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)
06/2003
06/26/2003US20030116213 Transitional telescoping plenum apparatus
06/26/2003DE20301781U1 Rolled pipe is produced from surface-treated metal strip material cut to size, and metal strip material on each two opposite longitudinal sides has hook section, with two hook sections hooked together and rolled together flat
06/25/2003EP1321703A2 Plastics pipes
06/25/2003EP1321702A1 Reinforced permeation-proof plastic pipe
06/25/2003EP1320703A1 Arrangement for pipelines
06/25/2003EP0979370B1 Pipe for circulating gaseous fluids in motor vehicles
06/25/2003CN2557778Y Composite thermo-insulation air-condition pipe
06/25/2003CN1426531A Apparatus and method for fabricating coriolis flowmeter formed primarily of plastic
06/25/2003CN1425865A Specific ceramic lining composite pipe, pipe fitting and their producing method
06/24/2003US6581644 Composite pipe structure having improved containment and axial strength
06/20/2003CA2414803A1 Reinforced permeation-proof plastic pipe
06/18/2003DE20301322U1 Metal tube with smooth-polished interior surface for medical or laboratory purposes and polishing tool.
06/18/2003CN1424527A UHMWPE winded composite large-diameter tubing
06/18/2003CN1424526A Water supplying and draining pipes and production thereof
06/17/2003US6579922 Polyolefins and uses thereof
06/17/2003US6579170 Rigid foam air duct system
06/17/2003CA2233295C Composite spoolable tube
06/12/2003WO2003048622A1 Plastic tube, especially a pneumatic tube
06/12/2003WO2003048621A1 Reinforced submarine pipeline and assembly of two coaxial pipelines comprising same
06/12/2003WO2002023074A9 Preformed channel for piping system
06/12/2003US20030106325 Cryogenic fluid transfer tube
06/11/2003EP0977786B1 Premium pipe resins
06/11/2003CN1111262C Compound steel pipe and pipe elements with liner of glass scales and engineering plastic and making method thereof
06/11/2003CN1111116C Apparatus for producing multiple channel duct assembly and method thereof
06/10/2003US6576312 Laminate; inner layer of a block copolymer of polybutylene naphthalate and a polyester or a polyether and and outer layer formed of a polyamide or a polyolefin;
06/10/2003US6575241 Downhole communication apparatus
06/10/2003US6575198 Method of connecting two elongated portions of metallic plate, method of manufacturing exhaust pipe of two-passage construction, and exhaust pipe of two-passage construction
06/10/2003CA2234031C Dual-walled exhaust tube for vacuum pump
06/05/2003US20030103811 Control cable
06/04/2003EP1316751A2 Multilayer pipe
06/04/2003EP1316384A2 Method of manufacturing an exhaust pipe of two-passage construction and exhaust pipe of two-passage construction
06/04/2003EP1220969B1 Pipe system for device filtering and pumping water in a swimming pool
06/04/2003CN1421633A Composite pipe material and its production process
06/04/2003CN1110352C Modular filtration system
05/2003
05/30/2003WO2003044412A1 Toneable conduit and method of preparing same
05/29/2003US20030100677 Heat resistant pipe and method of manufacture thereof
05/28/2003EP1314758A1 Multilayer tube made of polyamides and EVOH for conveying fuel
05/28/2003EP1313978A1 Locatable magnetized polyethylene gas pipe distribution system
05/28/2003CN2553222Y Butt-joint welding PP-R aluminium plastic composite pipe
05/28/2003CN2553221Y Multi-layer pipe pipeline
05/28/2003CN1420813A Method of producing centrifugally cast, glass fiber reinforced plastic tubes
05/28/2003CN1419976A Metal pipe and method for mfg. same
05/28/2003CN1109836C Cast formed part
05/27/2003US6569948 Polyethylene pipe method
05/27/2003US6568431 Double-shell pipeline exhibiting improved buckling strength
05/22/2003WO2003042588A2 Pipe insert and pipe assembly formed therewith
05/22/2003WO2003042260A1 Pressure pipes
05/22/2003WO2003013826A3 Manufacturing process and apparatus for making a helical rib tube
05/22/2003US20030096901 Design stress, processability, rapid crack propagation (RCP) resistance, design stress rating, impact strength, and slow crack propagation resistance
05/22/2003US20030094298 Toneable conduit and method of preparing same
05/22/2003US20030094297 Toneable conduit and method of preparing same
05/21/2003EP1312623A1 Pressure pipes
05/21/2003EP1311382A2 Contoured composite structural members and methods for making the same
05/21/2003CN2551842Y Metal pipe
05/21/2003CN1109212C High-molecular composite stretched and oriented plastic pipe with hollow reinforced structure in wall
05/20/2003US6565430 Pliable air duct with dust and condensation repellency
05/20/2003US6565126 Multipurpose group, and industrial robot equipped therewith
05/20/2003US6564831 Entruded multitubular device
05/20/2003CA2203640C Multipurpose composite tubing
05/15/2003WO2003039849A1 Spoolable composite tubing with a catalytically cured matrix
05/15/2003WO2002057828A3 Flame retardant tubing for a bundle
05/15/2003US20030091392 Self-flushing gutter pipe
05/15/2003US20030089414 Metal tube and its production method
05/15/2003US20030089413 Multi-layered pipe
05/15/2003CA2465958A1 Spoolable composite tubing with a catalytically cured matrix
05/14/2003EP1310526A1 Multilayer plastic pipe for conveying drinking water and manufacturing process
05/14/2003EP1309812A1 Multilayer plastic tube for fluids used in motor vehicles
05/14/2003EP1309652A1 White oil extrusion lubricant
05/14/2003CN2550615Y Steel-plastic composite pipe with protective device at end
05/14/2003CN2550614Y Directly buried type steam pipeline heat insulation pipe
05/14/2003CN1417507A Production process of composite plastic-steel pipe with anti-corrosive coating
05/13/2003US6561229 Electrostatic charge neutralizing fume duct with continuous carbon fiber
05/13/2003US6561228 Helically wound lock seam tube
05/13/2003CA2156977C Improved methods and systems for subterranean multilateral well drilling and completion
05/08/2003WO2003037981A1 Pipe systems of polypropylene compositions
05/08/2003US20030087052 Spoolable composite tubing with a catalytically cured matrix
05/08/2003US20030084948 Pipe member
05/08/2003CA2463706A1 Pipe systems of polypropylene compositions
05/07/2003EP1308221A2 Metal tube and its production method
05/07/2003CN2549296Y Stainless steel pipe wound with hollow plastic pipes
05/07/2003CN2549295Y Horizontal operation of pneumatic hammer through prestressed concrete culvert pipe
05/07/2003CN1415885A Stainless steel-plastic somposite tubular product
05/07/2003CN1415884A Fire prevention and smoke evacuation air pipe made from concrete of chlorine, oxygen and magnesium
05/06/2003US6557343 Partition wall arrangement for exhaust devices
05/06/2003CA2124089C Tube
05/02/2003EP1306600A1 Stainless steel oil feeding pipe
05/02/2003EP1306541A1 Non-woven thermoformed intake pipe with double flexion
05/02/2003EP1306203A1 Polyamide or polyester- and aluminium-based multilayer tube
05/02/2003EP0883769B1 Method of preparing a multilayer pipe
05/01/2003WO2003035384A1 Polyamide or polyester- and aluminium multilayer tube for fluid transfer
05/01/2003US20030082336 Woven composite fabric
05/01/2003US20030079789 Preformed channel for piping system
05/01/2003US20030079788 Preformed channel for piping system
05/01/2003CA2465243A1 Polyamide or polyester- and aluminium multilayer tube for fluid transfer
04/2003
04/30/2003CN2547989Y Thermowelded metal-plastic multiple-unit tube
04/30/2003CN2547988Y Bimetallic multiple-unit tube
04/30/2003CN1414277A Screw type corrugated plastic pipe material and its manufacturing method
04/30/2003CN1107123C Heat resistant Austenitic stainless steel
04/29/2003US6555243 Hoses, pipes, containers
04/29/2003CA2282358C Composite spoolable tube
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