Seal with inner and outer slidably contacting rings

Details Seal with inner and outer slidably contacting rings Seal with inner and outer slidably contacting rings

1985-02-13

1986-06-17

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 84, 277 95, 277134, F16J 1534

Patent

active

045952060

ABSTRACT:
A seal for a shaft relatively rotatable in an opening in a structure has concentric inner and outer rings. The outer ring is fixed across the opening and has an inwardly-open groove with axial boundary surfaces which converge toward each other outwardly from the axis of the rings. The inner ring is elastic and has two flanges flanking a midsection which receives the shaft for relative rotation therewith. The flanges slidingly bear elastically on the boundary surfaces to produce the seal. The midsection of the inner ring has a larger outside diameter than the inside diameter of the outer ring to prevent extruding the inner ring from the outer ring under rotation or a pressure differential across the seal.

REFERENCES:
patent: 2665929 (1954-01-01), Sawyer
patent: 3493235 (1970-02-01), Pautz et al.
patent: 4348031 (1982-09-01), Johnston

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