Annular seal with V-cut

Details Annular seal with V-cut Annular seal with V-cut

1983-11-22

1985-06-25

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

F16J 1540

Patent

active

045249814

ABSTRACT:
There is described herein an annular elastomer seal arranged for primary compression-type sealing capability and secondary lip-type sealing capability. The annular seal includes a pair of grooves in a radial seal face thereof, the grooves diverging with depth to form what appears as a V-shaped cut when the seal is viewed in radial cross section. When compressive stress diminishes as a result of elastomer relaxation phenomena, seepage of pressurized fluid into the grooves creates a lip seal.

REFERENCES:
patent: 1926197 (1933-09-01), Durr
patent: 2935349 (1960-05-01), Burch
patent: 3120960 (1964-02-01), Pippert et al.
patent: 3901517 (1975-08-01), Heathcott
patent: 3915463 (1975-10-01), Pippert
patent: 4438935 (1984-03-01), Lees

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