Class 73/53.06 - By analyzing a characteristic of a measuring surface

Subclass of Class 73 - Measuring and testing
Definition: Subject matter wherein determination is made by analyzing
No. of patents: 24
Last issue date: 05/20/2008

Number	Title	Issue Date
7373800	Friction test apparatus and method A friction test apparatus includes a base structure and a receptacle secured to the base structure. At least three lower friction surfaces are positioned in the receptacle. The friction test apparatus includes a motor having a rotatable shaft providing powered rotat...	05/20/2008
7249530	Oil consumption simulating device An engine lubrication system simulating device is provided, having a reservoir configured to contain engine oil. The simulating device may also include an agitation device configured to agitate oil in the reservoir. In addition, the simulating device may include a c...	07/31/2007
7243549	Acoustic wave lubricity sensor A lubricity sensor includes a flexural plate wave device and a face shear mode bulk acoustic wave device, which is associated with and located proximate to the flexural plate wave device. The face shear mode bulk acoustic wave device and the flexural plate wave devi...	07/17/2007
7228727	Lubricity measurement using MEMS A system that facilitates in situ determination of lubricity in a fluid comprises a multi-element sensor positioned within a machine, wherein the multi-element sensor obtains data regarding a plurality of parameters of a fluid. A component calculates lubricity of th...	06/12/2007
7013713	Lubricity tester for diesel fuels An apparatus for testing lubricity of a fuel includes a testing chamber for holding a sample of the fuel to be tested; an inlet for admitting the sample to the testing chamber; and an assembly for sealing the testing chamber to prevent moisture transfer during admis...	03/21/2006
6886392	Single ball bearing lubricant and material evaluator A test apparatus provides an applied load to a monoball through a trolley which moves along a loading axis. While applying the load to the monoball, the torque meter is in communication with the spherical monoball, and a load cell senses the application of applied f...	05/03/2005
6862919	Ethanol and volatility sensor and fabrication method In one embodiment, a method for forming the sensor comprises: disposing capacitance electrodes and a heater on green layers; disposing the layers such that the capacitance electrodes are disposed between adjacent green layers and the heater is disposed on a side of ...	03/08/2005
6752001	Lubricant tester An assembly that provides for the mounting of paired sets of lubricant sample holders into balanced, opposed contact with a rotating rotor and whereby comparative data pertaining to measured load, speed and elicited thermal, audio and visual responses are obtained. ...	06/22/2004
6701787	Acoustic sensor for pipeline deposition characterization and monitoring of pipeline deposits A method and apparatus for analyzing a deposited layer on the inner surface of a fluid container wall having inner and outer surfaces are disclosed. One embodiment of the method comprises (a) transmitting an acoustic signal from a transmitter at a first d...	03/09/2004
6557396	Flexible circuit film engine oil sensor A flexible circuit film oil sensor includes a flexible circuit film surrounded by a flexible border. A core support flap and a weld flap are attached to opposite ends of the flexible border. The flexible circuit film includes an oil level sensing electrod...	05/06/2003
6513385	Acoustic sensor for pipeline deposition characterization and monitoring A method and apparatus for analyzing a deposited layer on the inner surface of a fluid container wall having inner and outer surfaces are disclosed. One embodiment of the method comprises (a) transmitting an acoustic signal from a transmitter at a first d...	02/04/2003
6365413	Thin film thermal oxidative oil deposit testing device and method Thin film thermal oxidative engine oil or other oleaginous liquid deposit device has an oleaginous test liquid placement volume; a heatable depositor surface in liquid communication with the volume; a supply for at least one of an oxidant and another subs...	04/02/2002
6361963	Biofilm growth device A method and apparatus for determining the effect of various agents on the growth of biological material (biofilm), microbially-influenced corrosion and the deposition of organic and inorganic contaminants is disclosed. The method and apparatus allow for ...	03/26/2002
6245571	Method of characterizing the neutralization capacity of a lubricant and device for the implementation of this method The invention relates to the study and the manufacture of lubricants used in particular in diesel engines. According to the invention, the neutralization capacity of a lubricant comprising detergent additives is determined by a method which consists in re...	06/12/2001
5744709	Measurement of specific interfacial areas of immiscible fluid interfaces in flow systems This invention relates generally to methods of measuring interfacial areas, and more specifically to flow-based methods for measuring the area of the interfaces between two immiscible fluids. The immiscible fluids of interest are various oils and gases th...	04/28/1998
5428990	Method of evaluation segregation of solid-liquid interface and segregation apparatus thereof A method and apparatus for evaluating a segregation at a solid-liquid interface, capable of specifying and measuring quantitatively a segregation substance, that is, a substance which precipitates preferentially on a solid surface from a liquid or remains...	07/04/1995
5401661	Thermo-oxidation engine oil simulation testing A method for testing engine lubricating oil under simulated engine operating conditions including a tank with an interior space containing a quantity of engine lubricating oil, an elongated tubular enclosure for passing oil from one end to the other, and ...	03/28/1995
5278071	Bench test method for rating the corrosion inhibiting ability of an oleaginous fluid A bench-test method which correlates well with other more costly engine test methods, and which can be used to screen oleaginous formulation prior to performing expensive engine tests. The method comprises a) contacting ball bearing(s) having a smooth sur...	01/11/1994
5092349	Cigarette quality assurance method The quality of finished cigarettes is assured by incorporating an individual, predetermined lubricant at predetermined locations in the cigarette manufacturing process. When a cigarette spotted or stained by a lubricant deposit is obtained, the lubricant ...	03/03/1992
4741204	Measurement of the depletion of basic additives in lubricating oil Disclosed is a method of measuring the depletion of basic additives in a lubricating oil. A sensor is immersed into the oil, an electric current is passed through the sensor, and the resistance of the sensor is measured. The sensor is made of copper, lead...	05/03/1988
4627274	Apparatus for testing stability of heavy oil Electric heating means is arranged in the bottom portion of one case body, and an air bath tank and a sample heating tank, communicating with each other, are formed within this case body. The temperature of air in the air bath tank is maintained at a pred...	12/09/1986
4176545	Electronic engine wear detector This application discloses an apparatus and electrical system for sensing the wear within an engine by detecting the presence of metal pieces which have become dislodged from the engine. The metal pieces are detected by collecting them upon a filter which...	12/04/1979
4057999	Apparatus for testing engine oil An apparatus for testing engine oils and in particular oils to be used in compression ignition engines. The apparatus includes a receptacle in which a sample of the liquid oil to be tested is poured. The receptacle has a cover plate with an opening. A tes...	11/15/1977

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Class 73/53.06 - By analyzing a characteristic of a measuring surface