Display sign

Details Display sign Display sign

1976-07-26

1977-09-06

Pitrelli, John F.

Card, picture, or sign exhibiting

Check, label, or tag

Reinforced

340366E, 340378R, G09F 1134

Patent

active

040458954

ABSTRACT:
A display sign of the type comprising a back-lighted panel having a plurality of discrete light-transmitting areas and controlled opaque discs which selectively overlie the individual light-transmitting areas to produce a desired visual pattern of light transmitted through the panel. The improvement comprises discrete projections for supporting the individual discs. The arrangement of projections serves as structural reinforcement in the panel.

REFERENCES:
patent: 3562938 (1971-02-01), Salam
patent: 3601914 (1971-08-01), Fuller
patent: 3659366 (1972-05-01), Woolfolk
patent: 3685040 (1972-08-01), Hart
patent: 3827168 (1974-08-01), Mori
patent: 3995386 (1976-12-01), Salam

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