Seal ring

Details Seal ring Seal ring

1974-11-25

1976-07-06

Rothberg, Samuel B.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277160, 277235A, F16J 906

Patent

active

039678296

ABSTRACT:
A seal ring for sealing an annular space between two telescoped and relatively movable parts. The ring seats in a groove in one of the parts, and leaf springs urge the seated ring against the other part to effect the seal. The leaf springs include annealed or reduced-cross-section portions which provide relatively low-rate and long-travel spring characteristics to accommodate tolerance variations, dimensional changes of the ring as wear occurs, and thermal expansion or contraction of the sealed parts. The wearing surfaces of the ring may be covered by a plastic cap or anti-galling coating.

REFERENCES:
patent: 452900 (1891-05-01), Wheelock
patent: 1773250 (1930-08-01), Amberg
patent: 2083237 (1937-06-01), Norton
patent: 2117986 (1938-05-01), Robertson
patent: 2311559 (1943-02-01), Mason
patent: 2746819 (1956-05-01), Olson
patent: 3586290 (1971-06-01), Null
patent: 3671047 (1972-06-01), Umezawa
patent: 3806139 (1974-04-01), Sugahara

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