Measuring and testing – Volume or rate of flow – Thermal type
Reexamination Certificate
2006-07-19
2010-06-01
Patel, Harshad (Department: 2855)
Measuring and testing
Volume or rate of flow
Thermal type
C340S607000, C454S184000, C095S025000
Reexamination Certificate
active
07726186
ABSTRACT:
A thermal management system includes an airflow sensor that measures airflow in an air path inside an enclosure to be cooled, wherein the air path includes a filter and a fan. A controller is responsive to the airflow sensor for monitoring the rate of airflow inside the enclosure and determining the condition of the filter. In one embodiment, the airflow sensor is an active type sensor, such as a thermistor, disposed on circuit boards. In further embodiments, the airflow sensor is disposed proximate a tube through the filter.
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Degree Controls, Inc.
Patel Harshad
Schwegman Lundberg & Woessner, P.A.
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