Patents by Inventor Douglas J. Scott

Douglas J. Scott 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).

  • Device for increasing the torque applied to a hand tool
    Patent number: 4007651
    Abstract: A generally disc shaped tool shaft holder with an opening at its center adapted to accept a tool shaft, and a plurality of openings about its periphery, each of which is designed to accept a lever arm. The holder is divided into an inner and an outer section which may be detached from one another. The outer section may be used with a number of different inner sections, each of which is adapted for use with a particular tool.
    Type: Grant
    Filed: October 1, 1975
    Date of Patent: February 15, 1977
    Inventor: Douglas J. Scott