Patents by Inventor Edward T. Arnn

Edward T. Arnn 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: 6128983
    Abstract: A drive tool for use in driving a fastener having a combination head having slots to accommodate either a flat-blade screwdriver or a Phillips-type screwdriver, the drive tool having both a flat-blade and a Phillips-type blade, and foot portions positioned on each of said flat-blade and said Phillips-type blade for engaging the slots in the combination head. Additionally, a centering tip is provided that fits into the slots of the combination head and allows the drive tool to be guided into proper position by the slots.
    Type: Grant
    Filed: January 6, 1999
    Date of Patent: October 10, 2000
    Inventor: Edward T. Arnn
  • Patent number: 4105056
    Abstract: A screw driver having a foot portion on the lower extremity of its blade which includes opposed upstanding faces of a height less than the depth of a screw slot into which they are inserted to increase the effectiveness of the blade in gripping the sidewalls of a screw slot and yet provide a durable wear resistant screw driver.
    Type: Grant
    Filed: October 14, 1975
    Date of Patent: August 8, 1978
    Inventor: Edward T. Arnn