Patents for F16L 9 - Rigid pipes (18,006)
09/1995
09/06/1995EP0670019A1 Self locking slitted corrugated tubing
09/06/1995CN1107929A Oil well pipe and method for making the same background of the invention
09/05/1995US5447390 Process for manufacturing a variable stiffness line and associated element
09/05/1995CA1336865C Welded corrosion-resistant ferritic stainless steel tubing and a cathodically protected heat exchanger containing the same
08/1995
08/31/1995WO1995023036A1 Fluoropolymer composite tube and method of preparation
08/30/1995EP0668978A1 Multilayer fire protective coating.
08/29/1995CA2038806C Process and device for applying a detector wire in a cable duct
08/24/1995WO1995022712A1 Cold-formable composite pipe
08/24/1995CA2182996A1 Cold-formable composite pipe
08/23/1995EP0668145A1 Method and apparatus for producing a plastic pipe and a plastic pipe
08/22/1995CA2143069A1 Method and apparatus for producing a plastic pipe and a plastic pipe
08/17/1995WO1995021640A1 Elastic guide catheter transition element
08/16/1995EP0667482A1 Branch pipe or pipe made of cast iron or steel
08/16/1995CN2205482Y 橡塑金属复合管道 Rubber and metal composite pipes
08/15/1995US5441780 Paper tube with integral end supports
08/15/1995US5441241 Knuckle for welding of safety hand railings
08/10/1995WO1995021051A1 Process for producing corrugated multi-layer tubing having layers of differing plastic characteristics
08/09/1995CN1106513A Laminated resin and fibre pipe and its mfg. method
08/03/1995DE4402372A1 Washing fluid feed line for washing plant
08/02/1995EP0665404A1 A gas transport hose
08/02/1995EP0665366A1 Double wall exhaust pipe
08/02/1995EP0664864A1 Corrugated multilayer tubing having at least one fluoroplastic layer
08/02/1995EP0664863A1 Corrugated multilayer tubing having at least two dissimilar polymeric materials
08/02/1995EP0664862A1 Manufacture of helically corrugated conduit
08/01/1995CA2064939C Ultra-high molecular weight polyethylene thin-wall pipe, and method of and apparatus for manufacturing the same
07/1995
07/20/1995WO1995019522A1 Pipes for systems used in motor vehicles and process for producing the same
07/20/1995WO1995019521A1 Dual containment pipe and method of installation
07/20/1995CA2181599A1 Dual containment pipe and method of installation
07/18/1995US5433252 Fluid containing coaxial tube for control systems
07/13/1995WO1995018936A1 Reinforced flexible corrugated tubing
07/13/1995DE4437380A1 Twin=walled exhaust pipe - comprises two shanks joined by bend and inner pipe has two sections connected by sliding joint in one shank and inner pipe support is in bend
07/13/1995CA2180940A1 Reinforced flexible corrugated tubing
07/12/1995EP0662579A1 Pre-fabricated insulation tube
07/12/1995EP0662564A1 Air gap insulation exhaust pipe and method of construction
07/11/1995US5431748 Impact bar for automobile
07/06/1995WO1995018275A1 Joint structure and joint method for a concrete structure
07/06/1995CA2156731A1 Joint structure and joint method for a concrete structure
07/05/1995CN2202838Y Plastics and steel wire weaving composite pipe
06/1995
06/29/1995WO1995017575A1 Drill pipe
06/28/1995CN1104310A Double-wall composite pipe and coupling structure assembly and method and apparatus for making same
06/28/1995CN1029153C Wear-resistant and corrosion-resistant composite steel pipe and its production method
06/22/1995WO1995016838A1 Scaffold system
06/22/1995DE4445083A1 Elastische Ummantelungen aus Poly(trifluorethen), ihre Herstellung und ihre Verwendung, besonders für Metallwellschläuche Elastic sheaths of poly (trifluorethen), their preparation and their use, particularly for flexible metal tubes
06/22/1995DE4343405A1 Heat exchange tube for tube cluster heat exchanger
06/21/1995CN2201554Y Thermal insulating rubber tube
06/20/1995US5425817 Transporting chemicals
06/18/1995CA2138355A1 Flexible polytrifluoroethylene jacket and its application to metal hoses
06/18/1995CA2111724A1 Scaffold system
06/15/1995WO1995016159A1 Hollow reinforcing members and composites containing the same
06/14/1995DE4404492A1 Multilayer composite tube for hot water, sanitary applications etc.
06/08/1995WO1995015458A1 A coated spiral duct as well as a method and an apparatus for the production thereof
06/08/1995WO1995015406A1 Ultrapure gas and pure water feed duct, system and process equipment
06/08/1995WO1995015245A1 Centrifugally cast pipe
06/08/1995WO1995015239A1 Dual bias weld for continuous coiled tubing
06/07/1995CN2200092Y Polyethylene clad steel pipe with rubber coating aluminium foil layer
06/06/1995US5421938 Circular duct and apparatus and method of fabrication
05/1995
05/30/1995US5419374 Polyamide-based tube for a gasoline transport
05/26/1995WO1995013917A1 Metal pipe with integrally formed liner and method of fabricating the same
05/24/1995DE4405382C1 Burner pipe for burners in industrial furnaces
05/24/1995CN2198487Y High strength rear resistance composite pipe
05/24/1995CN1028559C Wearing-proof compound tube and its manufacture method
05/23/1995US5417997 Process of making reinforced porous pipe
05/23/1995US5417561 Apparatus for manufacturing of ultra high molecular weight polyethylene thin wall pipe
05/17/1995CN2197542Y Iron and copper composite pipe
05/16/1995US5415242 Process and device for making an electrically conducting connection between cable ducts
05/16/1995US5415203 Pipe having temperature display chips that change color
05/16/1995CA2045937C Reusable core for paper rolls
05/11/1995WO1995012779A1 Secondary containment flexible underground piping system
05/10/1995CN2196720Y Stain-less steel composite steel-pipe
05/09/1995CA2036390C A pipe joint for driving pipes laid underground by the driving technique
05/04/1995DE4438139A1 Thermisch heizbare Leitung Thermally heated line
05/03/1995EP0650756A1 Support cage for fiber glass tube filter for filtering gas
05/02/1995US5411060 Composite pipe
04/1995
04/27/1995DE4335722A1 Process and apparatus for the production of a pipe-within-a-pipe line
04/26/1995EP0650004A1 Multilayered plastic hose
04/26/1995EP0649739A1 Multilayered plastic hose
04/26/1995CA2114503A1 Multilayer plastic pipe
04/20/1995WO1995010872A1 Flexible duct for underground cable
04/19/1995EP0648966A2 Weldable plastic pipe, especially for gas and fluid conduits
04/19/1995EP0648855A1 Production method for seamless pipes of non-ferrous metals, in particular copper and copper alloys
04/18/1995US5406983 Corrosion-resistant composite couplings and tubular connections
04/13/1995WO1995009999A1 Fluid line
04/13/1995DE4434818A1 Flue-pipe column with pipe socket
04/12/1995EP0632873A4 Water conserving wastewater disposal system.
04/11/1995US5404915 Multilayer plastic pipe
04/06/1995WO1995009081A1 Multiply polymer pipe
04/06/1995DE4408444C1 Pipe or hollow profile with special strength properties along with a low weight, and process for the production thereof
04/06/1995DE4333274A1 Reinforced-concrete pipe with interior anchor rail
04/05/1995EP0646685A1 Concrete column forming tube having a smooth inside coated surface and method of making same
04/05/1995CN2193953Y Mine compound tube
04/04/1995US5402830 Thermal pipe guard
04/04/1995US5402829 Structure for high-pressure fuel injection tube and method of manufacturing the same
03/1995
03/30/1995DE4332775A1 Process for moulding an insertion sleeve onto a pipeline section
03/30/1995DE4332774A1 Pipeline section produced from polyethylene by extrusion
03/29/1995EP0645571A1 Extruded pipe end made from polyethylene and method for producing same
03/29/1995EP0644990A1 Multi-layer fuel and vapor tube
03/29/1995EP0644979A1 Method and apparatus for inspecting subsurface environments
03/28/1995US5401301 Device for the transport of materials and electrostatic precipitation
03/28/1995US5400828 Double-containment piping supports for improved annulus flow
03/16/1995WO1995007428A1 Thermoplastic composite pipe