Patents by Inventor Thomas Gregory Bartlett

Thomas Gregory Bartlett 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: 7631478
    Abstract: An electric implement lift system for mower cutting units may include an electric motor having a rotatable output shaft with a pivot bracket mounted thereto, a lift link or a pair of lift links, each lift link having a first end connected to the pivot bracket and a second end connected to a lift arm, the output shaft rotatable in a first direction to raise the mower cutting unit and in a second direction to lower the mower cutting unit. The output shaft may be rotatable in the first direction to move the cutting unit to a top/center position and rotatable further in the first direction to move the cutting unit to a raised/transport position.
    Type: Grant
    Filed: May 5, 2006
    Date of Patent: December 15, 2009
    Assignee: Deere & Company
    Inventors: Robert Alan Henson, Harlin James Trefz, Thomas Gregory Bartlett