Precise critical temperature indicator (and manufacturing methods therefor)
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United States of America Patent
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Apr 22, 2014
Grant Date -
Nov 10, 2011
app pub date -
Dec 24, 2009
filing date -
Dec 24, 2008
priority date (Note) -
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Abstract
According to a precise critical temperature indicator and a control method thereof of the present invention, the precise critical temperature indicator comprises as one body: a blocking boundary layer which is positioned between a spreading material member including an operation button and spreading medium members including a spreadable area for a spreading material; and a temperature sensor which is controlled and operated as the spreading material passes through the blocking boundary layer and contacts the spreading medium member according to a user's pressing of the operation button. As a result, operation of the temperature sensor is easily controlled using the operation button.
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