Knockdown lighting boxes and means for clamping the front panels

Details Knockdown lighting boxes and means for clamping the front panels Knockdown lighting boxes and means for clamping the front panels

1976-08-12

1978-02-21

Engle, Samuel W.

Card, picture, or sign exhibiting

Illuminated sign

Lamp box

40573, G09F 1300

Patent

active

040744523

ABSTRACT:
A plurality of light boxes adapted to be transported and stored in a knocked-down and disassembled condition to be readily assembled, set up and connected together, with a divider between adjacent light boxes and with a front translucent panel for each light box which is lit up by lights within each light box. Each translucent panel having a flange, with the flanges of the adjacent panels being held in abutting relationship by clamping means which eliminates mullions therebetween and with the clamping means so constructed to eliminate and/or reduce the shadows on the panels at such junctures. The adjacent panels presenting when lighted a continuous surface where the dividing lines between adjacent panels are substantially imperceptible.

REFERENCES:
patent: 861689 (1907-07-01), Wilhems
patent: 1668460 (1928-05-01), Manick
patent: 1673962 (1928-06-01), Wiley
patent: 2558599 (1951-06-01), Wiles
patent: 2823475 (1958-02-01), Packard
patent: 3418738 (1968-12-01), Goodman
patent: 3500569 (1970-03-01), Simmons

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