Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1988-06-16
1989-08-29
Cuchlinski, Jr., William A.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277152, 277DIG4, F16J 1542
Patent
active
048610453
ABSTRACT:
A dust excluder (12) for a seal assembly (10) such as utilized with a vehicle air conditioning compressor is disclosed as having an annular inner portion (36) that mounts on a rotatable compressor shaft (20) and as including an outer portion (38) that seals with an annular support (24) of the seal assembly axially outward from a shaft seal (30) in a manner that excludes dust to prevent seal abrasion without increased heating of the compressor shaft. The inner portion (36) of the dust excluder is preferably embodied by an annular body (56) having opposite axial ends (58,60) and the outer portion (38) is preferably embodied by a sealing section (62) having a disc (64) extending outwardly from the annular body (56) and by a sealing lip (66) extending outwardly from the disc for slidable engagement with the annular support (24). The sealing lip (66) is preferably inclined and has an edge junction that provides an annular line contact (68) with the annular support (24).
REFERENCES:
patent: 2272650 (1942-02-01), Von Veh
patent: 3567230 (1971-03-01), Gits
patent: 4376541 (1983-03-01), Walter et al.
patent: 4427202 (1984-01-01), Backlin
patent: 4583749 (1986-04-01), Hatch
patent: 4643439 (1987-02-01), Lewis et al.
Cuchlinski Jr. William A.
Hohenshell Jeff
Mather Seal Company
Shurupoff Lawrence J.
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