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:
Dec. 29, 2009
Filed:
Jul. 25, 2005
Applicant:
Vinodkumar Sadasivam, St. Louis, MO (US);
Inventor:
Vinodkumar Sadasivam, St. Louis, MO (US);
Assignee:
Emerson Electric Co, St. Louis, MO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B 49/02 (2006.01); F04B 49/06 (2006.01); G05F 1/70 (2006.01);
U.S. Cl.
CPC ...
Abstract
Cavitation detection systems and methods include generating a signal representing the power factor of a motor driving a pump, analyzing the power factor signal and determining the presence of cavitation based on the analysis of the power factor signal. The power factor may be estimated using various estimation schemes. Analyzing the signal includes filtering the power factor signal.