Perforating-printing device for making and using thermal stencil

Details Perforating-printing device for making and using thermal stencil Perforating-printing device for making and using thermal stencil

1977-08-12

1980-01-22

Coughenour, Clyde I.

Printing

Stenciling

Stencils

101125, 101126, 101129, 101470, 250318, 355118, 355120, B41F 1520, B41N 124, B41C 114

Patent

active

041844289

ABSTRACT:
A device which may be operated in a mode of thermally perforating thermal stencils, and another mode of producing printed copies by employing the perforated thermal stencils, wherein the thermal stencils are provided as a particular type of framed assembly for employing a relatively viscous printing ink, the device having a base plate, a cushion plate, and a press plate pivotally mounted to the base plate and having an aperture covered with a transparent rigid plate and a light source unit mounted at the aperture for emitting flash light to the aperture.

REFERENCES:
patent: 1767237 (1930-06-01), Clark
patent: 2225530 (1940-12-01), Campbell
patent: 2366722 (1945-01-01), Gaebel
patent: 3904875 (1975-09-01), Rees et al.
patent: 3964385 (1976-06-01), Knight
patent: 4091727 (1978-05-01), Hasegawa et al.

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