Window having motorized shades

Details Window having motorized shades Window having motorized shades

1993-07-16

1994-12-13

Purol, David M.

Flexible or portable closure, partition, or panel

Plural and/or with rigid closure

Diverse types

160310, E06B 332

Patent

active

053721730

ABSTRACT:
A window shade located between the two window panes of a window is automatically driven by two electric motors attached to the roller of the window shade so as to place the window shade in a raised position or a lowered position in accordance with the polarity of the power supplied to two electric motors. A relay, when activated, provides power to a manually activated switch having two positions to control the polarity of the power supplied to the electric motors. When deactivated, the relay bypasses the manually activated switch and provides power to the electric motors having a polarity to place the window shade in its lowered position.

REFERENCES:
patent: 2492721 (1948-12-01), Vita
patent: 2606607 (1952-08-01), Vita
patent: 3186473 (1965-06-01), Myers et al.
patent: 3294152 (1966-12-01), Kuijvenhoven
patent: 4649980 (1987-03-01), Kunz
patent: 4874026 (1989-10-01), Worrall
patent: 4974658 (1990-12-01), Komatsu et al.
patent: 5088543 (1992-02-01), Bilbrey
patent: 5129442 (1992-07-01), Warner
patent: 5139075 (1992-08-01), Desrochers
patent: 5249616 (1993-10-01), Yen

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