Techno Patenten B.v.

Techniku, Inc.

Robert W Collett

Daniel A Huber

Steven J Wolf

James E Peterson

Paul Y Timmer

A system for effecting and controlling the movement of a window covering between different positions. In particular, the present invention includes a motor coupled to a window covering by way of a drive assembly. The drive assembly includes one or more hollow shafts, a drive shaft, and a torque sensing mechanism. The drive shaft is coupled between the motor and a hollow, sliding shaft by way of the torque sensing mechanism. Rotation of the motor causes a lift cord to wind or unwind from the hollow sliding shaft wherein the frictional engagement of the lift cord against the hollow, sliding shaft causes the shaft to slide. Additionally, the present invention includes a method for detecting and responding to disturbances in force sensing devices coupled to the lift cord.

Control and motorization system

An apparatus for effecting and controlling the movement of a window covering member between different positions in response to a disturbance of the window covering. Also, an apparatus for assisting the manipulation of a window covering by way of potential energy stored in a spring. Also a torque sending device having a design that is insensitive to component tolerances.

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Golden, CO, United States of America

Robert W Collett