Heat collector

Stoves and furnaces – Tool having fluid fuel burner – Curling iron

Patent

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Details

126424, 126442, 126443, 138171, 138140, F24J 302

Patent

active

045052638

ABSTRACT:
A heat collector for a solar heat utilization system comprises a heat collecting pipe and a reflecting plate for focusing solar light on the pipe. This pipe has a first tubular portion for receiving solar light collected by the reflecting plate, and a second tubular portion for receiving direct solar light. The second portion has thermal expansion coefficient larger by a predetermined amount than that of the first portion, and thermally expands at the same rate as the first portion.

REFERENCES:
patent: 3970113 (1976-07-01), Guttinger et al.
patent: 4122825 (1978-10-01), Slate
patent: 4178913 (1979-12-01), Hutchison
patent: 4380995 (1983-04-01), Robertson

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