Illuminating temperature indicator
First Claim
1. An illuminating temperature indicator to visually monitor the temperature of a liquid or a gas within a conduit or a container comprising:
- a light transmissive acrylic piece with two or more blue light emitting diodes disposed within the base side of the acrylic piece, and two or more red light emitting diodes disposed within the same base side of the acrylic piece, and a light reflective surface on or against at least a base side of the acrylic piece, and surface facets on at least a top side of the acrylic piece, and the light transmissive acrylic piece serving as a mixing and blending device that combines the illumination from the independently and separately controlled blue and red light emitting diodes creating shades of magenta illumination, a first control circuit for control of the intensity modulation of the blue light emitting diodes and a second control circuit for controlling the intensity modulation of the red light emitting diodes, a first control circuit temperature sensing thermistor and a second control circuit temperature sensing thermistor, the first control circuit modulating the illumination intensity of the blue light emitting diodes upon detection of, and the temperature of a cold liquid or gas, and the second control circuit modulating the illumination intensity of the red light emitting diodes upon detection of, and the temperature of a hot liquid or gas, a power supply common to both the first and second control circuits.
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Accused Products
Abstract
An illuminating acrylic temperature-indicating device that provides for a visual temperature indication of a fluid within a conduit, or a storage tank. The acrylic indicator mixes and blends the illumination from imbedded blue LEDs and red LEDs and separate electronic control circuits control each color of LEDs with separate temperature sensing thermistors. The indicator glows with blue, shades of magenta, and red colors as the temperature of a monitored liquid changes from cold to hot. The individual control circuits that control the illumination modulation intensity of the red and blue LEDs each provide a user with a manual adjustment that allows a user to set the hot and cold temperature sensing parameters of the device. The acrylic indicator illuminates with enough light intensity to be visible under all normal lighting conditions and is intended to operate continuously.
19 Citations
12 Claims
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1. An illuminating temperature indicator to visually monitor the temperature of a liquid or a gas within a conduit or a container comprising:
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a light transmissive acrylic piece with two or more blue light emitting diodes disposed within the base side of the acrylic piece, and two or more red light emitting diodes disposed within the same base side of the acrylic piece, and a light reflective surface on or against at least a base side of the acrylic piece, and surface facets on at least a top side of the acrylic piece, and the light transmissive acrylic piece serving as a mixing and blending device that combines the illumination from the independently and separately controlled blue and red light emitting diodes creating shades of magenta illumination, a first control circuit for control of the intensity modulation of the blue light emitting diodes and a second control circuit for controlling the intensity modulation of the red light emitting diodes, a first control circuit temperature sensing thermistor and a second control circuit temperature sensing thermistor, the first control circuit modulating the illumination intensity of the blue light emitting diodes upon detection of, and the temperature of a cold liquid or gas, and the second control circuit modulating the illumination intensity of the red light emitting diodes upon detection of, and the temperature of a hot liquid or gas, a power supply common to both the first and second control circuits. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification