Automatic environment stabilizer and protection device for plant

Details Automatic environment stabilizer and protection device for plant Automatic environment stabilizer and protection device for plant

1979-02-14

1980-11-18

Bratlie, Steven A.

Plant husbandry

Cover, shade, or screen

Adjustable on supporting structure or having means allowing...

47 2, 47 28R, 47 31, 236 49, 236101D, A01G 1304, A01G 924

Patent

active

042337798

ABSTRACT:
An attachment for a plant protection device is described that automatically maintains a life sustaining environment over a broad range of ambient temperature conditions. The invention consists of a cylindrical collar adapted to be mounted on top of existing open ended plant covers or to be manufactured as an integral part of such a cover and contains a thermostatically controlled butterfly valve for ventilating the plant cover. The thermostat is responsive to ambient temperature outside the plant cover which activates the butterfly valve for controlling the release of warm air from inside the container. The collar and butterfly valve are so designed to provide adequate light and ventilation without wind chill to the protected plants and also includes protection against flying insects and random or unwanted pollination.

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