Patents by Inventor Billy B. Willis

Billy B. Willis 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).

  • Combined chopper and impeller for an axial flow combine
    Patent number: 4342319
    Abstract: An axial flow combine with a transverse rotor (18) employs a combined impeller and chopper (66) having knives which strip crop material from a rotor discharge paddle impeller (34), chop it in cooperation with selectively retractible blades (96) and throw it rearwardly through a discharge passageway (56) to a downwardly opening discharge (57). The chopper (66) may be driven at either one of two speeds and eliminates the need for the usual impeller employed to move crop material from the threshing rotor discharge impeller (34) to the rear discharge (57) of the combine.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: August 3, 1982
    Assignee: Allis-Chalmers Corporation
    Inventors: Billy B. Willis, L. Michael Fetters