Patents
Sitemap › F16 - Engineering elements or units; General measures for producing and maintaining effective functioning of machines or installations; Thermal insulation in general › F16L - Pipes; Joints or fittings for pipes; Supports for pipes, cables or protective tubing; Means for thermal insulation in general › F16L 9 - Rigid pipes
Patents for F16L 9 - Rigid pipes (18,006)
12/1999
12/29/1999CN1047832C Fluid circulation pipe and its manufacturing method
12/28/1999US6006788 Flexible pipe with internal gasproof undulating metal tube
12/28/1999US6006565 Hydraulically efficient ribbed pipe and method of making thereof
12/23/1999DE19826991A1 Two part polymer concrete drain
12/22/1999EP0965782A2 Protecting tube for a feed pipe
12/22/1999EP0964768A1 Electro-optical removal of plastic layer bonded to a metal tube
12/22/1999CN2355195Y Composite pipes
12/22/1999CN2355194Y Alumetized steel pipes
12/22/1999CN1239539A Oil well pipe
12/21/1999US6004639 Suitable for use in the oil industry,
12/21/1999US6003562 Extruded multiple plastic layer coating bonded to a metal tube and process for making the same
12/21/1999US6003560 Method for nesting multiple concentric pipes
12/21/1999US6003220 Method and apparatus for producing helically wound lock-seam tubing
12/16/1999WO1999064097A1 Double walled catheter and method of manufacture
12/15/1999EP0673753B1 Porous tube of fiber-reinforced plastic and methods of manufacturing the same
12/15/1999CN1238427A Antiwear composite pipe without dirt deposit and its manufacture technology
12/14/1999US6000438 Phase change insulation for subsea flowlines
12/14/1999US6000436 Fluid conduit systems and methods for making
12/09/1999WO1999062704A1 Composite pipe structures having improved containment and axial strength
12/09/1999WO1999062654A1 Bimetallic corrugated tube and process for its manufacturing
12/08/1999EP0962687A2 Concrete pipe
12/08/1999EP0961678A1 Extruder
12/07/1999US5996645 Aluminum alloy extruded square pipe excellent in axially compressive properties for automobile front side member
12/07/1999US5996644 Duct joint structure, assembly tool, duct assembly method and hanger
12/07/1999US5996642 Multi-layer tubing having electrostatic dissipation for handling hydrocarbon fluids
12/07/1999US5996635 Composite pipe with a socket and method for its manufacture
12/02/1999WO1999061833A1 Multilayer composite pipe, fluid conduit system using multilayer composite pipe and method of making the composite pipe
12/02/1999DE19823585A1 Verbundelement enthaltend Polyisocyanat-Polyadditionsprodukte Composite element containing polyisocyanate polyaddition
12/01/1999EP0960723A2 Composite elements comprising polyisocyanate-polyaddition products
12/01/1999EP0960296A2 Double containment pipe sections
12/01/1999EP0912325A4 Fiber-reinforced resin pipe having improved impact resistance
12/01/1999EP0848662B1 Sandwich structure
12/01/1999CN2351648Y Lining plastic and aluminium alloy pipe
12/01/1999CN2351647Y Composite stainless steel pipe
12/01/1999CN1237236A Corrosion- and fire-resistant pipe system
11/1999
11/30/1999US5992469 Composite pipe with integral socket
11/24/1999EP0958180A1 Method and device for production of tubes
11/24/1999EP0958078A1 USE OF A Ni-BASE ALLOY FOR COMPOUND TUBES FOR COMBUSTION PLANTS
11/24/1999EP0823867B1 Process for sheathing a plastic pipe with a metal sheath
11/18/1999DE19821836A1 Device for purposeful reduction of flow noise
11/18/1999DE19758124C1 Polypropylenrohr mit hoher Festigkeit Polypropylene tube with high strength
11/17/1999CN2349433Y Flexible pipe for connection of marine pipe line
11/16/1999CA2014576C Composite tube with fiber-thermoplastic coating and process for fabricating same
11/11/1999WO1999057474A1 Composite pipes, pipe system and the use of composite pipes for conducting water
11/11/1999WO1999057473A2 Multi-layer filler pipe for vehicle fuel tanks
11/11/1999WO1999057471A2 Abrasion resistant pipe
11/11/1999WO1999057193A1 Master batch
11/11/1999DE19819565A1 Antistatische und peroxidstabile Formmassen Antistatic and peroxide-molding compounds
11/11/1999CA2331317A1 Multi-layer filler pipe for vehicle fuel tanks
11/10/1999EP0954712A1 Concrete pipes and methods for the manufacture thereof
11/10/1999EP0809726B1 Protective sleeve with warp spacers
11/10/1999CN2348226Y Air guide tube without seam inside
11/09/1999US5980751 Air lift pump for membrane separation unit
11/09/1999US5980670 Applying outer layer of polymer material to portion of outer surface of pipe such that portion of outer layer extends beyond and covers first end of pipe; an inner layer of polymer material is applied to inner surface; blending
11/09/1999US5979506 Arrangement in a pipe bundle
11/04/1999WO1999056048A1 Safety-enhanced heat tracing
11/04/1999WO1999056000A1 Deformable liner tube
11/04/1999WO1999055999A1 Foldable tube
11/04/1999DE19819568A1 Fluid pipeline system incorporating information cable or line
11/03/1999EP0953796A1 Antistatic and peroxide-resistant moulding compositions
11/03/1999CN1233972A Modular filtration system
11/02/1999US5976298 Method of producing multilayer thermoplastic pipe
10/1999
10/28/1999WO1999054653A1 Flexible protective sleeve
10/28/1999WO1999054126A1 Bias longitudinal weld
10/28/1999DE19818167A1 Flexibles Leitungsrohr Flexible Conduit
10/27/1999EP0952382A2 Flexible conduit
10/27/1999EP0952306A1 Foldable tube
10/27/1999EP0952305A1 Deformable tube
10/27/1999CN1046023C Self-locking quick pipe connector
10/26/1999US5972450 Coated metal tubing arrangement comprising inner layer of first polymeric material bonded to the tube to provide corrosion protection and outer layer of second polymeric material to absorb impact energies and to eliminate mechanical
10/26/1999US5972274 Making of ceramic tube
10/26/1999US5971440 Pipe assembly
10/26/1999US5971034 Comprising sheet of flexible, closed cell foam composition, said sheet having face with a substantially smooth surface and having coating of pressure sensitive adhesive on second face of the sheet, low volatile content
10/26/1999US5971033 Profiled tube, corrugated hose or the like elongate portion with mutually parallel peripheral grooves
10/26/1999CA2120656C Apparatus for joining structural components
10/20/1999EP0949996A2 Laminate structures for fuel containers
10/20/1999CN2344632Y Aluminium-plastics composite pipe
10/20/1999CN2344631Y Plastics stainless steel running water pipe
10/20/1999CA2248584A1 High pressure low cost prestressed composite wrapped transmission line system
10/14/1999WO1999051905A1 Internally divided water pipe and diverter valve therefor
10/14/1999DE19727907C2 Verfahren zum Füllen von Doppelwandungshohlräumen eines Doppelwandigenauspuffrohres und doppelwandiges, insbesondere abgasführendes Rohr Method for filling Doppelwandungshohlräumen a Doppelwandigenauspuffrohres and double-walled, in particular exhaust gas carrying pipe
10/13/1999EP0949439A1 Device for conveying or storing pourable food product and process for producing the same
10/13/1999EP0949068A2 Separation of insulated pipes
10/13/1999EP0644990B1 Multi-layer fuel and vapor tube
10/12/1999USRE36340 Centrifugally cast pipe
10/12/1999US5964251 Hydrogen bonding
10/06/1999EP0948108A2 Corrugated tubing with foot
10/06/1999EP0947756A2 Modular fluid element for a sanitary and/or heating installation, in particular a sanitary and/or heating pipe
10/06/1999EP0946362A1 Plastic based multilayer structure and tube with multilayer structure
10/06/1999CN2342208Y Slender thin wall metal variable diameter pipe for refrigerating circulation system
10/05/1999US5961749 Use of a brass alloy for sanitary pipes
10/05/1999US5960820 Cover assembly having rapid installation features for covering undersink piping
10/05/1999CA2183693C Multi-layer pipe
09/1999
09/30/1999WO1999049476A1 A structural element, a set of such elements and a method for producing it
09/30/1999WO1999049257A1 Pipe coupling
09/30/1999WO1999049254A1 Multilayer plastic pipe and its use
09/29/1999EP0945665A1 Tube, in particular wrapped tube
09/29/1999CN2341001Y Steel plastic composite pipe
09/29/1999CN2341000Y Stainless steel composite net sand filtering pipe
09/29/1999CN2340999Y Thermal insulating pipe with low heat radiation
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