Temperature indicators

Details Temperature indicators Temperature indicators

1978-09-08

1980-04-22

Swisher, S. Clement

Measuring and testing

Gas analysis

Moisture content or vapor pressure

128736, G01K 1112

Patent

active

041988612

ABSTRACT:
An indicator which is suitable for measuring a body temperature has a generally planar member shaped for retention against a very small outer surface of a body. A temperature-sensitive material is visually activatable within a predetermined temperature range. The temperature-sensitive substance emits, reflects or refracts visible radiation to indicate the temperature. The color sequence in normal white light progresses from tan through red, green and blue and ultraviolet on temperature activation, the color red normally being the first easily visible response when the temperature reaches its responsive range. Thereafter, the color falls off and tends to remain a blue color after the temperature moves above the activation range. An optical filter visually blocks out the blue color to limit the response to the active range.

REFERENCES:
patent: 3661142 (1972-05-01), Flam
patent: 3965742 (1976-06-01), Parker
patent: 3998210 (1976-12-01), Nosari
patent: 4030482 (1977-06-01), Navato

Affiliated with

Also associated with

Rating

Temperature indicators does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Temperature indicators, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temperature indicators will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1469960