Trent A Luoma

US Patent:

20120073890, Mar 29, 2012

Filed:

Sep 23, 2011

Appl. No.:

13/241607

Inventors:

Reginald M. Bindl - Dubuque IA, US
Fancisco Ruiz - Madrid, ES
Angel Torrado - Madrid, ES
Trent A. Luoma - Dubuque IA, US
Nathan J. Horstman - Durango IA, US

International Classification:

E02F 3/76
B60K 6/00
B60K 17/04
B60K 17/16
F16H 1/20
F16H 37/06

US Classification:

180 696, 74425, 180374, 180375

Abstract:

A work vehicle comprises a frame, a circle gear mounted to the frame to rotate relative thereto, a moldboard coupled to the circle gear to rotate therewith, and a circle drive gearbox comprising gearing, a first worm, and a second worm, the gearing meshing with the circle gear, the first and second worms meshing with the gearing.

US Patent:

8573337, Nov 5, 2013

Filed:

Jul 11, 2012

Appl. No.:

13/546041

Inventors:

Trent A. Luoma - Dubuque IA, US
Dharmendra Sharma - Bokaro Thermal, IN

Assignee:

Deere & Company - Moline IL

International Classification:

B60G 5/00

US Classification:

180 2411, 180378, 280676

Abstract:

A tandem housing for a motor grader comprises an exterior multi-layer first wall, an exterior second wall, and an exterior rim. The first wall comprises a main plate and a reinforcement plate reinforcing the main plate. The rim is coupled to the first wall and the second wall so as to provide a periphery of the tandem housing laterally between the first wall and the second wall. The main plate, the reinforcement plate, and the rim cooperate to provide a weld groove. A weld is positioned in the weld groove.

US Patent:

20190283817, Sep 19, 2019

Filed:

May 31, 2019

Appl. No.:

16/428076

Inventors:

- Moline IL, US
Steven R. Whiteman - Dubuque IA, US
Trent A. Luoma - Dubuque IA, US

International Classification:

B62D 55/104

Abstract:

A suspension system supports a chassis relative to a crawler mechanism including a continuous track. A link is rotatable about an axis extending transversely through a first portion. The first portion includes a projections extending radially inwardly, and peripheral openings defined by spaces between the projections. An axle member secured to the crawler mechanism includes peripheral shafts extending radially outward from the axis and positioned in an associated peripheral opening. Each resilient member is positioned within an associated peripheral opening and engages an associated peripheral shaft, damping movement of the peripheral shaft relative to the link. An auxiliary roller assembly includes a yoke and a plurality of auxiliary rollers coupled to the yoke. The yoke is rotatable relative to the crawler frame about a yoke axis. The auxiliary rollers are aligned along a direction of travel of the track and are configured to engage an inner surface of the track.

US Patent:

20180251171, Sep 6, 2018

Filed:

Mar 1, 2017

Appl. No.:

15/446924

Inventors:

- Moline IL, US
Steven R. Whiteman - Dubuque IA, US
Trent A. Luoma - Dubuque IA, US

International Classification:

B62D 55/104
B62D 55/24

Abstract:

A suspension system supports a chassis relative to a crawler mechanism that includes a continuous track. A link is rotatable about an axis extending transversely through a first portion. The first portion includes a projections extending radially inwardly, and peripheral openings defined by spaces between the projections. An axle member secured to the crawler mechanism includes peripheral shafts extending radially outward from the axis and positioned in an associated peripheral opening. Each resilient member is positioned within an associated peripheral opening and engages an associated peripheral shaft, damping movement of the peripheral shaft relative to the link. The suspension system further includes an auxiliary roller assembly including a yoke and a plurality of auxiliary rollers coupled to the yoke. The yoke is rotatable relative to the crawler frame about a yoke axis. The plurality of auxiliary rollers is aligned along a direction of travel of the continuous track and is configured to engage an inner surface of the track.

US Patent:

20150336609, Nov 26, 2015

Filed:

May 23, 2014

Appl. No.:

14/286559

Inventors:

Brent A. Smith - Peosta IA, US
Mark E. Hull - Peosta IA, US
Nathan J. Horstman - Durango IA, US
Jeffrey A. Bauer - Dubuque IA, US
Trent A. Luoma - Dubuque IA, US
Neil V. Harber - Holy Cross IA, US

International Classification:

B62D 11/00
B62D 12/00
F16H 61/47

Abstract:

A vehicle and drive system control method for a vehicle including first and second traction elements coupled to the vehicle, a variable displacement pump, a bi-directional variable displacement first motor coupled to the first traction element, and a bi-directional second motor coupled to the second traction element. The pump, and first and second motors are coupled fluidly in series with one another. A control unit can determine a desired speed for the traction elements, and determine pump, first and/or second motor displacements based on the desired speed. First and second speed sensors can sense output speeds of the motors, and the pump, first and/or second motor displacements can be determined based on the motor output speeds. Articulation and steering sensor signals can also be used to determine pump, first and/or second motor displacements.