Stoves and furnaces – Heaters – Surface
Patent
1975-12-04
1978-05-09
Sprague, Kenneth W.
Stoves and furnaces
Heaters
Surface
237 1A, F24J 302
Patent
active
040881199
ABSTRACT:
In order to prevent the cooling of the working fluid in a solar heat collecting system, the present apparatus and process responds rapidly to shut off the circulation of the working fluid (either liquid or gaseous) through the solar heat collecting equipment, when the rays of the sun are clouded over or when at nightime, they are non-existent. Solar heat that has been properly accumulated and stored is effectually prevented from radiating back out of the solar heat collecting system into the outer atmosphere.
REFERENCES:
patent: 1888620 (1932-11-01), Clark
patent: 2392613 (1946-01-01), Persons
patent: 2678233 (1954-05-01), McCabe
patent: 3620206 (1971-11-01), Harris et al.
Sprague Kenneth W.
Yeung James C.
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