Apparatus for applying a foamed treating medium to a workpiece

Details Apparatus for applying a foamed treating medium to a workpiece Apparatus for applying a foamed treating medium to a workpiece

1981-11-25

1984-04-17

Coughenour, Clyde I.

Printing

Stenciling

Stencil-web machines

101124, 101364, 118213, B41L 1302

Patent

active

044427719

ABSTRACT:
Apparatus for applying a foamed treating medium to the upper side of a substrate has a screen which confines a system of walls defining a chamber open at its underside adjacent to the screen and including a squeegee which serves to force the foamed medium from the interior of the chamber through the interstices of the screen and into the substrate. The chamber accommodates a reciprocable and/or rotary device for shifting the foamed medium therein so that the medium cannot age and change its color and/or other characteristics prior to application to the substrate.

REFERENCES:
patent: 457663 (1891-08-01), Oldfield
patent: 945266 (1910-01-01), Dick
patent: 1447849 (1923-03-01), Hough
patent: 1509888 (1924-09-01), Weldon
patent: 1896034 (1933-01-01), Weed
patent: 2363137 (1944-11-01), Metcalf
patent: 2447868 (1948-08-01), Ortleb
patent: 3084661 (1963-04-01), Roberts
patent: 3094924 (1963-06-01), Stark
patent: 3796153 (1974-03-01), Jaffa
patent: 4103614 (1978-08-01), Mitter

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