Engraving printing cylinders

Details Engraving printing cylinders Engraving printing cylinders

1980-03-05

1982-09-07

Eickholt, E. H.

Printing

Embossing or penetrating

Special-article machines

219121L, 219121FS, 346 76L, B23K 900

Patent

active

043477852

ABSTRACT:
Apparatus for engraving a rotating cylinder by means of a laser, in which the laser beam is focused onto a small area of the cylinder surface by a lens, including means for defining a path for the flow of compressed air across the path of the laser beam, and a suction device communicating with the region between the lens and the cylinder for extracting air from this region, the flow of air serving to remove debris from the area being engraved and to prevent it from reaching the lens.

REFERENCES:
patent: 3388314 (1968-06-01), Gould
patent: 3626141 (1971-12-01), Daly
patent: 3636251 (1972-01-01), Daly et al.
patent: 3696230 (1972-10-01), Friedrich
patent: 3866398 (1975-02-01), Vernon, Jr. et al.
patent: 4015221 (1977-03-01), Dalton
patent: 4027137 (1977-05-01), Liedtke
patent: 4087672 (1978-05-01), Yi
patent: 4121085 (1978-10-01), Diemer et al.
patent: 4149062 (1979-04-01), Limmer et al.
patent: 4170726 (1979-10-01), Okuda
"Particle Collector" Gates et al., IBM Tech. Discl. Bulletin, vol. 17, No. 9, Feb. 1975, p. 2589.

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