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| Number | Title | Issue Date |
| 7921697 | Method and apparatus for monitoring an underdrain of a filter system A method and apparatus for monitoring an underdrain in a filter system for filtering water or wastewater. At least one diagnostic condition relating to the performance of the underdrain is monitored to determine if the underdrain is operating in an acceptable manner... | 04/12/2011 |
| 7788969 | Combination contaminant size and nature sensing system and method for diagnosing contamination issues in fluids Systems and methods used to monitor a fluid where it is important to know the size, concentration and nature of particulates in the fluid. For example, the systems and method can be used to diagnose contamination issues in fluids such as fuel, lubrication, power tra... | 09/07/2010 |
| 7330262 | Methods and apparatus for determining the content materials of a liquid employing a piston movable within a measuring chamber The contents of a liquid medium are determined using a light source and an optical detector, for example a spectrometer. A longitudinally displaceable piston sucks the medium into a cylindrical glass measuring chamber and evacuates the liquid from the chamber. At le... | 02/12/2008 |
| 7294513 | Method and apparatus for characterizing solutions of small particles A method and apparatus is described by which means molecules in suspension may be characterized in terms of the size and mass distributions present. As a sample solution is separated by centrifugal means, it is illuminated at a particular radial distance from the ax... | 11/13/2007 |
| 6632679 | Method to determine the speed of sedimentation of blood and other parameters correlated thereto, and relative apparatus Method and apparatus to determine the speed of sedimentation of blood and other parameters connected thereto, said method being carried out by detecting the development over time of the optical density, or absorbance, of a sample of blood, said sample bei... | 10/14/2003 |
| 6336358 | Method and apparatus for measuring sedimentation rate of sediments in liquid sample A measuring technology of sedimentation rate of sediments in a liquid sample capable of measuring, for example, the sedimentation rate of erythrocytes in a patient requiring an urgent medical treatment in about 1/4 of the time needed in the conventional m... | 01/08/2002 |
| 6159384 | Methods and apparatus for monitoring a filter bed by differential pressure A differential pressure monitor measures the pressure at a plurality of heights in a filter bed. A preferred embodiment of the monitor comprises an elongated body, a plurality of pressure sensors located on the elongated body for obtaining the pressure re... | 12/12/2000 |
| 5980755 | Methods and apparatus for monitoring a filter bed by differential pressure A differential pressure monitor measures the pressure at a plurality of heights in a filter bed. A preferred embodiment of the monitor comprises an elongated body, a plurality of pressure sensors located on the elongated body for obtaining the pressure re... | 11/09/1999 |
| 5827746 | Method to determine the sedimentation of blood and relative device Method and apparatus to determine the sedimentation of blood. A blood sample is taken, and an anti-coagulant substance is added. The sample is homogenized. The method includes a step of measuring an optical density, or absorbance, of the sample as a funct... | 10/27/1998 |
| 5809825 | Sampling device for aerated liquids A device for the determination of the rate of sedimentation of particles in a sample of a liquid and controlling the addition of a flocculant to the liquid in accordance with the rate of sedimentation so determined. The device comprises a sample container... | 09/22/1998 |
| 5641409 | Method for filtering liquids containing particles in suspension An improved system for filtering liquids containing particles in suspension, comprising a valve system for distributing liquid, a filter and a settling tank, in which the particles suspended in the liquid can settle during various phases at decreasing rat... | 06/24/1997 |
| 5620609 | Process and apparatus for dewatering controlled by monitoring light scattered by supernatant A sedimentation or other dewatering process conducted on a suspension is controlled by filling a body (1) that is open at its top end (2) with the suspension, establishing quiescent conditions and allowing the suspension to settle to form a supernatant la... | 04/15/1997 |
| 5619333 | Flow contamination monitor The invention relates to a portable on-line fluid contamination monitor. An inlet and an outlet are provided for connecting the monitor to a fluid control circuit and a measuring device is included for withdrawing fluid from the circuit. An optical sensor... | 04/08/1997 |
| 5575977 | Apparatus for sedimentation based blood analysis An apparatus and process for accurately determining settling data for the settling of erythrocyte cells from a plasma fluid in a test specimen of blood. The apparatus includes a settling tube, a sensing assembly movably mounted proximate the settling tube... | 11/19/1996 |
| 5567869 | Method and apparatus for quantitation of relevant blood parameters A method for quantitation of blood parameters comprises the steps: provision of a sample of plasma, serum or blood, entering the sample into a cuvette with an internal dimension less than 1 mm, illuminating the sample by a light source, measuring and reco... | 10/22/1996 |
| 5565977 | Systems and methods for identifying and controlling interfaces between blood components Systems and methods locate at least three spaced apart sensing units in association with volume of blood comprising a first blood component region, a second blood component region, and an interface region between the first and second blood component regio... | 10/15/1996 |
| 5531104 | Device and method for automatic detection of the height of sedimentation in a sedimentometer An illuminating device (6, 7) and a light sensor device (5) are each arranged on opposite sides of the sedimentometer (3). The light sensor device (5) can be adjusted in height by means of a servo-motor (18) and contains two light receivers (11, 13; 12 14... | 07/02/1996 |
| 5488855 | Testing lubricating oil for mineral oil contaminants A method of testing for contaminating mineral oil in a sample of synthetic ester lubricating oil from mechanical vapor recompression type heat transfer equipment in a system which is to be retrofilled with hydrohalocarbon working fluid, comprises mixing a... | 02/06/1996 |
| 5487870 | Apparatus for sedimentation based blood analysis An apparatus and process for accurately determining settling data for the settling of erythrocyte cells from a plasma fluid in a test specimen of blood. The apparatus includes a settling tube, a sensing assembly movably mounted proximate the settling tube... | 01/30/1996 |
| 5452602 | Photoelectric method of sedimentation analysis of dispersion systems of homogeneous substance A photoelectric method of sedimentation analysis of dispersion systems of a homogeneous substances, wherein a beam of rays having an arbitrary shape is first passed through an unloaded cell and the initial value of the photocurrent created by a non-scatte... | 09/26/1995 |
| 5431037 | Sedimentation rate measuring device and sampler therefor This invention relates to a device and method for the determination of the rate of sedimentation of particles in a liquid and for controlling the addition of a flocculant to the liquid in accordance with the sedimentation rate so determined. The apparatus... | 07/11/1995 |
| 5316729 | Erythrocyte sedimentation rate measuring apparatus An apparatus for measuring the erythrocyte sedimentation rate comprising a measuring head having at least light barrier, which can be moved along a test cell containing a blood sample. The output signals of light detectors (52, 54, 60) of the light barrie... | 05/31/1994 |
| 5279150 | Automated miniature centrifuge A measurement device is provided for determining relative proportions of at least two materials forming a liquid and having different densities and different responses to light. A transparent capillary size cuvette tube confines the sample liquid, and is ... | 01/18/1994 |
| 5225350 | Particle agglutination pattern judgment method Particle pattern images of the sample are optically measured by an image reader of a particle agglutination pattern judgment apparatus, and the measured particle pattern images are retrieved by a data processing controller to be able to execute pattern ju... | 07/06/1993 |
| 5209130 | Method for recycling wash residue of ready mixed concrete and system therefor The present invention relates to a method and a system for recycling wash residue of ready mixed concrete include the steps of condensing used cement sludge to a predetermined concentration, storing the condensed sludge, sampling the stored sludge and det... | 05/11/1993 |
| 4927545 | Method and apparatus for automatic processing and analyzing of blood serum An apparatus for processing and analyzing blood serum includes an input rack for holding test tubes containing whole blood specimens and separator gel, a centrifuge, an optical sensing unit for receiving centrifuged test tubes and generating output signal... | 05/22/1990 |
| 4566315 | Meter for measuring erythrocyte settling rates A novel meter is provided for measuring erythrocyte settling rates. It includes a base supporting a rack adapted to hold an array of tubes at an optimum settling angle and at least one tube adapted to contain blood samples, the tube including an upper win... | 01/28/1986 |
| 4559813 | System and device for detecting the forming of depot System for detecting the forming of depot inside a transport channel for transporting particles in a light transparent carrier fluid, comprising a light transmitter, a light receiver, a bifurcated glass fibre cable of which an end is installed in the wall... | 12/24/1985 |
| 4474056 | Erythrocyte settling rate meter A novel meter is provided for measuring erythrocyte settling rates. It includes (a) a base supporting rack adapted to hold an array of tubes at an optimum settling angle and at least one tube adapted to contain blood samples, the tube including a window o... | 10/02/1984 |
| 4318296 | Sampling equipment for sedimentation rate measuring Sampling equipment is provided for sensing and controlling the settling rate of a flocculated slurry suspension in a settling tank, the sampling equipment comprises a metering device (23) including a vertical settling chamber for repeatedly taking a sampl... | 03/09/1982 |
| 4313340 | Device for measuring the solids content of a liquid In a device for the automatic measurement of the settlable solids content of a liquid which includes a light transparent vertical measuring tube, a pump for filling the tube with a liquid and a photoelectric scanning head for finding the position of the b... | 02/02/1982 |
| 4311039 | Disc centrifuge photosedimentometer An apparatus is provided which is characterized by a motor, a transmission, e.g., a continuously variable ratio friction transmission, and apparatus for interrupting power to the motor for a precise interval of time. A particular utilization of this devic... | 01/19/1982 |
| 4282745 | Particle size determination In order to determine the proportion of particles of less than a predetermined size in a fluid suspension, the fluid suspension is placed in a vessel (1) and is thoroughly mixed therein by mixing means (36,37). A sample of suspension is then withdrawn fro... | 08/11/1981 |
| 4194391 | Device for determining settling rates of solids or particulate bearing liquid in a continuous process or flowing stream Apparatus and method for determining the settling rate of solids or particulate bearing liquids in a continuous process or flowing stream in which a sample of the material is periodically selected and placed in a chamber which is transparent or has a tran... | 03/25/1980 |
| 4182161 | Apparatus for timing and recording sedimentation rate of fluid samples A device for automatically timing and recording the sedimentation rate of fluid samples contained in cylindrical, transparent test tubes includes a generally rectangular rack having flat vertical walls formed with cylindrical bores for receiving the test ... | 01/08/1980 |
| 4118974 | Method and apparatus for measuring erythrocyte sedimentation rate In a method of measuring erythrocyte sedimentation rate of the type wherein the upper level of a blood sample contained in a vertical test tube is detected by a photoelectric detection unit, the red blood corpuscles are caused to precipitate for a definit... | 10/10/1978 |
| 4055076 | Centrifugal granulometer A centrifugal granulometer comprises a hollow circular horizontal plate that is driven in rotation about its vertical axis and that has a transparent peripheral zone. Particulate material is introduced into the interior of the plate at a predetermined dis... | 10/25/1977 |
| 3952579 | Automatic blood sedimentation rate measuring device In a device for measuring blood sedimentation rate automatically, a light-sensitive paper sheet is disposed so as to be movable relative to a blood sedimentation measuring tube, such as Westergren tube; a slit is provided between the light-sensitive paper... | 04/27/1976 |
