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.
Patent No.:
Date of Patent:
Oct. 05, 2004
Filed:
Sep. 01, 1999
Applicant:
Inventor:
Waldemar Stephan, Dortmund, DE;
Assignee:
Wilo GmbH, Dortmund, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 1/900 ;
U.S. Cl.
CPC ...
G01R 1/900 ;
Abstract
The current draw of a pump driven by an electric motor, especially a centrifugal pump such as a heating-system circulating pump, is measured by detecting the voltage drop across a conductor segment connecting the power side and hence the power line to the motor control circuit. This eliminates the need for a separate measurement resistor.
Quick Actions:
Stephan, Waldemar. (2004). Method and apparatus for current measurement for electronically-controlled pump (U.S. Patent No. 6801031). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6801031
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