Patents by Inventor George H. Heidinger

George H. Heidinger 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: 4876514
    Abstract: A switching system for powering first and second electrical loads from a voltage supply, the electrical loads being operable from controls and adapted to be connected to the voltage supply by the switching system. The switching system includes switching circuitry having a control element which is responsive to a control voltage difference to cause the switching circuitry to become conductive, the switching circuitry having a switch terminal connected to a first supply line and another switch terminal connected to the first electrical load. The switching system also includes additional circuitry responsive to the controls for generating the control voltage difference when the voltage supply is connected to the first supply line thereby powering the first electrical load from the first supply line. The switching system further includes further circuitry responsive to the controls for generating first and second control signals.
    Type: Grant
    Filed: June 24, 1988
    Date of Patent: October 24, 1989
    Assignee: Peabody Coal Company
    Inventors: Vernon C. Evans, George H. Heidinger
  • Patent number: 4841159
    Abstract: A switching system for powering first and second electrical loads from a voltage supply, the electrical loads being operable from controls and adapted to be connected to the voltage supply by the switching system. The switching system includes switching circuitry having a control element which is responsive to a control voltage difference to cause the switching circuitry to become conductive, the switching circuitry having a switch terminal connected to a first supply line and another switch terminal connected to the first electrical load. The switching system also includes additional circuitry responsive to the controls for generating the control voltage difference when the voltage supply is connected to the first supply line thereby powering the first electrical load from the first supply line. The switching system further includes further circuitry responsive to the controls for generating first and second control signals.
    Type: Grant
    Filed: August 29, 1986
    Date of Patent: June 20, 1989
    Assignee: Peabody Coal Company
    Inventors: Vernon C. Evans, George H. Heidinger