Patents by Inventor David L. McFarren

David L. McFarren 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 bin delivery and metering apparatus
    Patent number: 4034898
    Abstract: Apparatus for positively encouraging a flow of feed from a bulk storage bin to a receiver or conveyor and for supporting the weight of feed in the bin is disclosed. A rotating disk mounted in the plane of the bin exhaust forms apertures with the bin sides and an exhaust collar. These apertures encourage flow of feed from the bin and uniform delivery to the receiver or conveyor. A wand, carried by the rotating plate, extends into the bin to dislodge feed packed or bridged across the bin exhaust opening.
    Type: Grant
    Filed: December 22, 1975
    Date of Patent: July 12, 1977
    Assignee: Chore-Time Equipment, Inc.
    Inventors: Raymond W. Marttila, David L. McFarren