| Patents for F16L 9 - Rigid pipes (18,006) |
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| 03/12/1986 | EP0173693A1 Method of and means for forming and sealing helically wound tubes |
| 03/10/1986 | CN85107230A Pipeline cable for use under water |
| 02/18/1986 | US4570708 High strength steel pipes |
| 02/18/1986 | US4570680 Conduction of a chemically aggressive fluid |
| 01/30/1986 | WO1986000683A1 Large cross-section sunken conduit |
| 01/28/1986 | US4566496 Tubular plastics objects |
| 01/22/1986 | EP0169046A2 Composite mooring element for deep water offshore structures |
| 01/07/1986 | CA1199047A1 Process for providing a metal connector fixed to a pipe of composite material and pipe thus made |
| 12/24/1985 | CA1198380A1 Continuously produced inflatable hose including the method of producing same |
| 12/05/1985 | WO1985005431A1 A permanent conforming pipe for conducting fluids and the like and method for producing the same |
| 12/04/1985 | EP0162863A1 Conduit |
| 11/13/1985 | EP0160890A2 Smoke conduit affixable to a framework |
| 11/06/1985 | EP0160498A2 Conduit cable support |
| 10/29/1985 | US4549919 Process for providing a metal connector fixed to a pipe of composite material and pipe thus made |
| 10/16/1985 | EP0158631A2 Process for manufacturing pipes made of fibre-reinforced thermosetting plastic and device for carrying out this process |
| 10/10/1985 | WO1985004380A1 Structures reinforced by a composite material |
| 10/08/1985 | CA1194819A1 Tubular plastics objects |
| 10/08/1985 | CA1194817A1 Trenchduct side member extrusion adapted for multiple positioning of cover plate |
| 10/02/1985 | EP0156711A1 Welded double-walled tube and method for its manufacture |
| 10/01/1985 | CA1194348A1 Bimetallic pipe for corrosive fluids |
| 09/18/1985 | EP0154931A2 Method for making a composite tube |
| 09/03/1985 | US4538337 Method of mechanically prestressing a tubular apparatus |
| 08/29/1985 | WO1985003755A1 Method of and means for forming and sealing helically wound tubes |
| 08/27/1985 | US4537225 Conduit having waterproof layer of uniform thickness and method of manufacture |
| 08/21/1985 | EP0151930A2 Method of manufacturing a tubular element and compound tube obtained by said method |
| 08/20/1985 | US4536455 Oxidized aluminum film on inner layer of alluminum containing alloy; thermocracking |
| 08/13/1985 | CA1191744A1 Conduct pipe covered with electrically insulating material |
| 08/07/1985 | EP0150504A1 Rigid pipe, especially downpipe |
| 07/30/1985 | US4532165 Poly-1-butene resin composition |
| 07/24/1985 | EP0060856B1 Method for reinforcing a hollow body made by winding a profiled section, profiled section for implementing such method and reinforced pipes obtained thereby |
| 07/23/1985 | US4530379 Filament wound interlaminate tubular attachment |
| 06/26/1985 | EP0016817B1 An oriented, semi-crystalline polymer product and method and apparatus for producing such product |
| 05/23/1985 | WO1985002144A1 Single-wall pipe of plastics or other mouldable material and method and apparatus for continuously extruding such pipes |
| 05/22/1985 | EP0142482A2 Method and apparatus for continuously extruding single-wall ribbed conduits of plastics or other mouldable material |
| 05/21/1985 | CA1187314A1 Tube material for sour wells of intermediate depths |
| 05/14/1985 | US4516608 Tubular member |
| 05/09/1985 | WO1985002003A1 Conduit |
| 04/30/1985 | US4514245 Applying a resin coated flexible strip |
| 04/09/1985 | US4509447 Helical seamed structural vessel and method of forming same |
| 04/09/1985 | CA1185194A1 Steel tube |
| 03/14/1985 | WO1985001093A1 Pipe |
| 03/13/1985 | EP0133855A1 Concrete cover for pipelines and method of manufacturing it |
| 02/26/1985 | CA1183089A1 Multilayer spirally welded pipe |
| 02/19/1985 | US4500577 Metal pipe coated with thermoplastic synthetic resin |
| 02/12/1985 | CA1182262A1 Method and installation for transitory stiffening of soft materials |
| 02/05/1985 | US4497673 Carbon steel |
| 02/05/1985 | CA1182183A1 Device for improving the resistance and the stiffness of a subsea conduit |
| 01/29/1985 | US4495970 Large diameter plastic pipe |
| 01/22/1985 | US4495003 Manufacturing a steel tube including tufftriding |
| 01/22/1985 | US4494576 Reinforcing system for concrete pipe |
| 01/15/1985 | CA1180991A1 Synthetic resin inner tube element for dual tube core drill |
| 12/11/1984 | US4487000 Metal reinforcing strips |
| 12/05/1984 | EP0127248A1 Structural members and methods of fabricating the same |
| 12/05/1984 | EP0126736A1 3-layer tube forming apparatus |
| 12/04/1984 | US4485756 Helical seam structural vessel, method and apparatus of forming same |
| 11/27/1984 | US4484770 Tubing and fittings with cast-in-place liners |
| 11/22/1984 | WO1984004573A1 Method for obtaining hollow structures such as conduits, silos or shelters |
| 11/21/1984 | EP0126011A1 Process for obtaining hollow structures such as ducts, silos or shelters |
| 11/21/1984 | EP0029043B1 Packless silencer |
| 11/20/1984 | CA1178220A1 Process for reinforcing a hollow body made from a rolled channel, channel used in the process, and reinforced tubing so made |
| 11/13/1984 | US4482420 Apparatus for producing composite pipes |
| 10/23/1984 | US4478898 Laminated porous polytetrafluoroethylene tube and its process of manufacture |
| 10/02/1984 | US4474726 Method of producing a channeled plastic pipe with closed channel ends |
| 09/19/1984 | EP0118945A2 Flexible bank of tubes and method of manufacture of the same |
| 09/11/1984 | US4470188 Method of mechanically prestressing a tubular apparatus |
| 09/11/1984 | CA1174187A1 Square corner design for ductwork |
| 09/04/1984 | US4469138 Pipes made of polypropylene reinforced with carbon fibers |
| 08/28/1984 | CA1173376A1 Plastic pipe having an oxygen-impermeable casing |
| 08/21/1984 | US4466467 Stackable stirrup mat |
| 08/01/1984 | EP0114635A2 Tube with D-shape cross section |
| 07/25/1984 | EP0113841A2 Process for producing a shaped body from composite material, and shaped body obtained by the process |
| 07/24/1984 | CA1171438A1 Drain fitting |
| 07/10/1984 | US4459063 Building construction |
| 07/10/1984 | US4458724 Solid solutions |
| 07/10/1984 | US4458722 Corrugated tube |
| 07/10/1984 | CA1170559A1 Method and apparatus for processing compressible material |
| 06/26/1984 | CA1169789A1 Pipes |
| 06/20/1984 | EP0111271A1 Pipe of plastic, especially for sewage |
| 06/12/1984 | US4453571 Square corner design for ductwork |
| 05/29/1984 | US4450873 Reinforced plastic composite structure |
| 05/24/1984 | WO1984001988A1 3-layer tube forming apparatus |
| 05/23/1984 | EP0108860A1 Method of manufacturing devices, pipes and the like with a metal sheet lining or covering |
| 05/22/1984 | US4449904 Apparatus for the hydrostatic extrusion of thermoplastic polymers |
| 05/15/1984 | US4448610 Spray cooling in chill mold, then bainitisation in a furnace |
| 05/15/1984 | CA1167218A1 Process for the continuous extrusion forming of a plastic double-walled foam-core conduit |
| 05/08/1984 | CA1166808A1 Biaxially oriented thermoplastic polymer film and method of manufacture |
| 05/01/1984 | US4446181 Manufacture of tubular laminates |
| 05/01/1984 | US4445539 Dip tube and valve with quick-disconnect coupling for a collapsible container |
| 04/25/1984 | EP0106625A2 Strip wound tubular bodies with light weight core |
| 04/10/1984 | CA1165217A1 Manufacture of composite shafts |
| 04/03/1984 | US4440195 Plastic tube with longitudinal channels in the wall |
| 04/03/1984 | CA1164816A1 Method of relining sewers and water lines without excavation |
| 04/03/1984 | CA1164638A1 Method for producing a tube for a cracking plant |
| 03/21/1984 | EP0103439A1 Methods of prestressing and methods of manufacturing tubular apparatus |
| 03/20/1984 | US4438056 Method for producing a corrugated pipe having a smooth lining of foam plastic |
| 03/20/1984 | US4437495 Pipes and pipe coatings |
| 03/13/1984 | US4435894 Ductile cast iron pipe having constricted end casing |
| 02/28/1984 | US4433815 For doubling and twisting operations |
| 02/07/1984 | US4429654 Helical seam structural vessel, method and apparatus of forming same |
| 02/07/1984 | CA1161612A1 Application of ambient temperature cured polymers or prepolymers to a cured elastomer |