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7125478 Microscale electrophoresis devices for biomolecule separation and detection  
The present invention relates to microfabrication and utilization of microscale electrophoresis devices as well as the separation and detection of biomolecules in microscale electrophoresis...
7086280 Aeration sensing device  
A system for detecting aeration in a lubricant includes a sensor having a pair of spaced apart concentric rings forming a first capacitor through which the lubricant flows and a capacitor segment...
6823721 Method and system for mass flow balance accounting  
A system which receives as inputs various measurements of solids and liquids in a clarification system and, from these measurements, determines the various constituents and their fractional makeup...
6776029 Oil content measuring device and refrigeration system using the same  
An oil content measuring device measures the oil content of a refrigerant in a supercritical or a vapor phase state. A refrigeration system uses the oil content measuring device. The oil content...
6718819 Oil quality sensor system, method and apparatus  
An apparatus for determining the condition of engine lubricating oil includes a sensor having a plurality of spaced apart electrode pairs on a nonconductive polymer film. The sensor is operatively...
6690180 Process and apparatus for determining ratio of fluid components such as methanol and water for reforming feed  
A method and sensor for determining the ratio of two components in a fluid mixture comprising a test cell in open communication with the fluid mixture and a reference cell containing a desired...
6499337 Monitoring of particulate matter in water supply  
An in-line monitoring apparatus for monitoring particulate matter in a liquid stream includes an inlet and outlet for ingress and discharge of a liquid stream. An in-line particulate...
6497140 Cavitation sensor  
A cavitation sensor includes an ultrasonically absorbent coating ( 20 ) disposed around a piezoelectric element ( 30 ) and a conduit ( 25 ). The conduit ( 25 ) includes a boundary delimited by the...
6452500 Hydrocarbon sensing apparatus  
An apparatus for monitoring presence of hydrocarbon-based fluid is disclosed. It includes a body and a sensing cable mounted on the body in a wave-like shape, thus forming a plurality of sensing...
6408684 Detection device for apparatus for analysis  
A detection device for an apparatus for carrying out analysis such as a chromatograph includes not only a detector for outputting detection signals but also a stabilization judging unit for...
6305212 Method and apparatus for real time gas analysis  
A method and apparatus for real time gas analysis involving determining individual concentrations of fluid constituents in a mixture of known constituents by measuring properties of the mixture and...
6199603 Compounding assembly for nutritional fluids  
A mixing assembly which transfers a number of nutritional fluids from individual source containers into a collection container while noninvasively sensing the type of fluid being transferred is...
6076406 Integrated sensing platform and method for improved quantitative and selective monitoring of chemical analytes in both liquid and gas phase  
By measuring two or more physical parameters of a thin sensing film which are altered when exposed to chemicals, more effective discrimination between chemicals can be achieved. In using more than...
5927349 Compounding assembly for nutritional fluids  
An mixing assembly which transfers a number of nutritional fluids from individual source containers into a collection container while noninvasively sensing the type of fluid being transferred is...
5832773 Method for determining presence of water  
A sensor can detect the difference in potential between itself and the fluid into which it is immersed, a signal generated by the probe representing this difference in potential. This signal is...
5627309 Method for determining presence of water  
A sensor can detect the difference in potential between itself and the fluid into which it is immersed, a signal generated by the probe representing this difference in potential. This signal is...
5597734 Ion chromatography using frequent regeneration of batch-type suppressor  
An ion chromatography method for analysis of a plurality of analyte ions in a sequence of samples in which ion chromatography is performed on a sample, which is passed to a non-precipitating...
5594163 Fuel mixing ratio detecting device  
A fuel mixing ratio detecting device can detect a fuel mixing ratio of a mixed fuel with high precision, regardless of the value of an electric conductivity of the fuel. The device comprises a...
5591901 Fluid sensor  
A sensor can detect the difference in potential between itself and the fluid into which it is immersed, a signal generated by the probe representing this difference in potential. This signal is...
5574214 Apparatus for drying dielectric oil  
Apparatus for removing water from a dielectric oil includes first and second spaced-apart electrically conductive walls, a bed of molecular sieves between the first and second walls, and a device...
5477468 Concentration analyzer  
The concentration analyzer of the present invention is used to determine the cross-sectional concentration at multiple locations within a fluid line, such as an artery or vein, of dissolved...
5468452 Quantitative analysis combining high performance liquid chromatograph and mass spectrometer  
A quantitative analyzing apparatus including a high-performance liquid chromatograph, a mass spectrometer, and an atmospheric pressure chemical ionization interface for linking the liquid...
5399256 Electrochemical detector cell  
An electrochemical detector cell includes a first block having a planar first working surface, and a first working electrode embedded in the first block member. The first working electrode includes...
5359905 Fuel checker for use with pet cock or ball and spring drain valves  
A hand-manipulative apparatus is disclosed for receiving a specimen of the fuel tank contents of a fuel tank. The apparatus comprises an elongated body of substantially circular cross-section. The...
5264368 Hydrocarbon leak sensor  
Method and apparatus for detecting and/or monitoring the presence of hydrocarbons in a fluid medium at a remote location, by sensing the presence of hydrocarbon-based fluid in the fluid medium in...
5253674 Coolant corrosiveness indicator  
A fluid sensor for heat exchanger system includes a supporting device such as a tubular hose fitting for mounting the sensor in the system so that heat exchanging fluid circulated in the system...
5249455 B S & W measuring means and method  
A water cut meter includes a test cell through which a petroleum stream will flow. The test cell includes an outer shell, a sensor probe which cooperates with the outer shell to form a sensor...
5225783 Dielectric constant detection apparatus for fuel  
A detection apparatus for detecting a dielectric constant of fuel having an electrode disposed in a fuel passage and applied with an excitation signal, a monolayer-wound coil disposed in the...
5205151 Alcohol concentration sensor testing apparatus  
An apparatus for testing an alcohol concentration sensor used in measuring an alcohol concentration of a fluid containing alcohol. The alcohol concentration sensor includes a capacitive probe...
5182942 Process and apparatus for utilization of fuels with alcohol additives for an internal combustion engine  
Process and apparatus for utilization of fuels with alcohol additives for an internal combustion engine in which during the heating of a sample quantity of a fuel mixture of a conventional fuel and...
5181536 Coolant corrosiveness indicator  
A fluid sensor for heat exchanger system includes a supporting device such as a tubular hose fitting for mounting the sensor in the system so that heat exchanging fluid circulated in the system...
5089783 Capacitive fuel composition sensor with padding capacitor  
In a fuel composition sensor in which a fast step voltage is applied to a capacitive voltage divider comprising a sensor capacitance and a reference capacitance in series, a padding capacitor is...
4919892 Apparatus for detecting oil and other lighter-than-water contaminants in an effluent stream  
An apparatus for detecting oil and other lighter-than-water contaminants in an effluent stream in a sewage system. The apparatus includes a disposable detector which floats in the effluent stream...
4658207 Device for measuring the water content of ink samples  
A device for measuring the water content in small samples of an ink-water mixture. The sample is used as the dielectric for a capacitor cell which includes inner and outer concentric electrodes....
4646069 Fluid detection system  
A fluid detection system capable of displaying the conditions in the environs of a large number of fluid detection probes and correlating each condition with the particular probe that detected it....
4644263 Method and apparatus for measuring water in crude oil  
A method and apparatus for measuring the amount of fluids in a two-fluid mixture flowing in a conduit wherein the fluids have different electrical conductivities. The apparatus includes a...
4605923 Method and apparatus for detection of organic fluids  
A method and apparatus for detecting the presence of an organic fluid has a pair of strips of fabric-like material joined together at one end in overlapping fashion by a bond formed from an organic...
4599609 Personal liquid chemical agent detector  
A personal liquid chemical agent detector incorporating a sensor which changes resistance in response to contact with liquid, first and second switches which function as pins for attaching the...
4589277 Process and apparatus for determining the percentage of a liquid contained in a liquid mixture  
During a process for determining the percentage of a given liquid contained in a liquid mixture, the given liquid having a lower evaporation temperature than the rest of the mixture, an observed...
4567559 Apparatus for regulating a parameter by admitting an additive into a medium  
An apparatus for regulating a parameter by admission of an additive into a medium comprises a control pulse generator which is dependent on the extent of deviation from the norm, and a regulating...
4559493 Meter for measuring the concentration of water in a water-ink mixture  
A meter is provided which can continuously measure the amount of water in a flowing mixture of water and lithographic ink. The mixture flows between the plates of a capacitor cell. This cell...
4479116 Capacitive type fuel level and impurity indicator  
A pump located within the fuel tank discharges fuel into a chamber containing a plurality of reference electrodes which determine the dielectric constant of the fuel. The output of a set of...
4449396 Probe for measuring electrical conductance  
A probe for measuring electrical conductance to determine water concentration in a fluid is disclosed. The probe comprises a pair of spaced apart electrodes and a bridge of protein gel between the...
4390957 Coal slurry monitor means and method  
A monitor receives a slurry of coal and water and provides an output signal corresponding to the coal content of the slurry. The monitor includes sensing apparatus which senses the hydrogen content...
4351642 Elements sensitive to certain polluting agents, particularly hydrocarbons and method of use  
A sensitive element which deteriorates when contacted with the polluting agent, this material comprising a sequenced styrene-butadiene copolymer, of which at least a part is hydrogenated. These...
4340938 Net oil computer  
Voltage pulses, whose frequency represents the flow rate of a stream of oil well production fluids, generate a train of clock pulses. Each train of clocked pulses is characterized into a non-linear...
4304132 Water detection device  
A device for detecting the presence of water in a fuel tank comprising a fitting mounted at the lower most portion of said tank having a water sensing alloy on said fitting. The fitting positions...
4266188 Method and apparatus for measuring a component in a flow stream  
A method and apparatus for measuring the concentration of a particular component, e.g. water, in a two-component mixture, e.g. water-oil. A probe having three sets of sensor electrodes is...
4225778 Flow detection system  
A net oil computer including a mean density electric current source that alternately supplies all of or a portion of water density and oil density electric currents with the differences between the...
4223552 Apparatus and method for sensing a substance on a liquid surface  
A sensing element is embedded in an absorbant material having a substantial affinity for the substance to be sensed and a relatively low affinity for the liquid. A measurable quantity of the...
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