Patents by Inventor William L. Colwell

William L. Colwell 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: 4334730
    Abstract: A coupling suited for insulated from ground mounting through an opening in a panel. The coupling includes an outer shell dimensioned and shaped to extend through the opening in the panel. The outer shell has an interruption in the outer surface thereof. The interruption is located intermediate the ends of the outer shell. An insulated mounting member is provided which is associated with the outer shell. The insulated mounting member is disposed intermediate the ends of the outer shell and is dimensioned and shaped such that at least a portion thereof extends through the opening in the panel. The insulated mounting member cooperates with the interruption so as to be in integral relationship with the outer shell. The coupling is suitably manufactured by molding the insulated mounting member about the outer shell. With these features of construction, the coupling is adapted for insulated from ground mounting through an opening in a panel.
    Type: Grant
    Filed: November 26, 1979
    Date of Patent: June 15, 1982
    Assignee: Bunker Ramo Corporation
    Inventors: William L. Colwell, Carl W. Schmelzle