Film duplicator

Details Film duplicator Film duplicator

1990-04-02

1991-01-29

Wintercorn, Richard A.

Photocopying

Contact printing

Machine

271245, G03B 2730

Patent

active

049890360

ABSTRACT:
In a film duplicator original and copy sheets are initially brought together in unaligned relationship and permitted to drop under the influence of gravity along a predetermined path past an exposure station and into an alignment box where the ends of the sheets strike the bottom of the box to align the sheets. The aligned sheets are then transported back to the exposure station to expose the copy sheet. The sheets are then separated and exited from the duplicator.

REFERENCES:
patent: 3022716 (1962-02-01), Smith, Jr. et al.
patent: 3186325 (1965-06-01), De Belder
patent: 3416863 (1968-12-01), Ralston
patent: 3419328 (1968-12-01), Klosky et al.
patent: 3535039 (1970-10-01), Lakin et al.
patent: 3891318 (1975-06-01), Touchette
patent: 4176949 (1979-12-01), Burgess
patent: 4515470 (1985-05-01), Deckers et al.
patent: 4530590 (1985-07-01), Kawai
patent: 4634269 (1987-01-01), Welp et al.
patent: 4640507 (1987-02-01), Ohgoda et al.

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