Pipe joints or couplings – With assembly means or feature
Patent
1975-01-27
1978-08-29
Kundrat, Andrew V.
Pipe joints or couplings
With assembly means or feature
285 81, F16L 3500
Patent
active
041099400
ABSTRACT:
For use in connecting first and second pipes, an apparatus which incorporates an external sleeve adapted to be abutted against a flange and positioned about a first pipe and enclosing oppositely facing sets of tapered slips. The slips incorporate serrations to enable them to grip the first pipe. An encircling cavity receives fluid under high pressure and hydraulically forces the two sets of slips to an actuated position, firmly gripping the first pipe. This provides a good mechanical connection of the connector to the first pipe. The second pipe is preferably connected to the flange. A separate set of fluid seals prevent leakage. They are actuated by means of a second set of pistons which hydraulically force the seal members with adequate pressure to cause them to seal the connection of the first and second pipes. The coupling apparatus has a separate mechanical coupling and an isolated seal mechanism which are separately actuated.
REFERENCES:
patent: 1807046 (1931-05-01), Rasmussen et al.
patent: 3353847 (1967-11-01), Brown
patent: 3393926 (1968-07-01), Arnold
patent: 3598429 (1971-06-01), Arnold
patent: 3695634 (1972-10-01), White
patent: 3704033 (1972-11-01), Arnold
patent: 3784234 (1974-01-01), Mohr
patent: 3986728 (1976-10-01), Marsh
Gunn Donald
Kundrat Andrew V.
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