Patents by Inventor Mark Leonard Pearson

Mark Leonard Pearson 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).

  • Broadcast width and location control for a combine spreader
    Patent number: 7306174
    Abstract: A work vehicle having a fluent material spreader comprising two counter-rotating variable speed impellers adapted to receive and broadcast fluent material. A right-side impeller broadcasts out to a right-side material broadcast width, and left-side impeller broadcasts out to a left-side material broadcast width. Rotational speed of the right-side impeller is commanded to achieve a desired a right-side material broadcast width, and rotational speed of the left-side impeller is commanded to achieve a desired a left-side material broadcast width. Command of the right-side and left-side impellers is achieved either manually by and operator, or automatically by a control system based on sensor input.
    Type: Grant
    Filed: March 4, 2004
    Date of Patent: December 11, 2007
    Assignee: Deere & Company
    Inventors: Mark Leonard Pearson, Ryan Patrick Mackin