Liquid rainbow

Details Liquid rainbow Liquid rainbow

1981-03-16

1983-08-02

Wilson, John J.

Card, picture, or sign exhibiting

Display device with gas or liquid movement

40427, 40581, G09F 1900

Patent

active

043958354

ABSTRACT:
Devices comprising a transparent chamber containing three mutually immiscible liquids two of which are colored yellow, cyan, or magenta with an external region colored yellow, cyan, or magenta. Static, they display four or more colored regions. When deformed or inverted, they create multicolor kinetic displays. Preferred devices comprise two liquid-filled, sheet-like chamberss in face to face relationship with five colored bands forming a rainbow pattern.

REFERENCES:
patent: 894509 (1908-07-01), Leupold
patent: 2480902 (1949-09-01), Boyer
patent: 3365816 (1968-01-01), Singerman
patent: 3706149 (1972-12-01), Olivieri
patent: 3778063 (1973-12-01), Strand
patent: 3964194 (1976-06-01), Gugeler
patent: 4002333 (1977-01-01), Gotoh
patent: 4057921 (1977-11-01), Ball
patent: 4085533 (1978-04-01), Ewald

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