Back to results
US 4,395,835 AGranted
Liquid rainbow
OwnerRonald A. Schneiderinventor
Life of this patent
Estimating the term…
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.
Claims11
A display device comprising two transparent sealed sheet-like chambers in face to face relationship containing colored liquids,
- (A) one chamber containing at least three multually immiscible liquid phases at least two of which are colored with colors selected from the group consisting of yellow, cyan, and magenta, and
- (B) a second chamber containing at least two mutually immiscible liquid phases at least one of which is colored with colors selected from the group consisting of yellow, cyan, and magenta,
- the volumes of said liquid phases being selected such that when the device is vertical and at rest, each of said at least two liquid phases in said second chamber are in overlapping relationship with at least two of the liquid phases in said one chamber, such that one horizontal ray of light can pass through one liquid in one chamber and a second liquid in the second chamber;
- a second horizontal ray passing through the same two chambers can pass through a different combination of two liquids;
- a third horizontal ray passing through the same two chambers can pass through a third combination of two liquids;
- and a fourth horizontal ray passing through the same two chambers can pass through a fourth combination of two liquids.
3 more elements
Dependencies are inferred from the claim text.