Patents by Inventor Patrick J. Sampson

Patrick J. Sampson 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).

  • Open-end wrench with reduced size jaws
    Patent number: 5074171
    Abstract: The one-piece, open-end wrenching head includes two substantially equal-length jaws with a throat recess therebetween. The jaws respectively include driving surfaces spaced apart a distance slightly greater than the across-flats dimension of an associated hexagonal fastener, with each driving surface having a length no greater than the length of one of the flat sides of the associated fastener and having a serrated region thereon. The distance from the deepest part of the throat to an imaginary line connecting the distal ends of the jaws is approximately 0.86 times the across-flats dimension of the fastener.
    Type: Grant
    Filed: October 29, 1990
    Date of Patent: December 24, 1991
    Assignee: Snap-on Tools Corporation
    Inventors: Jeffrey R. Annis, Richard S. Goergen, Jr., Frank Mikic, Patrick J. Sampson