Patents by Inventor Robert J. McIver

Robert J. McIver 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: 5603382
    Abstract: This invention is an improved shovel attachment adapted for being mounted by the customary three-point hitch connection with a tractor enabling the shovel attachment to be carried on the tractor and raised or lowered by the preexisting hydraulic control mechanism of the tractor. The improved shovel attachment features a hydraulically actuated, ejector type blade that is forcibly transported across the floor of the carrying bowl of the shovel attachment for positive ejection of a load of earth fill materials from the same. The hydraulically actuated cylinder is pivotally connected with the rear surface of the ejector blade on one end and pivotally connected to an appropriate portion of the tractor at the other end thereof enabling the blade to be operated throughout the vertical limits of travel of the shovel attachment. The hydraulic cylinder is designed to be adapted to the preexisting hydraulic actuation mechanism associated with the tractor.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: February 18, 1997
    Inventor: Robert J. McIver