Apparatus for synchronizing the slats of motor driven window bli

Details Apparatus for synchronizing the slats of motor driven window bli Apparatus for synchronizing the slats of motor driven window bli

1983-02-17

1985-01-08

Dobeck, B.

Electricity: motive power systems

Positional servo systems

With particular 'error-detecting' means

318640, 318678, 160DIG17, 160166R, C05B 106

Patent

active

044929080

ABSTRACT:
This invention relates to a circuit arrangement and the associated mechanism for slaving the angles of rotation of the slats of a plurality of centrally controlled sun or window blinds. The driving motor of each blind is provided with current via a corresponding operational amplifier and related circuit. The motor operates the slats to achieve balance between an input control voltage and a voltage depending on the angular position of the slats. An automatic version in which the control voltage is generated by a photoelectric sensor and several circuit variations are shown.

REFERENCES:
patent: 2149481 (1939-03-01), Bosch et al.
patent: 3249148 (1966-03-01), Zablodil
patent: 3559024 (1971-01-01), Marder
patent: 3742327 (1973-06-01), Nettles
patent: 3890550 (1975-06-01), Izumi et al.
patent: 3978387 (1976-08-01), Nettles

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