Patents by Inventor Dan C. Pearce

Dan C. Pearce 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: 5438894
    Abstract: A socket wrench extension generally comprises a socket mounting bottom end portion, a shank portion and a torque receiving top end portion adapted to receive a variety of torque transferring tools. In a preferred embodiment, the top end portion includes a free end face, an axial, drive-receiving recess in the free end face, and an outer peripheral wall that extends to the free end and is substantially a regular polygon in cross-section having diametrically opposed parallel flats for receiving an open-end wrench, a box wrench, flat reversible ratchet wrench or socket wrench. The top end portion also includes diametrical bores therethrough through each flat and a radially protruding shoulder at the bottom of each flat. The recess includes a bottom end having a slot for receiving a screwdriver drive.
    Type: Grant
    Filed: July 25, 1994
    Date of Patent: August 8, 1995
    Inventor: Dan C. Pearce