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WO/1991/002185A1 |
Threaded tubular interference fit interconnections and related production techniques are disclosed that are for example useful with large diameter tubular members, including pipe bodies, that can for example function as casing for oil, g...
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WO/1990/012976A1 |
Packing (10) for making a watertight seal between two threaded parts constituted by a truncated cone-shaped body made of TeflonR whose end of a smaller diameter is inserted in the female threaded connection while the end of larger diamet...
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WO/1990/001131A1 |
A fitting assembly of the type specifically designed to be used in combination with the gripping, fitting and otherwise interconnection of conduits intended for the containment and flow therethrough of high pressure fluids. The fitting a...
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WO/1990/000236A1 |
A joint (10) for fiberglass pipes (12, 14) is provided wherein mating female and male threads are ground or scribed into the ends of the pipes (12, 14) to be joined. At least one of the ground, threaded surfaces has a paste thread (16) c...
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WO/1989/006330A2 |
The same size and weight of tubular products, but in different grades of material, are made for universal connection but with seal areas that differ appropriately for adequate sealing without overstressing the connection members for the ...
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WO/1989/004426A1 |
An annular permanent magnet rotor (8) is mounted around and fixed to a crankshaft (4) of an internal combustion engine (2) and has a plurality of circumferentially spaced magnetic poles (14) of sequentially alternating north-south polari...
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WO/1988/007619A1 |
A thread form for a tubular connection between sections of large diameter pipe or casing having a pin member adapted to be made up with a box member, utilizing converging, trapped thread flanks and mating shoulders and end faces with dis...
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WO/1988/002056A1 |
A drill collar having a fishing neck just behind the pin end, which has a reduced dimension compared with the box end. Hence, the tool is particularly well suited for being oriented with its pin end up in a drill string. The BSR is enhan...
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WO/1987/007698A1 |
A quick connect coupling (20) for fluid tight connection to a threaded fluid port (22). A body (26) of the quick connect coupling (20) having a cylindrical, externally threaded first end (28) defining an axially extending passage (29) in...
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WO/1987/007699A1 |
A pipe coupler with sealing apparatus for use with lined or unlined pipes (12, 14) has a pipe connector member (20) having a bore for receiving a floating seal means (46) intermediate to threaded pipe holding portions. The bore includes ...
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WO/1987/006673A1 |
A joint for oil well pipes, which has a high galling resistance, and which is provided with a porous film of projection coating, which film is obtained by projecting, onto the outer surface of at least a metal seal portion of a joint for...
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WO/1987/004505A1 |
Joint for tube of the sleeve type (1) wherein the sleeve (1) has a composite structure (1, 5) comprising on a length of each of its threads (2) a lining (5) of synthetic material which extends in its inner medial portion (6) where it pre...
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WO/1987/002439A1 |
A threaded pipe connection having tapered sealing surfaces (22) (24) between the ends of the threads on the box and pin that engage and a resilient seal member (28) located in a groove (26) about midway between the ends of one of the sur...
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WO/1987/001786A1 |
A cylindrical threaded connection in which most of the threads between the slightly tapered pin end (10) and the slightly tapered box end (12) have free running radial clearance therebetween. One or two revolutions of thread near the pin...
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WO/1987/001787A1 |
Threaded joint for steel pipes usable particularly for the oil industry, of the type wherein the male element (3) and the female element (1) are joined by threads (4), whereas a portion of the contour surface of each thread is strongly a...
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WO/1986/006456A1 |
A tubular connection having a small diameter thread set (16) and a large diameter thread set (18), the small thread set (16) having a lesser number of threads than the large set (18). A primary torque shoulder (26) is located between the...
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WO/1986/003570A1 |
In the preferred embodiment, this invention provides a threaded pipe coupling (12) for connection with a conventional threaded pipe end (10) so as to effect improved sealing against internal fluid pressure and against external fluid pres...
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WO/1986/003274A1 |
A connector (20) for oilwell tubing and the like which has the same outer diameter (21) as does the tubing joints (8 & 9) that it connects. Tubing joints are formed internally with a tapered thread (6 & 7) having a loadbearing flank angl...
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WO/1986/003275A1 |
A connection (20) for oilwell tubing and the like which has the same outer diameter (21) as does the tubing joints (8 and 9) that it connects. Tubing joints are formed internally with a tapered thread (6 and 7) having a loadbearing flank...
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WO/1986/002123A1 |
Method for screwing a threaded joint for steel pipes, intended particularly to the oil industry, of the type comprising a male element (1) with an outer threading (3) and a female element (2) with an inner threading (4), as well as at le...
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WO/1986/002137A1 |
A tubular connector (18) for adjoining two adjacent joints comprising a first pin end (14) on a first joint, a second pin end (16) on a second joint and a tubular coupling member (18) with suitable threads for mating with both pin ends (...
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WO/1986/001252A1 |
A pipe joint for use with oil country tubular goods, such as tubing, casing, and drill pipe, a threaded member (28) adapted to be connected to another threaded member (26) to form such a pipe joint, and a method of making the threaded me...
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WO/1985/003757A1 |
A pipe joint in which a metal-to-metal seal (13, 18) is provided on the exterior of the pipe, a torque shoulder provides a further metal-to-metal seal (14, 19) and a still further seal is provided by a resilient ring (22). The box is pro...
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WO/1985/003104A1 |
Device relating to the protection before use of threads and thrust-forming seal bearings (66) which are involved in the sealing thereof and threads (55) of male or female junction areas of metal tubes. It comprises a plastic ring (56) wh...
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WO/1985/002651A1 |
An improved pin member (12) adapted for use in a tubular connection where said pin member is adapted for coaxial threaded engagement with a box member (14) having a counterbore for receiving the pin member (12). A pilot surface (34) is d...
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WO/1984/004575A1 |
A pipe joint (60) with premium threads having both metal-to-metal and polymeric seals to block fluid leakage through the joint. A polymeric seal ring (29) is preferably carried within an annular groove (24) in the box end (21). Metal sea...
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WO/1984/004352A1 |
A tubular joint or connector of box and pin members having two-step tapered threads (20, 21). Two metal-to-metal seals of complementary engaging sealing surfaces (14, 15, 18, 19) are provided, one adjacent the end of the pin member, the ...
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WO/1984/004351A1 |
An improved threaded connection adapted to secure adjacent conduits in a continuous flow conduit forming relationship. The threaded connection employs a tapered or wedge shaped thread (115) with angled or tapered thread load flanks (117,...
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WO/1984/002948A1 |
Metal-to-metal seals for pin and box member tubular joints (70, 80) where mating annular surfaces (75, 85) are machined at slightly different angles such that the bearing load from initial contact is entirely on the leading edge of the p...
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WO/1984/002947A1 |
A joint (10) and male and female tubular element (30, 20) where the threads (70, 80) of the female and male members (20, 30) have negative load flanks (44) and have two or more radial steps axially separated one from another by a reverse...
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WO/1984/001610A1 |
A pipe connector (8) for establishing a remote connection between a riser pipe (12) and a subsea wellhead (10). The connector comprises a plurality of annular elements (40, 52, 54) interconnected by a differential thread system (58, 60) ...
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WO/1984/000576A1 |
A tapered threaded member has a tapered male or female thread with a guide member which is raised slightly higher than the crests of the meshing thread and is arranged at a position for connecting the crest of the male or female thread, ...
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WO/1984/000595A1 |
A luer connection system in which a male luer connector (20) has a main body portion (22) and a front luer portion (24) with a locking ring (42) that is axially slidable along the main body portion (22). The locking ring (42) is adapted ...
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WO/1982/002754A1 |
An insulated drill collar gap sub assembly for a toroidal coupled telemetry system including a first annular sub member (150) operable to be connected at one end to a drill collar and a second annular sub member (156) operable to form a ...
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WO/1980/002316A1 |
A quick coupling device for fluid tight, especially temporary connection to a threaded pipe nipple (2) or the like, e.g. for use in tightness tests or leak detection. The device comprises two portions which are axially movable relative t...
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JP7455866B2 |
In a threaded connection for pipe having a two-step thread construction with intermediate shoulder surfaces, compression resistance is further improved. Upon completion of make-up of the pin 2 and box 3, the diameter of a stabbing cleara...
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JP2024510894A |
A tubular body, a female coupling portion, a male coupling portion, and at least one of a male thread formed on an outer surface of the tubular body and a female thread formed on an inner surface of the tubular body, and at least one the...
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JP2024510772A |
The present invention is a tubular threaded joint (1) for drilling, hydrocarbon well development, oil and gas transportation, hydrogen transportation, carbon capture, or geothermal energy, comprising a male tubular element (2) and It rel...
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JP7445002B2 |
A self-locking threaded connection partially in a non locking engagement comprises a first and a second tubular component provided respectively with male and female threaded zone (3, 4) at their respective ends. First portions (11, 12) o...
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JP2024509763A |
The fitting has a conduit with a bore defined by an axis-facing surface located coaxially with the bore. The surface is located between a conical portion located proximate the inlet of the conduit, a threaded portion located proximate th...
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JP2024507382A |
A tubular body, a female coupling portion, a male coupling portion, and at least one of a male thread formed on an outer surface of the tubular body and a female thread formed on an inner surface of the tubular body, and at least one the...
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JP7431863B2 |
In a threaded connection for pipe with a two-step thread construction, including intermediate shoulders, during stabbing, the internal-pressure sealing surface of the pin near its tip is prevented from contacting the intermediate shoulde...
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JP7423336B2 |
To provide a multiple thread screw joint capable of eliminating fitting mistakes, and a steel pipe with a joint, a structure, a construction method of the structure, and a design method and a manufacturing method of the multiple thread s...
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JP7421146B2 |
A threaded connection for steel pipe is provided that can be made up quickly and appropriately. The threaded connection includes a steel pipe 20m, a steel pipe 20f, and a coupling 50 for connecting the steel pipes 20m and 20f. The pipe b...
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JP7410885B2 |
Threaded tubular connection (10) comprising a box member (20) comprising a female external thread (26), a female internal thread (29) and a female intermediate sealing surface (27) between the female external thread and the female intern...
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JP7408576B2 |
Threaded tubular connection (10) comprising a tubular female end (20) extending from a main body (21) of a first tubular member (22), and a tubular male end (30) extending from a main body (31) of a second tubular member (32), such that ...
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JP2023183484A |
To provide a screw fastening structure that allows screw fastening with a small amount of rotation.Provided is a screw fastening structure that connects a first member having a male threaded portion at one end and a second member having ...
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JP7406509B2 |
A pipe end protector for protecting pipe threads provided on a pipe end of a pipe component for exploration and production of a hydrocarbon well, said pipe end protector comprising a main body and an annular flexible lip seal, wherein th...
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JP2023551191A |
The threaded tube provided has a pin member that connects to the box member. The pin member includes a wedge-shaped pin thread extending helically around the outer surface of the tube end. The pin member is tapered such that the diameter...
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JP7380046B2 |
To provide a paint coating tool which can reliably coat the whole of a female screw part with a paint irrespective of a direction of an axis of the female screw part, and further, to provide a paint coating method which can reliably coat...
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