Heat exchange – Geographical
Patent
1976-10-28
1977-09-27
Davis, Jr., Albert W.
Heat exchange
Geographical
165105, F28D 1500
Patent
active
040505090
ABSTRACT:
Down-pumping heat pipes are provided to augment natural earth heat when used in association with conventional or up-pumping heat pipes for the purpose of maintaining an area such as a roadway free of ice and snow.
REFERENCES:
patent: 2068549 (1937-01-01), Knight
patent: 3195619 (1965-07-01), Tippman
patent: 3217791 (1965-11-01), Long
patent: 3951204 (1976-04-01), Movick
Bienert Walter B.
Pravda Milton F.
Caser A. H.
Davis Jr. Albert W.
Dynatherm Corporation
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