Patents by Inventor Richard S. Grear

Richard S. Grear 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: 4262751
    Abstract: In an agricultural implement for use in ground breaking procedures including a frame adapted to be moved over the underlying terrain in a given direction, at least one ground breaking tool, a pivot connecting the tool to the frame for pivotal movement thereon about a generally horizontal axis generally transverse to the direction of movement between a forwarding ground breaking position and a rearward inoperative position and releasable means interconnecting the tool and the frame for normally holding the tool in the forward position and for releasing the tool for movement to the rearward position upon the tools encountering resistance sufficient to damage the implement.
    Type: Grant
    Filed: June 8, 1979
    Date of Patent: April 21, 1981
    Assignee: Royal Industries, Inc.
    Inventor: Richard S. Grear