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)
01/1996
01/09/1996US5482403 Sewer construction and pipe encasement therefor
01/09/1996US5482090 Welded tube with excellent corrosion-resistant inner surface
01/09/1996US5482088 Supports double-containment systems with axial-guiding and flexibility
01/04/1996DE4416682C1 Protective tubing for electrical cable
01/03/1996EP0690255A1 Pipes for fluid flow and methods of making them
01/03/1996EP0546138B1 Method for producing a line having variable stiffness, and related element
01/03/1996CN2216625Y Pipe and connector using for transfering water, power and gas
01/02/1996US5480505 Method of fabricating a steel pipe with integrally formed liner
01/02/1996CA2014141C Fluid transmission line
12/1995
12/26/1995US5478620 Multilayer plastic pipe
12/26/1995CA2013808C Subterranean tubular earthwork and method of making same
12/21/1995DE4436646C1 Connector for quartz glass epitaxy bells
12/20/1995EP0687781A1 Joint structure and joint method for a concrete structure
12/20/1995CN1113650A Porous tube of fiber-reinforced plastic and method of manufacturing the same
12/20/1995CN1030541C Method and apparatus for three-layer welded pipes
12/19/1995US5476120 Lacquer-resistant fuel-line hose
12/14/1995WO1995033947A1 Interlocked plastic-encased concrete pipe
12/14/1995CA2191748A1 Interlocked plastic-encased concrete pipe
12/13/1995EP0686797A1 Multilayered plastic pipe with good layer adhesion
12/13/1995EP0686482A2 Fiber reinforced composite article having cylindrical form
12/13/1995EP0686246A1 Piping element for burried conduit, corresponding burried conduit, and method for protecting said piping element
12/13/1995CN1113303A Porous ceramic lining-tube and its production method
12/12/1995US5474822 For transporting petrochemicals; chemical resistance, stress resistance, dimensional stability
12/12/1995US5474109 Multilayer conduit having a polyester layer
12/06/1995EP0685674A1 Fuel conducting pipe
12/06/1995CN2214578Y Superthin reinforced pipe
12/05/1995US5473114 Clear tube section for pneumatic transport tube system
12/05/1995US5472754 Multilayer plastics material hose
11/1995
11/30/1995WO1995032355A1 Double walled insulated tubing and method of installing same
11/30/1995DE4418515A1 Concrete drain-pipe with flat side=face
11/29/1995EP0684419A1 Extension coupling for distribution devices for gaseous fluids and/or liquids
11/29/1995EP0683845A1 Drill pipe
11/28/1995US5469894 Metal duct subjected to steep temperature gradients
11/28/1995US5469892 Corrugated polymeric tubing having at least three layers with at least two respective layers composed of polymeric materials dissimilar to one another
11/23/1995WO1995031614A1 Pipe system
11/23/1995DE4417992A1 Thermoplastic tube, esp. for subterranean fluid transport and mfg. process
11/22/1995EP0683032A2 Apparatus for manufacturing coaxial conduit
11/22/1995EP0664862A4 Manufacture of helically corrugated conduit.
11/22/1995CN1112211A Seamless aluminium alloy pipe for tap water and water heating
11/22/1995CA2149856A1 Multilayer plastic pipe having good adhesion between layers
11/21/1995US5468033 Impact absorbing bumper mount and method of making
11/21/1995US5467904 Reinforced ceramic tube
11/21/1995US5467826 Oilfield tubing string integrally enclosing a fluid production or injection tube and a service line
11/16/1995WO1995030854A1 Spirally wound metal pipe having radially extending lock seam
11/15/1995EP0594752B1 Device for the transport of materials
11/15/1995CN1111736A Pipe material made from plastic alloy double-composite modified reinforced fibre glass and manufacturing method thereof
11/14/1995US5466510 Structure, method of preventing adhesion of adhesive substance, and method of preventing adhesion of non-vulcanized rubber
11/14/1995US5466322 Method for making an elongated plastic member assembly
11/09/1995WO1995030109A1 Extruded multiple plastic layer coating bonded to a metal tube and process for making the same
11/09/1995WO1995030105A1 Multi-layer tubing having electrostatic dissipation for handling hydrocarbon fluids
11/09/1995DE4431954C1 Hot gas pipe for conveying gas with hydrogen and carbon monoxide content
11/08/1995CN1111333A Coolant conduit
11/07/1995USRE35081 Composite structural member with high bending strength
11/02/1995WO1995029052A1 Lined conduit structure, end processed structure and method of lining end processed structure
11/02/1995EP0679826A1 Multilayer extruded polymer hose or pipe
11/02/1995EP0679825A1 Single or multilayer extruded polymer hose or pipe
11/02/1995DE4428236C1 Multi layer hose for motor coolants
11/02/1995DE4415178A1 Corrosion-proof composite tube for use in contact with flue gas etc.
10/1995
10/25/1995CN1110773A Fine coal ash plasticized pipe material
10/24/1995US5460771 Process for producing corrugated multi-layer tubing having layers of differing plastic characteristics
10/24/1995CA2084104C Elastomer-lined metal pipe
10/19/1995WO1995027867A1 Process for forming pipe of improved construction
10/19/1995WO1995027866A1 Corrugated polymeric tubing having at least three layers with at least two respective layers composed of polymeric materials dissimilar to one another
10/19/1995CA2187324A1 Process for forming pipe of improved construction
10/18/1995EP0677340A1 Method for the manufacture of internally enhanced welded tubing
10/18/1995CN2210311Y Composition stainless steel pipe
10/18/1995CN2210310Y Self-stress cement water supply pipe with dia. great than 800 mm
10/17/1995US5458156 Stainless steel multifold pipe
10/11/1995EP0676575A2 Fitting for connecting a two-layer tube to a sprinkler head
10/11/1995CN1109955A Method and device for making composite plastic pipeline with metallic frame
10/10/1995US5456965 Curved honeycomb structural bodies
10/10/1995US5456405 Dual bias weld for continuous coiled tubing
10/05/1995DE4410067A1 Through-flow heater or heat exchanger
10/04/1995CN2209261Y Plastic lining steel pipe
10/04/1995CN2209260Y Internal corrosion-resistant high molecular pipe
09/1995
09/28/1995DE4430038A1 Double-walled plastic tube with a low-grade foam interlayer
09/28/1995DE4409799A1 System and blank for mfg. tubular half=shell and gutters
09/27/1995EP0673966A1 Polypropylene composition with a high content of heavy mineral filler(s), suitable for coating metal pipes
09/27/1995EP0673762A2 Multilayered plastic pipe
09/27/1995EP0673753A1 Porous tube of fiber-reinforced plastic and method of manufacturing the same
09/27/1995EP0673752A1 Pipe or hollow profile having particular strength characteristics with a low weight, and method for making it
09/27/1995EP0673697A1 Method and apparatus for making compound pipes
09/27/1995EP0673484A1 Corrosion resistant connection for use with tubular members
09/26/1995US5452545 Impact support for a door of a motor vehicle
09/26/1995US5452507 Method for laying underwater pipelines in deep water
09/25/1995CA2145254A1 Multilayer plastic pipe
09/21/1995WO1995025241A1 Method for making upset ends on metal pipe and resulting product
09/20/1995CN1108743A Anti-corrossion metal tube and making method thereof
09/14/1995WO1995024579A1 Flexible metal pipes comprising a shrinkable polymer sheath
09/14/1995WO1995024578A1 Flexible metal pipes comprising a retractable polymer sheath
09/14/1995DE19508193A1 Tubular component e.g. for hydraulic or high pressure pipe
09/13/1995EP0671582A1 Cooling fluid pipe
09/13/1995EP0670774A1 Multiply polymer pipe
09/13/1995CN1108143A Tube fitting of a two-layer structure used for piping a sprinkler head
09/12/1995US5449320 Collapsible duct coupling
09/12/1995US5449024 Multilayer plastic pipe
09/12/1995CA2085635C Thin wall pipe for abrasive materials flowing under high pressure and method of fabricating the pipe
09/08/1995WO1995023685A1 Composite and tie layer therefor
09/06/1995EP0670451A2 Multi-pipe assembly
09/06/1995EP0670446A1 Reinforced concrete driving pipe
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