Patents by Inventor David Todd Shaffer

David Todd Shaffer 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: 6091370
    Abstract: A continuous method of fabricating multiple band antennas having first and second conductive wire lengths that are partially overlapped a selected distance, at least one of the wire lengths being insulated, includes the steps of: severing a first end of at least one of the wire lengths from a second end of a preceding antenna; defining an overlap portion of the first conductive wire length coextending a selected distance along and adjacent an overlap portion of the second conductive wire length, defining an overlap; and severing the second end of at least one of the wire lengths from a first end of another of the one of the wire lengths after the overlap is defined. At least one of the conductive wire lengths is insulated. The overlap portions of the conductive wire lengths and the insulation therebetween comprise and define a mechanical and a reactive coupling.
    Type: Grant
    Filed: August 27, 1998
    Date of Patent: July 18, 2000
    Assignee: The Whitaker Corporation
    Inventor: David Todd Shaffer
  • Patent number: 6056579
    Abstract: A circuit card assembly (10) including a circuit card such as a terminator card (12) and a holder (14), insertable into a receptacle connector (20) of a mother board. Card (12) is snapped into the holder and maintained therein so that the assembly is manipulatable as a unit. Latch arms (56, 58) along side sections (52, 54) of the holder latch the assembly into guides (16, 18) of the receptacle connector.
    Type: Grant
    Filed: July 16, 1998
    Date of Patent: May 2, 2000
    Assignee: The Whitaker Corporation
    Inventors: George Gilman Richards, III, Brent David Yohn, Andrew D. Balthaser, Robert Alan Kirker, David Todd Shaffer