Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1975-04-15
1976-08-17
Rothberg, Samuel B.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 95, 305 11, F16J 1538
Patent
active
039750280
ABSTRACT:
Sealing apparatus which includes an elastic seal having end portions and at least one intermediate portion, all of such portions being interconnected yet axially spaced from each other whereby the seal is compressible. A projection is provided upon one end surface of the seal which is adapted to be disposed along the end portion of a bushing and extend within an annular space defined between the bushing and the link of the track shoe system, whereby penetration of earth and sand within a counterbored portion of the shoe system is positively prevented. An annular thrust ring may also be disposed within the counterbored portion of the system in a concentric manner with respect to the seal, the ring being disposed radially inwardly thereof, and in this manner, when large thrust forces are exerted upon the system, the thrust ring, interposed between the bushing and a bottom wall of the counterbored portion, will counteract the same.
REFERENCES:
patent: 2394012 (1946-02-01), Rayburn
patent: 2522231 (1950-09-01), Loftis
patent: 2906562 (1959-09-01), Burgman
patent: 3841718 (1974-10-01), Reinsma
Kato Takeshi
Satsumabayashi Kazuyoshi
Kabushiki Kaisha Komatsu Seisakusho
Rothberg Samuel B.
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