Temperature indication product and method of manufacture
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United States of America Patent
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Issued Date -
Jan 10, 2013
app pub date -
Jul 6, 2011
filing date -
Jul 6, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Finely divided particles preferably formed into tablets or into pellets of granular temperature indication material are used as a thermometer and are brought into contact with a surface to measure surface temperature by a change in appearance of the indication material at a known temperature. Pellets are made from comminuted solid temperature indicating material shaped into a pill or tablet. In a version of the invention different temperatures are indicated by separate parts of the product, such as by separate stacked layers assembled as a composite unit to form an article of manufacture.
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