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.
Patent No.:
Date of Patent:
Dec. 31, 2013
Filed:
Sep. 07, 2011
Applicants:
Satoru Shintani, Takatsuki, JP;
Tomohiro Nakagawa, Hirakata, JP;
Ryouichi Nagasaka, Fujisawa, JP;
Inventors:
Assignee:
Komatsu Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01B 63/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
A bulldozer includes a body, a drive unit, a ripper, an operating lever, a steering lever, and a controller. The ripper is attached to a rear part of the body and performs ripping work. The operating lever is for operating the ripper. The steering lever is for controlling a travel operation by the drive unit. The controller executes a first control of pulling the ripper up out of the ground and a second control of tilting back the ripper, when it is detected that the ripping work has been ended by operation of the operating lever and the steering lever.