Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1979-11-01
1981-03-03
Ward, Jr., Robert S.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277212FB, 74 18, F16J 304, F16J 1556
Patent
active
042536758
ABSTRACT:
A shaft sealing precluding fluid from moving in a direction longitudinally of the shaft. At the same time the shaft sealing allows a motion of the shaft in axial direction, an inclination of the shaft, and may also allow a rotary motion of the shaft relative to its sealing means. The sealing means is a rolling diaphragm including a clamping flange on one end of the rolling wall thereof. The other end of the rolling diaphragm is provided with a cylindrical elastomeric member having a projection conforming substantially with the shape of a portion of reduced diameter of the shaft and engaging under pressure said portion of reduced diameter. The rolling diaphragm includes an elastomeric ply and a fabric reinforcement of the ply. The fabric reinforcement is removed from a region of the aforementioned projection of said rolling diaphragm to provide an interface between said portion of reduced diameter of, or cavity in, said shaft and said projection where the radially inward pressure of said projection is not limited by the presence of said fabric reinforcement.
REFERENCES:
patent: 1151227 (1915-08-01), Stokes
patent: 1712003 (1929-05-01), Hubbard
patent: 3171285 (1965-03-01), Tuft
patent: 3391646 (1968-07-01), Schlosser
Bellofram Corporation
Salzer Erwin
Ward, Jr. Robert S.
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