Patents by Inventor Donald D. LaRue

Donald D. LaRue 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).

  • Bulk material hopper
    Patent number: 4630988
    Abstract: A material handling hopper has an open top box with a chamber for holding bulk material. A bottom conveyor operates to remove material from the chamber. A divider located in the chamber reduces the bridging and packing of material in the chamber. The divider is an inverted V-shaped member secured to end walls of the box. The width of the inverted V-shaped member increases in the direction of movement of the conveyor. The divider is covered with low friction material to facilitate the flow of material around the divider.
    Type: Grant
    Filed: July 11, 1984
    Date of Patent: December 23, 1986
    Assignee: Hydrotile Machinery Company
    Inventor: Donald D. LaRue