Patents by Inventor John T. Hankins

John T. Hankins 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: 4167809
    Abstract: A bearing sleeve extractor assembly includes a movable workpiece support on a stand having an overhead circular spray head to receive a multi-surfaced elongated bearing sleeve connected to a support member and wherein the spray head includes a perforated inner wall and an insulated outer wall having a heated vapor chamber therebetween connected to a heat source for directing heated vapor into the spray head for distribution therefrom to produce even convection heating of the bearing sleeve continuously circumferentially therearound so as to produce a non-mechanical thermal release of the bearing sleeve from its support member.
    Type: Grant
    Filed: November 10, 1977
    Date of Patent: September 18, 1979
    Assignee: General Motors Corporation
    Inventors: Wilford B. Boyland, John T. Hankins