Stoves and furnaces – Heaters – Surface
Patent
1975-01-16
1977-09-20
Sprague, Kenneth W.
Stoves and furnaces
Heaters
Surface
237 1A, F24J 302
Patent
active
040489817
ABSTRACT:
The apparatus to absorb solar radiant energy including means to circulate an energy absorbing liquid through a shallow passageway between two substantially flat members while maintaining the static pressure of the liquid not greater than atmospheric pressure.
REFERENCES:
patent: 995219 (1911-06-01), Bradley
patent: 1014972 (1912-01-01), Nichols
patent: 1888620 (1932-11-01), Clark
patent: 2358476 (1944-09-01), Routh et al.
patent: 2660863 (1953-12-01), Gerhart, Jr.
patent: 3076450 (1963-02-01), Gough et al.
patent: 3107052 (1963-10-01), Garrison
patent: 3250269 (1966-05-01), Sherock
patent: 3390672 (1968-07-01), Snelling
Sprague Kenneth W.
Yeung James C.
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