Apparatus for and method of applying a pattern upon a substrate

Details Apparatus for and method of applying a pattern upon a substrate Apparatus for and method of applying a pattern upon a substrate

1981-11-30

1984-02-28

Coughenour, Clyde I.

Printing

Stenciling

Traveling-inker machines

15306B, 101129, 101425, B41L 4100, B41F 3500

Patent

active

044336233

ABSTRACT:
Silk-screening apparatus for applying a pattern on a substrate surface includes suction applying facilities for returning residual pattern forming medium back through a screen member to the upper surface thereof after a pattern has been applied. Means are provided for adjusting the magnitude of suction from a minimal value adjacent imperforate portions of the screen member to a substantially constant value adjacent perforated portions sufficient to draw the pattern-forming medium back to the upper surface. Means are provided for maintaining a substantially constant magnitude of suction as a suction applying member passes over perforated portions of the screen member having varying degrees of porosity.

REFERENCES:
patent: 932600 (1909-08-01), Burdick
patent: 2371930 (1945-03-01), Sonnino
patent: 2526419 (1950-10-01), Reeves
patent: 3302564 (1967-02-01), Wilford
patent: 3536005 (1970-10-01), Derrickson
patent: 3862469 (1975-01-01), Burgoon
patent: 4193344 (1980-03-01), Ericsson
patent: 4307662 (1981-12-01), Mittev

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