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Class 73/61.65 - Sedimentation rate


Subclass of Class 73 - Measuring and testing
Definition: Subject matter wherein the determination is made by measuring
No. of patents: 46
Last issue date: 04/08/2008


1    
NumberTitleIssue Date
7354768Volume-differential assay using hydrophilic gel
Systems and methods for measuring the moisture and sediment content of a petroleum sample. In one embodiment, a sample to be tested is collected in a field bottle. The sample from the field bottle is then transferred from the field bottle, and into and through a mea...
04/08/2008
7294513Method 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
7140239System and technique for ultrasonic characterization of settling suspensions
A system for determining properties of settling suspensions includes a settling container, a mixer, and devices for ultrasonic interrogation transverse to the settling direction. A computer system controls operation of the mixer and the interrogation devices and rec...
11/28/2006
7069771Partitioning sediment trap
A partitioning sediment trap adapted to be positioned in a body of water comprising an elongate, vertically alignable transparent collecting tube having an open upper end and a closed lower end for collecting, over a longer period of time, natural materials, contami...
07/04/2006
7000785Tube rack accommodating a range of tube diameters
A tube rack for holding and transporting sample tubes or other liquids in an automated analyzer is built to accommodate tubes of different sizes in a stable aligned configuration, the rack containing a row of parallel open-top tube chambers, each chamber containing ...
02/21/2006
6632679Method 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
6531321Blood control and system for erythrocyte sedimentation measurement
A control and system for blood testing, including a control having stabilized blood cells that have been introduced into a suspension including an aggregating agent and preferably a surfactant. The control and system is used advantageously for indirect ac...
03/11/2003
6336358Method 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
6331435Erythrocyte sedimentation rate control
A three-phase suspension suitable for use as an erythrocyte sedimentation rate control having the following three components: (1) a synthetic plasma base, (2) a high molecular weight polymer, and (3) mammalian red blood cells. The control is designed to a...
12/18/2001
6204066Rapid method for determining the erythrocyte sedimentation rate in a sample of anticoagulated whole blood
A method for determining the sedimentation rate of erythrocytes (ESR) includes the steps of placing an anticoagulated sample of whole blood in a transparent capillary tube and subjecting the blood sample and the tube to centrifugation. The position of the...
03/20/2001
5916814Presealed integral hematocrit test assembly and method
A presealed integral hematocrit test assembly includes a holder, a bore molded into the holder, and a blood sample tube mounted on the holder adapted to receive a sample of blood by capillary action, whereby the blood sample tube is filled with blood from...
06/29/1999
5914272Test method for determining the erythrocyte sedimentation rate and a surfactant for use therein
In an improved method for measuring the erythrocyte sedimentation rate (ESR) a pre-evacuated test tube (T) is used to collect a blood specimen. The tube (T) is made of a material such as glass or plastics and contains an anticoagulant agent. In order to f...
06/22/1999
5863799Erythrocyte sedimentation rate control
A three-phase solution suitable for use as an erythrocyte sedimentation rate control having the following three components: (1) a synthetic plasma base, (2) a high molecular weight polymer, and (3) mammalian red blood cells. The control is designed to all...
01/26/1999
5827746Method 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
5809825Sampling 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
5779983Test tube for determining the erythrocyte sedimentation rate and a surfactant for use therein
In an improved method for measuring the erythrocyte sedimentation rate (ESR) a pre-evacuated test tube (T) is used to collect a blood specimen. The tube (T) is made of a material such as glass or plastics and contains an anticoagulant agent. In order to f...
07/14/1998
5776710Assay of blood or other biologic samples for target analytes
A patient's health may be diagnosed by centrifuging blood samples in a transparent tube, which tube contains one or more bodies or groups of bodies such as floats, inserts, liposomes, or plastic beads of different densities. Each density-defined body carr...
07/07/1998
5731512Method for quick estimation of erythrocyte sedimentation rate with capillary tubes lined with preformed anticoagulant, mounted in an oblique position, and supported on a specially designed stand
An improved method for the estimation of Erythrocyte Sedimentation Rate (ESR), with capillary tubes lined with preformed anticoagulant, in an oblique position, on a specially designed stand. The method utilizes the property of whole blood to sediment fast...
03/24/1998
5693874Test apparatus and method for determining deposit formation characteristics of fuels
A test apparatus includes a test chamber adapted to support a test piece having the shape characteristic of an engine intake valve. Means are provided for heating the test piece, delivering a selected test fuel to the test chamber at a controlled rate and...
12/02/1997
5641409Method 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
5567869Method 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
5565620Method for measuring rheological properties and rheometer for carrying out the method
In a method of measuring rheological properties of a sample, an oscillation system containing the sample is caused to perform free oscillations, and the damping caused by the sample is determined, the rheological properties of the sample being possible to...
10/15/1996
5531104Device 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
5492005System and method for determining deposit formation and mitigation by fuel additives
The invention is a system and method to rate fuels and fuel additives for their tendency to form and mitigate intake system deposits in engines....
02/20/1996
5452602Photoelectric 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
5316729Erythrocyte 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
5271898Apparatus for testing blood/biomaterials/device interactions and characteristics
An apparatus designed to test blood, blood contacting biomaterials and devices such as materials and surface-modified materials; vascular grafts, stents, heart valves, catheters, leads, etc., for blood and material responses in vitro under physiological b...
12/21/1993
4876881Method and apparatus for measuring settling rate, compaction, and clarity of a liquid
An apparatus and method for continuously measuring the settling rate, compaction, and clarity of a liquid. A liquid sample containing suspended solids is pumped into the bottom of a reservoir, and clarified liquid is allowed to overflow the top of the res...
10/31/1989
4854170Apparatus and method for using ultrasound to determine hematocrit
This invention is an ultrasound apparatus for determining hematocrit. A sample of blood in a microhematocrit capillary tube is acoustically coupled to an ultrasound transducer which creates a standing wave in the blood sample. Red blood cells in the blood...
08/08/1989
4779462Apparatus for the automatic measurement of the apparent density of the mud in a liquid, system for the automatic measurement of the ponsar index of such a mud using the apparatus and process for measuring said index
Apparatus for the automotive measurement of the apparent density of mud or sludge contained in a liquid, and a system for the automatic measurement of the PONSAR index and a process for measuring said index. The apparent density of one liter of clarified ...
10/25/1988
4770042Suspension stability monitoring apparatus
Suspensions, emulsions and the like are monitored with apparatus which pulses ultrasonic waves through a suspension at elevations from bottom to top along a column of such suspension to determine if there has been alteration in the original composition th...
09/13/1988
4770043Monitoring the stability of solids containing suspensions and the like
Suspensions, liquid emulsions and the like are monitored with ultrasonic waves from bottom to top of a column of such to determine if there has been alteration in the original compositions thereof, the method being particularly adapted for determining the...
09/13/1988
4648265Blood sedimentation apparatus
A blood sedimentation apparatus has an upright transparent sedimentation tube (11) which can be inserted into a sample container (32) containing blood and which can filled with blood up to a zero mark (13) provided in the upper region by displacing the bl...
03/10/1987
4622847Apparatus for measuring the rate of erythrosedimentation of the blood
In an apparatus for measuring the rate of erythrosedimentation of the blood a bell mouthed test tube is provided, having a cylindrical part in which a calibrated and graduated sealing tube, topped with an overflow sleeve for the excess blood, slides. This...
11/18/1986
4592227Apparatus for analysis of blood
Apparatus for determining sedimentation rates including a first support means having a plurality of tubes, held vertically and spaced, and a second support means having a plurality of tubes, of larger diameter than the tubes mounted on the first support m...
06/03/1986
4545237Apparatus for blood analysis
An apparatus for blood analysis to determine the rate of corpuscle sedimentation. The apparatus has a first support (1) with several graduated tubes (4) open at both ends and held vertically in spaced relation on the first support. The tubes (4) have enla...
10/08/1985
4544489Process and apparatus for controlled addition of conditioning material to sewage sludge
The invention provides processes and apparatus for the controlled addition of conditioning (polymer) material to sewage sludge to improve its dewaterability. These materials are expensive and overdosage is to be avoided, while underdosage causes difficult...
10/01/1985
4507955Pipette for carrying out and determining sedimentation rates, in particular that of blood
A pipette for carrying out and determining sedimentation rates, in particular that of blood sedimentation, comprises an ungraduated transparent tube (1) of glass, plastic or the like, at the lower end of which a filling connection (2) is provided which, w...
04/02/1985
4477574Method of time-marking sedimentation processes
In a time-marking sedimentation process where two or more fractions in a sample containing liquid are to be separated entirely or partially by their specific weights in a tube or corresponding structure, a plug (2) of a hydrophilic plastic substance is br...
10/16/1984
4353246Blood sedimentation device
A blood sedimentation device has a transparent small-diameter sedimentation tube and is provided with a calibration mark a short distance below its upper end. The column of blood is introduced into the sedimentation tube and is precisely bounded at the lo...
10/12/1982
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