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. 16, 2003
Filed:
Jul. 15, 2002
Applicant:
Inventors:
Yohei Ogawa, Tokyo, JP;
Jun Sasagawa, Tokyo, JP;
Hirokazu Yamada, Tokyo, JP;
Hiroto Shibuya, Tokyo, JP;
Assignee:
Kabushiki Kaisha Topcon, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01C 9/02 ;
U.S. Cl.
CPC ...
G01C 9/02 ;
Abstract
In a laser beam detecting device for a construction machine, a beam sensor is installed above a leveling implement of the construction machine, a laser beam is detected by the beam sensor, and information based on the beam detection is displayed on a display. A plurality of reference positions are established in a range in which the beam sensor detects the laser beam. One of the reference positions is made a standard position, while the other reference positions are made offset positions.