Patents by Inventor Douglas L. Stevens

Douglas L. Stevens 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: 5345895
    Abstract: A livestock feeder wagon includes a floor having as peripheral side wall extended upwardly therefrom to define a shallow open-topped manger for receiving and dispensing a variety of feeds. A peripheral outer rack extends upwardly from adjacent the periphery of the manger and includes a plurality of horizontally spaced apart upright outer bars, each adjacent pair defining a first feed opening. An inner rack is situated interiorly of the outer rack and includes a plurality of horizontally spaced apart inner bars extending downwardly and inwardly from the outer rack with each adjacent pair of inner bars defining a second feed opening. The lower end of each inner bar extends through a respective hole in the floor of the wagon in slide fit relation so that the inner bar is free to flex through a limited vertical movement relative to the floor whereby the inner rack acts as a shock absorber to protect both the feeder wagon and the livestock.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: September 13, 1994
    Inventors: Douglas L. Stevens, Robert L. Wiese