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Patent Searching and Data


Matches 451 - 500 out of 4,799

Document Document Title
WO/2009/060729A1
A threaded joint for steel pipes comprising a pin (1) and a box (2). The pin has a male thread (11) and a lip (12) which comprises (i) a sealing surface (13) and (ii) a nose portion (16) provided with a shoulder surface. The box has a fe...  
WO/2009/059778A1
A threaded tubular connection (1) comprises a female threaded portion (2) at the end of a first tubular component and a male threaded portion (3) at the end of a second tubular component, the female threaded portion (2) comprising a fema...  
WO/2009/057754A1
A lubricating film, which has excellent seizing resistance, gas tightness, and rust preventive properties, can prevent the yield of a screw-free metal contact part even upon fastening at a high torque, and is free from any harmful heavy ...  
WO/2007/035308A3
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/2009/052804A1
The invention relates to a connection system for double-walled pipes (1, 2) comprising an inner pipe (12, 22) made of a stainless steel and an outer pipe (11, 21) which surrounds the inner pipe (12, 22) and has a greater tensile strength...  
WO/2006/019759A3
The present invention is a plumbing fixture that includes a threaded connection, including a male part having external threads and a female part having internal threads associated with one or more protrusions interspaced such that when t...  
WO/2009/044851A1
A screw-threaded joint for a steel pipe includes a pin (1) and a box (2). The pin (1) has a tapered male screw thread (11), a tapered seal surface (13), and an end shoulder surface (14), while the box (2) has, in a corresponding manner, ...  
WO/2009/033267A1
A method and apparatus for forging a tubular forging stock to produce a forged product, preferably a premium coupling machining blank. The apparatus includes a holding die assembly defining a holding cavity for the forging stock and a pr...  
WO/2009/027309A1
Make up method for a threaded joint (1) comprising the steps of applying a torque for making up the pin in the box until first and second abutment shoulders abut, applying an extra torque until a magnitude between 50% and 90% of the stee...  
WO/2009/027308A1
A threaded joint has an interference between thread roots of pin and thread crests of the box of value comprised between 1% and 5% of the average thickness of the connection, and a root to load flank radius R comprised in the range of 0,...  
WO/2009/018706A1
A thread protector adapted for protecting drill pipe threads. The protector is comprised of an anti-impact outer shell (10) which embraces and is affixed to a plastic member (8). A buffer area (4) is formed at the top of the plastic memb...  
WO/2008/143848A4
A coupling utilizes a tubing end portion with a bulbous shape on the exterior and a corresponding interior bulbous shape, the tubing end that engages with a fitting body with a bulbous shape and converging annular slot. The invention inc...  
WO/2008/124855A3
Disclosed are a device and a method for securing an object (2), particularly a pipe, which has an external thread (3) and can be screwed into a sleeve-type element (1) that has a complementary internal thread (6), against being unscrewed...  
WO/2008/139058A3
The invention relates to an adhesive thin lubrication composition for covering at least one thread (FI) and a screwing abutment (BVF) of the threaded member (EF) of a component (T1) of a tubular threaded seal (JF). The screwing abutment ...  
WO/2009/000428A1
A threaded element (EM) of a component (T2) comprises at least first (FE1) and second (FE2) threading portions each comprising threads (TH1, TH2) each comprising a stabbing flank and a loading flank. The stabbing flanks and loading flank...  
WO/2008/039452A3
A male coupling that is connectable to and separable from a female threaded coupling (e.g., a female threaded port) is provided. The female threaded coupling includes a sealing surface and a receiving portion sized to receive at least a ...  
WO/2009/000851A1
A threaded joint comprises one or a pair of seal rings (11, 11') having a frustoconical section with one or more annular ribs (9) protruding from its internal surface, and located in a portion of the pin surface after the end of the thre...  
WO/2009/000766A1
A threaded joint has a sealing ring (11) interposed between the pin (3) and a box (2), positioned in a portion of the surface of the pin after the end of the threaded section of the pin. The sealing ring has two protruding annular lips (...  
WO/2008/142898A1
An adapter (20) includes a base body (38) having a pair of coupling members (48a, 48b) and a connecting plug (42) inserted through a hole (36) in the base body (38) and screw-engaged with a port (28a) of the two-way valve (14). In additi...  
WO/2008/143848A1
A coupling utilizes a tubing end portion with a bulbous shape on the exterior and a corresponding interior bulbous shape, the tubing end that engages with a fitting body with a bulbous shape and converging annular slot. The invention inc...  
WO/2008/139058A2
The invention relates to an adhesive thin lubrication composition for covering at least one thread (FI) and a screwing abutment (BVF) of the threaded member (EF) of a component (T1) of a tubular threaded seal (JF). The screwing abutment ...  
WO/2008/128267A1
The invention relates to a device for releasably connecting a core drill bit (2) to a drill string (3). Said device comprises an adapter (5) which can be connected to the drill string (3) on an end (6) facing away from the core drill bit...  
WO/2008/125740A1
The coating of the invention includes a solid matrix adhering to the substrate and in which are dispersed particles (11) of at least one solid lubricant that belongs to the same one class. The solid matrix is lubricating and has a rheolo...  
WO/2008/123812A1
Hydraulic coupling (1) consisting of at least one sealing surface (4) and at least one coupling member (5) and at least one aperture (throughway or passage) (6), which is designed to be coupled together with a second hydraulic component ...  
WO/2008/121995A1
The present invention is directed to a threaded insert having an internal threaded surface and an external threaded surface. The threaded surfaces have threads that are threaded in opposite directions. Thus, if the internal threaded surf...  
WO/2008/120828A1
A threaded joint for steel pipes constituted by a pin having male threads and a box having female threads is improved with respect to ease of insertion of the pin and galling resistance of the threaded portions. The stabbing flanks of th...  
WO/2008/116986A1
A device (D) is provided for protecting a female end (EF) of a component (T) of a threaded tubular joint for drilling and operating hydrocarbon wells, provided with an internal threading (FI) and annular end surfaces (S1) and internal su...  
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 ...  

Matches 451 - 500 out of 4,799