Vacuum frame hinge

Details Vacuum frame hinge Vacuum frame hinge

1990-09-21

1991-12-10

Wintercorn, Richard A.

Photocopying

Contact printing

Fluid pressure retention of carrier and receiver in exposure...

G03B 2720

Patent

active

050722573

ABSTRACT:
A vacuum frame apparatus and method for maintaining registration of graphic material to be exposed to light having a surface on a base for supporting graphic materials which remains stationary with respect to the base and having a cover which moves with respect to the stationary support surface into engagement with graphic materials to sandwich the same between the cover and support surface.

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patent: 4827316 (1989-05-01), Brown
Byers Corporation brochure, "PHASE SYSTEM Specifications", effective 12/1/89, 4 pp.

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