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:
Feb. 17, 2026

Filed:

Feb. 16, 2023
Applicant:

Deere & Company, Moline, IL (US);

Inventors:

Grant R. Henn, Dubuque, IA (US);

Michael R. Elgin, Dubuque, IA (US);

Brett S. Graham, Dubuque, IA (US);

Karl G. Heine, Dubuque, IA (US);

Jason Bennett, Dubuque, IA (US);

Assignee:

Deere & Company, Moline, IL (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02F 3/43 (2006.01); E02F 3/34 (2006.01);
U.S. Cl.
CPC ...
E02F 3/431 (2013.01); E02F 3/3414 (2013.01);
Abstract

A construction machine includes a machine frame, a plurality of ground engaging wheels or tracks supporting the machine frame, a work implement, and a lifting linkage connected to the work implement for lifting and lowering the work implement relative to the machine frame. A position sensor is operably associated with the lifting linkage for generating a position signal representative of a position of the lifting linkage within a range of motion. A hydraulic actuator is connected to the lifting linkage for moving the lifting linkage through the range of motion. A hydraulic pressure supply system provides hydraulic pressure to the hydraulic actuator. A controller is configured to receive the position signal and to generate a control signal to vary a system relief pressure of the hydraulic pressure supply system at least in part in response to the position signal.


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