Thomas L Bartlett

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:

8235151, Aug 7, 2012

Filed:

Aug 14, 2007

Appl. No.:

11/838382

Inventors:

Dimitri Nunez - Waxhaw NC, US
Franklin Patrick Lewis - Fuquay-Varina NC, US
Damon C. Green - Garner NC, US
Brad A. Hoffman - Angier NC, US
John W. Wall - Staley NC, US
Michael David - Fuquay-Varina NC, US
Curtis Ayers - Willow Springs NC, US
Thomas G. Bartlett - Apex NC, US

Assignee:

Deere & Company - Moline IL

International Classification:

A01D 69/10

US Classification:

180 632, 56 108, 56 112, 56 113, 180 62, 180 193, 180315

Abstract:

A return to neutral control mechanism for a zero turning radius mower is disclosed. The return to neutral control mechanism includes a pair of control levers pivotable between forward, neutral and reverse positions. A brake pedal is moveable between a disengaged position to an engaged position. In response to engagement of the brake pedal, a control pivot attached to each control lever moves each control lever to the neutral position. The return to neutral control mechanism may include a cam that rotates in response to engagement of the brake pedal, and a control pivot that follows the cam during engagement of the brake pedal.

US Patent:

54331161, Jul 18, 1995

Filed:

Feb 24, 1994

Appl. No.:

8/201171

Inventors:

Kevin S. Ahlstrom - Waxhaw NC
Thomas Bartlett - Waxhaw NC

Assignee:

On Line, Inc. - Waxhaw NC

International Classification:

G01N 308

US Classification:

73828

Abstract:

The prevailing tension in an elongate strand, such as a textile yarn, is instantaneously measured, even at very low levels of tension and at fine incremental changes in tension, by a tension measuring apparatus utilizing a pair of fixed contact arms spaced from one another to define a strand contact line therebetween and an intermediate cantilevered sensing arm disposed at an equal spacing from each fixed contact arm and at a lateral spacing from the stand contact line. The fixed contact arms and the sensing arm are contacted with the strand simultaneously at the same common lateral side of the strand to cause the strand to deflect from the strand contact line at equivalent strand break angles between the respective strand contact points on the fixed contact arms and on the sensing arm. An electrically powered strain gauge, preferably incorporating a Wheatstone bridge circuit, is associated with the sensing arm to generate a continuous electrical output signal varying instantaneously in proportion to the corresponding instantaneous tension prevailing in the strand while in contact with the fixed contact arms and the sensing arm. In one embodiment, the measuring apparatus is contained within a portable hand-held housing for manual placement in contact with a strand whose tension is to be measured, with an auxiliary hand-held housing supplying electrical power to the strain gauge and containing a microprocessor to compute a quantitative tension value from the output signal received from the strain gauge.