Electric control of venetian blind
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United States of America Patent
Stats
-
Nov 17, 1987
Grant Date -
N/A
app pub date -
Aug 13, 1986
filing date -
Jan 10, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
For the purpose of giving the user of an electric control of a venetian blind in a window the possibility of adjusting the angular position of the slats independently of raising or lowering the venetian blind by utilizing an electric motor, spring clutches, and corresponding lift cords, the electric control includes a control circuit with a three position switch controlled by the user. The control circuit is arranged so as to drive the motor at a low speed during a first predetermined time interval for adjusting the angle of the slats and thereafter to drive the motor at an increased speed for raising or lowering the venetian blind.
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