Automatic loader for unexposed printing plates

Details Automatic loader for unexposed printing plates Automatic loader for unexposed printing plates

1993-10-25

1994-11-22

Wintercorn, Richard A.

Photocopying

Contact printing

Exposing on sensitized printing press plate or cylinder

271 11, 271 94, 355 89, G03B 2704

Patent

active

053673603

ABSTRACT:
An automatic loader loads multiple sizes of unexposed printing plates into an exposure unit without using cassettes. The cardboard shipping container is used as a cassette by removing the front wall. Plates are lifted and loaded by a vacuum system. Paper used to separate plates in shipping container is removed by two sets of motorized rollers. The top rollers slide the paper off the plate while the bottom rollers completely remove the separating paper from the shipping box in order to avoid jamming and allow the shipping box to be re-closed. Shipping container is used with the active side of the plates facing down in order to protect plates from accidental exposure.

REFERENCES:
patent: 4212263 (1980-07-01), Hillhouse
patent: 4402592 (1983-09-01), Schon et al.
patent: 4931833 (1990-06-01), Elwing
patent: 5055875 (1991-10-01), Fischer et al.
patent: 5084728 (1992-01-01), Horikiri et al.
patent: 5165062 (1992-11-01), Ogura et al.
patent: 5322268 (1994-06-01), Okutsu et al.

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