Diaphragm actuator

Details Diaphragm actuator Diaphragm actuator

1994-09-16

1996-04-30

Lopez, F. Daniel

Expansible chamber devices

Collapsible chamber wall portion

Wall portion formed of flexible material

F16J 302

Patent

active

055114628

ABSTRACT:
In a diaphragm actuator in which a central boss provided in a retainer plate is passed through a central opening of a diaphragm, to prevent any excessive stress or deformation developed in a freely deformable part of the diaphragm from being transmitted to the central opening fitted on the central boss, and adversely affecting the condition of coupling between them, a plurality of through holes are provided in the retainer plate so that, when vacuum is suddenly introduced into a vacuum chamber of the diaphragm actuator, the diaphragm is firmly secured to the retainer plate by suction produced by the through holes.

REFERENCES:
patent: 2976686 (1961-03-01), Stelzer
patent: 3136229 (1964-06-01), Bauman
patent: 3183789 (1965-05-01), Stelzer
patent: 5076142 (1991-12-01), Steer et al.
patent: 5249508 (1993-10-01), Hasegawa et al.

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