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:
Nov. 30, 2021

Filed:

Oct. 25, 2019
Applicant:

Kubota Corporation, Osaka, JP;

Inventors:

Makoto Ono, Sakai, JP;

Kenjiro Honda, Sakai, JP;

Atsushi Matsumoto, Sakai, JP;

Hiromichi Yoshida, Sakai, JP;

Assignee:

KUBOTA CORPORATION, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02F 9/20 (2006.01); E02F 9/22 (2006.01);
U.S. Cl.
CPC ...
E02F 9/2246 (2013.01); E02F 9/2066 (2013.01); E02F 9/2221 (2013.01); E02F 9/2235 (2013.01); E02F 9/2296 (2013.01);
Abstract

A working machine includes a prime mover, a hydraulic pump to be driven by power of the prime mover and to output operation fluid, a hydraulic actuator to be operated by the operation fluid, and a control device. The control device has a revolving-speed controller to increase and decrease a revolving speed of the prime mover, a first setting portion to set a limit value of the revolving speed of the prime mover, and a revolving-speed limiter to limit the revolving speed of the prime mover set by the revolving-speed controller to the limit value set by the first setting portion.


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