Seal for a rotatable pipe coupling

Details Seal for a rotatable pipe coupling Seal for a rotatable pipe coupling

1987-09-14

1988-05-03

Shoap, Allan N.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 83, 277 95, 2771675, 277206R, 285 98, 285111, 285187, 285281, 285336, F16J 1532, F16J 1534, F16L 1703

Patent

active

047415410

ABSTRACT:
Seal for a rotatable pipe coupling of large dimensions such as the swivel of a mooring device, comprising a sealing ring (30) of substantially rectangular cross-section (31) place in a rectangular groove (29) which bridges the gap (27) to be sealed, the sealing ring (30) being placed in the groove (29) in a manner such that it can expand or contract by temperature variations inside the groove (29). This can be achieved by providing radial clearance (34) between the inner face of the ring (30) and the opposite wall (28) of the (29) and/or clearance (35) between the ring (30) and the outer wall of the groove.

REFERENCES:
patent: 2512883 (1950-06-01), Warren
patent: 2542701 (1951-02-01), Press
patent: 2547185 (1951-04-01), Von Bolhar
patent: 2643140 (1953-06-01), Scheiwer
patent: 3184246 (1965-05-01), Kline
patent: 3285615 (1966-11-01), Trbovich
patent: 3341212 (1967-09-01), Bagnard et al.
patent: 3449029 (1969-06-01), Smith
patent: 3838718 (1974-10-01), Flory et al.
patent: 3851888 (1974-12-01), Limpson, Jr. et al.
patent: 4410189 (1983-10-01), Myers et al.

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