Patents by Inventor Frank Louis Duncan

Frank Louis Duncan 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).

  • Electrical connector seal cap assembly
    Patent number: 5746611
    Abstract: An electrical connector seal cap assembly (10), includes a seal cap (20) with a seal cap gasket (28) bonded thereto, which cap is assembled to an electrical connector (30). The seal cap (20) is pressed into engagement with the electrical connector (30) by action of screw (19). As this occurs, seal cap gasket (28) is sealingly pressed against sealing interface surface (38) of electrical connector (30). Gussets (22) of seal cap (20) advantageously distribute the compressive forces generated by screw (19) in the area of the interface between seal interface (38) and seal cap gasket (28) thereby creating an effective seal against sprays or other air-borne, high velocity contaminants.
    Type: Grant
    Filed: July 15, 1996
    Date of Patent: May 5, 1998
    Assignee: The Whitaker Corporation
    Inventors: Michael Dale Brown, Frank Louis Duncan, Ralph Talmadge Bentley, II