Measuring and testing – Volume or rate of flow – Thermal type
Reexamination Certificate
2008-02-14
2010-06-08
Thompson, Jewel (Department: 2855)
Measuring and testing
Volume or rate of flow
Thermal type
Reexamination Certificate
active
07730777
ABSTRACT:
A simply structured flowmeter in which an influence of a dilatational wave on a thermal flow rate sensor is suppressed, and measurement accuracy is enhanced.The flowmeter has not only the thermal flow rate sensor that is placed to face a flow channel and detects a flow rate of fluid flowing through the flow channel but also a micro path (for example, narrow pipe) that is provided to the flow channel and blocks a dilatational wave created in the flow channel from being transmitted to the thermal flow rate sensor.
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Anzai Masanori
Kamiunten Shoji
Frishauf Holtz Goodman & Chick P.C.
Thompson Jewel
Yamatake Corporation
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