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:
Jan. 29, 2013
Filed:
Jun. 24, 2008
Applicants:
Douglas A. Rebinsky, Peoria, IL (US);
Dong Fei, Peoria, IL (US);
Svetlana M. Zemskova, Edelstein, IL (US);
Inventors:
Douglas A. Rebinsky, Peoria, IL (US);
Dong Fei, Peoria, IL (US);
Svetlana M. Zemskova, Edelstein, IL (US);
Assignee:
Caterpillar Inc., Peoria, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 21/64 (2006.01); G01N 21/66 (2006.01); G01N 21/00 (2006.01); G01N 15/06 (2006.01); G01N 33/00 (2006.01); G01N 33/48 (2006.01);
U.S. Cl.
CPC ...
Abstract
An ultraviolet sensor arrangement detects the amount of sulfur in a fuel of an internal combustion engine by emitting an ultraviolet light field in the presence of the fuel. A detector is disposed to detect a responsive amount of fluorescent light and provide a sensing signal indicative of the amount of sulfur in the fuel. A filter (or filters) receives the sensing signal and provides a filtered sensing signal to a sensing circuit.