Patents by Inventor David Norman Radford

David Norman Radford 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).

  • Vertical lift assembly
    Patent number: 6938751
    Abstract: A vertical lift assembly for raising a plurality of diverting belts between rollers of a roller conveyor, to engage and raise an object from the surface of the conveyor, and to divert it to the side of the conveyor. The vertical lift assembly uses a plurality of hinges to join together a stationary frame, as a base, and a raisable plate on which sets the diverting belt assembly. The hinge is formed from a section of roller chain. A pair of hinges is disposed along each side of the stationary frame and raisable plate. The hinges provide tilt-free lift of the diverting belt assembly.
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: September 6, 2005
    Assignee: TKF, Inc.
    Inventors: Ronald L. Eubanks, David Norman Radford