Flanged coupling device with a static ball-and-socket joint

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United States of America Patent

PATENT NO 7118139





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The invention relates to couplings for fluid flowlines and more particularly to couplings that can be dismantled comprising flanges and a static ball-and-socket joint for use with flowlines having a diameter lying in the range 40 mm to 200 mm and transporting fluids (gases or liquids) of high penetrability, at high temperature of up to 800.degree. C., and at high pressure of up to 450.times.10.sup.5 Pa. Teh device comprises a flanged coupling device with a static ball-and socket joint comprising a first coupling member (1) having a conical sealing surface (8), a second coupling member (3) having concave sealing surface (10) of spherical shape, a two-barrier metal gasket (2) disposed between the sealing surface (8, 10) of the first and second coupling members (1, 3), and assembly means (4) for assembling the first and second coupling members (1, 3) together so as to hold the gasket (2) between their respective sealing surfaces (8, 10). The metal gasket (2) is made of a refractory granular nickel alloy that withstands hydrogen, having uniform fine grain structure with isotropic properties and coated in three sealing layers, the first layer (27) being of nickel, the second layers (28) being of silver, and the third layer (29) being an antifriction lubricant of an inorganic material that is compatible with the fluid used.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
NPO Energomash75015 PARIS1

International Classification(s)

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Inventor Name Address # of filed Patents Total Citations
Gromyko, Boris Mikhailovitch Khimky, RU 1 2
Jelezniak, Olga Nikolaevna Moscow, RU 1 3
Katorgin, Boris Ivanovitch Khimky, RU 1 3
Matveev, Eygueni Mikhailovitch Khimky, RU 1 3
Mikhaliov, Igor Alexandrovitch Moscow, RU 1 2
Mitioukov, Youri Vassilievitch Moscow, RU 1 3
Postnikiov, Ivan Denissovitch Khimsky, RU 1 3
Tchvanov, Vladimir Konstantinovitch Khimky, RU 1 2

Cited Art Landscape

Patent Info (Count) # Cites Year
Otkrytoe Aktsionernoe Obschestvo “Nauchno-Proizvodstvennoe Obiedinenie “Energomash”Imeni Akademika V.P. Glushko” (1)
* 6241254 Detachable stationary sealing device 10 1999
5354072 Hollow metal sealing rings 52 1994
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
* 7748751 Systems and methods for making connections between pipe sections to form a conduit that is substantially free of gaps 0 2007
SNECMA (50%) (1)
* 9671021 Arrangement of an oblique-contact seal in a trapezoidal groove 0 2012
* Cited By Examiner

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