Patents by Inventor Edward D. Bittner

Edward D. Bittner 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: 4209280
    Abstract: A load-handling clamp for lift trucks having load-engaging, nonresilient contact pad surfaces specially textured for resisting slippage of the load variably depending on direction of slip. Each load-engaging surface of the contact pads is constructed of a nonresilient material, preferably metal, in which is formed a series of spaced parallel grooves, each having beveled longitudinal edges and lands therebetween, extending generally parallel to the direction of travel of the lift truck. The provision of the grooves and their orientation with respect to the lift truck provide a load-engaging surface having minimal resistance to slippage between pad and load in the direction of travel of the lift truck during engagement of the load by the clamp, but much greater resistance to slippage perpendicular to the grooves for holding the load. In addition, the surface is exceptionally resistant to wear and to clogging with bits of paper or cardboard from the loads handled.
    Type: Grant
    Filed: December 18, 1978
    Date of Patent: June 24, 1980
    Assignee: Cascade Corporation
    Inventor: Edward D. Bittner