Patents by Inventor Richard S. Hartley

Richard S. Hartley 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).

  • Worm with deflector
    Patent number: 3984056
    Abstract: A mixer-grinder for food products, particularly meat products, which includes a hopper for receiving the products, mixing arms rotatable in the hopper, a barrel extending from the hopper and a worm rotatably mounted within the hopper and extending into the barrel. The worm is provided with a deflector at the entrance to the barrel which deflects or kicks out frozen particles of food and prevents accumulation of frozen chips within the barrel, and consequent stalling of the machine.
    Type: Grant
    Filed: September 4, 1974
    Date of Patent: October 5, 1976
    Assignee: Hobart Corporation
    Inventor: Richard S. Hartley