Expansible chamber devices – Plural flexible wall working members
Patent
1976-08-02
1977-05-03
Schwadron, Martin P.
Expansible chamber devices
Plural flexible wall working members
92 99, F01B 1900
Patent
active
040207498
ABSTRACT:
Tandem type vacuum brake boosters require a connection between their vacuum chambers. According to the present invention this connection is provided by the housing having crosspieces parallel to the longitudinal axis of the housing disposed about the periphery of the housing with channels formed between the crosspieces to enable the two vacuum chambers to communicate with each other.
REFERENCES:
patent: RE28501 (1975-08-01), Weatherhogg
patent: 3411414 (1968-11-01), Brown
patent: 3420145 (1969-01-01), Stumpe
Becht Reimund
Muller Ewald
Hershkovitz Abraham
Hill Alfred C.
IT&T Industries, Inc.
O'Halloran John T.
Schwadron Martin P.
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