Screen printing apparatus

Details Screen printing apparatus Screen printing apparatus

1988-05-11

1989-08-08

Wiecking, David A.

Printing

Stenciling

Traveling-inker machines

101119, B41L 1318, B05C 100

Patent

active

048542300

ABSTRACT:
A screen printing apparatus comprising a screen having an opening or openings of a desired print pattern and having a lower surface being positioned adjacent to a substrate to be printed, and a nonflexible squeegee comprising a cavity for containing a material to be printed on the substrate. The cavity is defined by the interior surfaces of surrounding walls extending generally vertically from the lower extremities at which the squeegee directly contacts the upper surface of the screen. While the squeegee travels with respect to the screen the material to be printed flows from the cavity into the openings of the screen, and thereby onto the substrate. The squeegee may be formed of stainless steel, a ceramic material or a synthetic resin.

REFERENCES:
patent: 1413995 (1922-04-01), Salerno
patent: 1785732 (1930-12-01), Flockhart
patent: 1892267 (1932-12-01), Flockhart
patent: 2027102 (1936-01-01), Hommel et al.
patent: 3384931 (1968-05-01), Cochran et al.
patent: 3613635 (1971-10-01), Brehm
patent: 4023486 (1977-05-01), Linthicum et al.
David F. Zarnow, "A New Approach to Thick Film Resistors", ISHM 1979 Proceedings, pp. 32-39.
F. L. Givens et al., J. Electrochem. Soc.: Solid-State Science and Technology, 126: 269-272 (1979).
Morris Shankin, "Write It, Don't Screen It!", ISHM 1978 Proceedings, pp. 18-25.

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