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Class 436/179 - Dilution


Subclass of Class 436 - Chemistry: analytical and immunological testing
Definition: Processes wherein the material to be analyzed is diluted
No. of patents: 257
Last issue date: 04/17/2012


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NumberTitleIssue Date
4624929Sample collector and assay device and method for its use
A device is disclosed for collecting a liquid sample and diluting the liquid sample by virtue of being adapted for use with a container having a volume of diluting liquid. The device comprises a housing adapted for mating with the container where the mate...
11/25/1986
4610170Method for the dilution of liquid samples
Method for the precise dilution of a liquid sample, in which diluting agent is pumped through a main channel (1) open at its lower tip and, at the same time, sample is pumped through a side channel (2), whose lower tip (11) opens into the main channel. Th...
09/09/1986
4596780Process for sampling and diluting
A process for sampling and diluting a liquid to be diluted utilizing a device comprising a hollow tubular body and a sealed pre-evacuated container. The hollow tubular body includes a self-filling tube for drawing up and capturing by capillary attraction ...
06/24/1986
4590165Automatic sampling system
An automatic sampling method for introducing a diluted viscous sample into an instrument for analysis for trace elements. The automatic sampling system includes a tube assembly, a member for mounting the tube assembly in proper relation, means for maintai...
05/20/1986
4578349Immunoassay for carcinoembryonic antigen (CEA)
This invention involves an improvement in immunoassay for carcinoembryonic antigen in biological fluids. The improvement comprises liberating carcinoembryonic antigen in the biological fluid by diluting the biological fluid with about 0.4-0.8 molar salt s...
03/25/1986
4576918Method of sampling and analyzing biocidal gas from a reaction chamber
A method and apparatus for determining the composition and the concentration of biocidal gas and other gases contained in a reaction chamber during processing of material contained in the chamber and exposed to the treating gas. A valved pre-evacuated gas...
03/18/1986
4537747Disposable device for sampling and diluting
A disposable device for the sampling and diluting of a liquid to be diluted. The device includes a hollow tubular body and a sealed pre-evacuated container. The hollow tubular body includes a self-filling tube for drawing up and capturing by capillary att...
08/27/1985
4528158Automatic sampling system
An automatic sampling system and method for introducing a diluted viscous sample into an instrument for analysis for trace elements. The automatic sampling system includes a tube assembly, a member for mounting the tube assembly in proper relation, means ...
07/09/1985
4416735Diluent and method for potentiometric assay of liquids
A diluent and a method of assaying are described, by which the ionic strength range of the liquid that is to be assayed potentiometrically, is compressed. The diluent comprises a predetermined concentration of (a) a protonated water-soluble organic amine ...
11/22/1983
4345628Gravimetric diluter
An apparatus for making dilutions of a sample with a diluent to a predetermined dilution factor f by weight of the diluent is disclosed. A scale with TARE capability produces an output signal of the weight W of a sample within a container less the weight ...
08/24/1982
4256461Method and apparatus for equilibrating gas and liquid in a transportable vessel--syringe tonometer
Method and apparatus for gas-liquid equilibration (tonometry) in a transportable vessel. Specifically the method and device is concerned with tonometry of blood or buffer solution in a syringe. The compartment formed when a syringe plunger is partially in...
03/17/1981
4253847Preparing sample for electrochemical testing system
An electrochemical measuring system which effects, measures and sorts charge transfer reactions of selected substances in a sample solution is provided. The system includes a novel electrode which is adapted to measure simultaneously on at least two elect...
03/03/1981
4148610Batch preparation of samples by dilution
In the automated, batch preparation of diluted samples, i.e., the preparation of sample/diluent aliquots of repetitively and exactly maintained fixed ratio, metered diluent is pneumatically introduced into a vented mixing chamber, using the principle of g...
04/10/1979
4130394Short sample detection
A dilutor/dispenser system wherein a marker, e.g., an air bubble, is introduced at the probe inlet prior to each aspiration cycle, so as to be displaced along the probe system during such cycle. The location of the marker is detected at the end of the asp...
12/19/1978
4106910Ras-Gas dilution device
A method and device for diluting a first gas mixture having a known conceation of a given gas to obtain a second gas mixture containing a lower known concentration of the given gas. The device enables one to mix gases with appropriately low concentration...
08/15/1978
4061467Process and apparatus for the removal of samples for analysers from a stream of exhaust gas
In a process for the removal of samples from flue gases or other highly concentrated exhaust gases, before the sample is removed from the main stream of exhaust gas it is diluted with a carrier gas which is free from this exhaust gas. The sample is dilute...
12/06/1977
3994687Peristaltic dilutor system and method
Geometric dilution of a liquid is effected in a series of successive containers through a flexible tube having an upstream end in communication with a diluent liquid supply and a downstream end in successive communication with each of the successive conta...
11/30/1976
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