Heat pump operated system for house heating
United States Patent 2780415

Inventors:
Gay, Frazer W.
Publication Date:
02/05/1957
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Assignee:
Gay, Frazer W.
Primary Class:
237/2R
Other Classes:
62/260, 62/159, 165/236, 165/291, 165/104.250, 165/104.210, 165/104.140, 62/175, 165/48.100, 137/2
International Classes:
F24D11/02; F24J3/08; F25B30/02; F25B30/06; F28D15/02; F24D11/00; F24J3/00; F25B30/00
US Patent References:
2513373Heat pump system
2584573Method and means for house heating
2598397Air-cooling attachment for warm air furnace systems
2689090Heating system
2693939Heating and cooling system