Seal assembly

Details Seal assembly Seal assembly

1988-12-21

1990-01-16

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

92247, 277 58, 277188A, F16J 906, F16J 1532

Patent

active

048938238

ABSTRACT:
A seal assembly is disclosed for installation in an annular groove having inner and outer radial surfaces interconnected by an axial surface. The seal assembly is comprised of a generally annular energizer element formed of an elastomeric material and including a body portion and a generally radially extending sealing lip. The seal assembly further comprises a generally annular heel bearing element formed of a generally rigid material. Upon installation of the energizer element and heel bearing element into the annular groove, an annular void, generally triangular in cross section, is formed between the two seal elements. Upon the application of pressure at or above a predetermined pressure limit, the energizer element moves into the annular void drawing at least a portion of the sealing lip into the groove to reduce the axial width of the sealing lip contact area.

REFERENCES:
patent: 3765690 (1973-10-01), Sievenpiper
patent: 4027816 (1977-06-01), Slator et al.
patent: 4143586 (1979-03-01), Zitting
patent: 4229013 (1980-10-01), Burke et al.
patent: 4231578 (1980-11-01), Traub
patent: 4268045 (1981-05-01), Traub
patent: 4421330 (1983-12-01), Burke
patent: 4566702 (1986-01-01), Traub
patent: 4635945 (1987-01-01), Beck

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