Measuring and testing – Volume or rate of flow
Reexamination Certificate
2009-12-03
2011-11-29
Thompson, Jewel V (Department: 2855)
Measuring and testing
Volume or rate of flow
Reexamination Certificate
active
08065921
ABSTRACT:
An airflow speed detection device for measuring an airflow speed includes an airflow speed switch, and a connector. The airflow speed switch includes a detection head, and an elastic piece. The connector is electrically connected to the testing the airflow speed switch to connect an indicator to indicate close and open states of the airflow speed switch. If the airflow speed is not faster than a critical value, the elastic piece contacts the detection head to close the airflow speed switch. If the airflow speed is faster than the critical value, the elastic piece is blown away from the detection head to open the airflow speed switch.
REFERENCES:
patent: 7637173 (2009-12-01), Hsieh et al.
patent: 7734159 (2010-06-01), Beland et al.
Hsieh Ming-Chih
Li Tsung-Hsi
Altis Law Group, Inc.
Hon Hai Precision Industry Co. Ltd.
Thompson Jewel V
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