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:
Apr. 02, 1996
Filed:
Oct. 15, 1993
Linda M Lane, Long Beach, CA (US);
Timothy M Davidson, Alta Loma, CA (US);
Atlantic Richfield Company, Los Angeles, CA (US);
Abstract
Fluid samples, including petroleum fuels, may be analyzed as to certain properties such as octane number by a near infrared spectrometer by a method which carries out steps of verifying operating conditions of the spectrometer, comparing measured values of absorbance of radiation at predetermined wavelengths with a set of training values for the fluid composition in question and indicating an out of range condition when a predetermined set of measured values, when averaged, exceeds a predetermined limit. The system carries out a verification of its operating conditions by performing a routine analysis on a reference fluid, such as toluene. A so-called diagnostics routine may be performed to verify operating parameters of the system such as the radiation source, and the throughput of certain optical elements whose transmissivity may be affected by residue from the fluids being analyzed. Fluid specimens may be collected in a sample capture system having a plurality of sample capture vessels selectively operated to capture out of specification fluid samples.