Laser beam track alignment safety device

Details Laser beam track alignment safety device Laser beam track alignment safety device

1994-09-28

1997-09-30

Fulton, Christopher W.

Geometrical instruments

Straight-line light ray type

Alignment device

336511, 33DIG21, E01B 3510

Patent

active

056715404

ABSTRACT:
A new and improved laser beam track alignment safety device with a tube having an inner surface and an outer surface. A first metal housing has an opening therein. The opening of the first metal housing is secured to the tube. An indicator means is secured within the first metal housing. A second metal housing has an opening therein. The opening of the second metal housing is secured to the tube. An indicator means is secured within the second metal housing. A restriction plate is secured within the inner surface of the tube. The restriction plate has a transmitting aperture formed therethrough. A plurality of securement means, each of which, couples around the outer surface of the tube and couple around the rail.

REFERENCES:
patent: 3751169 (1973-08-01), Fornerod
patent: 4155648 (1979-05-01), Ferguson
patent: 4904081 (1990-02-01), Miyahara
patent: 5036594 (1991-08-01), Kesler et al.
patent: 5157840 (1992-10-01), Henttinen

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