Mobile machine hazardous working zone warning system

Details Mobile machine hazardous working zone warning system Mobile machine hazardous working zone warning system

1996-10-18

1999-08-17

Wu, Daniel J.

Communications: electrical

Condition responsive indicating system

Specific condition

340539, 340541, 455 41, G08B 2300

Patent

active

059399864

ABSTRACT:
A warning system is provided for a mobile working machine to alert an individual of a potentially dangerous condition in the event the individual strays into a hazardous working zone of the machine. The warning system includes a transmitter mounted on the machine and operable to generate a uniform magnetic field projecting beyond an outer periphery of the machine in defining a hazardous working zone around the machine during operation thereof. A receiver, carried by the individual and activated by the magnetic field, provides an alarm signal to alert the individual when he enters the hazardous working zone of the machine.

REFERENCES:
patent: 4100529 (1978-07-01), Evans
patent: 5047752 (1991-09-01), Schorn
patent: 5086290 (1992-02-01), Murray et al.
patent: 5198800 (1993-03-01), Tozawa et al.
patent: 5477210 (1995-12-01), Belchre
patent: 5575242 (1996-11-01), Davis et al.

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