| Patents for B29L 23 - Tubular articles (4,866) |
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| 02/16/1993 | US5186987 Flexible moldable composite tube containing layers of film, fabric and high tensile strength mat impregnated with thermohardenable resin, for sewage pipes |
| 02/04/1993 | WO1993002316A1 Method of joining pipes and pipe joint |
| 02/03/1993 | EP0368974B1 Process for producing silicon caoutchouc tube membranes with mechanical wall reinforcement, development of tube membranes with mechanical wall reinforcement and their use |
| 01/20/1993 | EP0523749A1 Stretch blow-molded polyethylene terephthalate wide mouth container and intermediate article |
| 01/19/1993 | CA1312717C Cooling plugs in thermoplastic pipe forming apparatus |
| 01/19/1993 | CA1312716C Pipe liner process and apparatus |
| 01/07/1993 | EP0521041A1 Pipeline and passageway lining materials. |
| 12/30/1992 | EP0520473A1 Multi-layered foam heat-shrinkable tube |
| 12/23/1992 | WO1992022419A1 A method for joining spirally wound thermoplastic pipes together |
| 12/23/1992 | WO1992022417A1 Extrusion die with interchangeable extrusion nozzles |
| 12/22/1992 | CA1311590C Apparatus and method for extruding and expanding polytetrafluoroethylene tubing and the products produced thereby |
| 12/16/1992 | EP0518521A2 A liner assembly for lining branch pipes and a method for manufacturing the liner assembly |
| 12/16/1992 | EP0518032A1 Heat-shrinkable foam tube and method of manufacture |
| 12/15/1992 | CA1311339C Directed flow die assembly |
| 12/02/1992 | EP0515811A2 Sterile welding of plastic tubes |
| 12/01/1992 | US5167890 Monoaxially stretched shaped article of polytetrafluoroethylene and process for producing the same |
| 12/01/1992 | CA2063169A1 Sterile welding of plastic tubes |
| 11/19/1992 | EP0513020A1 Fuel-injection nozzle with an overflow-oil line. |
| 11/17/1992 | US5164204 Modular corrugator |
| 11/17/1992 | CA1310283C Corrugated pipe connector |
| 11/12/1992 | WO1992020198A1 Method for producing heat-recoverable articles and apparatus for expanding/shrinking articles |
| 11/12/1992 | WO1992019437A1 A method for manufacturing dental aspirators |
| 11/10/1992 | US5162090 Method of molding tubular parts and apparatus for practicing the same |
| 11/03/1992 | US5160476 Method for producing a resin pipe for use as the inner lining of existing pipes |
| 10/31/1992 | WO1992019438A1 A method for manufacturing a joint pipe |
| 10/29/1992 | WO1992018322A1 Pipe joint member |
| 10/29/1992 | CA2085886A1 Pipe joint member |
| 10/28/1992 | EP0510310A2 Rigid chlorinated polyvinyl chloride compound and articles derived therefrom |
| 10/21/1992 | EP0509216A2 Device for the manufacturing of plastic tubes |
| 10/20/1992 | US5156701 Total containment welding of plastic tubes |
| 10/15/1992 | WO1992017328A1 Pipe couplings |
| 10/14/1992 | EP0508373A2 Total containment welding of plastic tubes |
| 10/14/1992 | EP0508071A1 Apparatus for producing plastic pipes |
| 10/13/1992 | US5154936 Apparatus for everting a tube |
| 10/13/1992 | CA1308530C Procedure for manufacturing pipes and sections out of thermoplastic plastics |
| 10/07/1992 | EP0507220A2 CFRP-made optical cylinder |
| 10/01/1992 | WO1992016784A1 Method and apparatus of lining a passageway |
| 09/29/1992 | US5150930 Corrugated pipe connector and method of molding |
| 09/08/1992 | CA1307213C Plastic coated steel tube |
| 09/03/1992 | WO1992014961A1 A method and a device for feeding a flexible lining material |
| 09/03/1992 | WO1992014606A1 Laminate |
| 08/25/1992 | US5141580 Fusion of thermoplastic pipes by electrical resistance heater covered by dielectric which melts at critical temperature and causes short circuit which interrupts electricity |
| 08/21/1992 | WO1992015182A1 System and method for joining plastic materials |
| 08/19/1992 | EP0498819A1 Apparatus for making plastic tubing including mold blocks hingeably openable and closeable. |
| 08/12/1992 | EP0498764A1 Apparatus for producing tubular articles |
| 08/06/1992 | WO1992012840A1 Extrusion die |
| 08/05/1992 | EP0378625B1 Device for welding tubular plastic elements |
| 07/29/1992 | EP0496694A2 Method and apparatus for joining thermoplastic workpieces by high frequency vibrations |
| 07/15/1992 | EP0494138A1 Process for manufacturing plastic parts, in particular pipes, and diluted mixture for implementing the process. |
| 07/14/1992 | US5130630 Mandrel-moving control circuit, and method |
| 07/14/1992 | US5129979 Seamless rod, fabric, hot melt adhesive |
| 07/14/1992 | US5129810 Mold ejecting apparatus for cylindrical molding |
| 07/01/1992 | EP0492297A1 Extrusion head for sheathing elongated articles |
| 07/01/1992 | EP0491720A1 Modular corrugator. |
| 06/24/1992 | EP0491356A1 Ribbonizing method and apparatus |
| 06/24/1992 | EP0491353A1 Multiple axes fiber placement machine |
| 06/24/1992 | CN1017131B 广口容器 Wide-mouth container |
| 06/23/1992 | CA1303807C Process and apparatus for the production of an extruded, stretched, seamless tube |
| 06/16/1992 | CA1303518C Plastic tube with solid cross-ribs on the outer surface, a mouldingdevice therefor; installation comprising such a device and a method for moulding a plastic tube |
| 06/16/1992 | CA1303315C Apparatus for producing pipe with annular ribs |
| 06/10/1992 | EP0489534A1 Extrusion method and extruder for obtaining phenolic resin pipe |
| 05/27/1992 | EP0486502A1 Apparatus for manufacturing ribbed pipes. |
| 05/27/1992 | CN1061373A Improved method and apparatus for shaping thermoplastic tubes |
| 05/20/1992 | EP0486237A1 Improved method and apparatus for shaping thermoplastic tubes |
| 05/19/1992 | US5114511 Manufacture of a tubular article using flexible carrier |
| 05/13/1992 | EP0352255B1 A method and an apparatus for the production of ribbed pipes |
| 05/06/1992 | EP0483980A1 Variable diameter hollow extruded articles and method of manufacture |
| 05/01/1992 | CA2051577A1 Variable diameter hollow extruded articles and method of manufacture |
| 04/29/1992 | EP0482082A1 Composite sintered polymeric material. |
| 04/29/1992 | CN1016407B Method and apparatus deforming reformable tubular pipe liners |
| 04/28/1992 | CA1299525C Radio frequency method of sealing an article |
| 04/22/1992 | CN1016378B 连接器 Connector |
| 04/21/1992 | US5107098 Profiled sheathed wire for forming into an electric resistance welding insert |
| 04/21/1992 | US5106442 Method for producing collar reinforcements on cylindrical composite fiber bodies |
| 04/16/1992 | WO1992005943A1 A method and an apparatus for producing a container |
| 04/14/1992 | US5104472 Method of blow molding a parison against an insert having a groove filled with adhesive |
| 04/08/1992 | EP0479488A2 Method of injection blow molding synthetic resin bellows product |
| 04/07/1992 | CA1298450C Suction applying molded blocks in pipe forming apparatus |
| 04/06/1992 | WO1992005944A1 Apparatus for everting a tube and method of using same |
| 04/01/1992 | EP0477944A2 Heat-shrinkable tube |
| 03/25/1992 | EP0477081A2 Method for producing a resin pipe for use as the inner lining of existing pipes |
| 03/25/1992 | EP0476098A1 Process for manufacturing a tube with a multilayer tube head and tube consisting of a pipe body made of at least one layer of plastic and a multilayer tube head. |
| 03/24/1992 | CA1297649C Method and an apparatus for the production of pipes |
| 03/17/1992 | US5096646 Process for producing rubber tube and resin coating device used therein |
| 03/17/1992 | US5096634 Method of operating an apparatus for the production of biaxially stretched plastic tubes |
| 03/11/1992 | EP0473769A1 Device for manufacturing tubes. |
| 03/04/1992 | EP0472582A1 Welding of plastic pipe elements. |
| 03/03/1992 | US5093546 Method of connecting plastic tubes using high frequency dielectric heating |
| 02/25/1992 | US5091230 Tube of composite material with a fibrous thermoplastic coating and process for manufacturing such a tube |
| 02/06/1992 | WO1992001550A1 Method and device for winding one or more layers of strip material around a tubular element |
| 02/04/1992 | US5085036 High speed contact sealer |
| 01/29/1992 | EP0468261A2 Coextrusion apparatus and method for varying the inner profile of a tubular extrudate |
| 01/08/1992 | EP0465391A1 Process for making pleats on a film or a plastic tube, specially for manufacturing tubes and tubes so obtained |
| 01/07/1992 | CA2046062A1 Process of folding a tubular plastic sheet or article, particularly a tube, and tube therefrom |
| 12/04/1991 | EP0459907A1 Method for manufacturing thin-walled tubes of fluorinated resin, particularly polytetrafluoroethylene |
| 11/28/1991 | WO1991015350A3 Process for manufacturing a tube with a multilayer tube head and tube consisting of a pipe body made of at least one layer of plastic and a multilayer tube head |
| 11/28/1991 | WO1991015349A3 Device for manufacturing tubes |
| 11/21/1991 | EP0457561A2 Method and apparatus for making a laminated tubular body |
| 11/12/1991 | US5064491 Processes for the manufacture of curved reinforcing elements |
| 11/05/1991 | US5062914 Method for affixing a metallic tip to a tube made of composite wound material |