Patents by Inventor Bobby R. Boyette

Bobby R. Boyette 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: 4516449
    Abstract: An improved tool holder for stripping work pieces from dies includes a cylindrical mandrel having a slotted boss extending axially from the upper end thereof. A plurality of tapped holes and a plurality of spring receiving holes extend into the upper end of the mandrel parallel to the axis thereof. A tubular collar includes a closed lower end having an axially disposed hole for receiving the slotted boss of the mandrel therethrough. The closed end of the collar includes a plurality of holes aligned with the spring holes and tapped holes of the mandrel. A piston is slidably received within the collar and about the boss, and includes a resilient bumper projecting outwardly from the end thereof. A first plurality of screws extends through the closed end of the collar and is received in tapped holes in the piston, the heads of the first plurality of screws being disposed in the spring receiving holes of the mandrel.
    Type: Grant
    Filed: December 5, 1983
    Date of Patent: May 14, 1985
    Inventor: Bobby R. Boyette