Goods & Services

Machines, apparatus, instruments, devices, and accessories for lighting, ventilation, drainage, irrigation, water supply, and sanitary purposes, including pipes, fire hydrants, and sprinklers; main water conduits, poles, tanks, reservoirs, all of them circular.

Abstract

A strip assembly helically windable to form a pipe is disclosed. The strip assembly includes a pair of joined elongate strips, each strip having a strip width and a strip height and each strip including: a base; at least one longitudinal, rib upstanding from the base; a pair of spaced apart longitudinal parallel edges; and an angled, joining end surface. Each joining end surface has a joining width, the joining, width at least 5% greater than the strip width. Also each joining end surface has a joining height, the joining height at least 10% greater than the strip height. The additional joint area provided by the angled joining end surfaces provides a significantly stronger joint.

IPC Classes  ?

• F16L 9/16 - Rigid pipes wound from sheets or strips, with or without reinforcement
• F16L 11/16 - Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics wound from profiled strips or bands
• F16L 11/24 - Hoses, i.e. flexible pipes wound from strips or bands
• B29C 53/78 - Winding and joining, e.g. winding spirally helically using profiled sheets or strips
• B29C 65/02 - Joining of preformed partsApparatus therefor by heating, with or without pressure

Abstract

A strip helically windable to form a pipe is disclosed. The strip includes: a base having an inner face for forming an internal wall of the helically wound pipe; a pair of sliding lock complementary connecting formations extending along opposite edge portions of an outer face of the base, the sliding lock complementary connecting formations adapted to interlock when the strip is helically wound; and a pair of non-sliding lock complementary connecting formations extending along opposite edge portions of the outer face of the base, the non-sliding lock complementary connecting formations adapted to gripably interlock when the strip is helically wound, the non-sliding connecting formations including a male formation and a female formation, the male formation including a head interlockably receivable in a cavity formed by the female formation, the cavity having a cavity wall, the female formation including a pair of parallel spaced apart and separate gripping portions, the gripping portions extending towards each other from opposite sides of the cavity wall, the gripping portions grippably engagable with the head of the male formation of the non-sliding connecting formations.

IPC Classes  ?

• B29C 53/78 - Winding and joining, e.g. winding spirally helically using profiled sheets or strips
• F16L 9/16 - Rigid pipes wound from sheets or strips, with or without reinforcement
• F16L 11/16 - Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics wound from profiled strips or bands

Abstract

A winding and welding machine tor lining an underground conduit with a helically wound pipe having and extruding assembly is disclosed. The machine includes: a drive assembly mounted to a frame for driving a strip into a strip path in a winding direction so as to present an incoming first edge to an adjacent second edge of a wound convolution of the strip and an extruding assembly mounted to the drive assembly or the frame. The extruding assembly includes an extruder. The extruder includes: a screw having a feed throat, and a welding rod pelletising assembly including a pellettiser for delivering pelletised plastic to the feed throat. The extruder includes a delivery nozzle mounted a barrel. An air heating assembly including a hot air delivery conduit having an annular exit formed in part by the delivery nozzle of the extruder is also disclosed.

IPC Classes  ?

• B29C 63/32 - Lining or sheathing of internal surfaces using sheet or web-like material by winding helically
• B29C 53/72 - Winding and joining, e.g. winding spirally helically using external forming surfaces

Abstract

A winding cage for winding a helically wound pipe from an elongate ribbed strip having opposed joinable edge portions is disclosed. The winding cage includes: a curved primary frame, the curved primary frame describing a primary arc of at least 120 degrees; a strip guiding assembly disposed around and supported by the curved primary frame, the strip guiding assembly arranged to guide a strip around a helical path, the strip guiding assembly defining a strip path, the strip path forming at least a portion of a helix having a longitudinal axis; and a plurality of arms spread circumferentially around and extending from the curved primary frame in a direction having a component parallel to the longitudinal axis, the arms forming part of the strip guiding assembly and arranged to support respective guide sub-assemblies.

IPC Classes  ?

• B29C 63/32 - Lining or sheathing of internal surfaces using sheet or web-like material by winding helically
• B29C 53/78 - Winding and joining, e.g. winding spirally helically using profiled sheets or strips
• F16L 55/18 - Appliances for use in repairing pipes
• F16L 55/162 - Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe

Abstract

A winding cage, for winding a helically wound pipe from an elongate ribbed strip having at least one rib and having opposed joinable edge portions, is disclosed. The winding cage includes: a plurality of spaced apart strip guide rollers, the strip guide rollers spaced around a longitudinal winding cage axis; a proximal support frame; a distal support frame having, the proximal and distal support frames spaced apart from each other and together supporting the plurality of spaced apart strip guide rollers; a proximal frame bridge, the bridge extending away from the proximal frame and bridging between spaced apart first and second ends of the proximal support frame; and a proximal mount on the bridge and a distal mount on the distal support frame, the proximal and distal mounts for receiving a strip driver assembly, the strip driver assembly for driving the strip into the winding cage. The bridge forms part of a mouth opening into the winding cage. The mouth is for accommodating the strip driver assembly.

IPC Classes  ?

• B29C 63/32 - Lining or sheathing of internal surfaces using sheet or web-like material by winding helically
• B29C 53/78 - Winding and joining, e.g. winding spirally helically using profiled sheets or strips
• F16L 55/18 - Appliances for use in repairing pipes
• F16L 55/162 - Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe

Goods & Services

Pipes and tubing in this class; profile strips of plastics material for producing tubular liners for lining of passageways; pipe liners of plastics material. Installation and laying of pipes; pipe rehabilitation services including relining of underground passageways especially sewers; pipeline construction and maintenance; machinery installation, maintenance and repair.

Goods & Services

Flexible pipes of PVC or polyethylene; non-metallic flexible pipes; tubing consisting of plastic for rehabilitating pipelines and plumbing systems; plastic composite material in the form of strip profiles for producing tubular liners for lining of passageways; reinforcing materials not of metal for pipes, namely, pipe liners of plastics material Installation and laying of pipes; pipe rehabilitation services including relining of underground passageways especially sewers; pipeline construction and maintenance; machinery installation, maintenance and repair

Abstract

An apparatus for lining an underground conduit is disclosed. The apparatus (10) includes an annular frame (40) and a strip guide disposed around and supported by the annular frame (40). The strip guide is arranged to guide a strip (12) around a helical path when the machine is in use. A drive assembly (70) is mounted to the frame (40) for driving the strip (12) so as to present an incoming first edge (16) to an adjacent second edge (18) of a wound convolution of the strip. An extruder (80) is mounted to the frame, the extruder having a nozzle (85) for extruding a molten bead of plastic onto the strip (12). A multi-stage air heater including a first heating stage (50) powered by compressed air and a second heating stage (150) powered by electricity, the multi-stage heater is provided for generating heated air and a nozzle (95) for directing the heated air onto the plastic strip (12) is also disclosed.

IPC Classes  ?

• B29C 65/02 - Joining of preformed partsApparatus therefor by heating, with or without pressure
• B29C 53/38 - Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges
• B29C 53/40 - Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of definite length, i.e. discrete articles
• B29C 53/56 - Winding and joining, e.g. winding spirally

Abstract

A method is disclosed for winding a composite strip onto a spool having a hub in which the strip includes a plurality of laterally spaced apart lengthwise extending rib portions upstanding from the base portion. The method comprises the steps of feeding the strip towards the hub of the spool; driving the fed strip through a roller set so as to plastically deform the strip to give it a curved base portion; and winding the deformed strip onto the hub to form spooled strip, the winding creating tension in the strip. The plastic deformation of the strip through the roller set substantially reduces the tension in the strip that would otherwise occur.

IPC Classes  ?

• B29C 53/00 - Shaping by bending, folding, twisting, straightening or flatteningApparatus therefor
• B65H 54/28 - Traversing devicesPackage-shaping arrangements
• B29C 53/56 - Winding and joining, e.g. winding spirally
• B29C 53/66 - Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels rotatable about the winding axis with axially movable winding feed member
• B29C 53/58 - Winding and joining, e.g. winding spirally helically
• B29C 53/68 - Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels with rotatable winding feed member
• B29C 65/00 - Joining of preformed partsApparatus therefor
• B29C 53/78 - Winding and joining, e.g. winding spirally helically using profiled sheets or strips

Abstract

A composite strip 10 windable to form a helical pipe for transporting fluid is disclosed. The composite strip comprises: an elongate plastic strip 11 having a base portion 12, the base portion 12 having an upper side defining an outer face 15; and at least one lengthwise extending composite rib portion 20 upstanding from the outer face 15 of the base portion 12. The rib portion 20 has a distal end 23 remote from the base portion 12. The composite rib portion comprises: an elongate inboard reinforcing member 30 disposed within or adjacent to the base portion 12; an elongate outboard reinforcing 40 member disposed within the distal end 20 of the rib portion 20 parallel to the inboard reinforcing member 30; and an elongate intermediate plastic web 23 portion extending between the inboard and outboard reinforcing members 30, 40. When wound into a helical pipe, the composite rib portion 20 reinforces the pipe against radial crushing loads.

IPC Classes  ?

• F16L 11/08 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall

Abstract

A spool winding assembly for winding a composite strip onto a spool having a hub is disclosed. The strip includes an elongate plastic strip having a flat base portion and a plurality of laterally spaced apart lengthwise extending rib portions upstanding from the base portion; and a plurality of elongate reinforcing members extending lengthwise within respective rib portions, the rib portions and the reinforcing members forming composite ribs. The assembly includes: a main frame, a spool holder for rotatably supporting the spool relative to the main frame, a spool drive unit for driving the spool with respect to the main frame, a carriage mounted for lateral movement with respect to the spool, a bender mounted to the carriage for receiving the strip as it is fed towards the hub of the spool and for deforming the strip to give it a curved base portion, and a bender drive unit operably connected to the bender for driving the strip through the bender.

IPC Classes  ?

• B29C 53/78 - Winding and joining, e.g. winding spirally helically using profiled sheets or strips

Abstract

A composite strip 10 windable to form a helical pipe is disclosed. The composite strip 10 comprises: an elongate plastic strip 11 having a base portion 12 and at least one lengthwise extending rib portion 20 upstanding from the base portion 12; and an elongate reinforcing strip 30 extending lengthwise and supported laterally by the rib portion 20, the reinforcing strip 30 having a height to thickness ratio of at least three to one and orientated substantially perpendicular to the base portion 12. When wound into a helical pipe, the reinforcing strip 30 reinforces the pipe against radial crushing loads. A bead 40 seals the reinforcing strip 30 from the environment. Desirably the composite strip 10 further comprises: a planar lamina 50 extending lengthwise and bonded to the base portion 12, the lamina 50 having a higher Young's modulus and strength than those of the plastic strip 11. The lamina 50 greatly improves the pressure rating of a pipe wound from the strip 10.

IPC Classes  ?

• F16L 9/16 - Rigid pipes wound from sheets or strips, with or without reinforcement

Goods & Services

Pipes and tubing in this class; profile strips of plastics material for producing tubular liners for lining of passageways; and pipe liners of plastics material. Installation and laying of pipes; pipe rehabilitation services including relining of underground passageways especially sewers; pipeline construction and maintenance; machinery installation, maintenance and repair.

Goods & Services

Pipes and tubing in this class; profile strips of plastics material for producing tubular liners for lining of passageways; and pipe liners of plastics material. Installation and laying of pipes; pipe rehabilitation services including relining of underground passageways especially sewers; pipeline construction and maintenance; machinery installation, maintenance and repair.

Goods & Services

Pipes and tubing in this class; profile strips of plastics material for producing tubular liners for lining of passageways; and pipe liners of plastics material. Installation and laying of pipes; pipe rehabilitation services including relining of underground passageways especially sewers; pipeline construction and maintenance; machinery installation, maintenance and repair.

Goods & Services

PLASTIC PIPES FOR PLUMBING PURPOSES; PLASTIC IN STRIP FORM FOR USE IN FURTHER MANUFACTURE OF PLASTIC TUBING [ INSTALLATION, MAINTENANCE AND REPAIR OF PIPE CONDUIT AND OTHER TUBULAR INSTALLATIONS AND SEWAGE PIPELINE REHABILITATION SERVICES ]