Patents by Inventor Ralph C. Cannon

Ralph C. Cannon 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).

  • Dolly lock apparatus
    Patent number: 5673834
    Abstract: An apparatus adapted to be mounted to a delivery vehicle for releasably locking a dolly thereto. The apparatus includes a frame and a pair of L-shaped lock arms pivotally connected to the frame. The lock arms are interconnected such that the lock arms counter-rotationally move together between an open position adapted for receiving and releasing the dolly and a closed position adapted for locking the dolly.
    Type: Grant
    Filed: August 13, 1996
    Date of Patent: October 7, 1997
    Inventor: Ralph C. Cannon