Measuring and testing – Volume or rate of flow – By measuring electrical or magnetic properties
Reexamination Certificate
2011-04-12
2011-04-12
Patel, Harshad (Department: 2855)
Measuring and testing
Volume or rate of flow
By measuring electrical or magnetic properties
Reexamination Certificate
active
07921733
ABSTRACT:
A magnetic flow meter includes a flowtube arranged to receive a flow of process fluid and a coil proximate the flowtube arranged to apply a magnetic field to the process fluid. A sense electrode is arranged to sense a voltage potential in the flowtube in response to the applied magnetic field. The sensed voltage is indicative of flow rate of process fluid through the flowtube. Diagnostic circuitry provides an output related to an electrical path between the coil and electrical ground.
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Notification of Transmittal of the International Search Report and the Written Opinion of the International Searching Authority, or the Declaration for related application PCT/US2010/025728 filed Mar. 1, 2010; 11 pages.
Foss Scot R.
Schulz Robert K.
Patel Harshad
Rosemount Inc.
Westman Champlin & Kelly P.A.
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