Patents by Inventor William M. McCarty

William M. McCarty 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).

  • Heat pump frost control system
    Patent number: 4102391
    Abstract: The present invention relates to a self-contained air conditioning unit including a reversible refrigeration system and more particularly to a control system having a plurality of sensing means that are effective in maintaining operation of the unit in a heat pump mode when the ambient and the surface temperature of selected refrigeration components are above a preselected frosting temperature.
    Type: Grant
    Filed: March 10, 1977
    Date of Patent: July 25, 1978
    Assignee: General Electric Company
    Inventors: Joseph R. Noland, William M. McCarty