Thermal measuring and testing – Temperature measurement – By electrical or magnetic heat sensor
Reexamination Certificate
2007-10-11
2010-10-19
Caputo, Lisa M (Department: 2855)
Thermal measuring and testing
Temperature measurement
By electrical or magnetic heat sensor
C374S183000, C374S160000, C116S207000, C116S216000
Reexamination Certificate
active
07815370
ABSTRACT:
An apparatus, system, and method are disclosed for detecting temperature threshold events in an aftertreatment device. The system may include an aftertreatment device configured to treat an exhaust gas of an internal combustion engine and a temperature responder disposed within a region of interest of the aftertreatment device. The temperature responder is configured to melt at a threshold temperature. The system may further include two access points electrically coupled to the temperature responder and an observation module configured to measure an electrical resistance value across the two access points. The observation module detects the melting of the temperature responder based on the electrical resistance value measured across the access points. In alternate embodiments the observation module is included within an engine control module (ECM) or a service tool.
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Simon, III Conrad J.
Stafford Randall J.
Caputo Lisa M
Cummins Filtration IP Inc.
Dunlap Jonathan
Kunzler Needham Massey & Thorpe
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