Patents for F16L 15 - Screw-threaded joints; Forms of screw-threads for such joints (5,444)
12/2006
12/27/2006CN1884893A Threaded coupling for receptacles, such as expansion vessels, tanks and the like
12/21/2006WO2005120196A3 Disassembleable washer device for down-hole drills
12/20/2006EP1490579B1 Apparatus and method to expand casing
12/14/2006US20060279078 Joining Tubular Members
12/13/2006CN2846954Y Joint of braking oil pipe end
12/13/2006CN2846953Y Novel water supply pipe
12/13/2006CN1289847C Tubular threaded joint capable of being subjected to diametral expansion
12/12/2006US7146704 Method for coupling connectors using an anti-rotation device
12/12/2006CA2240618C Pipe joint
12/07/2006US20060273586 Coupled connection with an externally supported pin nose seal
12/06/2006EP1728018A1 Threaded tubular connection which is resistant to bending stresses
12/06/2006CN1875215A Fastener pre-stressing joint
12/06/2006CN1288378C Fatigue-resistant thread component for tubular thread joint and tubular thread joint with same
12/05/2006US7144048 Composite marine riser
12/05/2006CA2428171C Wired pipe joint with current-loop inductive couplers
11/2006
11/30/2006WO2006125241A1 Pipe connection
11/29/2006EP1726861A1 Screw joint for oil well pipe, and method of producing the same
11/23/2006WO2006124385A1 Novel treating method and design method for tubular connections
11/23/2006US20060261595 Threaded tubular connection with progressive axial thread interference
11/23/2006CA2608170A1 Novel treating method and design method for tubular connections
11/22/2006EP1723361A1 Pipe insert
11/22/2006EP1723270A2 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
11/15/2006CN2837648Y Pipeline connector and corresponding combined structure thereof
11/15/2006CN1863983A A tubular component provided with mutually oriented threaded elements, and a method for producing it
11/15/2006CN1284946C Threaded joint for steel pipe with excellent seizure and corrosion resistances
11/15/2006CN1284945C Threaded pipe joint
11/14/2006US7134698 Sealing device for a high-pressure sealing of line junctions
11/12/2006CA2546748A1 Slip joint double y apparatus and method
11/09/2006WO2006117331A1 Drill rod
11/09/2006DE202006013841U1 Connector for corrugated pipes has base with sloping upper surface, union nut being screwed on to connector which presses press-fitting with corresponding lower surface down so that lowest corrugation of pipe is flattened and held in place
11/09/2006CA2605788A1 Drill rod
11/04/2006CA2543186A1 Liquid tight fitting for conduit
11/01/2006CN2833303Y Double fused pipe fitting for metal plastic composite pipe
11/01/2006CN1282843C Pipe joint
10/2006
10/31/2006US7128102 Drop tube segments adapted for use with a liquid reservoir
10/26/2006WO2006113760A2 Threaded connector with interlock
10/26/2006WO2006112301A1 Assembly of male and female members
10/26/2006US20060237966 Screw connection element and protective sleeve therefor
10/26/2006CA2605431A1 Threaded connector with interlock
10/25/2006EP1101057B1 Multi-start wedge thread for tubular connection
10/25/2006CN1853030A Locking device for built pipe connections
10/25/2006CN1851307A Pneumatic brake pipe, and its manufacturing method
10/24/2006US7125053 Pre-expanded connector for expandable downhole tubulars
10/19/2006WO2005108848A3 Improved coupling for drilling-with-casing operations
10/18/2006EP1711735A1 Thread protector for tubular members
10/18/2006CN1280386C Lubricating coating composition suitable for lubrication of a threaded joint
10/11/2006CN2826117Y Connecting tube adapter structure for indoor unit and outdoor unit of air conditioner
10/05/2006WO2006104251A1 Threaded joint for steel pipes
10/05/2006US20060222475 Fast make-up fatigue resistant rotary shouldered connection
10/04/2006EP1706583A1 High-strength sealed connection for expandable tubulars
10/03/2006US7116199 Inductive coupler for downhole components and method for making same
10/03/2006US7114752 Slip coupling for pipe
09/2006
09/28/2006US20060214328 Method of manufacture of a nut and tail assembly
09/27/2006EP1705415A2 Fatigue resistant rotary shouldered connection and method
09/27/2006EP1705265A1 Surface adjustment treatment prior to chemical treatment of steel product
09/27/2006CN2821354Y Simple pipeline connecting structure
09/27/2006CN1839277A 接头 Connector
09/22/2006CA2540054A1 Fatigue resistant rotary shouldered connection and method
09/21/2006WO2006075774A8 Threaded joint for steel pipes
09/21/2006DE102005012705A1 System for connecting water supply pipe to mixer tap comprises threaded section on pipe which fits into threaded bore in tap, collar below thread on pipe forming seal with bore and thread being broken up by unthreaded axial sections
09/19/2006US7108292 Hose coupler
09/19/2006US7108072 Lubrication and self-cleaning system for expansion mandrel
09/14/2006DE202006009436U1 Connecting system for polypropylene or polyethylene pipes used in trenchless installation of pipelines comprises externally threaded conical end section on one pipe which fits into threaded socket on other pipe
09/12/2006US7104345 Downhole rotatable-shaft connector assembly and method
09/12/2006CA2134529C Pipe joint with two tubular joint members
09/07/2006US20060197343 Threaded joint for steel pipes
09/07/2006US20060197342 Connector for bridging a control stop and a flush valve
09/06/2006CN1273718C Threaded spacer and its forming process
09/05/2006US7100946 Bulkhead assembly for use in pipe-in-pipe systems
08/2006
08/30/2006CN1826489A Screw thread connecting component and its protection cover
08/30/2006CN1826276A Novel system for the gasket sealing of screwed connections in pipes for the conveyance of fluids and applicator device for same
08/30/2006CN1272521C Tubular threaded joint with reinforced stop
08/29/2006US7098767 Element for use in an inductive coupler for downhole drilling components
08/24/2006WO2006087361A1 Threaded joint for pipes provided with seal
08/24/2006WO2006023218A3 Rotating pressure control head
08/23/2006EP1692424A1 Improvement of resistance to fatigue of a threaded tubular connection
08/23/2006EP1692423A1 Method of producing a hermetic tubular joint comprising local and initial added thickness(es), by means of plastic expansion
08/23/2006EP1692422A1 Method of assembling two hermetic threaded tubular joints comprising a local and initial added thickness, by means of plastic expansion
08/23/2006EP1692421A1 Production by plastic expansion of a sealed tubular joint with inclined abutting surface(s)
08/23/2006CN1271309C Pipe joint, method of connecting pipe joint, pipe-shape drill pipe column and method for drilling borehole
08/22/2006CA2216459C Rod joint
08/17/2006WO2006085066A1 Sealed tube coupling for optical fiber tubes
08/17/2006US20060181082 Bullthread
08/16/2006EP1690030A2 Fastener pre-stressing joint
08/16/2006EP1690027A2 Tubular connection with slotted threads
08/16/2006CN2806935Y Thin-walled stainless steel pipe joint
08/09/2006CN2804545Y Metal hose for gas
08/09/2006CN2804542Y Soft joint of fan oil
08/08/2006US7086475 Method of inserting a tubular member into a wellbore
08/08/2006CA2419198C Pipe joint and coupling
08/03/2006DE202006008916U1 Insertion connection for metal pipes with seal adapters has support ring in recess in adapter in addition to sealing ring
07/2006
07/27/2006WO2005043019A3 Tubular connection with slotted threads
07/27/2006US20060163870 Pneumatic joint
07/27/2006US20060162145 Method for producing a treaded tubular connection sealed by radial expansion
07/25/2006US7080998 Internal coaxial cable seal system
07/20/2006WO2006076194A2 Methods and connections for coupled pipe
07/20/2006WO2006075774A1 Threaded joint for steel pipes
07/20/2006US20060158296 Inductive Coupler for Downhole Components and Method for Making Same
07/20/2006US20060157984 Locking luer fitting
07/20/2006DE202006007315U1 Link fitting for high pressure hose has a non-rotating push-fit joining part
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