Exposure unit

Details Exposure unit Exposure unit

1991-04-08

1992-06-09

Hayes, Monroe H.

Photocopying

Contact printing

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

355 93, G03B 2720

Patent

active

051211610

ABSTRACT:
An exposure unit for exposing photo-stencil materials in which the light box portion of the unit is continuously cooled by the vacuum pump that operates the vacuum frame portion of the unit. The vacuum pump is mounted internally of the light box portion of the unit and is interconnected with the vacuum frame by a direct interconnection so that a vacuum hose is not required. The unit also icludes a base for supporting the light box and vacuum frame which includes a light-tight, ventilated storage area for the storage of light sensitive materials.

REFERENCES:
patent: 1742372 (1930-01-01), Taylor
patent: 3224353 (1965-12-01), Jones
patent: 3625611 (1971-12-01), Orr et al.
patent: 4484813 (1984-11-01), Maher et al.
patent: 4536085 (1985-08-01), Hliboki et al.

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