Patents by Inventor David Michael DeChristopher

David Michael DeChristopher 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).

  • Locking system for attaching a threshing and/or separating element to a rotor of a threshing system
    Patent number: 7632182
    Abstract: A locking system for attaching a threshing and/or separating element to a mounting lug on a rotor of a threshing system of an agricultural combine, including a single bolt attachment with multiple points of contact between the element and the lug created by a convex portion extending from an inner surface of the threshing and/or separating element cooperatively engaged in a recessed portion of the mounting lug. The locking system resists loading conditions generated when the crop mat engages the element, prevents radially outward movement of the threshing and/or separating element relative to the mounting lug, and reduces the stress on the mounting hardware during harvesting operations.
    Type: Grant
    Filed: December 10, 2007
    Date of Patent: December 15, 2009
    Assignee: CNH America LLC
    Inventors: Herbert M. Farley, Wayne Flickinger, Mark Luke Nolt, Luke W. Morrie, David Michael DeChristopher, F. Jay Eichelberger
  • Locking system for attaching a threshing and/or separating element to a rotor of a threshing system
    Publication number: 20080167100
    Abstract: A locking system for attaching a threshing and/or separating element to a mounting lug on a rotor of a threshing system of an agricultural combine, including a single bolt attachment with multiple points of contact between the element and the lug created by a convex portion extending from an inner surface of the threshing and/or separating element cooperatively engaged in a recessed portion of the mounting lug. The locking system resists loading conditions generated when the crop mat engages the element, prevents radially outward movement of the threshing and/or separating element relative to the mounting lug, and reduces the stress on the mounting hardware during harvesting operations.
    Type: Application
    Filed: December 10, 2007
    Publication date: July 10, 2008
    Inventors: Herbert M. Farley, Wayne Flickinger, Mark Luke Nolt, Luke W. Morrie, David Michael DeChristopher, F. Jay Eichelberger