Multi-purpose valve assembly

Details Multi-purpose valve assembly Multi-purpose valve assembly

1986-10-14

1987-08-11

Chambers, A. Michael

Refrigeration

Automatic control

Refrigeration producer

1376142, 13761421, 62510, F25B 4104

Patent

active

046853103

ABSTRACT:
A flow control valve in a unitary casing has a seat for a manual stem valve on one side of the valve opening and a seat for a check valve on the other side, the check valve being lightly urged toward closing position against differential pressure in the flow stream and being receptive to external pressure control.

REFERENCES:
patent: 2069808 (1937-02-01), Andersson
patent: 2105876 (1938-01-01), Birch
patent: 2225838 (1940-12-01), Miller
patent: 2661893 (1953-12-01), Le Valley
patent: 3485371 (1969-12-01), Costantini
patent: 3744751 (1973-07-01), Robinson
patent: 3788776 (1974-01-01), Post et al.
patent: 4227380 (1980-10-01), Laucks et al.
patent: 4406588 (1983-09-01), Hofmann
patent: 4473093 (1984-09-01), Hart

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