Expansible chamber devices – Plural flexible wall working members
Patent
1991-04-29
1992-02-11
Look, Edward K.
Expansible chamber devices
Plural flexible wall working members
92 98R, 91376R, 91533, F01B 1900
Patent
active
050866907
ABSTRACT:
A peripheral sealed interlock for a dual diaphragm tandem vacuum booster with front and rear housings is provided. An outer radial peripheral end of a divider of the inventive interlock is greatly simplified and in the preferred embodiment a bead of a secondary diaphragm is allowed to seal on a rear housing member as well as with the periphery of the divider. The interlock provides a simplified design allowing independent compression of primary and secondary diaphragm beads while at the same time providing an interlock which require lower compression for assembly and sealing.
REFERENCES:
patent: 2989035 (1961-06-01), Stelzer
patent: 3613506 (1971-10-01), Kytta
patent: 4279193 (1981-07-01), Satoh
patent: 4345506 (1982-08-01), Ohomi
patent: 4495854 (1985-01-01), Hibino
De Hoff Edward J.
Flory Donald M.
Moore Clark D.
Osterday Craig A.
Denion Thomas
General Motors Corporation
Helms Ernest E.
Look Edward K.
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