Patents by Inventor Robert E. Waddell

Robert E. Waddell 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: 4020517
    Abstract: A dockboard for use on a loading dock to provide a ramp between the dock and a platform of an adjacent vehicle, the dockboard being of the type that has a dock plate movable between a flat disposition on the surface of the dock to an inclined loading or unloading position. The dock plate is supported on a transverse cross bar adjacent the outer edge thereof with pairs of downwardly projecting arms secured to the dock plate and straddling the cross bar for support of the dock plate thereon while allowing relative movement therebetween to accommodate slight vertical or tilting movement of the dock plate to conform with the bed of an adjacent vehicle during unloading or loading and also to permit easy removal of the dock plate from the cross bar. The cross bar is supported by a pair of vertical posts mounted in guide channels to restrict movement of the cross bar and outer edge of the dock plate in a generally vertical direction with the inner end of the dock plate being free to slide on the dock surface.
    Type: Grant
    Filed: February 26, 1976
    Date of Patent: May 3, 1977
    Inventor: Robert E. Waddell