The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 18, 2006

Filed:

Dec. 12, 2003
Applicants:

Chang-dong Feng, Long Beach, CA (US);

Barry Benton, Orange, CA (US);

Behzad Rezvani, Anaheim, CA (US);

Inventors:

Chang-Dong Feng, Long Beach, CA (US);

Barry Benton, Orange, CA (US);

Behzad Rezvani, Anaheim, CA (US);

Assignee:

Rosemount Analytical Inc., Irvine, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/08 (2006.01); G01R 15/18 (2006.01); G01F 1/64 (2006.01);
U.S. Cl.
CPC ...
Abstract

An improved flow-through conductivity sensor is provided. The sensor includes a current return path that has a current return conductor. At least one toroid of the sensor is removed from the flow path and configured to interact with the current return conductor to provide an indication of conductivity. Additional aspects of the invention include disposing a pair of toroids about the current return conductor; disposing a toroid about the current return conductor and configuring the toroid as a transformer.


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