Invention Grant
US09228746B2 Heating device having a secondary safety circuit for a fuel line and method of operating the same
有权
具有用于燃料管路的二次安全电路的加热装置及其操作方法
- Patent Title: Heating device having a secondary safety circuit for a fuel line and method of operating the same
- Patent Title (中): 具有用于燃料管路的二次安全电路的加热装置及其操作方法
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Application No.: US11421141Application Date: 2006-05-31
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Publication No.: US09228746B2Publication Date: 2016-01-05
- Inventor: Dennis R. Hughes , Hyungsik Lee
- Applicant: Dennis R. Hughes , Hyungsik Lee
- Applicant Address: US DE Wilmington
- Assignee: AOS HOLDING COMPANY
- Current Assignee: AOS HOLDING COMPANY
- Current Assignee Address: US DE Wilmington
- Agency: Michael Best & Friedrich LLP
- Main IPC: F23N5/24
- IPC: F23N5/24 ; F23N5/10 ; F23N5/02 ; F23N5/00

Abstract:
A secondary safety circuit for a gas-fired device and method of operating the circuit. The secondary safety circuit includes a low-voltage direct current power source, a valve, and at least one sensor. The valve can be positioned in a pilot burner gas line. The secondary safety circuit ensures the valve is closed upon detecting an unsafe condition with the sensor.
Public/Granted literature
- US20070281257A1 HEATING DEVICE HAVING A SECONDARY SAFETY CIRCUIT FOR A FUEL LINE AND METHOD OF OPERATING THE SAME Public/Granted day:2007-12-06
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