Patents by Inventor J. B. Threat

J. B. Threat 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: 4260136
    Abstract: A suspension hook assembly for a hoist in which the shank of the hook is received between an assembled pair of half-cylindrical members held together by a ring. A pin member received between spaced frame members of the hoist extends through aligned holes in the assembled half-cylindrical members, and the ring is positioned axially between the pin and outwardly directed projections formed on the half-cylindrical members. The hook then pivots about a first axis through its shank, and the hook assembly pivots about a second, perpendicular, axis through the pin.
    Type: Grant
    Filed: March 3, 1980
    Date of Patent: April 7, 1981
    Assignee: Eaton Corporation
    Inventors: James R. Harman, William M. Larson, J. B. Threat