| Patents for F16L 9 - Rigid pipes (18,006) |
|---|
| 12/25/1979 | CA1068621A Thermoplastic multi-walled pipes and a process and apparatus for producing the same |
| 12/11/1979 | CA1067928A1 Oval sewerpipe with internal or end surface alignment marks |
| 12/04/1979 | US4177334 Microporous tubes |
| 12/04/1979 | CA1067429A1 Plastics pipes |
| 12/04/1979 | CA1067428A1 Sealed lay-in conduit duct |
| 12/04/1979 | CA1067427A1 Gas feeder pipe assembly including electrical conductors |
| 12/04/1979 | CA1067354A1 Boiler tube coating and method for applying the same |
| 11/28/1979 | EP0005440A1 Filament-reinforced plastic article and its method of manufacture |
| 11/15/1979 | WO1979000921A1 Tunnel lining,segment therefore and method of lining a tunnel |
| 11/13/1979 | US4174243 Method and apparatus for wiping resin from filament wound pipe |
| 11/06/1979 | CA1065776A1 Corrugated pipe |
| 10/30/1979 | US4172916 Corrugated boxboard; by applying core material with ferrous metal particles; stress resistance |
| 10/23/1979 | US4171626 Carbon fiber reinforced composite drive shaft |
| 10/23/1979 | US4171599 Fold structure for connecting metal sheet sections |
| 10/23/1979 | CA1064779A1 Coating of inorganic multicellular particles in bonding material on plastic pipe |
| 10/17/1979 | EP0004576A1 Flat-walled conduit of sheet metal plates for conducting exhaust gases from large internal combustion engines or gas turbines |
| 10/16/1979 | US4171238 Method of making reinforced plastic composite structure |
| 09/25/1979 | CA1063045A1 Ribbed tubular structure and method of making same |
| 09/18/1979 | US4167953 Reinforced tube of plastic and a method of manufacturing the same |
| 09/04/1979 | CA1061726A1 Double-walled corrugated plastic tubes |
| 08/28/1979 | US4165765 Glass fiber reinforced thermosetting resin pipe wall construction |
| 08/22/1979 | EP0003641A1 Method and apparatus for producing a composite pipe |
| 08/14/1979 | US4164243 Welded joint in segmented sheath for compressed gas insulated transmission lines |
| 07/31/1979 | US4162758 Method for producing clad steel pipes |
| 07/17/1979 | US4161510 Reforming furnace having ceramic-coated tubes |
| 07/17/1979 | US4161194 Reinforced smooth flow pipe |
| 06/19/1979 | CA1056610A1 Flexible multilayer tubular structure for irrigation and process for its preparation |
| 06/13/1979 | EP0002385A1 Double-walled fluid pressure line |
| 06/13/1979 | EP0002384A1 Fluid pressure line |
| 06/13/1979 | EP0002294A1 A plastics well pipe |
| 06/05/1979 | US4157194 Thermoplastic multi-walled pipes |
| 05/31/1979 | WO1979000286A1 Packless silencer |
| 05/29/1979 | CA1055212A1 Clay tile pipe joint seal containing foamed unsaturated polyester resin |
| 05/22/1979 | CA1054958A1 Corrugated flexible metal tubing and method and apparatus for making same |
| 05/08/1979 | US4153398 Apparatus for producing cast-in-place pipe employing permanent pipe mold |
| 05/08/1979 | US4153079 Flexible hose lines |
| 05/08/1979 | CA1053865A1 Welded pfa-to-ptfe structures and method of fabrication |
| 05/01/1979 | CA1053590A1 Separator for concrete wrapping to submarine pipelines |
| 05/01/1979 | CA1053427A1 Device for producing gilled pipes of plastic or some other material |
| 04/24/1979 | US4150910 Construction of underground galleries |
| 04/24/1979 | CA1053175A1 Combined strengthening and corrosion protection of pipelines |
| 04/24/1979 | CA1053163A1 Pipe and a method for its manufacture |
| 04/18/1979 | EP0001482A1 Thermoplastics pipes provided with integral sockets and/or spigots |
| 04/17/1979 | US4149568 Double walled fuel line |
| 04/03/1979 | US4147454 Method of and apparatus for construction of pipes for marine use, as for ocean mining and the like |
| 03/21/1979 | EP0001110A2 Use of a soot concentrate based on an ethylene copolymer for the manufacture of shaped polyethylene bodies for tubes |
| 03/20/1979 | US4145387 Method of manufacturing double-wall plastic tubing in which the outer wall has transverse corrugations and the inner wall is smooth |
| 03/20/1979 | US4144632 Method of making tubular article |
| 03/13/1979 | US4144125 Rupture protection device for hollow cylindrical members such as pipes, and particularly for pipes of nuclear reactors carrying primary coolant |
| 03/13/1979 | US4144111 Method for manufacturing a resistant plastic pipe |
| 03/06/1979 | US4142556 Refractory lining tuyere for metallurgical furnace |
| 03/06/1979 | CA1049898A1 Strip for reinforcing a pipe coating |
| 02/22/1979 | WO1979000079A1 Blank for pipe manufacture |
| 02/21/1979 | EP0000734A1 Method for making rods or tubes having a constant profile of fibre reinforced material |
| 02/20/1979 | CA1048872A1 Removing coatings from pipe |
| 02/13/1979 | US4139159 Flexible multilayer tubular structure for irrigation and process for its preparation |
| 02/13/1979 | US4139025 Glass fiber reinforced pipe |
| 02/07/1979 | EP0000576A1 Method of lining a passageway |
| 02/06/1979 | US4137949 Carbon fiber cloth, binder, heat shrinkable plastic |
| 02/06/1979 | CA1047950A1 Reinforced tube of plastic and a method of manufacturing the same |
| 01/16/1979 | US4134782 Method for simultaneously applying to an extended cylindrical object a coating and a plastic film wrapping to retain the coating |
| 01/16/1979 | US4134430 High pressure fuel injection pipe |
| 01/16/1979 | CA1046589A1 Method for removing brittleness and stresses from welded steel pipes |
| 01/09/1979 | US4133472 Method of shipping and assembling rectangular structural unit |
| 01/09/1979 | CA1045992A1 Plastic pipe having walls with lengthwise extending channels |
| 01/02/1979 | US4132577 Process for producing hollow profiled structures, and structures produced thereby |
| 12/26/1978 | CA1045057A1 Pipeline provided with a crack/buckle arrester combined with an anode |
| 12/19/1978 | US4130451 Process for the manufacture of filament wound pipe using deformable material at the wind stops |
| 12/19/1978 | CA1044619A1 Protective wrapper for coated conduit |
| 12/12/1978 | US4129152 Double wall helical pipe and strip configuration for forming same |
| 12/12/1978 | CA1044163A1 High pressure fuel injection pipe and a method of making the same |
| 12/05/1978 | CA1043718A1 Method and fabric for making reinforcing cages |
| 10/31/1978 | CA1041443A2 High pressure hose composed of elastomers and embedded reinforcements |
| 10/24/1978 | US4121686 Hollow sound-dampened structure |
| 10/17/1978 | US4120325 Polyvinyl pipe coated with modified epoxy material |
| 10/17/1978 | CA1040557A1 Submarine piping section and process for production thereof |
| 10/17/1978 | CA1040453A2 Stirrup fabric and method for forming pipe reinforcement |
| 10/10/1978 | US4119748 Steel cord reinforced plastic materials |
| 10/10/1978 | CA1040116A1 Pipe and pipe fitting and method for manufacturing the same |
| 10/10/1978 | CA1040020A1 Coated metallic pipe |
| 10/03/1978 | US4117868 Refractory lined cylindrical article |
| 10/03/1978 | CA1039630A1 Strengthened metal pipe and process for making same |
| 09/19/1978 | US4114715 Pipe, in particular an exhaust pipe for motor vehicles |
| 09/19/1978 | US4114332 Anchoring system for prestressed concrete pipe |
| 09/12/1978 | US4113823 Centrifugal technique |
| 09/12/1978 | US4113814 Method for producing special pipes having longitudinally extending diaphragm partitions |
| 09/12/1978 | US4112869 Apparatus for forming a powder layer on the surface of a metallic squeeze-out tube |
| 09/05/1978 | US4112247 Gas feeder pipe assembly including electrical conductors |
| 08/22/1978 | CA1036777A1 Extrusion-molded article having good thermal stability |
| 08/15/1978 | US4107381 Composite article providing seamless fabric-lined bearings in multiple |
| 08/15/1978 | US4106528 Tube for fluid substances under pressure |
| 08/15/1978 | CA1036322A1 Distributors |
| 08/01/1978 | US4104095 Method for producing tubular article |
| 07/25/1978 | US4103320 Thermally insulated pipe with electrically conducting portions for dissipating static electricity |
| 07/18/1978 | US4101699 Ethylene-propylene-diene terpolymer polyethylene |
| 06/27/1978 | US4097569 Modified vinyl ester resin and pipe made therefrom |
| 06/27/1978 | US4097568 Resorcinol with monohydric phenolic resin/cement system |
| 06/27/1978 | US4096887 Multibore conduit |
| 06/13/1978 | US4094737 Pressurized-water reactor installation |
| 06/06/1978 | US4093193 Composite high temperature protection tube |