Patents by Inventor John C. Stoops

John C. Stoops 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).

  • Electric hot plate with direct contact P.T.C. sensor
    Patent number: 5397873
    Abstract: Electrical heating apparatus (10) is used in an electric stove (R) having a glass/ceramic cooking surface (S). A pan (12) is mounted adjacent an underside of the cooking surface. An electrical heating element (20) installed in the pan heats a defined area (A) of the cooking surface when electrical current is applied to the element. A sensor (34) installed in direct contact with the cooking surface senses the temperature of the cooking area. A control unit (42), to which an output of the sensor is supplied, is responsive to the output to control current flow to the heating element. This allows the apparatus to respond to temperature changes at the cooking area to insure food is properly cooked.
    Type: Grant
    Filed: August 23, 1993
    Date of Patent: March 14, 1995
    Assignee: Emerson Electric Co.
    Inventors: John C. Stoops, Randall Markum, William W. Holmes