Drive unit for a vertical blind

Details Drive unit for a vertical blind Drive unit for a vertical blind

1997-01-28

1999-09-21

Johnson, Blair

Flexible or portable closure, partition, or panel

Plural strip, slat, or panel type

Venetian blind type

1601761P, E06B 936

Patent

active

059541083

ABSTRACT:
A drive unit for a vertical blind having a housing with a louver traverse drive shaft with a loop string wound therearound, a louver tilt drive shaft with a loop chain wound therearound, a louver open detection means with a slider and a switch to be turned on and off by the slider, and a control means for rotating the louver traverse drive shaft once a neutral position of the louvers is detected.

REFERENCES:
patent: 4844139 (1989-07-01), John
patent: 4896713 (1990-01-01), Rademacher
patent: 4914360 (1990-04-01), Hsieh et al.
patent: 5266068 (1993-11-01), Benthin

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