U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

On-site oil analyzer

Patent 5517427 Issued on May 14, 1996. Estimated Expiration Date: Icon_subject June 3, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

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Inventor

Assignee

Application

No. 254039 filed on 06/03/1994

US Classes:

702/50, Fluid measurement (e.g., mass, pressure, viscosity)73/53.05, Lubricant testing73/61.41, Content or effect of a constituent of a liquid mixture73/61.48, By optical irradiation73/61.71, For measuring solid components (e.g., particles)73/863.11, With heating or cooling250/301, METHODS OF DETERMINING OIL PRESENCE, CONTAMINATION OR CONCENTRATION250/339.12, Using sample absorption for chemical composition analysis340/631, Lubricant356/70, OIL TESTING (E.G., CONTAMINATION)356/72, WITH PLURAL DIVERSE TEST OR ART356/73, PLURAL TEST702/22Chemical analysis

Examiners

Primary: Voeltz, Emanuel T.
Assistant: Stamber, Eric W.

Attorney, Agent or Firm

International Classes

G06G 007/57
G05B 023/02
G01N 033/26
G01N 021/00

Abstract

The on-site analyzer (10) includes a housing (14). The housing (14) contains an infrared spectrometer (18) and an optical emission spectrometer (24) for testing a sample (12) of oil. A conduit (32) by operation of a pump (40) draws the sample (12) into the conduit (32), and controllably moves the sample (12) to an infrared spectrometer (18) for testing, and subsequently to an optical emission spectrometer (24) for testing. The pump (40) and spectrometers (18, 24) are controlled by a computer (50) for complete automation of testing. The computer (50) performs analysis and diagnosis of the test results from the spectrometers (18, 24) based on sets of known and standard information. The computer (50) may communicate with a central, remote computer (70). Remote computer (70) accumulates results from a plurality of on-site analyzers (10) to obtain trend and wear evaluations, and to update the standard information in each of the on-site analyzers (10).

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