Leak detector device

Details Leak detector device Leak detector device

1977-10-07

1979-02-13

Cohan, Alan

Refrigeration

Automatic control

Of external fluid or means

62127, 165 11, 165 70, F25B 100

Patent

active

041388569

ABSTRACT:
Apparatus responsive to leaks occurring in a heat exchanger between a first tubular passageway which transports a heat transfer fluid at a relatively low pressure and a surrounding concentrically second tubular passageway which transports a refrigerant at a relatively higher pressure and including a sensor positioned to respond to the occurrence of a leak permitting the refrigerant to pass into the first passageway, a relay which is actuated by the sensor upon detection of a leak, and a plurality of valves which may be selectively actuated to interrupt the flow of either or both fluids through the heat exchanger.

REFERENCES:
patent: 3123984 (1964-03-01), Leonard
patent: 3395676 (1968-08-01), Sprague
patent: 3400753 (1968-09-01), Slover
patent: 3522008 (1970-07-01), Defabaugh

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