Film suction plate for a process camera

Details Film suction plate for a process camera Film suction plate for a process camera

1981-01-29

1982-04-13

Griffin, Donald A.

Photocopying

Projection printing and copying cameras

Detailed holder for photosensitive paper

354276, G03B 1726, G03B 2760

Patent

active

043244874

ABSTRACT:
A film suction plate for a process camera, wherein a base plate having a suction pipe in its center and a perforated plate having a plurality of small suction holes are mounted to the rear and the front of a base frame so as to compose a box-shape, and wherein corrugated plates are mounted between the base plate and the perforated plate so that tops and bottoms of the corrugated plates may be arranged concentrically and so that ventilating paths whose widths are widened gradually from the edges of the base plate toward the suction pipe, may be formed in spaces between the corrugated plates, thereby holding any size of film onto the film suction plate without any trouble.

REFERENCES:
patent: 2078741 (1937-04-01), Stenmark
patent: 2519610 (1950-08-01), Sussin
patent: 2717756 (1955-09-01), Keeshan et al.
patent: 2799205 (1957-07-01), Bacsik
patent: 3077141 (1963-02-01), Wanielista et al.
patent: 3222051 (1965-12-01), Bevilacqua et al.

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