Robert T Henson

US Patent:

7631478, Dec 15, 2009

Filed:

May 5, 2006

Appl. No.:

11/429367

Inventors:

Robert Alan Henson - Charlotte NC, US
Harlin James Trefz - Jackson TN, US
Thomas Gregory Bartlett - Pineville NC, US

Assignee:

Deere & Company - Moline IL

International Classification:

A01B 73/00

US Classification:

56228, 56 7, 56 153

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.

US Patent:

20090222175, Sep 3, 2009

Filed:

Feb 28, 2008

Appl. No.:

12/039328

Inventors:

Robert A. Henson - Charlotte NC, US

International Classification:

G06F 19/00

US Classification:

701 50

Abstract:

A control system is provided for starting electrically powered implements on a vehicle such as a grass mowing machine with electrically powered cutting reels. The electric motors are started at intervals, rather than simultaneously. The intervals between starting each electric motor may be based on pre-defined criteria such as a fixed time constant, voltage, current or speed input from a motor controller for each implement.