Pressure switch for outdoor refrigeration systems

Details Pressure switch for outdoor refrigeration systems Pressure switch for outdoor refrigeration systems

1976-04-07

1977-10-11

Tolin, Gerald P.

Electricity: circuit makers and breakers

Fluid pressure

Flow-responsive type

62468, 73393, 200 83Y, 219505, H01H 3534

Patent

active

040537250

ABSTRACT:
A pressure switch for use in refrigeration systems which includes a restrictor to minimize the effect of compressor pulsations on the pressure sensing element and a heater positioned to warm the interior of the switch housing and to maintain the fluidity of refrigeration oil traversing the restrictor under conditions when the switch is exposed to low ambient temperatures.

REFERENCES:
patent: 2557929 (1951-06-01), Bask
patent: 2825781 (1958-03-01), Mitchell
patent: 3564199 (1971-02-01), Blaha
patent: 3940591 (1976-02-01), Ting
patent: 3973102 (1976-08-01), Macklem

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