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Class 241/2 - With cell rupturing or liberation of contained liquids


Subclass of Class 241 - Solid material comminution or disintegration
Definition: Processes in which the comminution or disintegration results
No. of patents: 77
Last issue date: 09/20/2011


1    
NumberTitleIssue Date
8020790Biological sample disruption techniques
Improved ball mill disruption techniques. In different embodiments, disrupting particles that are not substantially spherical are used. In other embodiments, roughened disrupting particles are used. In other embodiments, larger disrupting particles are used. In each...
09/20/2011
7584909Eggshell membrane separation method
A method for processing unseparated egg shells is provided. The method includes placing the unseparated egg shells in a fluid tank containing a fluid mixture, applying cavitation to the fluid mixture to thereby assist in separating the egg shell membranes from the e...
09/08/2009
7467754Method and apparatus for comminution of biological specimens
An apparatus for comminuting biological specimens includes a receiving component provided with a drive source, a sample retainer configured for retaining at least one biological specimen and for engagement in the receiving component, and a single use comminution mec...
12/23/2008
7413135High pressure homogenizing apparatus and method thereof
The present invention relates to a high pressure homogenizing apparatus and a method thereof for finely dividing a fine solid material or fibrous cellulose of chemical, medical, and resin products in a suspension as a dispersion or emulsification, or finely dividing...
08/19/2008
7370819Device and method for grinding biological samples
In a biological sample grinding device and method, a bearing having a plurality of rolling elements disposed between a pair of rings is disposed in a container in which a fluid having at least one biological sample particle therein is introduced. With the bearing im...
05/13/2008
7337998System for comminution of multiple samples of biological specimens
An apparatus for comminuting biological specimens includes a receiving component provided with a drive source, at least one sample retainer configured for accommodating at least one biological specimen and constructed and arranged for engagement in the receiving com...
03/04/2008
7270284Tissue homogenizer
A tissue homogenizer. The tissue homogenizer comprises a first chamber, a pair of blades, a first filter and a second filter. The first chamber has a first opening and a second opening. The blades are disposed in the first chamber. The first filter is disposed in th...
09/18/2007
7240862Method and apparatus for disrupting cells in a fluid suspension by means of a continuous process
Method for disrupting S. Cerevisiae yeast cells in an aqueous solution, by means of a continuous process under high pressure (up to 4000 bar), using a homogenizer. The suspension to be processed passes through a homogenizing valve with a “sharp edgeâ...
07/10/2007
7238522Devices and methods for biomaterial production
An apparatus and a method for isolating a biologic product, such as plasmid DNA, from cells. The method involves lysing cells in a controlled manner separate insoluble components from a fluid lysate containing cellular components of interest, followed by membrane ch...
07/03/2007
7166561Lubricant-carrying substrate for maintenance of paper shredders
Paper shredders are maintained using lubrication substrates that have been treated with or that carry a lubricant. The lubrication substrate is fed through the shredding mechanism of a paper shredder. Rather than requiring disassembly of the paper shredder, maintena...
01/23/2007
7056009Dispersing tool with an inner shaft rotatable within a hollow shaft to create a pumping effect
A dispersing tool (1) is provided having a hollow shaft (2), which has an open, laterally slotted region on its free end (4) that faces away from a drive that is at the bottom in the position of use, and with an inner shaft (3), which can...
06/06/2006
7048211Flexible processing apparatus for isolating and purifying viruses, soluble proteins and peptides from plant sources
A flexible automated apparatus for isolating and purifying viruses, proteins and peptides of interest from a plant material is disclosed, the apparatus being applicable for large scale purification and isolation of such substances from plant material. The flexible a...
05/23/2006
6987018Container for holding cells or viruses for disruption
A container for holding cells or viruses for disruption comprises a chamber defined by two spaced apart, opposing major walls and side walls connecting the major walls to each other. At least one of the major walls has an external surface to which the transducer may...
01/17/2006
6942169Micromachined lysing device and method for performing cell lysis
A method and device for performing lysing on a cell-containing fluid, in which the fluid flows through a vibrating micromachined tube to physically rupture the cell walls (mechanical lysis), and/or to mix, agitate or homogenize the fluid during chemical lysis, and/o...
09/13/2005
6886764Device and process for pulverizing solid materials
A device and process for pulverizing solid materials is provided, which generates vertical and horizontal motion of grinding beads in multiple tube samples containing a sample to be pulverized. ...
05/03/2005
6880771Axially reciprocating tubular ball mill grinding device and method
A tubular vessel is loaded with a combination of grinding media and a material to be ground. The vessel is capped to contain the grinding media and material therein. Grinding of the contained material is effectuated by reciprocating the capped vessel in a direction ...
04/19/2005
6860679Adsorbent particles preparation method and treatment of soils polluted by hydrocarbons using said particles
The present invention relates to a method of preparing adsorbent particles formed from expanded plastics materials, said particles comprising cellular structures that are open at their surface, characterized in that a material constituted by agglomerated beads of sa...
03/01/2005
6739531Apparatus and method for rapid disruption of cells or viruses
An apparatus for disrupting cells or viruses comprises a container having a chamber for holding the cells or viruses. The chamber is defined by at least one wall having an external surface for contacting a transducer device. The transducer device has a vibrating sur...
05/25/2004
6706498Method for isolating DNA
The invention describes a method for the isolation of components from samples, particularly large molecular weight DNA from biological samples. The method involves the application of controlled oscillatory mechanical energy to the sample for short periods of time of...
03/16/2004
6699711Device and method for selective exposure of a biological sample to sound waves
A device and method are disclosed for selective exposure of a biological sample, preferably biological cell material, to sound waves. The device is provided with a receptacle for the sample, in which the biological sample is in a suspended form, and havin...
03/02/2004
6695236Process and device for the extraction of DNA, RNA and proteins from biological samples
A device for grinding biological samples to extract DNA, RNA and proteins including a multiplicity of rotary hammers supported by a hammer-carrier block and a lower mobile tray, the tray being movable between an operating position close to the hammer-carr...
02/24/2004
6680110Particle size reduction using supercritical materials
The present invention relates to a method of reducing particle size by the use of a supercritical gas, such as carbon dioxide or a refrigerant. The material is swollen by the supercritical gas at a high pressure. After the material has been allowed to swe...
01/20/2004
6578780Method for disintegrating sewage sludge
There is a method for the mechanical disintegration of biogenic sewage sludge, for which the sewage sludge, in an initial state, has microorganisms in the form of cells and a solid, which is formed essentially from aggregates of cells and suspended materi...
06/17/2003
6479277Method and apparatus for disruption of biological material
A method of disrupting biological material includes drying particulate material, mixing the material with a gas under pressure, releasing the pressure explosively and collecting the resultant product. The biological starting material is any particulate ma...
11/12/2002
6461472Explosively-split fragments obtained by water-vapor explosion of wooden source materials, wooden material containing such fragments as its aggregate, their manufacturing methods and machines
In order to inexpensive construction materials effectively utilizing timber resources and realizing any desired properties by using so-called low-quality materials including slim timbers, old timbers, wood cuttings produced by lumbering, bamboo, and so fo...
10/08/2002
6431476Apparatus and method for rapid ultrasonic disruption of cells or viruses
The present invention provides an apparatus and method for disrupting cells or viruses to release the nucleic acid therefrom. The apparatus includes a container having a chamber for holding the cells or viruses. The apparatus also includes an ultrasonic t...
08/13/2002
6426136Method of reducing material size
The present invention relates to a method of reducing particle size by the use of a supercritical fluid, generally carbon dioxide. The material is swollen by the supercritical carbon dioxide at a high pressure. After the material has been allowed to swell...
07/30/2002
6405948Liberating intracellular matter from biological material
A method of liberating intracellular matter from biological material having cells with cell walls includes subjecting the biological material to rapid pressure increases and decreases, and exceeding the elastic limit of the cell walls with the pressure in...
06/18/2002
6391541Apparatus for analyzing a fluid sample
A cartridge for separating a desired analyte from a fluid sample has a sample flow path and a lysing chamber in the sample flow path. The lysing chamber contains at least one filter for capturing cells or viruses from the sample as the sample flows throug...
05/21/2002
6235501Method for isolation DNA
The invention describes a method for the isolation of components from samples, particularly large molecular weight DNA from biological samples. The method involves the application of controlled oscillatory mechanical energy to the sample for short periods...
05/22/2001
6100084Micro-sonicator for spore lysis
A micro-sonicator for spore lysis. Using micromachining technology, the micro-sonicator uses ultrasonic excitation of spores to perform spore and cell lysis. The micro-sonicator comprises a container with a cavity therein for retaining the sample in an ul...
08/08/2000
6039867Device for continuous disintegration of activated sludge
A method is described for the continuous disintegration of microbial sludge in a sewage clarification or sewage treatment plant wherein the microbial sludge is decomposed biologically by bacteria and the resultant sludge (5) is exposed to sonic radiation ...
03/21/2000
6013183Method of liquefying microorganisms derived from biological wastewater treatment processes
A process for liquefying microorganisms present in biosolids, such as waste activated sludge, generated by municipal or industrial wastewater treatment plants is disclosed. The process includes the step of passing a slurry of the sludge at a high pressure...
01/11/2000
6000551Method for rupturing microalgae cells
A method for rupturing microalgae in an aqueous suspension is disclosed. In one embodiment the aqueous suspension is passed through a constriction into a liquid phase at a pressure sufficient to rupture the cells by circulating the aqueous suspension thro...
12/14/1999
5951875Adsorptive bubble separation methods and systems for dewatering suspensions of microalgae and extracting components therefrom
A process and system are disclosed for recovering mixed carotenoids from the alga Dunaliella salina. The harvested cells are ruptured, typically by circulating the algal suspension at high pressure through a pump loop. The cells can then be dewatered by a...
09/14/1999
5921477Apparatus for tissue preparation
An apparatus and method for preparing tissue samples for DNA, RNA or protein extraction of the present invention includes a reciprocating saw mounted to a frame and connected to a plurality of tissue sample containers containing tissue samples and agitati...
07/13/1999
5918819Devices and methods for isolating seeds of vegetables and fruits and for releasing and separating same from coats
Devices and corresponding mechanical non-fermentive methods for isolating seeds from fruits or vegetables and for releasing and separating the isolated seeds from their coats, according to one embodiment the device includes a first station including a fir...
07/06/1999
5829696Sealed grinding and homogenizing apparatus
An apparatus for grinding specimens, comprises a container, a grinder, a closure for the container, and a seal contained in the closure. The container has an interior grinding surface and contains an opening through which specimens are introduced for grin...
11/03/1998
5772721Process for producing odorless organic and semi-organic fertilizer
A substantially odorless and sterilized fertilizer in pellet form is produced by combining a dry organic waste material and a dry binder material, then combining the resulting dry mixture with steam, water and/or further organic waste in the form of sludg...
06/30/1998
5769332Efficient production of landplaster by collecting and classsifying gypsum fines
A landplaster production method includes the steps of providing a supply of particulate gypsum material, drying the gypsum material by passing a stream of heated air thereby as the material is rotated, classifying and separating the dried particles into f...
06/23/1998
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