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)
06/1998
06/16/1998US5765600 Pipe designs using composite materials
06/16/1998US5765598 Pipe construction
06/16/1998US5765596 Tube containment system
06/12/1998CA2224669A1 A method and apparatus for using recycled plastic material, and a plastic product made by an extruder
06/11/1998WO1998025063A1 Flexible pipe with internal gasproof undulating metal tube
06/11/1998CA2245738A1 Flexible pipe with internal gasproof undulating metal tube
06/10/1998EP0779855B1 Method and device for producing pipes or tubular moulded bodies from polymer concrete
06/10/1998EP0673484B1 Corrosion resistant connection for use with tubular members
06/10/1998DE19707518C1 Thermoplastic polymeric corrugated pipe for liquid
06/10/1998CN2283769Y Permeable hard plastic pipe
06/10/1998CN1184223A Large-calibred flanged pipe made of plastic and plastic-steel and its manufacture
06/10/1998CA2222357A1 Plastic tube with improved acoustic properties, and process for manufacturing such a tube
06/09/1998US5763034 Transferring an alcohol mixed fuel
06/09/1998US5761870 Connecting structure of concrete blocks and connecting method therefor
06/04/1998WO1998023879A2 Component kit for a chain link adaptable to different uses
06/04/1998DE19648967A1 Bausatz für ein an mehrere Anwendungsfälle anpaßbares Kettenglied Kit for a adaptable to multiple applications link
06/03/1998EP0845627A1 Fuel conducting pipe
06/03/1998CN2283170Y Internal stainless metal composite pipe
06/03/1998CN2283169Y Concealed drain pipe specially adapted for tunnel bow wall
06/02/1998US5759461 Method of forming a multi-layer plastic pipe for conducting fluids
06/02/1998US5759329 Continuously extruding the first thermoplastic fluoropolymer, chemically activating the outer surface of fluoropolymer by plasma treatment, continuously extruding a second layer of non-fluoropolymer on first layer to form chemical bonding
06/02/1998US5758695 Hydraulically efficient ribbed pipe
06/02/1998US5758694 Helically wound reinforcing fiber that is bonded together with a thermoset polymer resin
05/1998
05/28/1998DE19549471C2 Plastic pipe with one or several layers differing in thickness along length
05/27/1998EP0844429A1 Low-permeability sheath and its use in high pressure conduits
05/27/1998EP0844073A1 A tubular product and an extrusion apparatus and method
05/27/1998CN1183063A Process for sheathing a plastic pipe with a metal sheath
05/26/1998US5755266 Laminated pipe for offshore oil production, including sequential layers of reinforcing fibers and fiber mat in cured matrix of plastic resin, on thermoplastic liner tube
05/20/1998CN2282105Y 钢塑复合管 Plastic composite pipe
05/19/1998US5753324 Fiber-reinforced composite cylindrical form
05/19/1998US5753159 Injection spin molding process
05/14/1998DE19727907A1 Filling hollow component chambers with expandable carbon powder and structural member with expanded carbon
05/13/1998EP0754898B1 Coolant hose
05/13/1998CN1181305A Plastic band for production of Helical wound pipes
05/12/1998US5749985 Process for optimizing multilayered tubes made of composite materials and tubes obtained through the process
05/12/1998US5749398 Solidifiable flexible tube
05/12/1998US5749192 Corner clips for horizonal framing
05/07/1998WO1998018619A1 Polyolefin-covered steel pipe possessing excellent resistances to thermally oxidative deterioration and weathering and process for manufacturing the same
05/07/1998WO1998000662A3 Improved vehicle including freeze stress resistant fluid conducting apparatuses
05/07/1998DE19549470C2 Plastic pipe with one or several layers differing in thickness along length
05/06/1998CN2280819Y Special-shaped opening decorative pipe
05/06/1998CN1180615A Plastic aluminium press fit pipe and producing method thereof
05/05/1998US5746863 Method of making wood tubing
04/1998
04/30/1998WO1998017938A1 Piece of piping through which waste gas flows of a system of pipes carrying waste gases, and this system of pipes
04/30/1998CA2269714A1 Piece of piping through which waste gas flows of a system of pipes carrying waste gases, and this system of pipes
04/29/1998EP0627027B1 Method and apparatus for manufacturing and laying out an umbilical
04/29/1998CN2280190Y Composition pipeline contg. steel and ceramics
04/28/1998US5743304 Multi-layer fuel and vapor tube
04/28/1998US5743301 Metal pipe having upset ends
04/28/1998US5743299 Dual containment pipe rehabilitation system and method of installation
04/23/1998WO1998016770A1 Flexible conduit
04/22/1998EP0836692A1 Steel pipe with integrally formed liner and method of fabricating the same
04/22/1998EP0714487B1 A thin-wall polytetrafluoroethylene tube
04/15/1998EP0836042A2 Layered plastic tube with segmented barrier layer
04/15/1998EP0835177A1 Extrusion apparatus and method for orienting plastic material by using an extrusion apparatus
04/15/1998CN2278826Y Ribbed pressure-resistant plastic pipe and pipe connector
04/15/1998CN1178878A Composite steel pipe with ceramic resin lining and its producing method
04/15/1998CN1178877A Method for producing scaly glass fibre reinforced plastic tube
04/09/1998WO1998014323A1 Metal/synthetic resin laminate and synthetic resin-clad metallic pipe
04/09/1998DE19647555C1 Method for increasing loading pressure of metal pipe for fuel injection in diesel engine
04/08/1998CN2278139Y Bent steel pipe with ceramic liner made by centrifugal thermit method
04/07/1998US5735350 Methods and systems for subterranean multilateral well drilling and completion
03/1998
03/26/1998WO1998012464A1 Composite pipe structure
03/26/1998WO1998012463A1 Connector system for use in ultra-high vacuum systems
03/26/1998WO1998012046A1 Multilayer plastic tubing
03/24/1998US5731557 Fluid guiding element for blocking and damping noise propagating in main passages
03/24/1998US5730189 Internally and externally enhanced wielded tube
03/24/1998US5730188 Flexible conduit
03/19/1998WO1998011375A1 Unit piping method and stainless steel therefor
03/18/1998EP0829674A1 Sound insulating lining for waste pipes and pipe fittings made of plastics
03/18/1998EP0828576A1 Method of casting a multilayered alloy tube
03/17/1998US5727598 Pipe wall segment and pipe having sidewall
03/12/1998WO1998009751A1 USE OF A Ni-BASE ALLOY FOR COMPOUND TUBES FOR COMBUSTION PLANTS
03/12/1998WO1998009718A1 Modular filtration system
03/10/1998US5725920 Fiber-reinforced resin pipe having improved impact resistance
03/10/1998US5725028 Trunk line
03/05/1998WO1998009042A1 Tubular and stick-shaped fiber reinforced structures
03/05/1998DE19633133C1 Tough, dimensionally-stable multilayer tubing
03/04/1998EP0826123A1 Piping
03/04/1998EP0826122A1 Pipeline made from extruded plastic composite piping with a sleeve connection
03/04/1998CN1174954A Small pipe track fixing structure
03/03/1998US5722698 Extension coupling for distribution devices for gaseous fluids and/or liquids
03/03/1998US5722358 For an intake manifold of an internal combustion engine
02/1998
02/27/1998CA2184119A1 Machine and method for making pipe made of discarded vehicle tires
02/25/1998CN1174602A Pipe assembly
02/25/1998CN1174579A Protective sleeve with warp spacers
02/24/1998US5721031 High strength structural materials; tensile strength, modulus
02/24/1998US5721030 For fishing rods and golf club shafts comprising multilayer carbon fibers; flexibility; tensile strength
02/18/1998EP0823867A1 Process for sheathing a plastic pipe with a metal sheath
02/18/1998CN2274708Y Metal flexible pipe
02/18/1998CN1037467C Pipe construction
02/17/1998US5718952 Hollow structural member
02/12/1998DE19643950C1 Bonding of plastics plates to concrete walls
02/11/1998EP0823580A2 A multiple nested pipe arrangement and method of assembly
02/11/1998EP0823031A1 Tube of composite material
02/11/1998EP0625251B1 Pipe construction
02/10/1998US5716684 Polyamide outer layer and inner layer of polyvinylidine fluoride are tightly bonded together by an intermediate adhesion promoting layer of polyvinylidine fluoride/polyamide blend; dimensional stability
02/10/1998US5716077 Fire resistant sprinkler coupling
02/10/1998US5715895 Downhole drilling tool cooling system
02/10/1998US5715587 Method of assembling double-containment piping assemblies
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