Hot water use warning device for faucets
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United States of America Patent
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May 18, 2021
Grant Date -
May 23, 2019
app pub date -
May 9, 2017
filing date -
May 9, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A low-cost hot water use warning device, having the shape of an aerator housing, including a metallic housing inner core (2) with threads configured for attachment to a faucet and a ridged indented channel for accommodating a thermochromic belt (6) or band that may constitute several layers including an outer thermochromic layer (10) capable of changing its color at a certain temperature, a second high thermal conductivity layer (11) made of copper for evening out temperature gradients and a third low heat conducting polymeric layer (12) for imposing a controlled delay. At each vertical side of the thermochromic belt are flanking wedge-shaped isolation grooves (7). The device operates as an awareness indicator for informing a faucet user of excessive temperature and duration of hot water use.
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