Measuring and testing – Volume or rate of flow – By measuring electrical or magnetic properties
Reexamination Certificate
2007-01-02
2007-01-02
Patel, Harshad (Department: 2855)
Measuring and testing
Volume or rate of flow
By measuring electrical or magnetic properties
Reexamination Certificate
active
11052005
ABSTRACT:
A magnetic flow metering device and method is disclosed for the measurement of corrosive flow streams. The device utilizes a unibody construction wherein the flow conduit is constructed entirely from an insulative, non-conducting material without resorting to a metallic outer housing. The portions of the electrodes in contact with the flow stream are made of a suitable conductive polymer material, resistant to the corrosive media. The electrodes also feature shields that are molded into the electrode assembly to reduce background electrical noise. The invention also utilizes an electrical configuration that actively drives the electrode shield circuit (electrodes as well as cabling) to provide a more accurate measurement of the electromotive force.
REFERENCES:
patent: 4098118 (1978-07-01), Schmoock
patent: 4125019 (1978-11-01), Cushing
patent: 4181018 (1980-01-01), Schmoock
patent: 4214477 (1980-07-01), Schmoock
patent: 4253340 (1981-03-01), Schmoock
patent: 4358963 (1982-11-01), Schmoock
patent: 4388834 (1983-06-01), Schmoock
patent: 4420982 (1983-12-01), Schmoock
patent: 4497212 (1985-02-01), Schmoock
patent: 4565619 (1986-01-01), Gardner et al.
patent: 4567775 (1986-02-01), Schmoock
patent: 4774844 (1988-10-01), Davis
patent: 5263374 (1993-11-01), Marsh
patent: 5280727 (1994-01-01), Hafner et al.
patent: 5316035 (1994-05-01), Collins et al.
patent: 5449017 (1995-09-01), Collins et al.
patent: 6539981 (2003-04-01), Kleven et al.
patent: 2003/0097882 (2003-05-01), Schlosser et al.
patent: 2004/0060366 (2004-04-01), Yamamoto
Chinnock Robert T.
Wehrs David L.
Entegris, Inc.
Patel Harshad
Patterson Thuente Skaar & Christensen P.A.
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