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:
Nov. 16, 1999
Filed:
Oct. 29, 1997
Applicant:
Inventors:
Shigeru Yamamoto, Osaka, JP;
Hidekazu Nagase, Osaka, JP;
Assignee:
Komatsu Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
A01B / ;
U.S. Cl.
CPC ...
172-2 ; 701 50 ; 172818 ;
Abstract
A dozing system that enables automatic control for all kinds of soil properties and less frequently requires manual control intervention. The system is designed such that the blade is lifted or lowered at a start of excavation in dozing operation in an automatic drive mode such that the actual cutting angle .theta. of a blade detected by an actual cutting angle detector becomes coincident with a target cutting angle (maximum cutting angle) .theta..sub.0 preset by a target cutting angle setting device.