Stoves and furnaces – Ovens – Domestic
Patent
1976-05-21
1978-08-01
Sprague, Kenneth W.
Stoves and furnaces
Ovens
Domestic
237 1A, 350293, F24J 302
Patent
active
041036727
ABSTRACT:
A solar collector having a reflector element biased toward a parabolic shape by means of forces applied to peripheral edges of the element. The forces can be opposed straight line forces, opposite acting torsion forces, or both, and if a flexible sheet is employed as the reflector element, the forces can be supplemented by resilient elements which tension the sheet in the direction perpendicular to the curvature thereof and help retain the sheet in its desired parabolic shape.
REFERENCES:
patent: 503004 (1893-08-01), Severy
patent: 1951404 (1934-03-01), Goddard
patent: 3847136 (1974-11-01), Salvail
patent: 4000734 (1977-01-01), Mattlock et al.
Jacobson Harvey B.
O#Brien Clarence A.
Sprague Kenneth W.
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