Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1980-04-30
1981-12-15
Ward, Jr., Robert S.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277165, 277188A, 277207R, F16J 1520, F16J 1532
Patent
active
043055958
ABSTRACT:
A composite seal is adapted to fit in a groove formed in the outer surface of a first body and project outwardly to engage a second body spaced apart from the first body and form a fluid-tight seal between the two bodies. The seal includes an elongated raised portion which engages the second body and is formed of a deformable material. The seal further includes a pair of retainer portions formed of a material stiffer than the raised portion, the raised portion being formed integral with and located between the retainer portions. The raised portion projects outwardly beyond the outer ends of the retainer portions. The seal also includes recesses between the raised portion and both retainer portions extending below the outer ends of the retainer portions so that when the second body moves closer to the first body the material forming the raised portion will deform and flow into the recesses. The respective outer ends of the raised portion and the retainer portions are spaced apart a sufficient distance so that when one of the first and second bodies moves laterally relative to the other body the material of the raised portion will deform and cause material to fill the recess on that side of the raised portion and the raised portion to fill the space between the second body and the outer end of the appropriate retainer portion without flowing beyond the retainer portion.
REFERENCES:
patent: 2370913 (1945-03-01), Procter
patent: 2926976 (1960-03-01), Bowerman et al.
patent: 3473814 (1969-10-01), Bastow
patent: 4059280 (1977-11-01), Eastwood
Carbaugh William
Miyagishima Tosh
Hydril Company
Ward, Jr. Robert S.
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