Foamed plastic lubricating seal

Details Foamed plastic lubricating seal Foamed plastic lubricating seal

1977-09-12

1979-08-21

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277DIG6, 277 962, 277152, 277165, 277233, 308240, F16J 1520, F16J 1532

Patent

active

041650859

ABSTRACT:
A seal for a gap between at least two surfaces comprising a unitary body member made of a foam plastic material including at least one homogeneous peripheral surface portion and at least one internal porous portion. The porous portion is filled with a lubricant and is exposed through at least one section in the homogeneous peripheral surface portion to permit transfer of lubricant therethrough.

REFERENCES:
patent: 1362571 (1920-12-01), Jones
patent: 2752181 (1956-06-01), Safford
patent: 2951721 (1960-09-01), Asp
patent: 2998397 (1961-08-01), Riesing
patent: 3220786 (1965-11-01), McCutchen
patent: 3380843 (1968-04-01), Davis
patent: 3741570 (1973-06-01), Jarrett
patent: 3938868 (1976-02-01), Van Wyk

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