Pipe coupling

Details Pipe coupling Pipe coupling

1983-09-26

1986-02-11

Husar, Cornelius J.

Pipe joints or couplings

Packed

Externally with clamp

285342, 285348, 285372, F16L 1700

Patent

active

045695423

ABSTRACT:
A pipe coupling for the joining of plain end pipe that includes an annular gasket and a compressible lock ring at each end of the coupling between a tubular middle ring and an annular follower. Bolts extending between the opposite followers are effective when tightened to compress both the gasket and lock ring into their operative relation for sealing and gripping a coupled pipe end, respectively. An annular recess contained in the backface of the gasket affords a clearance of controlled dimension initially about the juxtaposed portion of the lock ring. The clearance functions when the bolts are tightened to enable gasket sealing pressure to be achieved about the pipe sequentially before an effective grip on the pipe is attained by the lock ring.

REFERENCES:
patent: 931171 (1909-08-01), Williams
patent: 2461828 (1949-02-01), Lomelino
patent: 2474880 (1949-07-01), Woodling
patent: 2779610 (1957-01-01), Risley
patent: 2787479 (1957-04-01), Burns
patent: 4119335 (1978-10-01), Rieffle et al.

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