Patents by Inventor Robert D. Dingman

Robert D. Dingman 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).

  • Driven roller for accumulator conveyor
    Patent number: 4421224
    Abstract: A live roller drive mechanism for use in an accumulating conveyor comprising a driving roller and a load supporting driven roller. A drive sleeve is disposed loosely over the end of the driven roller and is coupled to the driven roller in such a way as to permit relative annular and axial motion. The drive sleeve is spring urged into face-to-face engagement with an annular member mounted on the driving roller to provide a slip-friction drive.
    Type: Grant
    Filed: November 30, 1981
    Date of Patent: December 20, 1983
    Inventor: Robert D. Dingman