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Class 435/295.1 - Including a draft tube for agitation


Subclass of Class 435 - Chemistry: molecular biology and microbiology
Definition: Apparatus including a tubular element extending from a
No. of patents: 66
Last issue date: 04/01/2008


1    
NumberTitleIssue Date
7351576Compost tea machine
The invention relates to an in home apparatus for simultaneously suspending, aerating, agitating, extracting and entraining a compost water nutrient culture. A beaker contains the compost nutrient water culture. A perforated elastic membrane transversely covers the ...
04/01/2008
7329539Bioreactor for sewage and wastewater treatment
The present invention relates to a bioreactor for sewage and wastewater treatment, which is capable of agitating and supplying oxygen simultaneously. A bioreactor of the present invention, comprises a culture drum in which microorganisms are cultured; a supplier for...
02/12/2008
7309599Aerobic fermentation method
A method and apparatus for effectively aerating large-scale cultures of microorganisms is disclosed. ...
12/18/2007
7201884Process and apparatus for performing a gas-sparged reaction
An improved process, such as a microbiological or enzymatic process, and apparatus, such as an apparatus for producing a cellular product, comprising introducing a gaseous feed stream of at least one gas of low solubility into an aqueous medium containing a microorg...
04/10/2007
6869792Method and apparatus for performing multiple processing steps on a sample in a single vessel
A method is provided which comprises: performing a plurality of fermentations, each fermentation in a different sample vessel; and performing a further processing step on the plurality of fermented samples where the sample is retained in the same sample vessel as th...
03/22/2005
6864084Bioreactor and method for fluidly suspending a product
A method for floating at least one substance for growing a tissue part in a bioreactor. The method includes providing at least one substance consisting of one of a tissue part, a scaffold having cells deposited thereon, and a scaffold including a tissue part thereon...
03/08/2005
6635441Multi-sample fermentor and method of using same
A fermentation apparatus is constructed to produce a known and repeatable amount of unpoisoned fermentation product using multiple fermentation vessels. To facilitate further processing compatible with other product processing steps, the fermentation appa...
10/21/2003
6632658Bioreactor and method for fluidly suspending a product
The method for the holding in flotation of a substance such as a tissue part in a bioreactor (61) is characterized in that the substance (73) is acted upon with a fluid; and in that the flow of the fluid acts counter to gravity in such a manner that the s...
10/14/2003
6632657Apparatus for cultivating tissue cells and microorganisms in suspension
An apparatus for cultivating tissue cells or microorganisms in suspension, in a manner which ensures formation of an axially symmetric vortex motion of liquid with an axial countercurrent flow in the cell suspension without stagnant zones at various locat...
10/14/2003
6464384Mixer systems
A system for providing improved bulk liquid mixing and effective gas-liquid contacting for mass transfer of the gas to the liquid, especially a non-Newtonian liquid, the viscosity of which decreases when under shearing conditions (shear thinning), in an u...
10/15/2002
6391628Digester with agitator and method for operating an agitator in a digester
A digester with an agitator and a method of operating an agitator in a digester can be used, for instance, in agricultural biogas plants and communal clarification plants. The digester with an agitator and the method feature improved mixing of the waste p...
05/21/2002
6168949Bioreactor with vortex mixing chamber
The invention relates to an apparatus for the aerobic multiplication of micro-organisms. A tank with a conical bottom shape holds the fermentation broth and a circulating pump outside the tank circulates the fermentation broth from the bottom of the tank ...
01/02/2001
5972661Mixing systems
A system for providing improved bulk liquid mixing and effective gas-liquid contacting for mass transfer of the gas to the liquid, especially a non-Newtonian liquid, the viscosity of which decreases when under shearing conditions (shear thinning), in an u...
10/26/1999
5851820Unit for the preparation of fermenting gas
A unit for the preparation of fermenting gas by fermenting viscous media with mixing paddles that can be moved continuously back and forth and in the same direction in the tank to mix the medium to be fermented. Alternately, the mixing paddles hang from a...
12/22/1998
5811259Biochemical reactor
A biochemical reactor utilizing an immobilized carrier which is useful in applications such as denitrification of waste water and includes a circulation conduit within the interior of the biochemical reactor. A feed conduit feeds recirculating fluid throu...
09/22/1998
5593890Apparatus suitable for conducting gas-liquid reactions
An improved apparatus for conducting gas-liquid reactions, comprising a vessel having at least one ascending flow chamber and at least one descending flow chamber. The vessel is especially useful in conducting high cell density fermentation processes, for...
01/14/1997
5518920Biological treatment of hazardous waste
Apparatus for treatment of material containing biodegradable volatile organic compounds in solid or liquid state, comprises a first chamber having a gas inlet and a gas outlet, the gas inlet being below the gas outlet. Material to be treated is supported ...
05/21/1996
5501971Method and apparatus for anchorage and suspension cell culture
A method and apparatus cultivates anchorage and nonanchorage cell in a reactor. A reactor includes a basket type packed bed and an internal recirculation device. The basket includes a top and bottom portion for allowing medium to flow uniformly through th...
03/26/1996
5320963Bioreactor for the perfusion culture of cells
A bioreactor for perfusion culture of suspension cells has an inversely-conical tank which includes a cell culture zone and a cell settling zone disposed annularly relative to the cell culture zone in the upper region of the tank. The cell settling zone i...
06/14/1994
5270207Circulatory culture equipment
A culture equipment for bio-organisms such as animal cells and plant cells, having substratum and a circulation-inducing chamber, accommodating the material for substratum made of fibrous, or porous, or layered substance, such as of ceramics, plastics, re...
12/14/1993
5248613Nonhomogeneous centrifugal film bioreactor
A centrifugal film bioreactor useful for processing both shear sensitive and shear requiring or tolerant cells. A liquid phase is directed upward in a guide tube to rotating truncated conical surfaces which transport the liquid phase across their surfaces...
09/28/1993
5227136Bioslurry reactor for treatment of slurries containing minerals, soils and sludges
A reactor vessel for use in treating slurries containing minerals, soils or sludges contaminated with toxic organic substances is disclosed. The vessel includes a tank, having a sealed cover, a mixer arrangement, an air supply arrangement and an exhaust g...
07/13/1993
5169781Continuous perfusion apparatus utilizing aeration
An apparatus for the continuous perfusion of a liquid in cell culture, hydroponic and breeding processes includes a container having a sealed lower portion and an open upper portion, a hollow tube having an upper end in the open upper portion and a lower ...
12/08/1992
5158890Fermenter for the production of alcohol
A fermentation apparatus for the production of alcohol provides for continuous circulation of must through the apparatus. A pumping column is connected to a top of a fermentation vat via a back pressure valve and extends above the vat for pumping fermente...
10/27/1992
5102104Biological conversion apparatus
A cylindrical tank (12) is formed from stainless steel plates. Proximate an open top end (17) of the tank (12) are four evenly spaced mixing assemblies (20). An intake pipe (22) is positioned with an open end (38) below the surface of a biological convers...
04/07/1992
4959084Combined air and water pollution control system
A bioaquatic air pollution control system for controlling both water and atmospheric pollution. The pollution control system includes an exhaust for directing polluted gases out of a furnace and a fluid circulating system which circulates fluid, such as w...
09/25/1990
4904601Cell culture tank
Here is disclosed a cell culture tank comprising a cylindrical screen mounted upright within the cell culture tank and having upper and lower openings through which culture medium flows, a pipe for supply of oxygen or oxygen containing gas and an agitator...
02/27/1990
4891318Method for the fermentative preparation of polysaccharides, in particular xanthane
For the fermentative preparation of polysaccharides, in particular xanthane, water, production medium (sugars, nutrient salts), and an inoculation material of a suitable aerobic bacterium are mixed in a reactor as reaction components, the production mediu...
01/02/1990
4883759Fermentation method and apparatus
A process for the production of microbial cells by fermentation of carbonaceous material in a foam fermenter containing an oxygen-enriched nutrient medium. The process uses a source of carbon which is assimilable by the microorganism for the produciton of...
11/28/1989
4814278Culture apparatus and method
An apparatus for cell culture by perfusion comprising a cell culture tank for suspension culture, said cell culture tank having a suspension cell culture zone, a cell settling zone, an opening for discharging a spent culture medium from the settling zone ...
03/21/1989
4748123Continuous fermentation device
A continuous fermentation device for receiving a suspension culture of cells includes a fermentation vessel having inlet means to deliver suspension culture medium; baffle means defining, in combination with interior walls of said vessel, a downcomer and ...
05/31/1988
4717669Centrifugal film fermenter
Fermentation equipment is provided with multiple rotating conical surfaces which create a flow of the liquid phase along the conical surfaces and produce a forced flow of the gaseous phase across the liquid phase, thus resulting in much improved mass tran...
01/05/1988
4684614Mixing or pumping apparatus for the treatment of flowable thin or highly viscous media
Arrangement for the treatment of fluent, thin and highly viscous media, particularly for the fermentation of micro organisms, for mixing, pumping and the dissipation of the medium. The arrangement is based on a novel principle of bladeless mixing and pump...
08/04/1987
4683062Method of circulation of a liquid phase through a solid phase particularly for biocatalytical reactions and a device for realization thereof
The method of circulation according to the invention consists in causing a part of the liquid part to rotate whereby centrifugal forces causes the rotating part of the liquid phase to form a rotating vortical liquid spindle that exerts a suction effect. T...
07/28/1987
4656138Fermenter
The invention relates to apparatus for cultivating microbiological substances. The fermenter comprises a container (1) accommodating an aerator (4) and a stirring unit (5) having the form of a circulation tube (6) and membrane (7). A partition (9) having ...
04/07/1987
4643972Method and apparatus for multiphase contacting between gas, solid and liquid phases
Multiphase contacting between gas, solid and liquid phases is effected using a novel apparatus comprising a cylindrical vessel, a draft tube, a conical bottom and a gas-sparger system. Mild and uniform mixing is achieved within the novel apparatus while s...
02/17/1987
4634675Agitator for a fermentation and tissue culturing vessel
An improved agitator for use with a fermentation and tissue culturing vessel acting as a microcarrier culture vessel is provided. The agitator includes a hollow body assembly having an open end and a closed end and at least one tubulation communicating wi...
01/06/1987
4482458Process and apparatus for the anaerobic treatment of waste water in a filter including granular material
Waste water to be treated is introduced into a filter including granular material for supporting the biomass resulting from an anaerobic treatment operation. During such treatment operation biogas is formed, and the waste water being treated and the granu...
11/13/1984
4442889Apparatus for combined cooling and aeration of biochemical-action vessels
A biochemical-action vessel accommodates a substrate in which biochemical reactions are caused by microorganisms. A heat-exchange arrangement is provided in the vessel and removes the heat generated in the substrate by such reactions. The substrate is cir...
04/17/1984
4419244Method and arrangement for aeration of liquids
A method of aerating liquids, particularly for aerobic growing of microorganisms, has the steps of forming a circumferential stream of liquid, forming a longitudinal stream of liquid, and superimposing these streams so as to form a combined closed spiral-...
12/06/1983
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