Method and apparatus for measuring air flow

Details Method and apparatus for measuring air flow Method and apparatus for measuring air flow

2005-01-18

2005-01-18

Lefkowitz, Edward (Department: 2855)

Measuring and testing

Volume or rate of flow

Using differential pressure

Reexamination Certificate

active

06843138

ABSTRACT:
A method and apparatus includes a multi-position valve that restricts the air flow when the valve is placed in one position. Pressure tap valves are located are the inlet and outlet ports to measure the pressure differential and thereby determine the airflow rate.

REFERENCES:
patent: 5533549 (1996-07-01), Sherman
patent: 6164142 (2000-12-01), Dimeff
patent: 6324917 (2001-12-01), Mack et al.

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