US 12,215,546 B2
External motor drive system adjusting for creep in window covering system with continuous cord loop
Trung Pham, Brampton (CA); and Marc Bishara, Toronto (CA)
Assigned to RYSE INC., Toronto (CA)
Filed by RYSE INC., Toronto (CA)
Filed on Nov. 13, 2023, as Appl. No. 18/389,200.
Application 18/389,200 is a division of application No. 17/318,791, filed on May 12, 2021, granted, now 11,840,886.
Prior Publication US 2024/0076936 A1, Mar. 7, 2024
Int. Cl. E06B 9/74 (2006.01); E06B 9/68 (2006.01)
CPC E06B 9/74 (2013.01) [E06B 2009/6827 (2013.01); E06B 2009/6836 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A drive system for use with a window covering system, the window covering system including a mechanism for raising and lowering a window covering and a continuous cord loop extending below the mechanism; the drive system comprising:
a motor configured to operate under electrical power to rotate an output shaft of the motor;
a driven wheel coupled to the output shaft of the motor and configured to engage the continuous cord loop, wherein rotation of the driven wheel in a first direction is configured to cause the continuous cord loop to cause the mechanism to raise the window covering and rotation of the driven wheel in a second direction is configured to advance the continuous cord loop to cause the mechanism to lower the window covering;
one or more sensor targets configured to be disposed on the continuous cord loop;
a controller for the motor; and
a sensor operatively connected to the controller and configured to generate a signal indicating presence of each of the one or more sensor targets when the sensor target is located in proximity to or in contact with the sensor.