydrodynamic waves. The zones are produced by geometry that serves to minimize lubricant shear area, seal torque, seal volume, and wear, while ensuring retrofitability into the seal grooves of existing equipment.

IPC Classes  ?

  • F16J 15/32 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings

40.

Low torque hydrodynamic lip geometry for bi-directional rotation seals

      
Application Number 12480530
Grant Number 08056904
Status In Force
Filing Date 2009-06-08
First Publication Date 2009-10-08
Grant Date 2011-11-15
Owner Kalsi Engineering, Inc. (USA)
Inventor
  • Dietle, Lannie L.
  • Schroeder, John E.

Abstract

A hydrodynamically lubricating geometry for the generally circular dynamic sealing lip of rotary seals that are employed to partition a lubricant from an environment. The dynamic sealing lip is provided for establishing compressed sealing engagement with a relatively rotatable surface, and for wedging a film of lubricating fluid into the interface between the dynamic sealing lip and the relatively rotatable surface in response to relative rotation that may occur in the clockwise or the counter-clockwise direction. A wave form incorporating an elongated dimple provides the gradual convergence, efficient impingement angle, and gradual interfacial contact pressure rise that are conducive to efficient hydrodynamic wedging. Skewed elevated contact pressure zones produced by compression edge effects provide for controlled lubricant movement within the dynamic sealing interface between the seal and the relatively rotatable surface, producing enhanced lubrication and low running torque.

IPC Classes  ?

  • F16J 15/32 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings

41.

ROTARY SEAL WITH IMPROVED FILM DISTRIBUTION

      
Document Number 02887776
Status In Force
Filing Date 2008-09-02
Open to Public Date 2009-03-12
Grant Date 2016-05-10
Owner KALSI ENGINEERING, INC. (USA)
Inventor
  • Dietle, Lannie L.
  • Schroeder, John E.

Abstract

The present invention is a generally circular rotary seal that establishes sealing between relatively rotatable machine components for lubricant retention and environmental exclusion, and incorporates seal geometry that interacts with the lubricant during relative rotation to distribute a lubricant film within the dynamic sealing interface. The features of a variable inlet size, a variable dynamic lip flank slope, and a reduction in the magnitude and circumferentially oriented portion of the lubricant side interfacial contact pressure zone at the narrowest part of the lip, individually or in combination thereof, serve to maximize interfacial lubrication in severe operating conditions, and also serve to minimize lubricant shear area, seal torque, seal volume, and wear, while ensuring retrofltability into the seal grooves of existing equipment.

IPC Classes  ?

  • F16J 15/18 - Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
  • F16J 15/3216 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip supported in a direction parallel to the surfaces
  • F16J 15/324 - Arrangements for lubrication or cooling of the sealing itself
  • F16J 15/3244 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with hydrodynamic pumping action
  • F16J 15/3284 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structureSelection of materials

42.

ROTARY SEAL WITH IMPROVED FILM DISTRIBUTION

      
Application Number US2008010320
Publication Number 2009/032248
Status In Force
Filing Date 2008-09-02
Publication Date 2009-03-12
Owner KALSI ENGINEERING, INC. (USA)
Inventor
  • Dietle, Lannie, L.
  • Schroeder, John, E.

Abstract

The present invention is a generally circular rotary seal that establishes sealing between relatively rotatable machine components for lubricant retention and environmental exclusion, and incorporates seal geometry that interacts with the lubricant during relative rotation to distribute a lubricant film within the dynamic sealing interface. The features of a variable inlet size, a variable dynamic lip flank slope, and a reduction in the magnitude and circumferentially oriented portion of the lubricant side interfacial contact pressure zone at the narrowest part of the lip, individually or in combination thereof, serve to maximize interfacial lubrication in severe operating conditions, and also serve to minimize lubricant shear area, seal torque, seal volume, and wear, while ensuring retrofitability into the seal grooves of existing equipment.

IPC Classes  ?

  • F16J 15/32 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings

43.

Rotary seal with improved film distribution

      
Application Number 12231348
Grant Number 08550467
Status In Force
Filing Date 2008-09-02
First Publication Date 2009-01-01
Grant Date 2013-10-08
Owner Kalsi Engineering, Inc. (USA)
Inventor
  • Dietle, Lannie Laroy
  • Schroeder, John Erick

Abstract

The present invention is a generally circular rotary seal that establishes sealing between relatively rotatable machine components for lubricant retention and environmental exclusion, and incorporates seal geometry that interacts with the lubricant during relative rotation to distribute a lubricant film within the dynamic sealing interface. The features of a variable inlet size, a variable dynamic lip flank slope, and a reduction in the magnitude and circumferentially oriented portion of the lubricant side interfacial contact pressure zone at the narrowest part of the lip, individually or in combination thereof, serve to maximize interfacial lubrication in severe operating conditions, and also serve to minimize lubricant shear area, seal torque, seal volume, and wear, while ensuring retrofitability into the seal grooves of existing equipment.

IPC Classes  ?

  • F16J 15/32 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings

44.

BIDIRECTIONAL HYDRODYNAMIC THRUST BEARING

      
Application Number US2006062131
Publication Number 2007/081639
Status In Force
Filing Date 2006-12-14
Publication Date 2007-07-19
Owner KALSI ENGINEERING, INC. (USA)
Inventor
  • Richie, Aaron
  • Dietle, Lannie, L.

Abstract

A thrust bearing assembly including a flexible thrust washer sandwiched between first and second races. The thrust washer includes notches between adjacent support regions. When a thrust load is applied to the bearing assembly, the thrust washer elastically flexes at the notched or unsupported regions and creates undulations in the washer's dynamic surface to create an initial hydrodynamic fluid wedge with respect to the corresponding dynamic surface of the second race. The gradually converging geometry created by these undulations promotes a strong hydrodynamic action that wedges a lubricant film of a predictable magnitude into the dynamic interface between the thrust washer and the second race in response to relative rotation. This lubricant film physically separates the dynamic surfaces of the thrust washer and second race from each other, thus minimizing asperity contact, and reducing friction, wear and bearing-generated heat, while permitting operation at higher load and speed combinations.

IPC Classes  ?

  • F16C 32/06 - Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings

45.

STABILIZING GEOMETRY FOR HYDRODYNAMIC ROTARY SEALS

      
Application Number US2007060111
Publication Number 2007/079497
Status In Force
Filing Date 2007-01-04
Publication Date 2007-07-12
Owner KALSI ENGINEERING, INC. (USA)
Inventor
  • Dietle, Lannie, L.
  • Schroeder, John E.

Abstract

A hydrodynamic sealing assembly including a first component having first and second walls and a peripheral wall defining a seal groove, a second component having a rotatable surface relative to said first component, and a hydrodynamic seal comprising a seal body of generally ring-shaped configuration having a circumference. The seal body includes hydrodynamic and static sealing lips each having a cross-sectional area that substantially vary in time with each other about the circumference. In an uninstalled condition, the seal body has a length defined between first and second seal body ends which varies in time with the hydrodynamic sealing lip cross-sectional area. The first and second ends generally face the first and second walls, respectively. In the uninstalled condition, the first end is angulated relative to the first wall and the second end is angulated relative to the second wall. The seal body has a twist-limiting surface adjacent the static sealing lip. In the uninstalled condition, the twist-limiting surface is angulated relative to the peripheral wall and varies along the circumference. A seal body discontinuity and a first component discontinuity mate to prevent rotation of the seal body relative to the first component.

IPC Classes  ?

  • F16J 15/32 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings

46.

FILLED HYDRODYNAMIC SEAL WITH CONTACT PRESSURE CONTROL, ANTI-ROTATION AND FILLER RETENTION

      
Application Number US2006027717
Publication Number 2007/011883
Status In Force
Filing Date 2006-07-18
Publication Date 2007-01-25
Owner KALSI ENGINEERING, INC. (USA)
Inventor
  • Schroeder, John, E.
  • Gobeli, Jeffrey, D.
  • Dietle, Lannie, L.

Abstract

A sealing assembly for partitioning a first fluid from a second fluid includes a first machine component defining a seal groove adjoined a pocket recess and a second machine component having a relatively rotatable surface. A rotary seal, in sealing engagement with the first and second machine components, includes a seal body having a ring-like construction and a predetermined modulus of elasticity. The seal body defines a dynamic sealing lip having a dynamic sealing surface and has an annular recess defining a plurality of retaini ridges and depressions. An energizer element engages the plurality of retaining ridges and depressions in the annular recess. The energizer element has a modulus of elasticity that is different than the predetermined modulus of elasticity of the seal body. An anti-rotation projection engages the seal body and extends from the seal body into the pocket recess of the first machine component.

IPC Classes  ?

  • F16J 15/32 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings

47.

Low torque hydrodynamic lip geometry for bi-directional rotation seals

      
Application Number 11386209
Grant Number 07562878
Status In Force
Filing Date 2006-03-22
First Publication Date 2006-09-28
Grant Date 2009-07-21
Owner Kalsi Engineering, Inc. (USA)
Inventor
  • Dietle, Lannie L.
  • Schroeder, John E.

Abstract

A hydrodynamically lubricating geometry for the generally circular dynamic sealing lip of rotary seals that are employed to partition a lubricant from an environment. The dynamic sealing lip is provided for establishing compressed sealing engagement with a relatively rotatable surface, and for wedging a film of lubricating fluid into the interface between the dynamic sealing lip and the relatively rotatable surface in response to relative rotation that may occur in the clockwise or the counter-clockwise direction. A wave form incorporating an elongated dimple provides the gradual convergence, efficient impingement angle, and gradual interfacial contact pressure rise that are conducive to efficient hydrodynamic wedging. Skewed elevated contact pressure zones produced by compression edge effects provide for controlled lubricant movement within the dynamic sealing interface between the seal and the relatively rotatable surface, producing enhanced lubrication and low running torque.

IPC Classes  ?

  • F16J 15/32 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings

48.

LOW TORQUE HYDRODYNAMIC LIP GEOMETRY FOR BI-DIRECTIONAL ROTATION SEALS

      
Document Number 02601617
Status In Force
Filing Date 2006-03-22
Open to Public Date 2006-09-28
Grant Date 2016-09-20
Owner KALSI ENGINEERING, INC. (USA)
Inventor
  • Dietle, Lannie L.
  • Schroeder, John E.

Abstract

A hydrodynamically lubricating geometry for the generally circular dynamic sealing lip of rotary seals that are employed to partition a lubricant from an environment. The dynamic sealing lip is provided for establishing compressed sealing engagement with a relatively rotatable surface, and for wedging a film of lubricating fluid into the interface between the dynamic sealing lip and the relatively rotatable surface in response to relative rotation that may occur in the clockwise or the counter-clockwise direction. A wave form incorporating an elongated dimple provides the gradual convergence, efficient impingement angle, and gradual interfacial contact pressure rise that are conducive to efficient hydrodynamic wedging. Skewed elevated contact pressure zones produced by compression edge effects provide for controlled lubricant movement within the dynamic sealing interface between the seal and the relatively rotatable surface, producing enhanced lubrication and low running torque.

IPC Classes  ?

  • F16J 15/3208 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic rings
  • F16J 15/3236 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips with at least one lip for each surface, e.g. U-cup packings
  • F16J 15/324 - Arrangements for lubrication or cooling of the sealing itself
  • F16J 15/3244 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with hydrodynamic pumping action

49.

KVAP

      
Serial Number 78972213
Status Registered
Filing Date 2006-09-12
Registration Date 2007-08-07
Owner KALSI ENGINEERING, INC. ()
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

Computer software, namely, design basis calculation software for valves

50.

LIFE

      
Serial Number 78972202
Status Registered
Filing Date 2006-09-12
Registration Date 2007-07-17
Owner KALSI ENGINEERING, INC. ()
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

Computer software, namely, fatigue evaluation software for valve actuators

51.

Rotary shaft sealing assembly

      
Application Number 10982821
Grant Number 07798496
Status In Force
Filing Date 2004-11-05
First Publication Date 2005-05-05
Grant Date 2010-09-21
Owner Kalsi Engineering, Inc. (USA)
Inventor
  • Dietle, Lannie L.
  • Schroeder, John E.
  • Kalsi, Manmohan S.
  • Alvarez, Patricio D.

Abstract

A rotary shaft sealing assembly in which a first fluid is partitioned from a second fluid in a housing assembly having a rotary shaft located at least partially within. In one embodiment a lip seal is lubricated and flushed with a pressure-generating seal ring preferably having an angled diverting feature. The pressure-generating seal ring and a hydrodynamic seal may be used to define a lubricant-filled region with each of the seals having hydrodynamic inlets facing the lubricant-filled region. Another aspect of the sealing assembly is having a seal to contain pressurized lubricant while withstanding high rotary speeds. Another rotary shaft sealing assembly embodiment includes a lubricant supply providing a lubricant at an elevated pressure to a region between a lip seal and a hydrodynamic seal with a flow control regulating the flow of lubricant past the lip seal. The hydrodynamic seal may include an energizer element having a modulus of elasticity greater than the modulus of elasticity of a sealing lip of the hydrodynamic seal.

IPC Classes  ?

  • F16J 15/32 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings

52.

CVAP

      
Serial Number 74696735
Status Registered
Filing Date 1995-07-03
Registration Date 1996-11-12
Owner KALSI ENGINEERING, INC. ()
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

computer program for designing and analyzing check valves

53.

KALSI SEALS

      
Serial Number 73750373
Status Registered
Filing Date 1988-09-06
Registration Date 1990-01-16
Owner KALSI ENGINEERING, INC. ()
NICE Classes  ? 17 - Rubber and plastic; packing and insulating materials

Goods & Services

SEALING DEVICES FOR SHAFTS, VALVES, PRESSURIZED VESSELS, PIPE CONNECTIONS AND OTHER INDUSTRIAL APPARATUS