Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1997-04-10
1998-11-17
Tong, Nina
Communications: electrical
Condition responsive indicating system
Specific condition
340522, 340634, 340693, 73 3102, 236 21R, G08B 1710
Patent
active
058382437
ABSTRACT:
A new Combination Carbon Monoxide Sensor and Furnace Shut-Off System for automatically terminating natural gas flow to a malfunctioning boiler or furnace which is producing dangerous levels of carbon monoxide. The inventive device includes a carbon monoxide sensor system for detecting carbon monoxide, and a control valve electrically connected to the carbon monoxide sensor system and connected within a gas pipe for controlling the flow of natural gas within the gas pipe. When the carbon monoxide sensor system detects a dangerous level of carbon monoxide surrounding the boiler or furnace, a solenoid is electrically activated for closing the control valve for stopping the flow of natural gas into the malfunctioning boiler or furnace.
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