Expansible chamber devices – Collapsible chamber wall portion – Wall portion formed of flexible material
Patent
1981-01-16
1983-02-22
Cohan, Alan
Expansible chamber devices
Collapsible chamber wall portion
Wall portion formed of flexible material
92133, 137 82, 251 61, F16K 31385
Patent
active
043744877
ABSTRACT:
A fluid actuated pilot assembly employing a cantilevered spring member which is mounted to apply a force to a sensing piston in opposition to the force applied by the sensed fluid pressure. Upon the occurrence of the pressure of the fluid being sensed exceeding the force of the cantilevered spring member, the sensing piston is moved to initiate a control function.
REFERENCES:
patent: 2612908 (1952-10-01), Tate
patent: 2793540 (1957-05-01), Cronk
patent: 2816562 (1957-12-01), Dyson
patent: 2980075 (1961-04-01), Cunningham
patent: 2989063 (1961-06-01), Clark
patent: 3140047 (1965-07-01), Holloway
Akkerman Neil H.
Christensen Bruce D.
Baker CAC
Cohan Alan
Norvell, Jr. William C.
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