Plant husbandry – Greenhouse – apparatus or method
Patent
1978-12-07
1981-02-10
Bagwill, Robert E.
Plant husbandry
Greenhouse, apparatus or method
47 19, 47 26, A01G 900
Patent
active
042493404
ABSTRACT:
A solar energy heated structure, such as an occupied building or greenhouse, includes a walled structure enclosing space volume. A movable insulated panel with a reflective surface is pivotably supported within the space volume. In a first position the panel cooperates with an insulated portion of the walled structure to enclose a lower portion of the space volume containing the occupied portion or plant bed and prevents loss of heat therefrom. In a second position the panel is disposed in an upper portion of the space volume, so that solar energy entering the overall space volume through a light transmitting portion of the walled structure is reflected onto the solar energy user by the reflective surface of the panel.
REFERENCES:
patent: 2777253 (1957-01-01), Bensin
patent: 3249682 (1966-05-01), Laing
patent: 3461605 (1969-08-01), Stanhope
patent: 4095369 (1978-06-01), Posnansky et al.
patent: 4128307 (1978-12-01), Badertscher et al.
Bagwill Robert E.
Environmental research Institute of Michigan
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