Construction machine

Details Construction machine Construction machine

2006-11-07

2006-11-07

Zimmerman, Brian (Department: 2612)

Communications: electrical

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C340S429000, C340S425500, C340S870030, C340S870030, C180S287000, C180S289000, C701S035000, C701S036000, C701S032000, C701S050000, C701S056000, C701S112000

Reexamination Certificate

active

07132924

ABSTRACT:
A construction machine which is less vulnerable to theft compared with conventional machines is provided. The system includes an antenna (6) for detecting removal of an engine key (8) after the engine has stopped, an angle detector (35) for detecting a posture of the upper structure, and an anti-theft unit (31) for forcing the engine to stop and outputting an alarm signal in cases the upper structure is not in a given posture when parked.

REFERENCES:
patent: 5752333 (1998-05-01), Nakagawa et al.
patent: 6269292 (2001-07-01), Kokubu et al.
patent: 6614361 (2003-09-01), Kinugawa
patent: 10-82223 (1998-03-01), None
patent: 2000-27240 (2000-01-01), None
patent: 2001-123481 (2001-05-01), None
Patent Abstracts of Japan for JP 2001-123481 published on May 8, 2001.
Patent Abstracts of Japan for JP 10-082223 published on Mar. 31, 1998.
Patent Abstracts of Japan for JP 2000-027240 published on Jan. 25, 2000.

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