Patent References H1190 Lubricating oil compositions containing a dispersant amount of aminated nitroketonized hydrocarbon terpolymers Characterizing and handling multi-component substances Method and apparatus for spectroscopic comparison of compositions Surface contamination detection using infrared-transparent fibers or attenuated total reflection crystals Control of low inventory alkylation unit Monitoring of fluid contamination level wherein the light energy is focused on the fluid passage means Spectroscopic sample holder and method for using same On-site oil analyzer Organic chemical compound test papers and method of using same Patent #: 5677191 InventorsApplicationNo. 635709 filed on 04/22/1996US Classes:700/272, Of fuel700/271, Refinement or purification or rejuvenation702/25Liquid mixture (e.g., solid-liquid, liquid-liquid)ExaminersPrimary: Kemper, Melanie A.Attorney, Agent or FirmInternational ClassesG01J 003/32G01N 021/00 AbstractDisclosed herein is a method and apparatus for controlling and extending the performance of lubricating fluids, such as lubricating oils. The method comprises simultaneous detection of multiple additives and contaminant levels in the lubricating fluids and measured input of selected additives to the lubricating fluids. The additive and contaminants levels are simultaneously and quantitatively determined using a Fourier transform infrared (FTIR) spectrometer, and any drop in additive levels below pre-specified limits automatically triggers corrective action whereby a computer-controlled delivery system is employed to replenish the depleted additives. The system can also be employed to detect irreversible degradation of the lubricating fluids and direct the degraded fluids to a holding area where they may undergo treatment or disposal and add new fresh lubricating fluids. A data management station is programmed for monitoring the quality of the fluid and ensuring that the threshold values of additive levels are maintained at all times of operation.Other References
Field of SearchOIL TESTING (E.G., CONTAMINATION)Utilizing a spectrometer With spectral analysis With significant sample holder or supply METHODS OF DETERMINING OIL PRESENCE, CONTAMINATION OR CONCENTRATION Infrared responsive Including spectrometer or spectrophotometer Including Fourier transform infrared spectrometry Using sample absorption for chemical composition analysis Methods Lubricant testing LIQUID ANALYSIS OR ANALYSIS OF THE SUSPENSION OF SOLIDS IN A LIQUID Content or effect of a constituent of a liquid mixture Liquid constituent of a liquid mixture Plural liquid constituent (e.g., multiphase liquid) Flow divider, deflector, or interceptor Branched conduit OPTICAL RESULT Plural nitrogens bonded directly to a single acyclic hydrocarbon chain (e.g., amides of ethylene diamine, etc.) Liquid mixture (e.g., solid-liquid, liquid-liquid) Quantitative determination (e.g., mass, concentration, density) | |