Patents by Inventor Rupert L. Spencer

Rupert L. Spencer 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: 4245581
    Abstract: A particulate material dispenser for use with a conveyor system wherein particulate material is applied to a plurality of substrate receiving bases carried on the conveyor system; comprising a hopper mounted on a frame over a portion of the conveyor system and having a front wall, a rear wall, a pair of spaced vertical side walls, and a reduced bottom wall. The bottom wall is provided with a plurality of spaced and aligned openings for allowing the passage of particulate material therethrough. An agitator shaft is disposed horizontally above the openings and has opposite ends journalled in the side walls. A plurality of tines are mounted on the agitator shaft and extend downwardly therefrom so that their lower ends are adjacent the openings. A motor is connected to the agitator shaft through intermediate collar rods, links, etc. to oscillate the shaft so to cause the tines to swing in an arc above the openings thereby urging the particulate material through the openings.
    Type: Grant
    Filed: November 16, 1979
    Date of Patent: January 20, 1981
    Assignee: The Pillsbury Company
    Inventor: Rupert L. Spencer