Patents by Inventor Harold A. Shelley

Harold A. Shelley 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).

  • Screw conveyor
    Patent number: 5279501
    Abstract: A screw conveyor in which mixing and flow-directing paddles are selectively adjustable for use on a wide variety of materials having dissimilar flow characteristics. The adjustable paddles are advantageously applied to a screw, or auger, conveyor of an asphalt paving machine to convey a sufficient amount of unsegregated paving material beneath a center drive case or other problem distribution area.
    Type: Grant
    Filed: June 15, 1992
    Date of Patent: January 18, 1994
    Assignee: Caterpillar Paving Products Inc.
    Inventor: Harold A. Shelley
  • Paving material distribution system
    Patent number: 5232305
    Abstract: A paving material distribution system for uniformly distributing a layer of paving material includes a containment member that is slidably mounted on the rear frame of a paving machine. A first means for conveying paving material laterally with respect to the direction of travel of the paving machine is positioned at a preselected distance from the containment member. Power means are also included to controllably, simultaneously move the containment member and the first means in a substantially vertical direction.
    Type: Grant
    Filed: May 15, 1991
    Date of Patent: August 3, 1993
    Assignee: Caterpillar Paving Products Inc.
    Inventors: James H. Bassett, James J. Plociennik, Jay A. King, James M. Reiseck, Harold A. Shelley