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Patent Searching and Data


Matches 451 - 500 out of 4,722

Document Document Title
WO/2008/117870A1
Burr occurring in an incomplete screw portion at the start-of-threading of the male screw (1) of a screw coupling and causing seizure at the joint of an oil well pipe is eliminated. Out of the incomplete screw portion, upper portion (11a...  
WO/2008/116891A1
A high torque threaded joint comprising a box member having threads and a pin member having threads (10) configured and positioned to mate with the threads of the box member. There- is a flank- to-flank contact thread profile using trape...  
WO/2008/110494A1
A threaded tubular connection which is leak-proof for internal and external successive pressure loads with comprises a male element (11) and a female element (12). At least one of the male or female elements (11, 12) comprises a lip (14,...  
WO/2008/108263A1
A screw joint for steel pipe of pin/box type having contact surfaces (30) including a threaded part and an unthreaded metal contact part is improved with respect to the leakage resistance, galling resistance and corrosion resistance, esp...  
WO/2008/086443A3
An analytical instrument fitting assembly for coupling first and second analytical fluid conduits is provided. The fitting assembly includes a first fitting defining a central passage adapted to receive a first fluid conduit defining an ...  
WO/2008/104083A1
A shoulder ring, for installation in a threaded pipe coupling between the installed pin ends of two pipes being connected by the coupling, has opposing end faces and a central opening, and may lobate or circular in shape. The shoulder ri...  
WO/2008/100059A1
A length adjustable pipe connector is disclosed. The pipe connector includes a connection pipe provided in the first end with a connection part to be connected to a first pipe through a screw engagement; an inner pipe provided on a first...  
WO/2008/092453A1
The invention relates to a connecting arrangement (1) for connecting a first element (2) to a second element (3) of a device, wherein the first element (2) comprises a first thread (4), and the second element (3) has a second thread (5),...  
WO/2008/089400A2
A piping connector is provided having a ring configured to install around an externa! diameter of a pipe, the ring having at least one clamp closing portion that has an open uncrlmped position and a closed crimped position, a piping shie...  
WO/2008/086443A2
An analytical instrument fitting assembly for coupling first and second analytical fluid conduits is provided. The fitting assembly includes a first fitting defining a central passage adapted to receive a first fluid conduit defining an ...  
WO2005116511B1
A threaded pipe joint coupling with wire lock system made of polyvinyl chloride comprising two pipe joining components (19,20), two sealing rings (13,22), including a wire lock (39), said wire lock (39) being inserted into a groove (12,4...  
WO/2008/077143A1
A threaded connection including a pin member and a box member, and methods for manufacturing and forming said threaded connection. The pin member has a pin thread with a pin thread crest, a pin thread root, a pin load flank, and a pin st...  
WO/2008/058025A2
A coupling for coupling a first pipe member to a second pipe member each having plain ends. The coupling includes a housing having at least one chamber, a sealing member disposed in the housing, and a plurality of gripping element for en...  
WO2005116511A8
A threaded pipe joint coupling with wire lock system made of polyvinyl chloride comprising two pipe joining components (19,20), two sealing rings (13,22), including a wire lock (39), said wire lock (39) being inserted into a groove (12,4...  
WO/2008/044966A1
The invention relates to conical threaded tubing joints,used substantially in drilling engineering, and includes two variants of threaded joints for an oil-well tubing. In the first variant, the threaded joint comprises a threaded elemen...  
WO/2008/044799A1
A tubular threaded joint for connecting tubing or casing used to excavate oil wells have a lubricating coating formed from a lubricating coating composition comprising one or more basic lubricants selected from a basic sulfonate salt, a ...  
WO/2008/042105A2
A push-together pipe assembly is disclosed for joining two pipe ends. One pipe end has a specially contoured exterior surface. The other pipe end has a mating specially contoured interior surface. Each of the contoured surfaces is made u...  
WO/2008/042106A2
A push-together pipe assembly is disclosed for joining two pipe ends. One pipe end has a specially contoured exterior surface. The other pipe end has a mating specially contoured interior surface. Each of the contoured surfaces is made u...  
WO/2008/039456A2
A coupling assembly including a union member having a first receiving portion with internal threads and a second receiving portion with oppositely oriented internal threads, a first coupling member (e.g., a hose adapter) having external ...  
WO/2008/038034A1
A protective ring (40) for use in a coupling assembly (10), the coupling assembly comprising a coupling body (20) of generally cylindrical shape with a channel therethrough, each end of said coupling body having a thread (22, 24) for thr...  
WO/2008/035794A1
There is provided a method for detecting an abnormal portion (defect, non-adhering portion, and seized portion) lying at a contact region between each part of a pin and each part of a box forming a threaded joint to be used as a joint of...  
WO/2008/032872A1
A threaded joint for steel pipes having excellent galling resistance, rust preventing properties, and airtightness without using a compound grease comprises a pin and a box each having a threaded portion and an unthreaded metal-to-metal ...  
WO/2008/029957A1
There is provided a method capable of evaluating a fastening state of a threaded joint that is used as a joint of pipes or tubes such as OCTG with a high degree of accuracy even after being fastened and a method for fastening a threaded ...  
WO/2008/022357A1
The invention provides a pipe coupling 10 having a coupling zone 12 and two pipe connection zones 14, 15 remote the coupling zone 12. The coupling zone 12 includes a first portion 16 having a spigot 18 having a sealing ring receiving for...  
WO/2008/017454A1
A composable pipework comprising modular ducts (11, 111, 211, 311) with a fluid-tight connecting system, wherein the modular ducts have threaded male (14) and female (16) coupling parts, comprising sealing means (18) adapted to provide a...  
WO/2006/113760A3
A threaded connector includes a base and a threaded male portion projecting axially outward from the base. The threaded male portion is adapted to mate with an associated threaded female socket. The threaded male portion includes a helic...  
WO/2006/017315A3
The spray head with nozzle gasket includes an elongated spray header having a plurality of laterally spaced liquid nozzles each of which is mounted in a corresponding pocket in the spray header At least one elongated cleaning brush assem...  
WO/2007/117630A1
A thread protection member (100) for protecting threads in a threaded joint includes a body (104) formed of a material selected to reduce damage to the threads during a make-up of the threaded joint and a discontinuity (102) reducing rem...  
WO/2007/114460A1
A tubular threaded joint which has excellent resistance to compression and which permits easy tightening operation in the field in a vertical state comprises a pin having a male threaded zone and a box having a female threaded zone. The ...  
WO/2007/115183A1
Threaded connections including a pin member and a box member and are mismatched. The pin member and the box member have wedge threads formed thereon with a gap formed between pin and box load flanks and/or pin and box stab flanks of the ...  
WO/2007/115096A1
A threaded connection for a conduit includes a pin member and a box member. The pin member includes a pin thread having a pin thread crest, a pin thread root, a pin load flank oriented at a pin load flank angle, and a pin stab flank orie...  
WO/2007/109795A2
A plumbing test cap has a body with a bore extending from a first end which is mountable over a stub-out having a surface engagement feature. The body has a closed second end. A retainer is carried on the body for transverse movement fro...  
WO/2007/090562A1
The invention relates to a thread sealing thread based on a perfluoroalkene (co)polymer strip that is composed of a wound, folded, woven and/or twined, drawn perfluoroalkene (co)polymer strip, whose surface is covered by a liquid, perflu...  
WO/2006/073902A3
A threaded connection including a pin member and a box member, and methods for manufacturing and forming said threaded connection. The pin member has a pin thread with a pin thread crest, a pin thread root, a pin load flank, and a pin st...  
WO/2005/108844A3
An interconnection for oil field tubular goods operates in a self sealing manner in response to internal pressures which might otherwise cause leakage through couplings or joints. Each coupling sleeve includes an interior fulcrum ring fi...  
WO/2006/047685A3
Tubular connections and methods of designing tubular connections having selected root/crest clearance when the box member and pin member are made-up. When the tubular connection is radially expanded, a thread seal is formed over at least...  
WO/2007/071278A1
In a modular tubular element (1) for duct construction comprising a circular section tubular conduit (2) of predetermined length which is structured so to have a first male terminal portion (2a) and a second female opposite terminal port...  
WO/2007/071624A1
The invention relates to a female element (2) of a tubular threaded joint able to undergo diametral expansion in the plastic deformation range. The female element (2) is positioned at one end of a tubular component and on its external pe...  
WO/2007/065986A1
The invention relates to a connection assembly (100) for drill collars or heavy drill pipes comprising: a male connection element which comprises, in its longitudinal direction, an at least partially threaded conical surface portion whic...  
WO/2007/042231A3
The coating (11) comprises a solid matrix adhering to the substrate (13) in which are dispersed particles of solid lubricants from at least two classes which are selected to exert a synergistic effect between themselves and with the cons...  
WO/2007/066452A1
A pipe joint locking device that can prevent a pipe joint from being erroneously loosened after tightening and in which sealing ability at a seal section of the pipe joint is not impaired even force rotating a pipe member is applied to i...  
WO/2006/114358A3
A single- or multilayer threaded pipe, wherein at least one layer is produced from a polyolefin composition comprising (percentages express on the basis of the sum of components (A) and (B)): (A) 65-90 wt% of a heterophasic polypropylene...  
WO/2007/063079A1
A threaded metallic joint has the thread surface of pin (100) and box (200) covered with a coating comprising a first layer (24) laid on the overall surface of the pin member (100), and a second layer (25) laid on part of the surfaces of...  
WO/2006/136796A3
A method of producing an injection-moulded plastics article (10) having a hollow interior, such as a pipe section, comprises the steps of forming a mould cavity having outer dye parts (11, 12) and an inner mandrill (13) to define an annu...  
WO/2007/042231A2
The coating (11) comprises a solid matrix adhering to the substrate (13) in which are dispersed particles of solid lubricants from at least two classes which are selected to exert a synergistic effect between themselves and with the cons...  
WO/2007/035308A2
A riser connector uses a box and upset pin connector threadform design having S-shaped load flanks that provide a variable load angles depending on the radial position along the engaged teeth. This design promotes a load path that change...  
WO/2007/028696A1
The invention specifies a screwed socket connection (108) for the pressure-tight connection of two components carrying a fluid, in which screwed socket connection (108) the position of the axial seal (20, 120) is predetermined in such a ...  
WO/2007/026970A1
A threaded joint for steel pipes comprised of a pin 1 and a box 2 each having a threaded portion (1a, 2a) and an unthreaded metal contact portion (1b, 2b) exhibits adequate leakage resistance and galling resistance when used for makeup o...  
WO/2007/017082A1
A first axial abutment surface (6) formed at the free end of an annular lip (5) of a threaded male element (1) and a second axial abutment surface (9) formed at the end of a housing (7) of a threaded female element (2) have a same axial ...  
WO/2007/012673A1
The invention relates to a connection element (1) for producing a fluid-tight screw connection (12) of a line, said connection element comprising a screw thread (2), a pitch (3) which is defined by the root (4) of the thread and adjacent...  

Matches 451 - 500 out of 4,722