Flow meter

Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Mechanical measurement system

Reexamination Certificate

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Details

C702S045000, C702S046000, C702S050000, C702S052000, C702S054000, C702S055000, C702S056000, C073S579000, C073S861610, C073S861630

Reexamination Certificate

active

07983856

ABSTRACT:
A simple, passive and rugged device for measuring the flow rate of liquid. A variable area obstruction valve, a differential pressure sensor and a densitometer are combined in a single housing to provide for a highly accurate and precise measure of mass flow.

REFERENCES:
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patent: 5979247 (1999-11-01), Kizawa
patent: 6722211 (2004-04-01), Ciobanu et al.
patent: 6892745 (2005-05-01), Benson
patent: 2002/0178803 (2002-12-01), Pelletier et al.
patent: 200453325 (2004-02-01), None
http://www.engineeringtoolbox.com/flow-meters-d—493.html.
Capano, Dan. “In Control” Density Measurement, Theory, and Practice, Jun. 2003. Retrieved from www.waterandwastewater.com—Ask Tom! Archive. pp. 1-4.
International Search Report issued May 28, 2009, pp. 1-4.

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