Control unit for controlling the delivery of a combustible gas in valve units, particularly for water heating apparatuses, and valve unit including said unit
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United States of America Patent
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N/A
Issued Date -
Oct 20, 2005
app pub date -
Dec 20, 2004
filing date -
Jun 21, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A control unit is provided for controlling the delivery of a combustible gas in a valve unit of the type having a valve for shutting off the gas which is subject to the operational control of a magnetic safety unit with a thermocouple. The control unit includes an electronic circuit assembly arranged for connection to a sensor adapted to detect the presence of inflammable vapours or other dangerous substances. The circuit assembly is supplied by an electric power generator. The circuit assembly has an electronic type switch, acting on the electric circuit for supplying the magnetic safety unit so as to interrupt the circuit and operate the valve for closure in the presence of inflammable vapours detected by the sensor.
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