Measuring and testing – Volume or rate of flow – Using differential pressure
Reexamination Certificate
2008-07-23
2009-10-06
Thompson, Jewel (Department: 2855)
Measuring and testing
Volume or rate of flow
Using differential pressure
Reexamination Certificate
active
07597009
ABSTRACT:
A sensor apparatus for measuring a pressure of an airflow in a duct. The sensor apparatus includes a first sensor portion that includes a first end and a second end, and that is without ports in communication with the airflow. The sensor also includes a second sensor portion that is coupled to the first sensor portion adjacent the first end, and a third sensor portion that is coupled to the first sensor portion adjacent the second end. The second sensor portion includes a first port that senses a first airflow pressure of the airflow, and a second port that senses a second airflow pressure of the airflow. The third sensor portion includes a third port that senses a third airflow pressure of the airflow, and a fourth port that senses a fourth airflow pressure of the airflow.
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Titus, AeroCross Flow Sensor Application Guide, Mar. 4, 2002, 7 pages.
Ruskin Air & Sound Control, Ruskin Solutions for Measuring, Maintaining and Controlling Air publication, Jun. 2007, pp. 1-12.
Michael & Best & Friedrich LLP
Thompson Jewel
Venturedyne Ltd.
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