Pipe joints or couplings – With assembly means or feature
Patent
1975-08-11
1976-10-19
Larkin, G. V.
Pipe joints or couplings
With assembly means or feature
166 5, F16L 3500
Patent
active
039867293
ABSTRACT:
There are disclosed two embodiments of an apparatus for releasably connecting with one end of a member at an underwater location, wherein the member has a seating surface which faces toward its one end and a conical locking shoulder which faces away from its one end. The apparatus comprises a body having a seating surface engageable with the seating surface on the member, and a circumferentially discontinuous locking ring carried by the body and having a conical locking surface which is circumferentially expandible and contractible to permit it to be moved past a portion of the member into a position radially opposite the locking shoulder, as the seating surfaces are so engaged, and remotely operable means which is mounted on the body for movement in one direction to force the locking ring to locking position with respect to the locking shoulder and in the opposite direction to permit the locking ring to return to unlocking position with respect to the shoulder. In one embodiment, a normally expanded locking ring is carried by the body for contraction into locking engagement with an external shoulder about the outer side of a member, and, in another embodiment, a normally contracted locking ring is carried by the body for expansion into locking engagement with respect to a shoulder in the bore of a member.
REFERENCES:
patent: 3096999 (1963-07-01), Ahlstone
patent: 3222088 (1965-12-01), Haeber
patent: 3240511 (1966-03-01), Bishop et al.
patent: 3273915 (1966-09-01), Bishop et al.
patent: 3393926 (1968-07-01), Arnold
patent: 3489436 (1970-01-01), Ahlstone
patent: 3741589 (1973-06-01), Herd et al.
Cameron Iron Works, Inc.
Eickenroht Marvin B.
Hyer W. F.
Larkin G. V.
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