Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1989-08-15
1991-04-23
Cuchlinski, Jr., William A.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 47, 277 50, 277152, F16J 1532
Patent
active
050094351
ABSTRACT:
A unitary seal device having a dual seal system for sealing around a rotatable shaft between the rotatable shaft and its housing to separate a region of higher pressure from a region of lower pressure is disclosed. The unitary seal device includes an annular outer housing which forms the outer periphery of the unitary seal device. The outer housing has a through bore located substantially axially centrally thereon which divides the annular outer housing into an axially inner portion and an axially outer portion. First and second seal elements having an L-shaped cross-section, including a radially extending leg and an axially extending leg are disposed in the outer housing. The axially extending legs are spaced-apart from each other to form a central channel and the radially extending legs sealingly engaging the rotatable shaft around the entire circumference of the rotatable shaft. A securing device including a first annular inner retainer located in the axial outer portion of the outer housing holds in position the radially extending legs of the first and second seal elements. A second annular inner retainer disposed in the axially inner portion of the outer housing may also be used. The outer housing through bore permits venting through said unitary seal device in the event of a sealing failure but is formed to preclude the ingress of contaminants.
REFERENCES:
patent: 2185790 (1940-01-01), Kosatka et al.
patent: 2191873 (1940-02-01), Victor
patent: 2945709 (1960-07-01), Freed et al.
patent: 3190661 (1965-06-01), Wahl et al.
patent: 3275331 (1966-09-01), Mastrobattista et al.
patent: 3510177 (1970-05-01), Shimula
patent: 3575426 (1971-04-01), Durham
patent: 3866924 (1975-02-01), French
patent: 3871666 (1975-03-01), Franz et al.
patent: 4153259 (1979-05-01), Torstensson
patent: 4353388 (1982-10-01), Isoyama et al.
patent: 4405135 (1983-09-01), Ries
patent: 4448425 (1984-05-01), von Bergen
patent: 4497496 (1985-02-01), Repella
patent: 4739998 (1988-04-01), Steusloff et al.
patent: 4756536 (1988-07-01), Belcher
patent: 4834397 (1989-05-01), Shimasaki et al.
patent: 4943068 (1990-07-01), Hatch et al.
CR Seals Handbook, Catalog, 457010: pp. 10, 12.
Villanyi Tibor J.
Westerson Kevin W.
Cuchlinski Jr. William A.
Cummings Scott
Cummins Engine Company, Inc.
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