Household refrigerator defrost system

A refrigerator including a compressor, an evaporator and a condenser with a temperature control to energize and de-energize the compressor. There is an electrical defrost heater for periodically warming the evaporator to defrost temperatures which is energized and de-energized by an electrical motor...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HORVAY, JULIUS B
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COLD ROOMS COMBINED HEATING AND REFRIGERATION SYSTEMS COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS HEAT PUMP SYSTEMS HEATING ICE-BOXES LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING REFRIGERATORS WEAPONS
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Beschreibung
Zusammenfassung:	A refrigerator including a compressor, an evaporator and a condenser with a temperature control to energize and de-energize the compressor. There is an electrical defrost heater for periodically warming the evaporator to defrost temperatures which is energized and de-energized by an electrical motor-driven defrost control timer having a predetermined period of run time between initiation of each successive defrost cycle. The defrost control timer is energized to run only when the compressor is energized and the defrost control timer is delayed in running for a period of time each time the compressor is energized.