Patents by Inventor Bruce Williscraft

Bruce Williscraft 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).

  • Cutting tools
    Patent number: 3997951
    Abstract: This invention is the method and apparatus for locking an indexable replaceable cutting tool insert into a cutting tool holder using a tilting pin type device consisting of a pivotally recessed pin with a resilient member and set screw which lock the insert into an insert pocket of the tool holder.
    Type: Grant
    Filed: March 15, 1976
    Date of Patent: December 21, 1976
    Assignee: Ex-Cell-O Corporation
    Inventor: Bruce Williscraft