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. 16, 2021

Filed:

Jul. 31, 2019
Applicant:

Caterpillar Inc., Deerfield, IL (US);

Inventors:

Travis N. Richards, Chillicothe, IL (US);

Ernest E. Stoops, Decatur, IL (US);

Michael L. Repscher, Taylorville, IL (US);

Stive Ramalho, Isle d'Abeau, FR;

Wesley T. Payne, Plainfield, IL (US);

Assignee:

Caterpillar Inc., Peoria, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02F 9/22 (2006.01); E02F 3/84 (2006.01);
U.S. Cl.
CPC ...
E02F 3/84 (2013.01); E02F 3/841 (2013.01); E02F 3/844 (2013.01); E02F 9/2217 (2013.01); E02F 9/2225 (2013.01); E02F 9/2228 (2013.01); E02F 9/2285 (2013.01); E02F 9/2296 (2013.01);
Abstract

A hydraulic system for a motor grader is disclosed. The hydraulic system may include a first hydraulic subsystem and a second hydraulic subsystem. A pump may be configured to provide pressurized fluid to the first and second hydraulic subsystems. The hydraulic system may further include a control valve located upstream of the first and second hydraulic subsystems. The control valve may be configured to vary a standby pressure of pressurized fluid for use by the first and second hydraulic subsystems.


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