Pneumatic booster

Details Pneumatic booster Pneumatic booster

1990-08-16

1991-11-26

Look, Edward K.

Expansible chamber devices

Collapsible chamber wall portion

Wall portion formed of flexible material

92 98R, 92165R, 92165PR, F01B 1900, F16J 300

Patent

active

050673920

ABSTRACT:
The pneumatic booster of the vacuum type comprises mainly a housing (12) divided into two chambers (7, 8) by a movable wall structure (6), constructed of a substantially radial plate (9) and a flexible diaphragm (10) secured by its outer peripheral edge to the housing (12), and forming a flange (11) in the space between the plate (9) and the housing (12). The plate is centrally integral with a hub structure housing, a distribution valve device and linked to a control member and to a controlled member, each by a swivel connection. The plate (9) has at its outer edge an extension (13) cooperating in a non-leaktight manner with the internal wall of the housing (12) in order to ensure axial guidance of the movable wall (6) inside the housing (12).

REFERENCES:
patent: 3026853 (1962-03-01), Stelzer
patent: 3321915 (1967-05-01), Martin
patent: 3387540 (1968-06-01), Wilson
patent: 3556609 (1971-01-01), MacDuff
patent: 4070946 (1978-01-01), Sandvik et al.
patent: 4328738 (1982-05-01), Hamamatsu

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