Measuring and testing – Gas analysis – Moisture content or vapor pressure
Patent
1976-01-08
1977-04-26
Swisher, S. Clement
Measuring and testing
Gas analysis
Moisture content or vapor pressure
1161145, G01N 1112
Patent
active
040193683
ABSTRACT:
A device for indicating ambient or room temperature in which the representation of the ambient or room temperature is in terms of specific colors and or shapes incorporated in a picture, instead of the usual digital or numeric way. It consists of a painting or picture with an overlay or painted-on-layer of liquid crystals which serve to cause the picture to change color and or shape in a predetermined way, in relation to specific ambient. Thus, ambient is pictorially depicted and described by this device, instead of the usual digital or numeric and quantitative manner.
The picture upon which the liquid crystals are to be applied on are of dark or black background so that when the temperature is low, relative to the range of temperatures covered by the change of color of the liquid crystals, the unmodified color or and shape of the picture is shown. As the temperature rises to fall within the response range of the liquid crystals, and at predetermined intervals of temperature, the liquid crystals begin to change from their original or initial translucent and colorless state into colorful hues, coincident with their reflection of incident light of varying wave lengths. They then impart added color and or shape to the picture or painting's graphic form or state. The pictorial or graphic change is qualitatively related to the ambient or room temperature in a reversible manner corresponding to the normal ranges of these temperatures.
REFERENCES:
patent: 509169 (1893-11-01), Ireland
patent: 3561269 (1971-02-01), Seitz
patent: 3619254 (1971-11-01), Daris
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