Patents for B29L 23 - Tubular articles (4,866)
02/1994
02/09/1994EP0581861A1 Method for producing heat-recoverable articles and apparatus for expanding/shrinking articles
01/1994
01/12/1994EP0577651A1 Pipe couplings
01/05/1994EP0576431A1 Extrusion die.
12/1993
12/28/1993CA1325584C Method and apparatus for the lining of existing pipes
12/27/1993CA2097742A1 Total containment welding of plastic tubes
12/23/1993WO1993025373A1 Multi-cavity travelling mold tunnel for molding profiled pipe and mold block tunnels
12/21/1993US5271976 Biaxially stretched multilayer film and process for manufacturing same
12/15/1993CN1023092C Improvements in suction applying molded blocks in pipe forming apparatus
12/14/1993CA1325131C Liquid smoke impregnated shirred casing stick and method of producing same
12/09/1993WO1993024299A1 Tubular laminate and production thereof
12/08/1993EP0572546A1 System and method for joining plastic materials
12/01/1993EP0571978A1 Heater element for a tube connecting device
11/1993
11/30/1993CA1324824C Heat fusion pipe fitting system
11/25/1993WO1993023234A1 Vacuum advance system for high speed contact sealer for forming a flat film into a tube
11/25/1993WO1993023233A1 Apparatus for adjustment of the spacing of film drive assemblies in a tubular film forming device
11/16/1993US5262119 Plastic system for injection molding and extruding a hollow tube for forming a plastic container by blowing
11/16/1993US5262109 Method and apparatus for forming multilaminate film
11/11/1993WO1993022126A1 A welding method in the manufacture of a spirally wound tube and a welding head for performing the method
11/10/1993EP0568823A1 A method and equipment for forming a composite synthetic resin material
11/03/1993EP0567926A1 Plastic system for injection molding and extruding a hollow tube for forming a plastic container by blowing
10/1993
10/28/1993CA2094760A1 Plastic system for injection molding and extruding a hollow tube for forming a plastic container by blowing
10/26/1993US5256845 Apparatus for sealing medical plastic tubing with high frequency dielectric heating
10/26/1993US5256229 Sterile containment welding device for plastic tubes
10/26/1993US5255943 Welding sleeve and method for its manufacture
10/20/1993EP0411055B1 Bonded article
10/19/1993US5254824 Method and article for microwave bonding of polyethylene pipe
10/13/1993CN1077160A Method and apparatus for the continuous manufacture of a compounds pipe with a pipe socket
10/12/1993US5252268 Method of controlling extrusion of multilayer parison
10/06/1993EP0563721A1 A method and apparatus for the orientation of a plastic pipe and an oriented ribbed plastic pipe
10/06/1993EP0563575A2 Method and apparatus for continuous production of a composite pipe with sleeve
10/06/1993EP0563375A1 Process and plant for manufacturing reinforced duroplastic tubes by centrifugal casting.
10/06/1993EP0563374A1 Dual surface heaters
10/05/1993CA1322643C Extended semi-cristallin plastic tubing with thermally enhanced cold impact and traction strength, and fabrication process thereof
09/1993
09/29/1993EP0562706A2 Method of lining a pipe
09/29/1993EP0491720B1 Modular corrugator
09/21/1993US5246534 Apparatus for end face welding of plastic parts
09/14/1993US5244625 Method for manufacturing a polymeric cage
09/14/1993US5244522 Total containment welding of plastic tubes
09/08/1993EP0291515B1 Radio frequency method of sealing an article
09/07/1993US5242517 Pipe liner and a method for manufacturing same
09/01/1993EP0498819B1 Apparatus for making plastic tubing including mold blocks hingeably openable and closeable
08/1993
08/31/1993CA1321698C Heat recoverable article
08/31/1993CA1321693C Metal mold for injection molding tubular or columnar products and molded product obtained by using same
08/24/1993US5238615 Method for joining together of tubular plastic products
08/18/1993EP0555684A1 Welding socket and method for its manufacture
08/17/1993US5236656 Method of injection blow molding synthetic resin bellows product
08/04/1993EP0553558A1 Method for lining a pipeline
07/1993
07/28/1993EP0552882A1 Flat boat and framework for supporting canvas
07/28/1993EP0552598A2 Apparatus for sealing medical plastic tubing
07/28/1993EP0552212A1 A method and an apparatus for producing a container.
07/28/1993EP0328600B1 Corrugated pipe connector
07/28/1993CN1074742A A method for combustion of hydrocarbons
07/27/1993US5231267 Method for producing heat-recoverable articles and apparatus for expanding/shrinking articles
07/24/1993CA2087213A1 Flat boat and framework for supporting canvas
07/14/1993CN1074286A Method and article for microwave bonding for polythylene pipe
06/1993
06/30/1993EP0548417A1 Method for manufacturing a pipe liner.
06/24/1993WO1993012205A1 A method for combustion of hydrocarbons
06/22/1993CA1319241C Conductive polymer composition
06/10/1993WO1993010962A1 Method and article for microwave bonding of polyethylene pipe
06/09/1993EP0544697A1 Method and device for winding one or more layers of strip material around a tubular element.
05/1993
05/26/1993CN1020873C Plastic coated steel tube and making method thereof
05/25/1993CA1318095C Injection molding machine
05/19/1993EP0542732A2 Pipelines
05/19/1993EP0542731A2 Method of lining a pipe
05/19/1993EP0542272A1 Spiral fed multi-layer tubular die
05/19/1993EP0541931A1 Apparatus for butt-welding synthetic parts
05/18/1993US5211798 Apparatus for the production of tubes
05/06/1993DE4136349A1 Appts. for welding plastic tubes together - prevents formation of internal weld beads, and has metal heating ring and plate holding, e.g. PTFE, ring fitting into one tube
05/04/1993US5208048 Extrusion head for tubular strands of thermoplastified synthetic resin material
05/04/1993US5207960 Sintering, rolling, elongation, extraction
04/1993
04/29/1993WO1993008012A1 Article and method for bonding to an elongate object
04/29/1993CA2116784A1 Article and method for bonding to an elongate object
04/27/1993CA1316962C Methods of manufacturing tube coupling bodies
04/24/1993WO1993008668A1 Dual surface heaters
04/24/1993WO1993008009A1 Process and plant for manufacturing reinforced duroplastic tubes by centrifugal casting
04/20/1993US5204039 Using die and flow path with specific dimensions and angle of inclination
04/20/1993US5203937 Manufacture of a reinforced tubular article
04/20/1993US5203760 Apparatus for adjustment of the spacing of film drive assemblies in a tubular film forming device
04/15/1993WO1993006986A1 Loop machine for helically winding strip
04/14/1993EP0366667B1 Process for manufacturing a cock consisting of a plug and a housing for medical equipment
04/07/1993EP0535454A2 Apparatus for welding plastic parts
04/07/1993EP0535254A1 Apparatus for making a preform for blowmoulding bellows
04/07/1993EP0535247A1 Pipe joint member
04/07/1993EP0425656B1 Apparatus for forming endless loops from sheet material
04/06/1993US5200124 Method and apparatus for shaping thermoplastic tubes
04/06/1993US5200018 Ribbonizing apparatus for individually heating a plurality of laterally adjacent tows in a fiber placement device
04/06/1993US5200011 Non-digging tube reverse lining engineering method of conduit
03/1993
03/31/1993CN1070362A Method for welding together pipes consisting of thermoplastic plastics
03/23/1993US5196208 Apparatus for removing cylindrical moldings from molds
03/23/1993US5196079 Method and apparatus for joining thermoplastic workpieces by high frequency vibrations
03/23/1993CA1314826C Stretch blow-molded polyethylene terephthalate wide mouth container and intermediate article
03/23/1993CA1314678C Method and apparatus for producing a finned tube from synthetic plastics material
03/18/1993WO1993005332A1 Pipe joint and process for producing pipe joints made of polyolefin
03/18/1993CA2116561A1 Pipe joint and process for producing pipe joints made of polyolefin
03/17/1993EP0531750A2 Process for welding thermoplastic pipes
03/16/1993US5194471 Rigid chlorinated polyvinyl chloride compound and articles derived therefrom
03/10/1993EP0530549A1 At least three-layered coextruded, biaxially stretched tubular film with an inner layer of PA
03/10/1993EP0530387A1 Pipeline connection and method of manufacturing pipeline connections made of polyolefine
03/02/1993US5191486 Cfrp-made optical cylinder
03/02/1993CA1313929C Method for fastening soft porous tubes
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