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.:

US 7928741 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 19, 2011

Filed:

Apr. 20, 2009
Applicants:

Joe D. Hedges, Portola Valley, CA (US);

Paul J. Voelker, Fremont, CA (US);

Inventors:

Joe D. Hedges, Portola Valley, CA (US);

Paul J. Voelker, Fremont, CA (US);

Assignee:

Voelker Senors, Inc., Palo Alto, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 27/26 (2006.01); G01N 33/26 (2006.01);
U.S. Cl.
CPC ...
Abstract

An embodiment of the present invention provides for a sensing element comprising a non-conductive housing with three chambers for detecting oil conductivity, additive depletion and oxidation, and water contamination, respectively. Through the monitoring of an array of oil sensors, an early warning of oil degradation due to oxidation is provided. The monitoring system further detects excess soot, water and other contaminants in the oil. The oil sensor array and related monitoring system decrease the likelihood of catastrophic engine failure through the early detection and warning of a decrease in oil quality thereby reducing vehicle owner outlays for servicing and disposal fees while further aiding in the satisfaction of environmental protection regulations.


Find Patent Forward Citations

Hedges, Joe. (2011). Oil monitoring system (U.S. Patent No. 7928741). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7928741

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