Refrigeration – Structural installation – Geographic – e.g. – subterranean feature
Patent
1974-06-12
1976-06-29
King, Lloyd L.
Refrigeration
Structural installation
Geographic, e.g., subterranean feature
62335, F25D 2312
Patent
active
039656942
ABSTRACT:
The present invention is directed toward an air conditioning system having the capability of being utilized as both a heating or cooling system. At least one heat pump is provided to pump heat from a heat source to the air conditioning system to prevent freezing of the system. The heat pump also removes heat from the system, when it is used as a cooling system, and diffuses it into the earth. The earth may also be utilized as a source of heat to be supplied to the system.
REFERENCES:
patent: 2461449 (1949-02-01), Smith
patent: 2484371 (1949-10-01), Bayston
patent: 2503456 (1950-04-01), Smith
patent: 2513373 (1950-07-01), Sporn
patent: 3267689 (1966-08-01), Liebert
patent: 3392541 (1968-07-01), Nussbaum
Chapuis Henri
Vignal Maurice
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