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JP4920164B2 |
A flush-type integral threaded joint with truncated-cone threads, with two scaling surfaces 11', 12', 11'', 12 '') set at the end of the threaded portions ( 7, 8 ), and with two annular scaling shoulders ( 5', 6', 5'', 6 ''). The two thr...
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JP2012072942A |
To reduce influence to the member of a screwing part side caused by the stress in a rotation direction occurring at a screwing part when screwing a screwed member to the screwing part by rotating the screwed member.A liquid refrigerant p...
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JP4898455B2 |
The threads each have a bearing flank (10, 5) extending perpendicular to the thread axis and the radial force contact zones (15) are spaced radially from the envelope (E) of the bases of the male threads and form an angle of less than 40...
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JP4885719B2 |
Embodiments of the present invention relate to methods for protecting a threaded end of a tubular member and sealingly engaging the tubular member to prevent liquid or debris contamination of the threaded end. In the preferred embodiment...
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JP4874459B2 |
A threaded union highly resistant to overtorque and compression that includes a threaded member in its internal surface-called female-that joins a threaded member in its external surface-called male-. The union between the male extreme a...
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JP4866293B2 |
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JP4860892B2 |
The invention concerns a threaded component for a seizure-resistant tubular threaded joint wherein a lubricating substance is deposited in a thin film on at least the surface of the threads of the threading, said surface being treated to...
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JP4856841B2 |
Pipe integral threaded joint formed by a male element ( 1 ) and a female element ( 2 ) respectively placed on the external surface and on the internal surface of two truncated cone-shaped parts of the threading ( 6, 7, 8, 9 ) having the ...
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JP4845150B2 |
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JP2011530684A |
Fitting assemblies are disclosed that include a threaded conduit and a releasable longitudinal restrictor comprising a compressible port securement. The threaded conduit can be configured to engage a complementary threaded portion of a f...
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JP4842135B2 |
A second tubular element is made with two opposite ends of a female-female connecting sleeve separated by a central zone. Each pair of second and third butting surfaces press together and/or each pair of first and fourth butting surfaces...
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JP4842136B2 |
The first tubular element is thickened locally, extending the second butting surface. The second tubular element has an internal annular groove on the third internal surface. The first lip seats in the seating and the second and fourth b...
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JP4835999B2 |
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 ...
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JP4830473B2 |
There is provided a pipe joint locking device which prevents accidental loosening of a pipe joint after tightening and with which a sealing property of a seal portion of the pipe joint is not impaired even if a force for rotating a pipe ...
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JP2011241893A |
To provide connection parts that enable transfer of fluid between two members and reduction of the number of parts to facilitate assembly work.The connection parts 27 connect a table base 15 on which a first flow passage 35 is formed wit...
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JP4821775B2 |
A threaded joint for steel pipes for use in an oil well which has improved galling resistance and which is protected from rusting comprises a pin and a box each having a contact surface including a threaded portion and an unthreaded meta...
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JP2011231919A |
To provide a resin-made pipe joint for reinforcing a screw member with metal or the like, which facilitates a change of specification of the metallic screw member without changing any die, and without any high cost and long time even whe...
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JP4819054B2 |
A male element for a sealed threaded tubular connection. Before tapered reduction swaging of an end region of a tube and machining in the region of a tapered male threading and a male lip to obtain a male tubular element for makeup into ...
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JP2011220431A |
To provide a corrosion proof pipe joint that is superior in sealing and workability for piping connection.The corrosion proof pipe joint includes a metallic pipe joint body having a female screw section in its end, wherein the inside oth...
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JP4805598B2 |
The diameter of a front end opening section (20-1) extending rearward over a predetermined length from the front end opening of the male member reception hole (20) is set to be larger than that of a male member reception section (20-2) o...
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JP2011526667A |
A lead-in type interference fit pipeline external thread (10), it is able to achieve its seal while non-use of packing, in which the effective thread is a cone-shape pipe thread, at least two complete variation convex thread (11) is in f...
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JP4770846B2 |
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JP4762313B2 |
An expandable tubular connection includes a pin member and a box member. The pin member includes a pin thread formed on a small step and a large step and a first seal surface formed between the small step and the large step. The box memb...
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JP4763508B2 |
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JP2011163631A |
To improve work efficiency of maintenance or service replacement of a liquid refrigerant heat exchanger.This heat pump water heater includes: a heat pump refrigerant circuit having a compressor, the liquid refrigerant heat exchanger, a d...
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JP4754471B2 |
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JP4749425B2 |
A tubular connection and methods of manufacturing a box member. The tubular connection includes a box member that includes an internal thread and a pin member that includes an external thread. The external thread is adapted to threadedly...
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JP4750708B2 |
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JP2011153648A |
To provide a detent tool capable of being more easily mounted as compared with a conventional way by a simple structure different from a conventional structure and being engaged with a joint member.This detent tool 20 includes a fixed pa...
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JP4746246B2 |
A fatigue resistant waisted threaded tubular element for threaded tubular connection, and resulting threaded tubular connection. The threaded tubular element is waisted by a groove formed in the material beneath the threading to reduce t...
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JP4741497B2 |
Before the second end is machined, the first end is fully screwed into a calibrator to make a guide mark. Preliminary tests allow the starting point for machining the second element to be defined as a function of the offset from the guid...
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JP4740869B2 |
Second and third butting surfaces are conical with identical angles, so as they press together, the internal and external surfaces of the first lip forming a first gripping sealing contact with the second external or third internal surfa...
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JPWO2009123034A1 |
To provide a method for manufacturing a screw joint product capable of improving the life of an external cutting tool and, by extension, the life of a chaser. PROBLEM TO BE SOLVED: To manufacture a threaded joint product in which the sur...
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JP2011140963A |
To provide a joint endurable against severe use, with a simple and inexpensive constitution.A nut 2 constituted of a hose installing metal fitting 1, the nut 2, a nut 3, a nut 4, a spring washer 5 and a pipe 6 is inversely formed in the ...
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JP4709453B2 |
A threaded pipe connector which may find application in the petroleum and gas industry, and pipe connections formed with the connector. The connector includes a male element disposed at the end of a first pipe and a female element dispos...
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JP2011112108A |
To provide a joint with male screw for allowing adequate and efficient fastening work without using a torque gauge.The joint with male screw 1 includes a pressure sensitive color developing sheet 6 held on the shaft 3a of a male screw 3 ...
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JP4691904B2 |
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JP4688384B2 |
Methods and apparatus are provided for obtaining a secure mechanical connection and a pressure-tight seal in the overlapping area of two telescoping tubular bodies. The two bodies, including the overlapping area, are radially expanded to...
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JP4687715B2 |
A threaded joint for steel pipes comprises a pin (1) and a box (2) each having a threaded portion (3a or 3b) and an unthreaded metal-to-metal contact portion (4a or 4b) as contact surfaces which contact each other when the joint is faste...
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JP2011094648A |
To provide a pipe joint capable of preventing the action of excessive fastening torque.The pipe joint 1 with a screw integrally includes a screw 2 formed with a male screw or a female screw screwed to one connected pipe 7, a body cylinde...
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JP4680446B2 |
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JP2011514490A |
A threaded joint (1) comprises a first seal ring (30) having a tapered shape in a cross section on an axial plane, this ring having an L-shaped metal reinforcement ring (34) embedded in it, and a second seal ring (6) positioned more inte...
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JP2011069833A |
To provide a method of replacing a neutron measurement pipe, capable of reducing the amount of time required to connect a neutron measurement guide pipe.The neutron measurement guide pipe 1 having a sleeve positioning member 70 attached ...
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JP2011056108A |
To solve the problem of a joint for inspection for a fire hydrant partitioning a primary side port and a secondary side port with a partition having an opening, wherein in water-tightly connecting an adapter of a discharge inspection dev...
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JP4644113B2 |
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JP4635905B2 |
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JP4613899B2 |
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JP4604616B2 |
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JP4599874B2 |
A threaded joint for a steel pipe comprises a pin and a box with a contact surface having a threaded part and a unthreaded metal contact part, wherein a solid lubricating film containing one or more kinds of lubricating powders selected ...
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JP4597460B2 |
A method of assembling pipe joints in a pipe string allows the circumferential orientation of a first pipe in the pipe string to be determined relative to a second pipe in the pipe string. Each pipe joint has a coupling member and at lea...
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