Pipe joints or couplings – Safety release
Patent
1992-03-31
1993-09-28
Nicholson, Eric K.
Pipe joints or couplings
Safety release
285 24, 285136, 285151, 285275, 285 3, 285 92, 285 93, F16L 3702, F16L 2708
Patent
active
052481662
ABSTRACT:
A flowline safety joint having a tubular member supported from a subsea tree structure, an elbow having a horizontal passage therethrough and a vertical passage extending upwardly from said horizontal passage, a stab-in male member having a leading end, a trailing flowline connecting end, a passage therein and terminating short of said leading end and a vertical opening in said male member communicating with said vertical passage through said elbow when installed within said horizontal passage, and a flat surface surrounding the opening of said vertical opening in said male member. A seal providing a metal-to-metal seal between the lower end of the tubular member and the flat surface on said male member, and a swivel member for connecting said elbow to said tubular member, said swivel member including an element increasing the downward loading of said tubular on said seal to control the loading of said male member at which it releases from said horizontal passage through said elbow.
REFERENCES:
patent: 2752197 (1956-06-01), Marco
patent: 3502353 (1970-03-01), Burns
patent: 3659877 (1972-05-01), Kubasta
patent: 3727948 (1973-04-01), Current
patent: 4059288 (1977-11-01), Mohr
patent: 4138751 (1979-02-01), Kentosh
patent: 4361165 (1982-11-01), Flory
patent: 4397357 (1983-08-01), Hettingter
patent: 4501442 (1985-02-01), Partus
patent: 4602586 (1986-07-01), Ortloff
patent: 4928997 (1990-05-01), Reisener et al.
Cooper Industries Inc.
Nicholson Eric K.
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