Seal assembly with stabilizing ribs

Details Seal assembly with stabilizing ribs Seal assembly with stabilizing ribs

1986-12-16

1987-08-18

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277165, 277209, F16J 1532

Patent

active

046872124

ABSTRACT:
An annular sealing ring with a generally Y-shaped cross-section for sealing between a piston and the curved wall of a cylinder. The sealing ring includes a base with one or more horizontal ribs extending outwardly from each side thereof and a pair of lips with sealing edges, the lips being spaced apart to form a cavity therebetween wherein a solid, elastic expander ring is retained. The cavity is bounded by the similarly opposed inner surface of the lips. The expander ring is seated in a portion of the cavity so that a void is created in the cavity below the expander ring.

REFERENCES:
patent: 3149848 (1964-09-01), Galloway
patent: 3418001 (1965-06-01), Rentshler et al.
patent: 3727925 (1973-04-01), Jones
patent: 4013299 (1977-03-01), Scott
patent: 4193606 (1980-03-01), Iverson
patent: 4244192 (1981-01-01), Chellis
patent: 4328972 (1982-05-01), Albertson et al.
patent: 4577874 (1986-03-01), Zitting

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