Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1977-11-11
1978-08-01
Ward, Jr., Robert S.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 42, 277205, F16J 1534
Patent
active
041039068
ABSTRACT:
A resilient diaphragm separates one side of the rotary seal, such as is used to seal the space between a rotatable shaft and an adjacent surface of a machine housing through which the shaft extends. The seal assembly employs a casing which is secured to the housing and contains, or has adjacent thereto, parts of the seal including a sealing ring or pad which has rubbing contact with a pad on the housing. The sealing ring which, in turn, retains certain parts of the assembly, is held to the casing by means of an annular flange engaged behind a flange of the casing by the use of resilient parts put together with a snap fit. That is, the flange of the sealing ring is forced past the flange of the casing while both parts undergo momentary deformation. Thereafter the sealing ring is semi-permanently retained in the assembly by the casing flange. The present invention has reference to improvements in the resilient diaphragm which isolates one side of the rubbing surfaces from the other side.
REFERENCES:
patent: 2395359 (1946-02-01), Vedovell
patent: 2650841 (1953-09-01), Meyer
patent: 2892642 (1959-06-01), Payne
patent: 2984505 (1961-05-01), Andresen et al.
patent: 3120959 (1964-02-01), Jensen et al.
patent: 3536333 (1970-10-01), Gits et al.
Knox Leonard S.
Ward, Jr. Robert S.
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