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 15 - Screw-threaded joints; Forms of screw-threads for such joints
Patents for F16L 15 - Screw-threaded joints; Forms of screw-threads for such joints (5,444)
10/2005
10/19/2005CN1683746A Screw joint for steel pipe
10/19/2005CN1683745A Screw joint for steel pipe
10/19/2005CN1683744A Threaded joint for steel pipe
10/13/2005WO2005095840A1 Double shoulder tool joint
10/13/2005US20050225086 Threaded attachment
10/13/2005US20050225083 Pipe system and method for its manufacture
10/13/2005DE102004015058A1 Pipe connector for corrugated pipes has collar on outside tensioned against stop face on inside of sleeve and with clamping ring, stop ring and sealing body to ensure permanent tight seal
10/12/2005CN2733143Y Reversed and regular buckle pipe coupling apparatus
10/12/2005CN1682058A Threaded tube joint
10/06/2005WO2005093309A1 Threaded tubular connection which is resistant to bending stresses
10/05/2005CN1678861A Tubular threaded joint which is impervious to the external environment
09/2005
09/29/2005US20050212290 Threaded tubular joint comprising sealing surfaces
09/28/2005EP1579143A1 Pneumatic joint
09/28/2005CN2729489Y U-spased pipeline joint
09/28/2005CN1675489A Fluid connector
09/20/2005US6945569 Enhanced durability hammer union
09/20/2005US6945566 High-pressure connection device
09/15/2005WO2005085695A1 A thin wall stainless-steel pipe with thread ends and the method of making the same
09/15/2005WO2005085694A1 Pipe insert
09/15/2005WO2004023014B1 Threaded connection for expandable tubulars
09/15/2005US20050200127 Joining Tubular Members
09/15/2005CA2558528A1 Adjustable length pipe insert
09/14/2005CN1668940A Marking of pipe joints
09/09/2005CA2500029A1 Joining tubular members
09/07/2005EP1570200A1 Method for producing a threaded tubular connection sealed to the outside
09/07/2005CN1666056A Reinforced tubular threaded joint for improved sealing after plastic expansion
09/07/2005CN1666055A Fixation device for flexible tension elements
09/01/2005WO2005080644A2 Method of using intrinsically conductive polymers with inherent lubricating properties, and a composition having an intrinsically conductive polymer, for protecting metal surfaces from galling and corrosion
09/01/2005US20050189147 Drill stem connection
08/2005
08/31/2005EP1461561B1 Threaded tubular joint comprising sealing surfaces
08/31/2005CN2722011Y Flexible metal pipe as outlet
08/25/2005WO2005045262A3 Fastener pre-stressing joint
08/24/2005EP1565683A1 Improved casing joints
08/24/2005CN1659400A Coupling assembly and method
08/23/2005US6933264 Threaded component for seizure-resistant tubular threaded joint
08/23/2005CA2292318C Pipe joint
08/18/2005WO2005075877A1 Thread protector for tubular members
08/18/2005WO2005075873A1 Screw joint for oil well pipe, and method of producing the same
08/18/2005US20050180840 Fluid connector
08/17/2005EP1564413A1 Accumulator using internal and external threads
08/17/2005CN1656334A 钢管用螺纹接头 A threaded joint for steel pipes
08/17/2005CN1215277C Fatigue-resistant threaded bevelled tubular element
08/11/2005US20050176592 Method of using intrinsically conductive polymers with inherent lubricating properties, and a composition having an intrinsically conductive polymer, for protecting metal surfaces from galling and corrosion
08/11/2005US20050173919 Coupling assembly and method
08/11/2005US20050172472 Method for making a sealed tubular joint with plastic expansion
08/10/2005EP1561062A1 External refacing indicator for a tool joint
08/10/2005CN1653290A Threaded pipe joint
08/10/2005CN1653289A Threaded pipe joint
08/10/2005CN1651712A Slim type oil well pipe fitting
08/09/2005CA2152767C Helical stress relief groove apparatus and method for subterranean well drill pipe assemblies
08/04/2005US20050166986 Thread protector for tubular members
08/02/2005CA2341609C Threaded connection of two metal tubes with high tightening torque
07/2005
07/28/2005WO2005008116A3 System and method for coupling conduit
07/28/2005WO2002090809A3 Remotely pretensioned threaded tubular connections
07/28/2005US20050161259 Unsymmetrical profile threads for use in a positive displacement motor housing
07/27/2005EP1556645A2 Threaded pipe connection with cylindrical metal-to-metal, high pressure containment seal
07/27/2005EP1556644A1 Threaded pipe connection
07/27/2005CN2713276Y Pipeline tee with external thread
07/27/2005CN2713271Y Butted sealing interface for pipeline
07/27/2005CN2713120Y Hydraulic sealed anti-pollution pipe string
07/26/2005US6921110 Threaded joint for tubes
07/26/2005CA2346552C Integral threaded assembly of two metal tubes
07/26/2005CA2185251C Threaded joint for tubes
07/20/2005EP1554518A1 Threaded pipe with surface treatment
07/20/2005CN1211600C Pipe integral threaded joint
07/14/2005WO2005064219A1 Method of producing a hermetic tubular joint comprising local and initial added thickness(es), by means of plastic expansion
07/14/2005WO2005064218A1 Method of assembling two hermetic threaded tubular joints comprising a local and initial thinned thickness, by means of plastic expansion
07/14/2005WO2005064217A1 Production by plastic expansion of a sealed tubular joint with inclined abutting surface(s)
07/14/2005WO2002090810A3 Coupling system
07/14/2005US20050150653 Corrosion-Resistant Downhole Transmission System
07/13/2005CN2709758Y Screw-thread joint structure of expansion pipe
07/13/2005CN2709757Y Steel pipe joint with composite protection coating
07/13/2005CN1639497A Pipe system and method for its manufacture
07/13/2005CN1639496A Premium tubular threaded joint comprising at least a threaded element with end lip
07/13/2005CN1639494A Wedgethread pipe connection
07/13/2005CN1210513C Method of producing connection hoop for petroleum steel pipe
07/12/2005CA2122971C Quick joint for rapid, tight-seal connection of pipes, particularly suitable for petroleum pipes
07/07/2005US20050147760 can uniformly drop a treatment liquid on a pipe surface, with a smaller decrease in temperature compared to a method in which a treatment liquid is sprayed from nozzles, and can eliminate variations in the decrease in temperature of treatment liquid due to variations in the diameter of pipes
07/07/2005US20050145406 Data Transmission System for a Downhole Component
07/06/2005EP1550823A1 Method and device for surface treatment of metal tube
07/06/2005EP1549872A1 Threaded pipe joint
07/05/2005CA2334926C Drill rod coupling
06/2005
06/30/2005WO2005059422A1 Improvement of resistance to fatigue of a threaded tubular connection
06/29/2005EP1548346A1 Screw joint for steel pipe
06/23/2005WO2005040657A3 A tubular component provided with mutually oriented threaded elements, and a method for producing it
06/23/2005US20050133223 Expandable tubular connection
06/21/2005US6908122 Hose coupling device
06/21/2005US6908121 Locking arrangement for a threaded connector
06/15/2005EP1540227A1 Threaded tube joint
06/15/2005EP1540226A1 A nut and tail assembly and method for the production thereof said tail including a rigid outer sleeve
06/15/2005EP1540128A2 Interposed joint sealing layer method of forming a wellbore casing
06/14/2005US6905150 Threaded pipe joint
06/14/2005US6905149 Pressure relieved thread connection
06/08/2005EP1295060B9 Tubular threaded joint capable of being subjected to diametral expansion
06/08/2005CN1205432C Threaded tubular element for fatigue resistant threaded tubular joint and resulting threaded tubular joint
06/02/2005US20050118364 Tubular member having an anti-galling coating
06/02/2005US20050116468 Threaded connectors for axial alignment of tubular components, and method of installing pipe sections employing such connectors
06/01/2005EP1534985A2 Fluid connector
06/01/2005CN1623041A Internal thread and accumulator using same
05/2005
05/31/2005US6899356 Tubular connection floating shoulder ring
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