Solar heating pipe

Details Solar heating pipe Solar heating pipe

1975-11-17

1977-10-04

Sprague, Kenneth W.

Stoves and furnaces

Heaters

Surface

F24J 302

Patent

active

040518353

ABSTRACT:
A fluid carrying pipe having an integral transparent portion formed into a longitudinally extending cylindrical lens that focuses solar heat rays to a focal axis within the volume of the pipe, and which pipe on the side opposite the lens has a heat ray absorbent coating for absorbing heat from light rays that pass through the focal axis.

REFERENCES:
patent: 1989999 (1935-02-01), Niederle
patent: 3022781 (1962-02-01), Andrassy
patent: 3125091 (1964-03-01), Sleeper, Jr.
patent: 3901036 (1975-08-01), Martin

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