Regulating valve
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United States of America Patent
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Feb 24, 2004
Grant Date -
Apr 25, 2002
app pub date -
Oct 25, 2001
filing date -
Oct 25, 2000
priority date (Note) -
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Abstract
A regulating valve for a heat-transferring medium has a valve member controllable primarily by an electrical actuating member, but in the event of failure of the electrical actuating member, a thermostatic actuating member, operating independently of the electrical actuating member and of electric power, is provided in order to prevent damage to the system by driving the valve member when a predetermined temperature is exceeded.
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