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. 07, 2006
Filed:
Aug. 30, 2002
Applicants:
Shigeo Kajita, Tokyo, JP;
Yukihiro Uto, Hyogo, JP;
Nobuaki Matoba, Tokyo, JP;
Inventors:
Assignee:
Shin Caterpillar Mitsubishi Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B 29/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A construction machine which is less vulnerable to theft compared with conventional machines is provided. The system includes an antenna () for detecting removal of an engine key () after the engine has stopped, an angle detector () for detecting a posture of the upper structure, and an anti-theft unit () for forcing the engine to stop and outputting an alarm signal in cases the upper structure is not in a given posture when parked.