Patents by Inventor Charles Derk, JR.

Charles Derk, JR. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • ACTUATOR SYSTEM FOR WINDOW SHADES
    Publication number: 20230228147
    Abstract: In various arrangements, an actuator system for window shades having shade material and a beaded chain is presented, the actuator system having a cover and an actuator mechanism with a carrier, a selector, a first ratchet member, and a second ratchet member. In various arrangements, the movement of the selector facilitates engagement of one of the first ratchet member or the second ratchet member with the beaded chain so as to facilitate raising of lowering of shade material of the window shade system.
    Type: Application
    Filed: January 10, 2023
    Publication date: July 20, 2023
    Inventors: Charles Derk, JR., Michael Campagna, Armando Figueroa, James Liu
  • Automatic torque calibration for roller shades
    Patent number: 9534442
    Abstract: A method that detects obstacles on a roller shade's travel that create excess torque by sensing the current draw from a motor and method by which the motor can calibrate itself to detect excess torque. During the roller shade's travel, it will record the instantaneous torque being generated at various points. For example, it will store the greatest value in the shade motor's non-volatile memory as the normal operating torque.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: January 3, 2017
    Assignee: Crestron Electronics, Inc.
    Inventors: Charles Derk, Jr., Ben Slivka, Luis Rivera
  • AUTOMATIC TORQUE CALIBRATION FOR ROLLER SHADES
    Publication number: 20150275574
    Abstract: A method that detects obstacles on a roller shade's travel that create excess torque by sensing the current draw from a motor and method by which the motor can calibrate itself to detect excess torque. During the roller shade's travel, it will record the instantaneous torque being generated at various points. For example, it will store the greatest value in the shade motor's non-volatile memory as the normal operating torque.
    Type: Application
    Filed: April 1, 2014
    Publication date: October 1, 2015
    Applicant: Crestron Electronics, Inc.
    Inventors: Charles Derk, JR., Ben Slivka, Luis Rivera