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:
Aug. 08, 2006
Filed:
Oct. 06, 2003
Applicants:
Russell J. Wakeman, Canton, MI (US);
Wayne A. Thelen, Ypsilanti, MI (US);
Inventors:
Russell J. Wakeman, Canton, MI (US);
Wayne A. Thelen, Ypsilanti, MI (US);
Assignee:
Ricardo, Inc., Van Buren Township, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 30/62 (2006.01); G01N 33/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
A system for detecting aeration in a lubricant includes a sensor having a pair of spaced apart concentric rings forming a first capacitor through which the lubricant flows and a capacitor segment forming a second capacitor with the outer ring. The capacitors are connected in a balanced bridge circuit and the second capacitor is constructed to remove gas entrapped in the lubricant present in the second capacitor so that the bridge becomes unbalanced indicating gas entrapped in the lubricant flowing through the first capacitor.