| Patents for B29C 53 - Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor (13,374) |
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| 08/08/1991 | DE4003637A1 Moulding curved e.g. poly:methacryl:imide foam - using flat sheet of rigid foam by covering with glass cloth and thicker similar foam, thermo-forming, cooling and removing ancillary layers |
| 08/07/1991 | EP0439972A1 Mould core |
| 08/07/1991 | CN1013456B Apparatus for winding insulation ply |
| 08/06/1991 | US5037691 Reinforced plastic laminates for use in the production of printed circuit boards and process for making such laminates and resulting products |
| 07/31/1991 | EP0438792A2 Method and apparatus for fabricating unidirectional materials for helicopter parts |
| 07/31/1991 | EP0438745A1 Flexible corrosion-resistant conduit and method |
| 07/30/1991 | US5035685 Recovery device and procedure for extracting a sheath after it has been folded transversely |
| 07/25/1991 | WO1991011012A1 Flexible synthetic plastic conduit |
| 07/23/1991 | US5034080 Method of making a laminated tubular body |
| 07/23/1991 | US5033925 Composite nut and bolt |
| 07/23/1991 | CA1286581C Process and apparatus for installing a new pipe inside an existing pipe |
| 07/23/1991 | CA1286580C Apparatus for continuous welding or sealing of seams of plastic films |
| 07/23/1991 | CA1286468C Method of preventing expansion-induced wrinkles of plastic film and metal foil |
| 07/18/1991 | DE4001068A1 Large dia. heat-shrink tubing - produced by extruding polyolefin film, stretching, cutting, joining cut edges together to form tubing, and crosslinking prod. |
| 07/17/1991 | EP0437121A2 Filter-catheter combination |
| 07/17/1991 | EP0436552A1 A method and apparatus for producing flexible tubes of any length |
| 07/17/1991 | EP0391927B1 Process for manufacturing sheet cuts-out for folding boxes with angular windows, boxes obtained and corresponding device |
| 07/16/1991 | US5032443 Method of making an article from a thermoplastic sandwich material |
| 07/16/1991 | US5032200 Method of forming a baby shower display device |
| 07/16/1991 | US5032199 Glass fiber, silicone rubber |
| 07/16/1991 | US5032016 Radiation gathering reflector and method of manufacture |
| 07/16/1991 | US5031846 Filament winding machine |
| 07/11/1991 | WO1991009785A1 Tamper evident caps and methods for producing such caps |
| 07/11/1991 | CA2072365A1 Tamper evident caps and methods for producing such caps |
| 07/10/1991 | EP0436478A1 Improved double-fold construction for a contact body element |
| 07/10/1991 | EP0436415A1 Method for shaping convex inextensible profiles made of composite material |
| 07/10/1991 | EP0436236A1 Equipment for folding and joining boxes made from flat or basically flat materials |
| 07/10/1991 | CN1052926A Wrapping process for shaping jet tube joint basement of roclcet engine shell made up by wrapping fibre |
| 07/09/1991 | US5030083 Apparatus for manufacturing a hollow synthetic resin product |
| 07/09/1991 | US5029725 Molded plastic material container |
| 07/06/1991 | CA2033616A1 Equipment for folding and joining boxes made from flat or basically flat materials |
| 07/03/1991 | EP0435042A2 Method for thermoplastics postforming |
| 07/03/1991 | EP0434835A1 Method of inserting rigid plastic lining tube into conduit |
| 07/02/1991 | US5028056 Fiber composite sealing element |
| 07/02/1991 | CA1285431C Seamless foldable boat |
| 06/27/1991 | DE3942308A1 Thermoplastic engine intake pipes etc. - produced by injection moulding e.g. straight pipes for easy demoulding and then hot forming them into bends required |
| 06/26/1991 | EP0434497A1 Filament winding method for making an annular hollow body with internal webs |
| 06/26/1991 | EP0434496A1 Device for preserving the planarity of a cardboard band between two successive elements of a winding machine |
| 06/26/1991 | EP0433843A2 Hollow shaft and method for its manufacture |
| 06/26/1991 | EP0433686A1 Fibre-reinforced plastics pipe with threaded end joint section |
| 06/25/1991 | US5026514 Incremental forming of thermoplastic composites |
| 06/25/1991 | US5025943 Pressure vessel having a filamentary wound structure |
| 06/25/1991 | CA1285241C Tamper-evident closure |
| 06/19/1991 | WO1991008885A1 Method and apparatus for forming thick complex shaped composites |
| 06/19/1991 | CN1012890B Thermobox for transportation of fresh goods, such as fish, meat, medicines etc. |
| 06/19/1991 | CA2045170A1 Method and apparatus for forming thick complex shaped composites |
| 06/19/1991 | CA2031798A1 Process and apparatus for forming the edge of containers of synthetic thermoplastic material |
| 06/18/1991 | US5025137 Thermoplastic heating apparatus |
| 06/18/1991 | US5024712 Process and machine for manufacturing tubular pieces from at least one web of supple material and tubular pieces thus obtained |
| 06/18/1991 | CA1284864C Apparatus for gauge distribution in plastic tubing |
| 06/13/1991 | DE4002984C1 Mfg. soft material compensators - by heating until plastification occurs, stretching and cooling |
| 06/12/1991 | EP0431669A1 Method of making an article from a thermoplastic sandwich material |
| 06/11/1991 | US5022952 Fiber placement machine |
| 06/11/1991 | US5022845 Shaping fiber containing body |
| 06/11/1991 | US5022844 Apparatus for forming foldable plastic products |
| 06/08/1991 | WO1991008892A1 A composite material |
| 06/08/1991 | CA2070830A1 Composite material |
| 06/06/1991 | DE3939352A1 Bending tool for thermoplastic tubes - consists of heated block made up of lengths with suitably shaped groove which is narrower along its mouth so that tube snap-fits into it |
| 06/05/1991 | EP0429805A2 Method and device for making pleated filter inserts |
| 06/05/1991 | EP0429513A1 Process and apparatus for heat forming of materials |
| 06/05/1991 | CN1012721B Process and apparatus for manufacturing ribbed tube of plastics |
| 06/04/1991 | US5020985 Laminate bending device |
| 06/04/1991 | CA1284569C Ribbon of a cross-linked plastic which is capable of shrinking upon the action of heat |
| 05/30/1991 | WO1991007281A1 Method of producing a cohesive finish on composite materials |
| 05/30/1991 | WO1991007139A1 Producing prostheses |
| 05/29/1991 | EP0428808A1 Method of manufacturing pipes of composite material of the fibres/resin type and tube obtained thereby |
| 05/29/1991 | CA2030316A1 One-piece tape reel |
| 05/28/1991 | US5019435 Composite reinforcement elements woven in three dimensions |
| 05/28/1991 | US5019024 Tensioning and gluing methods and apparatus for tube winding machines |
| 05/28/1991 | CA2030667A1 Process and apparatus for manufacturing a pleated filter insert |
| 05/23/1991 | DE3938675A1 Spiral winding of tube or similar cylinders - in which rectangular thermoplastic strip is spirally wound along mandrel with high overlap which causes inclination |
| 05/22/1991 | EP0428456A1 Method for manufacturing composite tubes from fabric and resin |
| 05/22/1991 | EP0427886A1 Die for negative angle forming |
| 05/21/1991 | US5016516 Fiber reinforced resin preform |
| 05/21/1991 | CA1284269C Method of fabricating flexible curtains of any size, and apparatus for implementing the method |
| 05/16/1991 | WO1991006698A1 Method of insulated article construction |
| 05/15/1991 | EP0427383A2 Sealing strips and methods of making them |
| 05/15/1991 | EP0426975A2 Flattening and haul-off apparatus for the blow moulding of a plastic tubular film |
| 05/15/1991 | CN1051305A Multilaminate coiled film catheter construction |
| 05/08/1991 | EP0426065A2 Bending machine |
| 05/08/1991 | EP0425724A1 Bending machine |
| 05/08/1991 | EP0425656A1 Apparatus for forming endless loops from sheet material. |
| 05/08/1991 | EP0216766B1 A permanent conforming pipe for conducting fluids and the like and method for producing the same |
| 05/07/1991 | US5013878 Induction heat sealing lap-seamed containers to non-metallic closures |
| 05/07/1991 | US5013234 Off-drawing apparatus for tubular webs of plastic film |
| 05/07/1991 | US5012950 Pressurized, hot water heaters |
| 05/07/1991 | CA2029195A1 Apparatus for flattening and taking off a plastic tubular film made by a blowmolding process |
| 05/07/1991 | CA1283844C Sealing method and apparatus for high capacity aseptic form, fill and seal machines |
| 05/02/1991 | EP0425083A2 Method of making a sealing strip. |
| 04/30/1991 | CA1283590C Process and apparatus for preparing a flat-topped wave-board panel |
| 04/30/1991 | CA1283518C Apparatus for manufacturing resin tube |
| 04/24/1991 | EP0424312A1 Flexible laminate |
| 04/24/1991 | EP0424151A2 A method of and an apparatus for producing an optical multi-fibre cable element |
| 04/24/1991 | EP0423954A1 Thermoplastic matrix filament winding head |
| 04/24/1991 | EP0423915A2 Method of manufacturing (partially) annular elements |
| 04/24/1991 | CN1050932A Method of and an apparatus for producing an optical multi-fibre cable element |
| 04/23/1991 | US5010440 Pipe liner having electrically conductive wires for hardening and electrostatic build-up prevention |
| 04/23/1991 | US5009941 Tube or pipe formed a thermoplastic powder impregnated fiberglass roving |
| 04/23/1991 | CA1283371C Pressure vessel with an improved sidewall structure |
| 04/20/1991 | CA2001082A1 Method of overwrapping an article with a thermosetting resin |