Patents by Inventor Martin L. Thompson

Martin L. Thompson 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).

  • Wrench with nut-retaining mechanism
    Patent number: 4570513
    Abstract: A box wrench has a mechanism for releasably locking a nut or bolt in the receiving cavity of the wrench, the mechanism comprising a detent which may be projected into the cavity or withdrawn from the cavity, an actuating lever for the detent on the outside of the wrench, and a thumb-operated keeper conveniently located on the wrench handle for controlling the position of the lever so that the detent can be projected and withdrawn without a user having to release the handle.
    Type: Grant
    Filed: February 1, 1984
    Date of Patent: February 18, 1986
    Inventor: Martin L. Thompson