Double-layer window with shade roller unit for regulating the li

Details Double-layer window with shade roller unit for regulating the li Double-layer window with shade roller unit for regulating the li

1992-09-30

1993-10-05

Johnson, Blair M.

Flexible or portable closure, partition, or panel

Plural and/or with rigid closure

Diverse types

160 231, 160310, E06B 332

Patent

active

052496163

ABSTRACT:
A double-layer window includes a window panel consisted of two transparent panels attached together with a narrow space defined on the inside, and a shade roller unit attached to the window panel on the bottom and controlled by a reversible motor to automatically deliver a shade body into the narrow space by two shade guide-rolls in blocking up the window from the light, or to automatically take up the shade body permitting the light to pass through the window.

REFERENCES:
patent: 2237566 (1941-04-01), Land
patent: 3186473 (1965-06-01), Myers et al.
patent: 4338996 (1982-07-01), Frank
patent: 4506720 (1985-03-01), Iwanicki
patent: 4649980 (1987-03-01), Kunz
patent: 4766941 (1988-08-01), Sloop et al.
patent: 4813198 (1989-03-01), Johnston et al.

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