Patents by Inventor Philip A. Harden

Philip A. Harden 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).

  • Lightweight concave having removable grids
    Patent number: 5613907
    Abstract: The invention is directed to a concave for a rotary crop processing unit for an agricultural combine. The concave comprises a frame to which is releasably mounted a grid. The grid comprises a plurality of curved rods to which are projection welded a series of straight bars. The bars are perpendicular to the rods. The grid is held in place by a mounting assembly which is formed by six mounting ears that are welded to the frame that clamp the grid against a curved rim. A trapping lip is also used to trap one end of the grid in the frame.
    Type: Grant
    Filed: September 22, 1995
    Date of Patent: March 25, 1997
    Assignee: Deere & Company
    Inventor: Philip A. Harden
  • Crop engaging element for an axial agricultural combine
    Patent number: 5376047
    Abstract: An improved crop engaging element for the threshing and separating sections of an axial rotor. The elements comprise a blade having a mounting plate that is mounted to the rotor drum and a sloped crop engaging plate extending upwardly from the mounting plate. The crop engaging plate is provided with a radially extending lip. The crop engaging plate is also provided with a slanted leading edge.
    Type: Grant
    Filed: April 26, 1993
    Date of Patent: December 27, 1994
    Assignee: Deere & Company
    Inventors: Philip A. Harden, Mark F. Stickler