Stabilized seal structure

Details Stabilized seal structure Stabilized seal structure

1979-10-15

1981-02-03

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 92, 277 95, 277152, 305 11, F16J 1532, F16J 1538

Patent

active

042484391

ABSTRACT:
PCT No. PCT/US79/00841 Sec. 371 Date Oct. 15, 1979 Sec. 102(e) Date Oct. 15, 1979, PCT Filed Oct. 15, 1979
A stabilized seal structure (24,124,224) for use in a seal space (20,120,220) defined by a first wall (17), a second wall (18) confronting the first wall and variably spaced therefrom, a third wall (19) extending across the seal space between the first and second walls, and a fourth wall (16) extending across the space oppositely of the third wall (19). The seal structure includes a seal member (25,125,225) defining a first leg (26,126,226), a second leg (27,127,227) having a sealing portion (34,134,234) engaging the second wall, and a bight portion (28,128,228) extending adjacent the fourth wall. The legs and bight portion cooperatively define a load member space (29,129,229) receiving a load ring (30,130,230). At least one of the bight portion of the seal ring and the fourth wall is provided with an annular recess (31,13,231) facing the other element. The recess permits compression of the seal ring while effectively maintaining the effective volume of the seal ring space during initial compression of the seal ring by accommodating the portion of the bight of the seal ring overlying the recess during such initial compression. Resultingly, the sealing portion of the seal ring is maintained in effectively fixed relationship to the confronting wall during such initial compression, thereby providing improved stability in the sealing functioning of the seal structure.

REFERENCES:
patent: 3614113 (1971-10-01), Burk
patent: 3841718 (1974-10-01), Reinsma
patent: 4062550 (1977-12-01), Satsumabayashi et al.
patent: 4089531 (1978-05-01), Roley et al.
patent: 4132418 (1979-01-01), Roli

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