The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 23, 2021

Filed:

Feb. 28, 2018
Applicant:

Deere & Company, Moline, IL (US);

Inventors:

David J. Myers, Asbury, IA (US);

Doug M. Lehmann, Centralia, IA (US);

Aaron R. Kenkel, East Dubuque, IL (US);

Kyle E. Leinaar, Dubuque, IA (US);

Brian K. Kellogg, Bellevue, IA (US);

Assignee:

DEERE & COMPANY, Moline, IL (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02F 9/22 (2006.01); E02F 3/42 (2006.01); E02F 3/28 (2006.01); E02F 9/20 (2006.01); E02F 3/342 (2006.01);
U.S. Cl.
CPC ...
E02F 3/422 (2013.01); E02F 3/283 (2013.01); E02F 9/2004 (2013.01); E02F 9/2225 (2013.01); E02F 9/2267 (2013.01); E02F 9/2271 (2013.01); E02F 3/342 (2013.01);
Abstract

A work machine includes a mechanical arm and a work implement coupled to the mechanical arm. The work implement is configured to receive a load. A hydraulic actuator is coupled to the mechanical arm to move the arm between a first position and a second position. A sensor unit is configured to detect the load in the work implement. A valve is in fluid communication with the hydraulic actuator for supplying a fluid output to the hydraulic actuator. A controller is in communication with the value and the sensor unit. The controller is configured to transmit a control signal to the valve to adjust the fluid output to the hydraulic actuator, and wherein the controller is configured to derate the fluid output in response to a signal from the sensor unit that a load is at or above a threshold value.


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