Todd Michael Wehler

US Patent:

7669395, Mar 2, 2010

Filed:

Dec 13, 2006

Appl. No.:

11/638651

Inventors:

Todd Wehler - Mount Morris IL, US
Wayne Shaw - Sugar Grove IL, US

Assignee:

Woods Equipment Company - Oregon IL

International Classification:

A01D 34/00

US Classification:

56 159, 56 149

Abstract:

An automated system for selecting the cutting height and orientation of a mower deck attached to a power vehicle. An actuator and a system of links and slotted members are configured to operatively couple to a mower deck carriage and a front portion of the mower deck. Operation of the actuator by extending or retracting an actuator length, working in concert with the system of links and members, causes the mower deck to lower or raise in relation to a surface underlying the mower deck. Operation of the actuator further permits the mower deck to be rotated about an axis to and from an operation orientation and a service and or storage orientation. The actuator maintains the position of the mower deck without assistance of additional locking mechanisms or load bearing members. The system is controllable through a single interface convenient to the operator.

US Patent:

6405530, Jun 18, 2002

Filed:

Feb 10, 2000

Appl. No.:

09/501453

Inventors:

Richard D. Brimeyer - Ames IA
Todd M. Wehler - Ames IA

Assignee:

Sauer-Danfoss Inc. - Ames IA

International Classification:

F16D 3102

US Classification:

60444

Abstract:

A hydraulic circuit includes a pump controlled by a two-stage non-feedback proportional control assembly. The first stage of the control assembly includes a single non-feedback proportional control valve that generates a displacement magnitude hydraulic signal that is proportional to an input signal. The second stage of the control assembly includes a directional control valve located downstream of the proportional control valve for conditioning and routing the displacement magnitude signal to the pump with an appropriate directional indicator.