TEMPERATURE RESPONSIVE VALVE
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United States of America Patent
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Issued Date -
Sep 9, 2010
app pub date -
Aug 14, 2006
filing date -
Aug 14, 2005
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Abandoned
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Abstract
A temperature responsive valve (TRV), for controlling a flow of gas, employing a shape memory alloy (SMA) wire. The SMA wire is forced by the flow of gas to elongate at temperatures not exceeding a limit known as the transition temperature lower than the austenitic transition temperature. The elongation at a temperature lower than the austenitic transition temperature may be extensive enough to cause a nozzle of the TRV to be blocked, preventing further passage of the gas.
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