Patents by Inventor James D.A. Hartling

James D.A. Hartling 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).

  • Apparatus and method of controlling access to a service area of an equipment cabinet
    Publication number: 20040017643
    Abstract: A cabinet has an opening and a panel which covers the opening. Electrical equipment is disposed in the cabinet and is operable when high voltage is applied thereto. An interlock mechanism is moveable between a locked position in which the panel covers the opening to prevent access to the electrical equipment and an unlocked position in which the panel can be opened or removed to allow access to the electrical equipment. A residual voltage associated with the electrical equipment when high voltage is removed from the electrical equipment is monitored. The interlock mechanism is moved from the locked position to the unlocked position allow access to the electrical equipment when the residual voltage decreases below a predetermined reference value.
    Type: Application
    Filed: July 26, 2002
    Publication date: January 29, 2004
    Applicant: NCR Corporation
    Inventors: James D.A. Hartling, Vernon W. Tarbutt, Brian W. Gamble