Alphanumeric and graphic water display

Details Alphanumeric and graphic water display Alphanumeric and graphic water display

1993-07-19

1994-11-15

Dorner, Kenneth J.

Card, picture, or sign exhibiting

Display device with gas or liquid movement

40439, G09F 1324

Patent

active

053635779

ABSTRACT:
A liquid display that has a plurality of adjacent parallel tubes filled with a fluid and connected to a source of air that introduces bubbles into the tubes, so that the combination of bubbles form a word, or another recognizable graphic display. Each tube has a valve connected to the air supply, that controls the duration and flowrate of air injected into the tube so that a single bubble is formed within the tube. The valves are connected to a computer that opens and closes each valve to produce a pattern of bubbles in accordance with a computer program within the computer. The program creates a combination of bubbles that together depict a legible design or display.

REFERENCES:
patent: 3973340 (1976-08-01), Khawand
patent: 4892250 (1990-01-01), Fuller et al.

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