Laser beam machining device with protective mask and safety swit

Details Laser beam machining device with protective mask and safety swit Laser beam machining device with protective mask and safety swit

1998-06-08

1999-12-28

Mills, Gregory

Electric heating

Metal heating

By arc

21912163, 219147, 2 8, B23K 2600

Patent

active

060084669

ABSTRACT:
A protective mask which has a face shield and an eye shield is used for safety when a worker machines a workpiece by a laser beam. Start switches are provided in the mask, and closed when a worker wears the mask. A laser torch, a conductive clip and a laser oscillator are connected in series. When a workpiece is brought in contact with the end of a taper nozzle of the laser torch and the conducting clip, an electric current is sent from a power source to the laser oscillator, which is oscillated. Thus, accident by laser beam owing to unexpected electric conduction is prevented.

REFERENCES:
patent: 2761046 (1956-08-01), Herrick et al.
patent: 3392259 (1968-07-01), Meier
patent: 3622743 (1971-11-01), Muncheryan
patent: 3692974 (1972-09-01), Thomason et al.
patent: 3719793 (1973-03-01), Finger
patent: 4237364 (1980-12-01), Lemelson
patent: 4679255 (1987-07-01), Kuhlman
patent: 4937879 (1990-07-01), Hall et al.
patent: 5189735 (1993-03-01), Corona

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