Lutron Technology Company LLC

Olli T Friman

Edward J Blair

Jason O Adams

Stuart W Dejonge

Systems, methods, and apparatus are described herein for pre-winding a motorized roller shade. The motorized roller shade may include a roller tube, a flexible material attached to the roller tube, a motor drive unit, and mounting brackets configured to support respective ends of the roller tube. The roller tube of the roller shade may be slid to an extended position. A configuration procedure may be determined to have been initiated. The flexible material may be secured, for example, to prevent the flexible material from unrolling. The roller tube may be wound a predetermined number of rotations with the flexible material and a hembar of the roller shade secured, for example, to prevent the flexible material from being raised or lowered. Winding the roller tube may include pre-winding a spring that is coupled to the roller tube. The flexible material may be unsecured when the roller tube has been pre-wound.

Pre-winding a motorized roller shade

A motorized window treatment may be configured to adjust a position of a covering material to control the amount of daylight entering a space. The motorized window treatment may include a DC power source for charging an energy storage element, such as a supercapacitor and/or rechargeable battery. The energy storage element may be configured to provide power for the operation of a motor used to adjust the position of the covering material. The energy storage element may discharge when providing power to the motor and may charge such that the current it draws from a battery is at a desired average current level that extends the lifetime of the battery.

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Bethlehem, PA, United States of America

Olli T Friman