Pulsator valves

Details Pulsator valves Pulsator valves

1978-04-13

1980-10-28

Cline, William R.

Fluid handling

Self-proportioning or correlating systems

Supply and exhaust type

251 611, F16K 31145, F16K 1102

Patent

active

042301416

ABSTRACT:
A pulsator valve has a valve body comprising a base and a cap with a diaphragm edge-mounted therebetween. Internally, the base is divided into inner and outer chambers by an annular valve seat with which one surface of the diaphragm cooperates to form an annular valve. The outer chamber has an atmosphere connection and the inner chamber has a valve connection to a source of subatmospheric pressure and a further connection. A valve element for the valve connection is carried by the diaphragm. Pulsating pressure is applied to the opposite surface of the diaphragm to connect the further connection either with the atmosphere connection or with the valve connection. At least one of the valve connections and the annular connection is closed in all positions of the diaphragm to prevent air flow between the atmosphere connection and the valve connection.

REFERENCES:
patent: 2652847 (1953-09-01), Segebarth
patent: 2664095 (1953-12-01), Magni
patent: 3707162 (1972-12-01), Bachmann
patent: 3930515 (1976-01-01), Kennedy et al.
patent: 3974849 (1976-08-01), Dawson

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