Movable wall for a pneumatic booster

Details Movable wall for a pneumatic booster Movable wall for a pneumatic booster

1980-11-10

1982-07-20

Hershkovitz, Abraham

Expansible chamber devices

Collapsible chamber wall portion

Wall portion formed of flexible material

F01B 1900, F16J 302

Patent

active

043399908

ABSTRACT:
Pneumatic boosters basically comprise a casing and at least one movable wall disposed therein dividing the casing into two chambers. The differential of pressure between a low pressure in one of the two chambers and atmospheric pressure in the other of the two chambers provides the boosting effect. The diaphragm plate of the movable wall is normally made of relatively heavy sheet steel. According to the present invention a weight reduction and a saving of material is accomplished by providing openings in at least that portion of the diaphragm plate that extends substantially radially from the axis of the booster.

REFERENCES:
patent: 2293854 (1942-08-01), Sauzedde
patent: 2826153 (1958-03-01), Johnson
patent: 2977935 (1961-04-01), Randol
patent: 3385167 (1968-05-01), Wilson
patent: 3385168 (1968-05-01), Fineman
patent: 3981227 (1976-09-01), Azuma
patent: 4020749 (1977-05-01), Muller
patent: 4043251 (1977-08-01), Ohmi
patent: 4257312 (1981-03-01), Ohmi
patent: 4270353 (1981-06-01), Thomas

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