Fluid handling – Self-proportioning or correlating systems – Self-controlled branched flow systems
Patent
1987-05-26
1988-11-08
Michalsky, Gerald A.
Fluid handling
Self-proportioning or correlating systems
Self-controlled branched flow systems
13750511, 13750536, 13750546, 137557, F16K 31126
Patent
active
047828501
ABSTRACT:
A diaphragm type regulator valve includes a pusher post with outwardly extending stop ears coupled to the diaphragm. The linkage coupling the pusher post and valve disc includes a lever having a pair of legs that engage a pin in a bifurcated portion of the pusher post for transmitting forces between the diaphragm and the valve disc. A retainer is rigidly mounted to the valve casing and pivotally supports the lever. The retainer includes a pair of stops that straddle the pusher post and extend in the path of travel of the stop ears thereon for positively restraining travel of the pusher post beyond a predetermined point should an excess pressure condition exist. Restraining travel of the pusher post prevents excessive stress on the linkage. A one piece plastic pressure relieve indicator mechanism is also disclosed.
REFERENCES:
patent: 2705955 (1955-04-01), Nesset et al.
patent: 2869575 (1959-01-01), Hutchens
patent: 3705599 (1972-12-01), Sheward
patent: 3844310 (1974-10-01), Brindisi
patent: 4168723 (1979-09-01), Schneider
Duffy John W.
Nichols Gregory P.
Camasto Nicholas A.
Cole Arnold H.
Fisher Controls International Inc.
Kubly Dale A.
Michalsky Gerald A.
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