Patents by Inventor William S. Hohulin

William S. Hohulin 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).

  • Control system hub for blower controls
    Patent number: 10989206
    Abstract: A fan control system has a fan duct, a fan mounted in the duct, an electronic commutator (EC) motor for driving the fan, and a control system hub for controlling the EC motor. A pressure differential sensing system is mounted in association with duct and feeding a pressure differential signal to the control system hub. An input device mounted on the control system hub for scaling an output signal from a low percent extreme to a high percent extreme and sends that output signal to the EC motor. Wherein the control system hub speeds, slows or switches OFF the EC motor according to the pressure differential signal except that the input device sets a speed limit ceiling on the EC motor.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: April 27, 2021
    Assignee: Loren Cook Company
    Inventors: Jeffery F. Kallenberger, James L. E. Meats, William S. Hohulin, Robert A. Valbracht, Rickey W. Jennings