Hothouse for cultivation
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United States of America Patent
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Dec 25, 1990
Grant Date -
N/A
app pub date -
Nov 3, 1987
filing date -
Nov 7, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The hothouse for cultivation according to the present invention relates especially to a hothouse for cultivation enclosed with transparent members, wherein reflexion plates are provided on the northern side for reflecting the sunlight toward the soil surface inside the hothouse, and also to a hothouse enclosed with transparent members, wherein the hothouse comprises a shutter which can be opened and closed freely, and is switchable between two types of hothouses which are a hothouse composed only of the transparent members and a double hothouse comprising a heat insulation space between the shutter completely closed and the transparent members, so that the heat of the sunlight received by the hothouse for cultivation is most effectively used and kept in the hothouse. The hothouse for cultivation of the present invention further comprises ventilation apparatus, drainage, temperature control installations, and a flowerpot device for improving the performance of the basic inventions, and proposes details for such installations from the point of view of a variety of technologies. One can think of many applications and combination based on the disclosure of the preferred embodiments within the spirits and scope of the present invention.
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