Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1994-06-13
1996-03-26
Cummings, Scott W.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277153, 277 23, F16J 1532
Patent
active
055014690
ABSTRACT:
A seal for use between a shaft rotatable about and extending along an axis and a housing through which the shaft passes axially has a rub ring fixed on the shaft outer surface and having an outer surface centered on the axis and a flexible seal ring having a pair of outer axially oppositely directed end faces lying in and defining a pair of axially spaced end planes and formed with an outer portion fixed in the housing, an inner lip engaging radially inward against the outer rub-ring surface, an intermediate portion extending radially inward from the outer portion, and a relatively thin and flexible annular web connecting the lip to the intermediate portion. An inner protector ring lying axially wholly between the planes and radially wholly within the seal ring is fixed in the seal ring and has a radially inwardly projecting inner flange juxtaposed with the rub ring and spaced radially outward from one of the outer surfaces. Similarly an outer protector ring lying axially wholly between the planes and radially wholly within the seal ring is fixed in the seal ring and has a radially inwardly projecting inner flange juxtaposed with the rub ring and spaced radially outward from one of the outer surfaces.
REFERENCES:
patent: 1657349 (1928-01-01), Eisenhauer
patent: 1659450 (1928-02-01), Stromeier
patent: 1977081 (1934-10-01), Olsen
patent: 2695801 (1954-11-01), Kosatka
patent: 2879114 (1959-03-01), Bowen
patent: 3022081 (1962-02-01), Kosatka
patent: 4436317 (1984-03-01), Schmitt
patent: 4848776 (1989-07-01), Winckler
patent: 5015001 (1991-05-01), Jay
Ducugnon Jean
Faure Eugene
Cummings Scott W.
Dubno Herbert
P.I.V. S.A.
Wilford Andrew
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