Patents by Inventor John Wayne Robertson

John Wayne Robertson 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: 11920392
    Abstract: A hinge assembly includes first and second hinge units and an electrically conductive pin. The first hinge unit is mounted to a frame structure of an enclosure and includes a pin support comprising a barrel, a knuckle, or both, a pin receptacle arranged in the pin support, and an electrically conductive structure disposed at least partly inside the pin support and adjacent the pin receptacle. The pin rotates in the pin receptacle. The second hinge unit is carried on the pin and is door mounted. The second hinge unit and door can be removed from the first. The electrically conductive structure is biased against the pin and remains in contact while the pin rotates, and is electrically connected to the enclosure when the first hinge unit is mounted to it such that the pin is electrically bonded to the enclosure while the pin rotates.
    Type: Grant
    Filed: January 31, 2022
    Date of Patent: March 5, 2024
    Assignee: Chatsworth Products, Inc.
    Inventors: William Drew Krietzman, Preston Ellis Hennrich, John Wayne Robertson