Stoves and furnaces – Tool having fluid fuel burner – Curling iron
Patent
1981-06-01
1984-01-10
O'Connor, Daniel J.
Stoves and furnaces
Tool having fluid fuel burner
Curling iron
250203R, 353 3, F24J 302
Patent
active
044248016
ABSTRACT:
The solar direction sensor disclosed a solar direction sensor which is mounted on an apparatus for collecting solar energy by precisely following the movement of the sun.
The solar direction sensor is characterized in that it has a cylinder, an opaque flange mounted on the top end portion of the cylinder and having a diameter smaller than the inner diameter of the cylinder and at least two pair of beam sensor disposed at symetric positions on the lower end portion of the cylinder, the diameter of the inner end of each of the beam sensors are equal to the inner diameter of the flange.
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patent: 3308299 (1967-03-01), Dardarian
patent: 3370293 (1968-02-01), Green
patent: 3448280 (1969-06-01), Blitchington
patent: 3780966 (1973-12-01), Newcomb
patent: 3996917 (1976-12-01), Trihey
patent: 4135493 (1979-01-01), Kennedy
patent: 4179612 (1979-12-01), Smith
patent: 4225781 (1980-09-01), Hammons
patent: 4314546 (1982-02-01), Miller
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