Cylindrical screen having aperatures with geometric centers defi

Details Cylindrical screen having aperatures with geometric centers defi Cylindrical screen having aperatures with geometric centers defi

1978-05-08

1979-11-20

Eickholt, E. H.

Printing

Stenciling

Stencils

28160, 430308, B05C 1708

Patent

active

041746643

ABSTRACT:
An improved cylindrical printing screen having aperatures located such that their geometric centers define an array of equilateral triangles each having one side which defines a 15 degree angle with respect to the circumferential direction, another side which defines a 15 degree angle with respect to the longitudinal direction and a third side which defines a 45 degrees angle with respect to both the circumferential and longitudinal directions of the cylinder is disclosed.

REFERENCES:
patent: 3363552 (1968-01-01), Rarey
patent: 3454413 (1969-07-01), Miller
patent: 3783779 (1974-01-01), Greenwood
patent: 3836367 (1974-09-01), Klemm
patent: 3849159 (1974-11-01), Palmer et al.
patent: 4023971 (1977-05-01), Vested
patent: 4050409 (1977-09-01), Duchenaud
patent: 4085700 (1978-04-01), Engels et al.
patent: 4091727 (1978-05-01), Hasegawa et al.
patent: 4112560 (1978-09-01), Willbanks

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