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)
09/2003
09/03/2003EP1340936A2 Resin coating pipe
09/03/2003EP1339890A1 Cylindrical tube for industrial chemical installations
09/03/2003EP1339787A2 Tubes obtained from a propylene polymer composition
09/03/2003CN2570572Y Ceiling type purifying air-duct
09/03/2003CN2570571Y Nanometer antibiotic composite metal pipe
09/03/2003CN2570570Y Corrosion-resistant steel-plastics combined pipe
09/03/2003CN2570569Y Multiple tube with internal anticorrosive coating lining
09/03/2003CN2570568Y Metal threaded pipe
09/02/2003US6612342 Flexible pipe element
08/2003
08/28/2003US20030163082 Lumen weld
08/28/2003US20030160452 Coupling ring for ventilation ducts, and method of connecting ventilation ducts
08/28/2003US20030160447 Double containment pipe system
08/28/2003DE20220500U1 IC engine exhaust comprises inliner and jacket held apart by spacer made of braided wire which is held in annular groove made by bending third pipe whose downstream end is fixed to liner or jacket
08/27/2003EP1337777A1 Multilayer pipe for transporting cooling liquid
08/27/2003CN2568914Y Refractory steady-state composite tube
08/27/2003CN2568913Y Polyethylene foamed plastic coated insulating copper tube
08/27/2003CN2568912Y Nano structure metal web-ceramic comsite lining metal tube
08/27/2003CN2568770Y Sty warning tube
08/27/2003CN2568769Y Diagonal warning sheathing tube
08/27/2003CN1439085A Method for inhibiting external corrosion on insulated pipeline
08/27/2003CN1438393A Water-rotating type water-discharging pipe
08/27/2003CN1119427C Petroleum and natural gas delivering pipe and its production method
08/27/2003CN1119425C Centrifugal cast high-antiwear pipe production method
08/21/2003US20030157321 Plastic pipes and fittings for home and industrial use
08/21/2003US20030157286 Singlelayer and multilayer polyolefin foam pipes
08/21/2003US20030154943 Flow path structure of hollow tube
08/20/2003EP1240452B1 Thin-walled cylinder made from fibre-reinforced plastics material
08/20/2003CN2567422Y Composited tube of Co-polypropylene plastic and metal tube
08/20/2003CN2567421Y Multitayer metal and high polymer material composited tube
08/20/2003CN1437619A Polyethylene resin and pipe and joint using the same
08/20/2003CN1437291A Pipe for cable laying and producing method thereof
08/20/2003CN1436946A Reinforced polyethylene pipe
08/20/2003CN1436945A Pressure synthetic resin pipe
08/20/2003CN1118655C Dual-walled exhaust tube assembly for vacuum pump and restructuring method thereof
08/20/2003CN1118364C Rotary hollow body and producing method thereof
08/19/2003CA2300634C Polyamide-based antistatic tube for gasoline
08/14/2003US20030153670 Reinforced polyamide with improved thermal ageing properties
08/14/2003DE20308221U1 Combination pipe, with outer and inner pipes forming the main opening through it, has additional conduit openings in the pipe wall to carry cables or fresh or waste water and the like
08/13/2003EP1203788B1 Semiconductive polyvinylidene fluoride resin composition
08/13/2003EP0868278B1 Method for producing homogeneous material with an extruder, and extruder
08/13/2003CN2566087Y Extrusion PVC polygon porous pipe
08/13/2003CN2566086Y Middle cellular aluminium-cladding plastic pipe
08/13/2003CN2566085Y Tripolypropylene lining copper reinforced composite pipe
08/12/2003US6605171 Method for making hollow solid generated by rotation
08/12/2003US6604552 Metal-plastic multilayer pipe having form stability for plumbing and hydronic heating
08/12/2003US6604550 Composite spoolable tube
08/12/2003CA2275349C Plastic based multilayer structure and tube with multilayer structure
08/07/2003WO2003064908A1 Pipe for pressurized automobile fluids
08/07/2003US20030148054 Resin coating pipe and manufacturing method thereof, and fuel tank with resin coating pipe
08/07/2003DE20306354U1 Building element for guiding a stream of air, airborne moisture, fresh water and/or waste water is coated at least over certain sections with an antimicrobial material
08/07/2003DE10221570C1 Compound sleeve for cladding pipeline has metal tube acting as inner blocking layer enclosed by outer plastics mantle
08/06/2003EP1333211A1 Multilayer pipe
08/06/2003EP1333210A1 Composite pipe with a PTFE inner layer and a fibre-reinforced plastic outer layer
08/06/2003EP1332040A1 Bonding system for pipe insulation
08/06/2003CN1434768A Multi-layered pipe
08/06/2003CN1433883A Conductive multilayer gasoline conveying pipe based on polymeric amide and EVOH
08/05/2003CA2264853C Modular filtration system
07/2003
07/31/2003WO2003062697A1 Interlocked strip structure
07/31/2003US20030140978 Heterogeneous hybrid intermediate; perfluoroalkoxy-polytetrafluoroethylene (pfa) welded to interior surface; glass or carbon fiber reinforcement
07/31/2003CA2472781A1 Interlocked strip structure
07/30/2003CN1433343A Device and method for manufacturing soft metal tube
07/30/2003CN1432754A Thermally drawn adhered composite aluminium-plastic pipe and its production process
07/30/2003CN1432753A Drinking water pipeline of efficient antiseptic composite material
07/29/2003CA2075338C Multiple-duct tube for centrifugal blood separators and method of making the same
07/25/2003CA2417044A1 Composite pipe having a ptfe inner layer and a covering layer of a fibre-reinforced plastics material
07/24/2003WO2003060412A2 Welded multi-chamber tube
07/24/2003DE10216175C1 Plastic vessel or pipe has internal and external casings bonded by friction-welding their differing plastic materials together in single operation
07/23/2003EP1328748A1 Double-sheath pipe for transporting fluids, provided with a device for limiting propagation of an outer tube and method for limiting propagation
07/23/2003EP1328580A1 Polyethylene pipe resins and production thereof
07/23/2003EP1328401A1 Polyethylene pipe
07/23/2003CN2562023Y Double layer connecting pipe fitting with saft inner lining
07/23/2003CN2562022Y Multilayer thermal insulative GFRP composite pipelines
07/23/2003CN1431417A Carbon fiber graphite tube with high strength, high transmit heat and its production method
07/22/2003CA2299644C Fiber-reinforced composite wrapped steel liner
07/17/2003US20030131936 Surface in contact with the joint is a layer of a copolymerized nylon covered by a layer of a different nylon resin
07/16/2003EP1327518A2 Nylon resin multi-layer pipe and method for adhering same
07/16/2003CN2560805Y Composite glass wool ventilating duct
07/16/2003CN2560705Y Anti-theft pole wire warning casing pipe
07/16/2003CN2560704Y Bellows grain store house
07/16/2003CN1430006A Nanometer toughened and reinforced plastic pipe material and pipe fitting and its production method
07/16/2003CN1114781C Corrosion-and fire-resistant pipe system
07/16/2003CN1114714C Method of producing super-low carbon two-phase stainless steel centrifugal casting cold-drawn seamless tube
07/10/2003WO2003055670A1 Composite glass tube
07/10/2003US20030130421 Covering layer of resin composite comprising 10-80 weight percent polyphenylene ether resin, 10-80 weight percent polystyrene polymer possessing syndiotactic structure, 10-80 weight percent polystyrene resin; chemical, impact resistance
07/10/2003US20030127147 Reinforced permeation-proof plastic pipe
07/09/2003EP1325255A2 Preformed channel for piping system
07/09/2003EP0857272B1 Fire resistant pipe
07/09/2003EP0804699B1 Plastics pipe
07/09/2003CN2559856Y Reinforced multilayer winding coating steel-plastic composite pipe
07/09/2003CN2559855Y Reinforced composite pipe
07/09/2003CN1113742C Antistatic pipe taking polyamide as base for transport gasoline
07/08/2003US6589617 Metal tubing coated with multiple layers of polymeric materials
07/08/2003CA2156398C Drill pipe
07/03/2003WO2003013826B1 Manufacturing process and apparatus for making a helical rib tube
07/03/2003US20030124288 Polyamide- and EVOH-based conducting multilayer tube for transporting petrol
07/03/2003US20030121560 Resinous tube
07/03/2003DE20305112U1 Plastic tube with wall comprising different coloured layers, has outer layer with specific thickness
07/02/2003EP0879142B1 Multilayer plastic tubing
07/01/2003US6586110 Contoured metal structural members and methods for making the same
07/01/2003US6584783 Fluid transport
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