Seal and seal assembly

Details Seal and seal assembly Seal and seal assembly

1978-12-26

1980-07-01

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

3081871, 305 11, 277 95, F16J 1532

Patent

active

042103398

ABSTRACT:
A seal (16) has a body (38), a leg (40) and first and second sealing areas (42,44). The seal (16) is used in a seal assembly (10) having first and second members (12,14), such as, for example, a frame portion (20) and steering knuckle (27) of a work vehicle. Apparatus (28) such as bearing (30) supports the knuckle (27) in rotation relative to a king pin (24) of the frame portion (20). Foreign matter can enter between the frame portion (20) and steering knuckle (27) and interfere with vehicle steering. In the assemly (10), the sealing surfaces (42,44) contact substantially perpendicular surfaces (32,34) of the frame portion (20) to block passage of foreign matter to the bearing (30). A second end portion (54) of the seal leg (40) can be controllably deflectable in order to permit overfill of lubricant to pass from the bearing cavity between the frame portion (20) and steering knuckle (27).

REFERENCES:
patent: 2966376 (1960-12-01), Reynolds
patent: 3006701 (1961-10-01), Curtis
patent: 3306683 (1967-02-01), Deuring
patent: 3447848 (1969-06-01), Pitner
patent: 3639016 (1972-02-01), Bourgeois
patent: 3658395 (1972-04-01), Hallerback
patent: 3717394 (1973-02-01), Pitner
patent: 3787098 (1974-01-01), Orr
patent: 3841723 (1974-10-01), Kelso
patent: 3858950 (1975-01-01), Otto
patent: 4043620 (1977-08-01), Otto
patent: 4134596 (1979-01-01), Kawai et al.
patent: 4141562 (1979-02-01), Wu

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