Patents by Inventor Louis R. Calkins

Louis R. Calkins 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).

  • Patent number: 8508374
    Abstract: A motor power module is provided that includes a control board mounted to the terminals of a relay. The control board includes a control circuit with a processor. The processor is operative to monitor a level of current supplied by the control circuit to at least one windings terminal connected to a single phase AC motor. The processor is responsive to monitored level of current corresponding to a predetermined level to cause the control circuit to remove a supply of electrical power from a start capacitor of the start windings of the motor while the control circuit continues to supply electrical power to the run windings of the motor.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: August 13, 2013
    Assignee: SJE-Rhombus
    Inventors: Aaron R. Wolfe, William D. Chandler, Jr., Louis R. Calkins