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:
Jun. 29, 1993
Filed:
Aug. 10, 1992
John Taboada, San Antonio, TX (US);
Alcor, Inc., San Antonio, TX (US);
Abstract
A short wavelength light beam such as the blue/green emission lines of an argon-ion laser, is projected through a narrow slit into a chamber onto a metal tube of the kind typically used to receive deposits in fuel testing. The spuriously reflected light is absorbed into the interior chamber wall. The beam spot on the tube is imaged by a short focal length lens onto a photodetector such as a photomultiplier tube. The radiation passing to the detector is filtered to block out all radiation except that having a wave length longer than the incident light. By this means, fluorescence from the deposits on such metal tubes, induced by the incident light beam, is quantified and is used as a proportional indication of the deposit thickness. The metal tube is simultaneously rotated and translated to scan the entire tube and thereby obtain a map of the tube deposits in order to establish a test rating for the fuel.