| Patents for F16L 9 - Rigid pipes (18,006) |
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| 05/20/2004 | US20040094222 Composite strip windable to form a helical pipe and method therefor |
| 05/19/2004 | EP1419871A1 Method and apparatus for producing multilayer plastic pipe |
| 05/19/2004 | DE10249454A1 Isoliertes Leitungsrohr für den Einsatz in Sanitär- und Heizungsanlagen Insulated conduit pipe for use in sanitary and heating installations |
| 05/18/2004 | US6737134 Abrasion resistant pipe |
| 05/18/2004 | US6736168 Fiber reinforced plastic pipe and filament winding apparatus |
| 05/13/2004 | WO2004026499A9 Duct reinforcement rod and fabrication apparatus |
| 05/13/2004 | US20040091321 Double-sheath pipe for transporting fluids, provided with a device for limiting propagation of an outer tube and method for limiting propagation |
| 05/13/2004 | US20040089970 Treating pipes according to which the flexibility of the pipe is increased or maintained, or at least any decreases in the flexibility of the pipe is minimized, in relatively low temperature environments. |
| 05/13/2004 | US20040089405 Method for forming double containment pipeline sections |
| 05/13/2004 | DE4143670B4 Isoliermaterial zur Schalldämmung von Rohrleitungen Insulation for sound insulation of pipelines |
| 05/12/2004 | EP1418374A1 Heat-resistant tube |
| 05/12/2004 | EP1133655B1 Pipe coupling having same outer diameter as pipe |
| 05/12/2004 | CN2615470Y High-density polytene sheets for winding pipe |
| 05/12/2004 | CN1496419A Method and device for production of endless plastic hollow profiles |
| 05/12/2004 | CN1495014A Thermoplastic polymer base and polyolefin base hose for oil field or natural gas field operation |
| 05/12/2004 | CA2448935A1 High density plastic tubing with included power transmission cabling for downhole use in petroleum industry |
| 05/12/2004 | CA2411597A1 High density plastic tubing with included power transmission cabling for downhole use in petroleum industry |
| 05/11/2004 | US6732766 Pipe comprising a porous inner wall |
| 05/06/2004 | WO2004038301A1 Corner piece-less duct, method of producing the same, and duct-forming machine |
| 05/06/2004 | US20040086672 For use as frame component of a structure such as a flow-through rack, a driven conveyor or the like for holding or transporting parts of low electrical current devices |
| 05/06/2004 | EP1416216A2 Insulated pipe for use in sanitary and heating installation |
| 05/06/2004 | DE202004001896U1 Concrete feed pipe consists of pressure-resistant outer casing and wear-resistant inner lining, whereby matrix as wear lining of mineral or metallic material and binder is provided as wear-resistant inner lining |
| 05/05/2004 | CN2614301Y Stainless steel and glass reinforced plastic multiple-unit tube |
| 05/05/2004 | CN1493810A Inorganic nano-antibacterial hard polyvinyl chloride water supply pipe |
| 05/05/2004 | CN1148522C Multi layer composite pipe with corrosion resistant metal lining and its producing method |
| 05/04/2004 | US6729354 Double-pipe-structure hollow member, method of manufacturing double-pipe-structure hollow member, and fluid treating system employing double-pipe-structure hollow member |
| 04/29/2004 | WO2004026571A9 Compounded nylon 6, nylon 12 material for air brake systems |
| 04/29/2004 | US20040081784 Conduit and method of forming |
| 04/29/2004 | US20040081763 By which a technically usable metal coating can be produced in accordance with thin-layer technology at high production speed |
| 04/29/2004 | US20040079371 Limb for breathing circuit |
| 04/29/2004 | US20040079216 Centrifugally-cast tube and related method and apparatus for making same |
| 04/29/2004 | US20040078956 Duplex pipe end working method |
| 04/29/2004 | DE20219690U1 Vorrichtung zum Transport von mehrphasigen Fluiden Device for transporting multiphase fluids |
| 04/29/2004 | DE202004002884U1 Heating circuit distributor has tubular housing with polygonal cross section, with male thread on at least one end in corners of housing, and sealing plug on at least one end of housing with connector extending into housing |
| 04/28/2004 | EP1412119A1 Improved centrifugally-cast tube and related method and apparatus for making same |
| 04/28/2004 | CN1147568C High temperature wear resistant short tube material of heavy oil catalytially cracking equipment |
| 04/28/2004 | CN1147527C High mixture-quality Bi-model polyethylene blends |
| 04/27/2004 | CA2019967C Improved pipe lining product, process and apparatus |
| 04/22/2004 | WO2004033948A1 Hydraulic line, method for producing a hydraulic line, and extruded composite profile for using in one such method |
| 04/22/2004 | WO2003004207A8 Glossy tubes and pipes |
| 04/22/2004 | US20040076780 Method of producing a shaped article having excellent barrier properties |
| 04/22/2004 | US20040074554 Foam annular core that provides homogenous melt flow to each axially displaced orifice by means of an individual concentric spiral mandrel are disclosed. Spiral mandrels transport the melt from the extruders initially in spiral |
| 04/22/2004 | DE10247279A1 Water-feeding pipe made from natural produced mineral building material, especially concrete, used in industrial installations, has an inner surface with sections made from a sheet metal lining of a biocidal copper-nickel alloy |
| 04/21/2004 | EP1409908A1 Control cable |
| 04/21/2004 | EP1409245A2 Glossy tubes and pipes |
| 04/21/2004 | EP1301343B1 Singlelayer and multilayer polyolefin foam pipes |
| 04/21/2004 | CN2612860Y Random copolymerized polypropene compound tube |
| 04/21/2004 | CN2612859Y A aluminum net reinforced aluminum-plastic compound pipe |
| 04/21/2004 | CN2612858Y Antibiotic steady state random copolymerization polypropylene pipe |
| 04/21/2004 | CN2612857Y High temperature resistant steady state steel-plastic compound tube |
| 04/21/2004 | CN2612856Y A reinforced plating steel-plastic compound tube |
| 04/21/2004 | CN1490154A Plastic alloy composite pipe and producing method thereof |
| 04/21/2004 | CN1146701C Pipe coupling having same out diameter as pipe |
| 04/21/2004 | CN1146482C Production process of composite aluminium-plastic pipe and its special pipe drawing machine |
| 04/20/2004 | US6722392 Carbon fibers embedded in resin with plastic overmolding |
| 04/15/2004 | US20040072485 Buoyancy control systems for tubes |
| 04/15/2004 | US20040071941 Covering for protecting surfaces in general |
| 04/15/2004 | US20040071910 Tubular element for forming pipes for trunk lines, purification plants and sewage systems in general |
| 04/15/2004 | US20040069361 Hose for conveying fluids containing hydrogen |
| 04/15/2004 | DE10243714B3 Hydraulic duct of pref. aluminum/alloy esp. for motor vehicles etc. consists of individual profiled tubes connected via tear-off strip, with wall thickness selected dependent upon hydraulic pressures |
| 04/14/2004 | EP1408267A1 Pipe for carrying fluids comprising hydrogene |
| 04/14/2004 | EP1408266A1 Tubular element for forming pipes for trunk lines, purification plants and sewage systems in general |
| 04/14/2004 | EP1408173A1 Covering for protecting surfaces in general |
| 04/14/2004 | EP1406967A1 Ethylene polymer composition |
| 04/14/2004 | EP1237710B1 A reinforcing structure for stiff composite articles |
| 04/14/2004 | CN2611714Y Naval fluid duct |
| 04/14/2004 | CN1145669C Polymer composition for pipes |
| 04/13/2004 | US6720048 Polyethylene homopolymers/copolymers; durability, rigidity, impact resistance, creep resistance; crystal structure |
| 04/13/2004 | US6719009 Composite material piping system |
| 04/08/2004 | DE202004000045U1 Fluid pipe for use in road vehicle, boat or aircraft is made of metal with plastics layer on inside and outside and has region near end deformed outward to form radial flange which may be gripped by hose |
| 04/08/2004 | DE19957567B4 Diffusionsdichte Fluidleitung Diffusion density fluid line |
| 04/08/2004 | DE10243639A1 Abluftkamin, insbesondere für Tierstallungen Vent stack, especially for animal stables |
| 04/07/2004 | EP1405875A2 Process for the preparation of an ethylen polymer composition |
| 04/07/2004 | EP1404504A2 Corrugated plastic pipe sections having a flanged ends and structurally tight joints thereof |
| 04/07/2004 | CN2610196Y Structure for waterpipe or support |
| 04/07/2004 | CN2610195Y Framework wire special for steel framework plastic composited tube |
| 04/07/2004 | CN1487898A Method for storing and transporting chloroformic esters |
| 04/07/2004 | CN1144967C Spiral strengthening hose |
| 04/06/2004 | US6718100 Fire resistant conduit insert for optical fiber cable |
| 04/06/2004 | US6716520 Structural reflective insulating material for ducts and other purposes |
| 04/01/2004 | WO2004027303A2 Duct fastseam |
| 04/01/2004 | WO2004026571A1 Compounded nylon 6, nylon 12 material for air brake systems |
| 04/01/2004 | WO2004026499A2 Duct reinforcement rod and fabrication apparatus |
| 04/01/2004 | WO2004007108A3 Sound-absorbing hollow body for an air supply |
| 04/01/2004 | US20040060642 Simultaneous multilayer coextrusion of a polyamide and a fluorine addition polymer to form a laminate excellent in interlayer adhesion strength |
| 04/01/2004 | DE20320162U1 Pipeline for transporting corrosive materials in mining consists of plastic pipes held together by connector, all of which are flame retardant and electrically conductive |
| 04/01/2004 | DE20319278U1 Connecting system for metal pipes comprises internally- or externally-threaded ring which fits on to pipe end, which is then shaped to form flange and holds ring on |
| 03/31/2004 | EP1401937A1 Polyolefin multilayer pipe |
| 03/31/2004 | EP1401936A1 Polyolefin coated steel pipes |
| 03/31/2004 | EP1401893A1 Propylene polymer pipes for pipelines |
| 03/31/2004 | EP1023734B1 Multi-layer reinforced and stabilized cable construction |
| 03/31/2004 | CN2608799Y Composite plastic plate for manufacturing water supplying and draining pipe line |
| 03/31/2004 | CN1144018C Method for manufacturing double-walled heat exchanging tube with leak detection and said heat exchanging tube |
| 03/31/2004 | CN1143972C Multi-purpose conduit system and method for placing public facilities in massive structure |
| 03/25/2004 | WO2004024429A1 Conduits and method of forming |
| 03/25/2004 | US20040058113 Thermoplastic-polymer-and polyolefin-based flexible pipes for the operation of oil or gas fields |
| 03/25/2004 | US20040058111 Compounded nylon 6, nylon 12 material for air brake systems |
| 03/24/2004 | EP1400346A1 Conductive resin coated steel pipe and extrusion molding method for the steel pipe |
| 03/24/2004 | EP1400167A2 Exhaust duct, in particular for animal houses |
| 03/24/2004 | EP1399505A1 Industrial polyolefin piping system |