Flashing sign

Details Flashing sign Flashing sign

1992-05-06

1994-05-10

Dorner, Kenneth J.

Card, picture, or sign exhibiting

Display with special effects

Selective or intermittent illumination

40575, 40902, G09F 1302

Patent

active

053096568

ABSTRACT:
A flashing advertising sign is provided for indoor use. The sign is of box-like transparent construction having parallel front and rear panels and elongated upper and lower panels having facing retaining channels which slidably secure a flat placard. Photovoltaic cells positioned in the upper panel supply energy to a rechargeable storage battery. A timing circuit periodically directs electrical current from the battery to light-emitting diodes which illuminate the placard.

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patent: 4903172 (1990-02-01), Schoniger et al.
patent: 5101329 (1992-03-01), Doyle
patent: 5107637 (1992-04-01), Robbins

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