Window operator control

Details Window operator control Window operator control

E - Fixed Constructions

06

B

342/40

E06B 7/00 (2006.01) E04B 7/18 (2006.01) E05F 15/20 (2006.01) G05D 3/12 (2006.01) H02P 5/50 (2006.01)

Patent

CA 1338272

A control for a window operator is operable to control incremental movement of a window. The control includes means for developing a command to selectively move the window in a direction to an open or closed position, and means for determining when a plurality of motor drives have moved the window a preselected incremental distance. Means are coupled to the developing means and the determining means for energizing each of the motor drives if a command is developed, until the motor drives have moved the window the preselected incremental distance and thereafter deenergizing the motor drives until another command is received to move the window a subsequent incremental distance in the selected direction.

611998

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