| Patents for B29D 23 - Producing tubular articles (6,162) |
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| 06/18/1991 | US5024712 Process and machine for manufacturing tubular pieces from at least one web of supple material and tubular pieces thus obtained |
| 06/11/1991 | CA1284829C Indicator for dimensionally recoverable sleeves |
| 06/05/1991 | EP0430542A2 Method of producing flexible tube |
| 06/05/1991 | EP0430377A2 Dimensionally recoverable article |
| 06/05/1991 | CN1012721B Process and apparatus for manufacturing ribbed tube of plastics |
| 05/30/1991 | WO1991007281A1 Method of producing a cohesive finish on composite materials |
| 05/29/1991 | EP0428808A1 Method of manufacturing pipes of composite material of the fibres/resin type and tube obtained thereby |
| 05/28/1991 | US5019309 Method of and apparatus for producing a pipe of thermoplastic synthetic resin |
| 05/28/1991 | CA1284444C Reinforcing assembly having a form wire layer, and articles made with said assembly |
| 05/15/1991 | EP0427356A2 Wrap-around recoverable article |
| 05/15/1991 | EP0426703A1 Pressure-tube of vinylchloride plastic. |
| 05/08/1991 | EP0426234A2 Apparatus and method for the in-line cropping and/or chamfering of a plastic tube |
| 05/07/1991 | US5013894 Conductive polymeric article |
| 04/30/1991 | US5011562 Apparatus for forming sealed lengths of plastics coated tube |
| 04/24/1991 | EP0423849A2 Process to enwrap a piece of steel with a plastic layer |
| 04/23/1991 | US5009941 Tube or pipe formed a thermoplastic powder impregnated fiberglass roving |
| 04/17/1991 | EP0422281A1 A method of making flame resistent polyimide foam insulation and the resulting insulation |
| 04/09/1991 | CA1282650C Method of creating profiling projections on plastic-covered steel parts as wellas plastic-covered steel parts provided with profiling projections |
| 04/09/1991 | CA1282571C Method of and means for producing reinforced ribbed structures |
| 04/02/1991 | CA1282350C Composite tubular elements and methods of fabrication |
| 03/31/1991 | WO1991004845A1 Welding muff and process for manufacturing it |
| 03/31/1991 | CA2042367A1 Welding muff and process for manufacturing it |
| 03/27/1991 | EP0290429B1 Apparatus and method for the production of ribbed pipes |
| 03/26/1991 | US5002822 Composites to form a fabric to form pressure resistant splice case for telecommunication cables |
| 03/26/1991 | US5002478 Improvements in suction applying mold blocks in pipe forming apparatus |
| 03/21/1991 | DE3930528A1 Corrosion-resistant collapsible tubing - has extruded rubber section wound spirally to form lining with thermoplastic reinforcement wound and bonded into gaps between spiral turns |
| 03/19/1991 | US4999903 Process of manufacturing composite tube by rolling and welding without elongating the same |
| 03/19/1991 | CA1281664C Pressure-withstanding pipe and method of manufacturing the same |
| 03/12/1991 | WO1991003370A1 Flexible hose construction and method of making the same |
| 02/07/1991 | WO1991001220A1 Composite tubular article and its production method |
| 02/07/1991 | WO1991001213A1 Procedure and machinery for the production of an assembled object |
| 02/06/1991 | CN1011530B High-pressure hose and process for its production |
| 01/24/1991 | WO1991000803A1 Nested honeycomb structures and production method |
| 01/23/1991 | EP0409103A2 Method of covering a transmission cable with a thermoplastic layer |
| 01/23/1991 | EP0409021A2 Apparatus and method for producing tubular articles |
| 01/22/1991 | US4986863 Process for producing a laminated tubular fibrous structure for use as reinforcing structure for a composite piece |
| 01/15/1991 | US4984976 Mold for making annular polymeric articles |
| 01/13/1991 | WO1991000797A1 Apparatus for manufacturing ribbed pipes |
| 01/10/1991 | WO1991000466A1 Composite plastic pipe |
| 01/10/1991 | DE4020797A1 Oil-resistant rubber mixt. with good adhesion to brass - contg. acrylonitrile]-diene-olefin] copolymer rubber, tri:allyl isocyanurate], organic sulphur cpd. or sulphur donor, and organic peroxide |
| 01/08/1991 | US4983347 Method of producing an internally smooth, externally ribbed tube from extrudable plastic and apparatus for carrying out the method |
| 01/02/1991 | EP0404822A1 Manufacture of a tubular article |
| 12/27/1990 | EP0403686A1 Pipe, especially for a transverse shaft, expanding shaft or the like |
| 12/27/1990 | EP0403685A1 Process to produce a pipe section of an expandable shaft |
| 12/19/1990 | CN1047827A Electro-welding element of conductive plastic and electro-welding coupling including said element for interconnecting pieces made of plastic |
| 12/19/1990 | CN1047826A Electro-welding sleeve fabrication method, device for implementing it and sleeves obtained by the method |
| 12/19/1990 | CN1047825A Profiled sheathed wire intended in particular for forming electric resistance welding insert |
| 12/18/1990 | US4977931 Method of producing reinforced ribbed tubes |
| 12/15/1990 | CA2019032A1 Tubing |
| 12/15/1990 | CA2019031A1 Process for the manufacture of a perforated tube |
| 12/12/1990 | EP0402201A2 Wire with shaped coating, especially for making an electro-fusion insert |
| 12/12/1990 | EP0402200A2 Electro-fusion element of conductive plastics material and socket for electro-fusion of plastic parts made therewith |
| 12/12/1990 | EP0402199A2 Process and apparatus for making an electro-fuseble sleeve and sleeves made thereby |
| 12/11/1990 | US4976289 Corrugated pipe |
| 12/09/1990 | CA2018555A1 Profiled sheathed wire for forming into an electric resistance welding |
| 12/09/1990 | CA2018553A1 Electro-welding element made of conductive plastic material and electro-welding fitting for electro-welding element made of such material |
| 12/05/1990 | EP0400457A1 Production of barrel bodies |
| 11/29/1990 | WO1990014055A1 Longitudinally compliant vascular graft |
| 11/27/1990 | US4973503 Mixed fiber tow or tube and method of making |
| 11/07/1990 | EP0396273A2 Electro-fusion fittings |
| 11/06/1990 | CA1275773C Apparatus and a method for the protection of ribbed pipes |
| 10/24/1990 | EP0380543A4 Method of making a catheter or tube |
| 10/11/1990 | DE3911608A1 Pressurisable tubing - has layer of rubber with reinforcing fibres oriented along tube, and with outer fibre-free boundary layer(s) |
| 10/10/1990 | EP0391586A2 Method of producing a tapered vascular graft prothesis |
| 10/10/1990 | EP0390806A1 The improved method of creating inflatable products |
| 10/04/1990 | WO1990011468A1 Improvements relating to the lining of pipelines or passageways |
| 10/04/1990 | WO1990011175A1 Improvements relating to flexible tubular structures, methods of manufacturing same and pipes and pipe linings formed from said flexible tubular structures |
| 10/03/1990 | EP0390745A2 Multilayered pipe, especially hot water pipe |
| 09/26/1990 | EP0389307A1 Tyre inner tube, especially for a bicycle or motorcycle |
| 09/26/1990 | EP0388693A2 Method for fabricating hoses with a core of cross-linkable polyethylene |
| 09/25/1990 | US4958770 From ground rubber from vehicle tire treads and polyethylene binder |
| 09/18/1990 | US4957687 Method for making profiled plastic tubes such as corrugated tubes |
| 09/18/1990 | US4957669 Method for producing tubing useful as a tapered vascular graft prosthesis |
| 09/18/1990 | CA1274122A1 Manufacture of a composite tube |
| 09/13/1990 | DE3907785A1 Plastic pipe and process for its production |
| 09/11/1990 | US4956138 Method of manufacturing an electrofusion coupler |
| 09/11/1990 | US4955899 Longitudinally compliant vascular graft |
| 09/11/1990 | US4955411 Hose having index mark |
| 09/05/1990 | EP0384924A1 A process for producing a resin product having a bent hollow portion and a core usable for the same process |
| 09/04/1990 | US4954299 Structures of plastics material |
| 08/28/1990 | US4952262 Hose construction |
| 08/23/1990 | WO1990009272A1 Production of hollow article of fiber reinforced thermoplastic resin |
| 08/22/1990 | CN1009304B Insulating material pipe in the manufacture by method of filamentous winding |
| 08/22/1990 | CN1009303B Method and apparatus for making welded joint made of plastic |
| 08/21/1990 | US4950436 Enhanced by forming inner wall on a core of selected synthetic material |
| 08/08/1990 | EP0380841A2 Coated braided hose method and assembly |
| 08/08/1990 | EP0380686A1 Production method of rubber tube and resin coating apparatus used therefor |
| 08/08/1990 | EP0380543A1 Method of making a catheter or tube. |
| 08/01/1990 | EP0379727A2 Method and apparatus for manufacturing thin-walled hoses made of rubber and/or plastics blends |
| 08/01/1990 | EP0379637A2 Process for the production of a thermoplastic pipe having a spiral reinforcement |
| 07/27/1990 | CA2008794A1 Process and apparatus for the production of thin wall tubes from rubber - and/or plastic mixtures |
| 07/25/1990 | EP0378566A1 Mould for making a tubular body of fiber reinforced plastic material |
| 07/25/1990 | EP0259323B1 Hose for the irrigation of plants |
| 07/24/1990 | US4943405 Method and apparatus for manufacturing compression molded articles from thermoplastic material |
| 07/24/1990 | US4942904 Hollow section, in particular a tube, of long fibre reinforced plastic |
| 07/24/1990 | CA1271908A1 Heat weldable pipe fittings |
| 07/11/1990 | CN1043668A Air impermeable containers |
| 07/11/1990 | CN1008710B Apparatus for producing double-walled corrugated pipes |
| 07/10/1990 | US4940820 Wraparound recovery article |
| 07/04/1990 | EP0376638A2 A degassing tube for solvents |