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:
Jul. 13, 2010
Filed:
Apr. 13, 2004
Robert C. Richardson, Tomball, TX (US);
Richard J. Vickerman, Stow, OH (US);
Mark R. Baker, Lyndhurst, OH (US);
Gregory D. Taylor, Madison, OH (US);
Gary A. Garvin, Mentor, OH (US);
Robert C. Richardson, Tomball, TX (US);
Richard J. Vickerman, Stow, OH (US);
Mark R. Baker, Lyndhurst, OH (US);
Gregory D. Taylor, Madison, OH (US);
Gary A. Garvin, Mentor, OH (US);
The Lubrizol Corporation, Wickliffe, OH (US);
Abstract
The invention relates to a method to analyze the condition of a functional fluid comprising: Further an apparatus for analyzing functional fluids is disclosed in the form of a test medium consisting of an absorbent or nonabsorbent material which has been treated with a chemical indicator, marker substance or a developer or detector reagent upon which a sample of the fluid to be tested is placed. The components in the treated test medium react with components in the test fluid providing a visual indication, for example a color change, to judge the condition, the presence of a marker substance or another parameter of the fluid. The functional fluid may be a lubricant, fuel or other functional fluid of innumerable sources, including internal combustion engines, turbines, transmissions, differentials, pumps, metalworking operations, cooling systems, etc, and be either organic solvent or aqueous based.