Energy control device

Details Energy control device Energy control device

1985-08-19

1986-11-11

Green, Randall L.

Stoves and furnaces

Tool having fluid fuel burner

Soldering iron

126422, 126DIG1, 374 29, 374 30, 49 25, F24J 240

Patent

active

046216154

ABSTRACT:
A heat transfer sensing apparatus for opening window drapes and blinds determines whether the net heat flux is positive or negative. The apparatus includes first and second temperature sensing devices which are mounted adjacent a window. Both of the devices are exposed to the convective heat transfer conditions within the room, and the first temperature sensing device can be heated or cooled by radiant energy through the window. A shield shields the second temperature sensing device from direct radiant heat transfer to the window. A signal generator device connected to the temperature sensing devices generates a signal depending upon the difference in temperature of the temperature sensing devices, and the drapes are opened or closed according.

REFERENCES:
patent: 4401104 (1983-08-01), Kuzorau
patent: 4555764 (1985-11-01), Kuehn

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