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:
Feb. 22, 2005
Filed:
Apr. 22, 2003
Bary W. Wilson, Ft. Lauderdale, FL (US);
Chester L. Shepard, W. Richland, WA (US);
Bary W. Wilson, Ft. Lauderdale, FL (US);
Chester L. Shepard, W. Richland, WA (US);
Battelle Memorial Institute, Richland, WA (US);
Abstract
Disclosed are an X-ray fluorescence (SRF) spectrometer and method for on-site and in-line determination of contaminant elements in lubricating oils and in fuel oils on board a marine vessel. An XRF source blockcontains two radionuclide sources(e.g. Cdand Fe), each orienteddegrees from the other to excite separate targets. The Cdsourceexcites sample lube oil flowing through a low molecular weight sample line. The Fesourceexcites fuel oil manually presented to the source beam inside a low molecular weight vialor other container. Two separate detectors A and B are arranged to detect the fluorescent x-rays from the targets, photons from the analyte atoms in the lube oil for example, and sulfur identifying x-rays from bunker fuel oil for example. The system allows both automated in-line and manual on-site analysis using one set of signal processing and multi-channel analyzer electronicsas well as one computerand user interface