Invention Grant
- Patent Title: Thermal protection device and method
- Patent Title (中): 热保护装置及方法
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Application No.: US13245214Application Date: 2011-09-26
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Publication No.: US08803042B2Publication Date: 2014-08-12
- Inventor: Nicholas F. Buccheri , John J. Haller
- Applicant: Nicholas F. Buccheri , John J. Haller
- Applicant Address: US NJ Florham Park
- Assignee: Automatic Switch Company
- Current Assignee: Automatic Switch Company
- Current Assignee Address: US NJ Florham Park
- Agency: Locke Lord LLP
- Main IPC: H05B1/02
- IPC: H05B1/02 ; H01H85/02 ; H01H85/00 ; H01F7/06 ; H01H37/32

Abstract:
A solenoid valve for use in a hazardous environment requiring a surface temperature of the valve to not exceed a cutoff temperature, the valve comprising coil configured to physically move an armature using an field generated by the coil; a thermal cutoff device having a fusing temperature above the cutoff temperature; and a heating resistor sized and configured to raise thermal cutoff device's temperature to the fusing temperature before the surface temperature exceeds the cutoff temperature. A method of constructing a solenoid valve for use in a hazardous environment requiring a surface temperature of the valve to not exceed a cutoff temperature, the method comprising the steps of: selecting a thermal cutoff device having a fusing temperature above the cutoff temperature; and selecting and configuring a heating resistor to raise thermal cutoff device's temperature to the fusing temperature before the surface temperature exceeds the cutoff temperature.
Public/Granted literature
- US20120112870A1 THERMAL PROTECTION DEVICE AND METHOD Public/Granted day:2012-05-10
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