Laser shielding device

Details Laser shielding device Laser shielding device

1984-03-12

1986-03-11

Albritton, C. L.

Electric heating

Metal heating

By arc

73 493, 2505151, 340550, B23K 2600

Patent

active

045756104

ABSTRACT:
A laser shielding device is disclosed, having two spaced-apart layers of shielding material defining a sealed chamber between the two. At least one layer will degrade in the presence of an impinging laser beam, creating a hole through the layer. A pressure change in the chamber is sensed and signaled to a machine controller to stop the lasing operation.

REFERENCES:
patent: 2747105 (1956-05-01), Fitzgerald et al.
patent: 3871739 (1975-03-01), Poulsen
patent: 4114985 (1978-09-01), Friedman
patent: 4136553 (1979-01-01), Jones
patent: 4277669 (1981-07-01), Alfanoi et al.
patent: 4350978 (1982-09-01), Riccobono

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