| Patents for B29D 23 - Producing tubular articles (6,162) |
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| 12/16/1981 | EP0041567A1 Blow molding machine |
| 12/15/1981 | US4305983 Thin walled tubing formed of a melt spinnable synthetic polymer and process for the manufacturing thereof |
| 12/15/1981 | US4305703 Composite die assembly for use in the production of thermoplastic tubing |
| 12/01/1981 | US4303104 Double-wall plastic tubing in which the outer wall has transverse corrugations and the inner wall is smooth |
| 12/01/1981 | US4303102 Hose ending and method of forming same |
| 11/18/1981 | EP0039910A1 Process for extracting rubber and by-products from guayule and guayule-like shrubs |
| 11/18/1981 | EP0039769A1 New compounding formulas for rubber-metal adhesion (use of cobalt propionate) in tines |
| 11/17/1981 | US4300963 Method of manufacturing cylindrical tubes and apparatus for carrying out the method |
| 11/17/1981 | CA1112416A1 Method and apparatus for sealing an element to a cylindrical container sleeve |
| 11/17/1981 | CA1112415A1 Process to manufacture tubular articles resembling wood, cane, bamboo, reed grass, rattan, rush, junk and the like |
| 11/12/1981 | WO1981003146A1 Method for forming a tube article on a core |
| 11/03/1981 | US4298330 Curved mandrel for curing polymeric hose and method |
| 11/03/1981 | CA1111751A1 Plastic pipe |
| 10/28/1981 | EP0038555A1 Mold for molding a sleeve-equipped reinforced plastic tubular body, and method for handling the mold |
| 10/27/1981 | CA1111218A1 Modular die set for blow molding containers |
| 10/21/1981 | EP0038277A1 Machine for forming a tubular profile |
| 10/20/1981 | US4295322 Tube forming shoe and methods of forming a flexible web into a tube |
| 10/14/1981 | EP0037601A1 A heat-insulated hose for liquefied gases |
| 10/13/1981 | US4294636 Method and apparatus for making wire reinforced hose |
| 10/07/1981 | EP0036963A1 Welding socket for thermoplastic materials, method and apparatus for its manufacture |
| 10/06/1981 | CA1110024A1 Process for manufacturing synthetic resin hose having a reinforcing member embedded therein and apparatus thereof |
| 09/29/1981 | US4292113 From softened resin |
| 09/29/1981 | US4292101 High density precision walled, laminated |
| 09/29/1981 | US4292014 Feed mechanism comprising an endless member configured as a double helix |
| 09/29/1981 | CA1109779A1 Method of manufacturing cylindrical tubes and apparatus for carrying out the method |
| 09/23/1981 | EP0036184A2 Pipe building method and apparatus |
| 09/23/1981 | EP0035999A1 Assembly for extruding pipe |
| 09/22/1981 | CA1109221A1 Method and apparatus for manufacturing corrugated tubes |
| 09/15/1981 | US4289168 Method for making pipe of fabric impregnated with resin |
| 09/15/1981 | CA1109087A1 Plastic dust tube for shock absorber |
| 09/15/1981 | CA1108816A1 Method and apparatus for producing double-walled thermoplastic pipe |
| 09/08/1981 | US4288265 Process and apparatus for manufacturing radial tires |
| 09/08/1981 | CA1108518A1 Process and plant for producing hose in vulcanizable elastomeric material |
| 08/25/1981 | US4285472 Water dropping type irrigation pipe |
| 08/25/1981 | CA1107665A1 Crush resistant hose |
| 08/19/1981 | EP0033798A1 Method of manufacturing flexible hose |
| 08/18/1981 | US4284448 Heat shrinkage around forming tool, joining ends |
| 08/12/1981 | EP0033489A1 Machine for producing blown hollow plastic articles |
| 08/06/1981 | WO1981002135A1 Machine for the production of plastic blown hollow bodies |
| 08/06/1981 | WO1981002133A1 Apparatus for preparing a parison and transferring it to a molding machine |
| 08/04/1981 | US4282053 Tube forming apparatus and method |
| 07/28/1981 | US4280534 Plastics pipes having walls with lengthwise extending channels |
| 07/21/1981 | US4279285 Apparatus and method for forming a tube article on a core |
| 07/21/1981 | US4279245 Flexible tube |
| 07/21/1981 | CA1105224A1 Production of rubber tubing from latex |
| 07/15/1981 | EP0031917A2 Apparatus and method for fabricating a flexible cylinder from multi-ply flexible web material having metal and plastic plies |
| 06/25/1981 | WO1981001679A1 Blow molding machine |
| 06/23/1981 | US4274244 Method and apparatus for sealing polyester film in mine bolt capsule |
| 06/16/1981 | US4272971 Reinforced tubular structure |
| 06/09/1981 | US4272464 Polyurethanes, crosslinking |
| 06/09/1981 | CA1102738A1 Process of fabricating hollow bead rings |
| 06/02/1981 | CA1102078A1 Apparatus for manufacturing an article |
| 05/26/1981 | US4269640 Precision heat forming of tetrafluoroethylene tubing |
| 05/12/1981 | US4266579 Hose and method of making same |
| 05/12/1981 | CA1100731A1 Molded rubber article and method |
| 05/06/1981 | EP0028065A2 Apparatus for use in the manufacture of thermoplastics pipe by the radial expansion of a pipe blank within a circular cross-section mould |
| 05/05/1981 | CA1100399A1 Method of and device for fabricating plastic sleeves |
| 05/05/1981 | CA1100398A1 Process and apparatus for the production of a pipe- shaped hollow body especially of container tubes from a multilayer composite sheet material |
| 04/29/1981 | EP0027708A1 Thermoplastic reinforced hose |
| 04/29/1981 | EP0027677A1 A method of manufacture of packing containers and packing containers manufactured in accordance with the method |
| 04/28/1981 | CA1099868A1 Method of making endotracheal tube cuffs |
| 04/22/1981 | EP0027417A1 Process and apparatus for manufacturing non-deflatable inner tubes for vehicle wheels |
| 04/21/1981 | US4262719 Tire liner and method of preparation |
| 04/21/1981 | CA1099463A1 Microporous tubes and process for producing the same |
| 04/15/1981 | EP0027098A1 Method and device for making axially reinforced plastic pipes |
| 04/14/1981 | US4261482 For dentifrices, cosmetics, or foods |
| 04/14/1981 | CA1099206A1 Method and device for extracting very long cores from rubbery hose articles formed thereabout |
| 04/02/1981 | WO1981000823A1 Assembly for extruding pipe |
| 03/31/1981 | US4259139 Method and apparatus for producing a reinforced plastic pipe |
| 03/17/1981 | US4256523 Method for the manufacture of a pipe |
| 03/11/1981 | EP0024622A1 Process and apparatus for manufacturing a flat hose |
| 03/03/1981 | CA1096575A1 Process and apparatus for manufacturing reinforced elastomeric hoses |
| 02/24/1981 | CA1096285A1 Mandrel for fabricating an air spring |
| 02/17/1981 | US4250798 Method of and device for fabricating plastic sleeves |
| 02/10/1981 | US4250138 Process for producing microporous tubes of polytetrafluoroethylene |
| 02/10/1981 | US4249971 Process for making elastomeric hose |
| 01/20/1981 | US4245924 Arch conduit |
| 01/14/1981 | EP0022218A1 Elongate material spreading and tacking apparatus |
| 01/12/1981 | WO1981000079A1 Elongate material spreading and tacking apparatus and method |
| 01/07/1981 | EP0021255A1 Tire liner and method of preparation |
| 01/06/1981 | CA1093033A1 Collapsible dispensing tube |
| 01/06/1981 | CA1092765A1 Silicone rubber enclosure element and method of using |
| 12/30/1980 | US4242296 Vulcanization, shaping |
| 12/10/1980 | EP0020248A1 Apparatus for moulding cylindrical pieces |
| 12/09/1980 | US4238260 Method of making an elastomeric hose |
| 11/25/1980 | CA1090081A1 Marker buoy and method of manufacturing such a marker buoy |
| 11/25/1980 | CA1090080A1 Method and apparatus for making flexible corrugated rubber tubing and tubing produced thereby |
| 11/18/1980 | CA1089804A1 Molded collapsible solution container |
| 11/18/1980 | CA1089781A1 Reinforced flexible duct with integral molded liner and machine and methode for making |
| 11/18/1980 | CA1089614A1 Method and apparatus for producing tube |
| 11/04/1980 | US4231834 Process to manufacture tubular articles resembling wood, cane, bamboo, reed, wicker, rattan, rush, and the like |
| 11/04/1980 | CA1088881A1 Laminated tube for collapsible containers and method of making same |
| 10/21/1980 | US4229613 Mono-hose with electrical conductors and end connector means |
| 10/21/1980 | CA1087819A1 Apparatus and method for forming a tube article on a core |
| 10/15/1980 | EP0016817A1 An oriented, semi-crystalline polymer product and method and apparatus for producing such product. |
| 10/07/1980 | US4226652 Method and apparatus for joining a sealing element to a cylindrical container sleeve |
| 10/07/1980 | US4226580 Apparatus for producing thermoplastic tubing |
| 10/07/1980 | US4226337 Laminated tube for collapsible containers and method of making same |
| 10/01/1980 | EP0016101A1 Method for obtaining a one piece cast hollow body by blowing |
| 10/01/1980 | EP0015998A1 Process and device for welding sleeves. |