Stoves and furnaces – Tool having fluid fuel burner – Curling iron
Patent
1988-12-09
1989-07-18
Green, Randall L.
Stoves and furnaces
Tool having fluid fuel burner
Curling iron
126426, 350250, 350501, F24J 208
Patent
active
048483192
ABSTRACT:
A solar energy concentrator including a thin flexible Fresnel lens for focusing incident solar radiation not normal to the lens onto a target area by refraction. The Fresnel lens is supported or suspended above the target area by a frame and folded along at least one line or region parallel to the refractive prisms of the lens which are generally parallel to the axis of the target area whereby the Fresnel lens opens toward the target area. Thus the Fresnel lens is so positioned so as to allow it to bow and flex under wind loads, gravity and other environmental factors without causing significant deterioration in the efficiency of the system.
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Buckingham Stephen W.
Green Randall L.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
Sell Donald M.
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