Flexible or portable closure – partition – or panel – Plural and/or with rigid closure – Roll type
Patent
1977-09-15
1982-02-02
Caun, Peter M.
Flexible or portable closure, partition, or panel
Plural and/or with rigid closure
Roll type
160271, E06B 917
Patent
active
043134840
ABSTRACT:
This invention relates to a self-inflating solar curtain and to the mechanism for automatically raising and lowering same between its operative and inoperative positions in response to the direction of heat flow into and out of a confined space within which the temperature is to be controlled. The curtain comprises at least one double walled air-entraining envelope folded along its lower edge to provide a cradle supporting a rigid combination spreader, weight and guide member effective to maintain a permanent air pocket at the base thereof. Vents are provided in the envelope for taking air into the pocket as well expelling air therefrom as the curtain is raised into its inoperative position through the gap left between a pair of pinch rollers mounted overhead. The sides of the envelope are left open but confined and sealed within the opposed channels of a pair of tracks mounted alongside thereof. The curtain is wound and stowed on a storage drum above the pinch rollers that is driven by a reversible motor preferably automatically controlled by a sensor responsive to temperature differentials on opposite sides of the curtain. A heating/cooling switch functions to reverse the action of the curtain for a given response of the sensor.
REFERENCES:
patent: 2328257 (1943-08-01), Butts
patent: 3110343 (1963-11-01), Guffan
patent: 3236290 (1966-02-01), Lueder
patent: 3860055 (1975-01-01), Wild
patent: 3918512 (1975-11-01), Kuneman
patent: 4039019 (1977-08-01), Hopper
patent: 4095639 (1979-06-01), Ryan
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