| Patents for F16L 9 - Rigid pipes (18,006) |
|---|
| 05/05/1993 | EP0539429A1 Composite pipe with one or more layers of strip material wound around an inner pipe and reel provided with such a composite pipe wound onto it. |
| 05/04/1993 | US5207960 Sintering, rolling, elongation, extraction |
| 04/28/1993 | EP0426703B1 Pressure-tube of vinylchloride plastic |
| 04/22/1993 | DE4233513A1 Pipeline for exhaust air systems - has several connectable pipe sections and tension ring |
| 04/15/1993 | WO1993007412A1 Helically wound reinforced ribbed composite structure |
| 04/14/1993 | CN2129856Y Fluorine plastic lining pipe |
| 04/14/1993 | CN2129855Y Ribbed anti-pressure plastic tube |
| 04/13/1993 | US5202076 Method for producing multi-layer pipe conduit components of plastic material, inorganic filler material and glass fibers |
| 04/07/1993 | EP0535223A1 Tube or pipe formed from a thermoplastic powder impregnated fiberglass roving. |
| 04/06/1993 | CA1315825C Pipe connecting element |
| 04/01/1993 | DE4209603C1 Simple and watertight wall pipe section for well construction - includes individual pipe sections joined together via T=shaped sheet and comprising gravel, mineral filler, binder and foaming agent |
| 04/01/1993 | DE4132084A1 Lightweight, corrosion-resistant sewer pipe - has plastic lining and casing and load-resistant steel or cast-iron@ core tube |
| 03/31/1993 | CN1070462A Magnesian glassfibre water-carriage pipeline |
| 03/23/1993 | US5195675 Method for producing a composite pipe |
| 03/17/1993 | EP0531790A2 Composite pipe, method of manufacture and connection of said composite pipe |
| 03/16/1993 | US5194471 Rigid chlorinated polyvinyl chloride compound and articles derived therefrom |
| 03/10/1993 | EP0530588A1 System for forming lined passages through concrete walls |
| 03/09/1993 | US5191916 Pressure-resistant helical corrugated pipe |
| 03/04/1993 | DE4224564A1 Edelstahlmehrfachrohrleitung Stainless steel multi-pipe line |
| 03/04/1993 | DE4128654A1 Laminar plastic pipe - comprises intermediate pipe of different characteristics to corrugated outer one also joined to inner one |
| 03/04/1993 | DE4128202A1 Sintered alumina reaction tube - with internal spiral rib, esp. for high temp. hydrogen cyanide synthesis |
| 03/04/1993 | DE4128057A1 Twin wall rigid plastic pipe mfr. esp. for waste water - by co-extruding smooth wall inner and wave profiled outer wall and injection moulding socket and plug ends, etc. |
| 02/23/1993 | US5188152 Tubular structures for fishing rods or the like |
| 02/20/1993 | CA2076415A1 System for forming lined passages through concrete walls |
| 02/17/1993 | EP0527413A1 Wrapped flexible metal tube |
| 02/17/1993 | EP0527268A1 Method for producing a composite pipe |
| 02/16/1993 | US5186217 Fluid-impervious structure and method of making same |
| 02/11/1993 | DE4125941A1 Reducing oxygen@= diffusion by plasma-coating extruded plastics pipe - comprises polymerising gaseous monomer, e.g. ethylene@ by microwaves onto pipe surface within quartz tube in vacuum space near die for pore-free coating |
| 02/10/1993 | EP0526869A1 Multiple-duct tube for centrifugal blood separators and method of making the same |
| 02/09/1993 | US5184649 Pressure-resistant helical corrugated pipe |
| 02/04/1993 | WO1993002312A1 Device for the transport of materials |
| 02/04/1993 | DE4136060C1 Folding tunnel tube for mine - has two halves which are joined by hinge running along axis of tube |
| 02/03/1993 | EP0368974B1 Process for producing silicon caoutchouc tube membranes with mechanical wall reinforcement, development of tube membranes with mechanical wall reinforcement and their use |
| 02/03/1993 | CN1068637A Three-layer coil welding tube and its shape forming method and device |
| 01/27/1993 | EP0524893A1 Method for manufacturing tubes of fluorinated resin, particularly of polytetrafluoroethylene |
| 01/27/1993 | EP0524206A1 Composite tubular member with multiple cells |
| 01/27/1993 | CN1068290A External reinforcing method of polypropylene tube with glass fibre |
| 01/21/1993 | WO1993001441A1 Method for producing a line having variable stiffness, and related element |
| 01/21/1993 | DE4123617A1 Vorrichtung zum transport von stoffen Device for the transport of materials |
| 01/20/1993 | EP0523361A1 Pipe with ribs and method for making the same |
| 01/19/1993 | US5180254 Fluid-conveying conduit |
| 01/19/1993 | US5180193 Elastomer-lined metal pipe |
| 01/13/1993 | EP0522380A1 Multilayer oxygen barrier film, platic pipe containing it, and use thereof |
| 01/12/1993 | US5177834 Irrigation pipe handle |
| 01/07/1993 | EP0521322A2 Pipe comprising two half-shells |
| 01/07/1993 | EP0521247A1 Cable tubings bundle composed of a plurality of synthetic tubes |
| 01/07/1993 | DE4121936A1 Pipe for environmentally-harmful media - has test nipple connected to chamber at abnormal pressure between inner and outer tubes |
| 01/07/1993 | DE4120858A1 Laminate plastic cured by light at 20-60 deg. C - comprises inner layer of thermoplastic and an outer layer of fibre-reinforced reaction resins |
| 01/05/1993 | US5176180 Composite tubular member with axial fibers adjacent the side walls |
| 01/05/1993 | CA1312294C Circulation tube for inflammable fluid and piping made thereof |
| 12/30/1992 | EP0520013A1 Composite tubular member with axial fibers adjacent the side walls |
| 12/29/1992 | US5174340 Apparatus for preventing casing damage due to formation compaction |
| 12/17/1992 | DE4119190A1 Design formula thin-walled cylinders under external pressure - is applicable for all cylinders irrespective of ratio of dia. to length |
| 12/17/1992 | DE4119159A1 Longitudinal seam welding tubing prodn. - using protective oil or fat film with flame point well below welding temp. to ensure its complete removal before welding |
| 12/16/1992 | EP0518254A2 Double walled pipe and method of assembling the same |
| 12/10/1992 | WO1992021908A1 Laminated pipe and a process for making the same |
| 12/09/1992 | EP0516945A2 Stiffening device for sheet metal airducts |
| 12/09/1992 | CN2124365U Composite thermal insulation air pipe for air conditioning |
| 12/09/1992 | CN2124364U Steel-plastic pipeline |
| 12/02/1992 | CN2123673U Glass fiber reinforced plastics lining pipe |
| 12/01/1992 | US5167994 Reusable core for paper rolls |
| 12/01/1992 | US5167259 Three-layer fuel-line hose |
| 11/24/1992 | US5165822 Pipe joint for driving pipes laid underground by the driving technique |
| 11/19/1992 | EP0513292A1 Tube joint, in particular for composite tubes. |
| 11/18/1992 | CN2122296U Steel waterpipe having rubber lining |
| 11/18/1992 | CN2122295U Combined tuyere pipe having plastic/cotton thermal insulation |
| 11/17/1992 | US5163602 Multi-walled steel pipe, a method of making the same and a metal strip for use in making the same |
| 11/17/1992 | CA2042756A1 Fluid directing systems |
| 11/12/1992 | WO1992019904A1 A structurally composite metal and plastics tube and method of manufacture |
| 11/12/1992 | DE4132984C1 Gas and liquid impermeable tubing - comprises core tube of polyethylene@ with polyvinylidene fluoride casing |
| 11/10/1992 | US5162622 Exhaust silencer |
| 11/03/1992 | CA1309668C Anti-static non-metallic pipe or fitting |
| 10/29/1992 | WO1992018559A1 Tube or pipe formed from a thermoplastic powder impregnated fiberglass roving |
| 10/28/1992 | EP0510310A2 Rigid chlorinated polyvinyl chloride compound and articles derived therefrom |
| 10/28/1992 | CN2120241U Monolithic steel and plastics compound tube fitting |
| 10/27/1992 | US5158115 For use in underground installations |
| 10/22/1992 | DE4133802C1 Thermoplastics thrust pipe - has respective plug and socket ends with opposed angle cone design so it can mate with next section |
| 10/21/1992 | EP0509480A1 Laminated tube |
| 10/21/1992 | EP0509212A2 Plastic pipe having a plurality of layers |
| 10/21/1992 | EP0332654B1 Method of and machine for winding tubes from strip |
| 10/21/1992 | CN1018759B Pipe with lined rubber of dust-extraction system in heat end power plant |
| 10/20/1992 | US5156190 Hydraulic safety hose with fluid removal conduit |
| 10/14/1992 | EP0508875A1 Prefabricated tubular element |
| 10/07/1992 | EP0507613A2 Ultra-high molecular weight polyethylene thin-wall pipe, and method of and apparatus for manufacturing the same |
| 10/07/1992 | EP0506930A1 Process for joining plastic component parts. |
| 09/30/1992 | EP0505759A2 Isolation material for pipe conduits |
| 09/30/1992 | CN2117523U Unequal wall thickness gapless rail |
| 09/29/1992 | US5151144 Lightweight |
| 09/29/1992 | US5150812 Lightweight |
| 09/24/1992 | DE4111529A1 Antistatic polymer pipe esp. for combustible medium e.g. for fuel pipe - has narrow metal tape on inside to earth voltage or charge |
| 09/22/1992 | CA1307749C Ducting for transporting granular or powder substances under gravity, in particular on sites having silos |
| 09/16/1992 | CN2116139U Polyvinyl and polyvinyl-chloride composite pipe |
| 09/16/1992 | CN1064439A Steel and plastic composite tube |
| 09/09/1992 | EP0413753B1 Tubing collar |
| 09/08/1992 | US5145103 Partial elimination of copper plate from steel strip by mechanical means |
| 09/08/1992 | CA1307213C Plastic coated steel tube |
| 08/26/1992 | CN1063857A Ceramic tube made from synthetic resin |
| 08/19/1992 | EP0498925A1 Device for connecting tubes insertable into wells and filled with bentonite |
| 08/13/1992 | DE4040400A1 Double skinned plastics thermally insulated pipeline for hot water heating system - is made from recycled plastics waste with spacers and inner linear |
| 08/12/1992 | EP0498042A1 Pipe with internal coating |