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Class 210/740 - Density or specific gravity sensing


Subclass of Class 210 - Liquid purification or separation
Definition: Process in which the mass per unit volume (either actual
No. of patents: 57
Last issue date: 04/29/2008


1    
NumberTitleIssue Date
7364657Integrated system for on-site cell acquisition, processing, and delivery
Numerous embodiments of a system and method for treating cardiac tissue are described. In one embodiment, bone marrow cells are extracted from a patient. The cells are then processed to isolate mononuclear cells, which can then be delivered back near the cardiac tis...
04/29/2008
7347945Method and an installation for separating out multiphase effluents
The invention relates to a method and to an installation for separating out an effluent made up of a multi-phase fluid mixture. According to the invention, said installation includes gravity separator means whose geometrical separation characteristics can be adjuste...
03/25/2008
7223344Method for treating an exhausted glycol-based slurry
A method of separating, recovering and reusing components of an exhausted slurry used in slicing silicon wafers from a silicon ingot. In the method, the solid particles and lubricating fluid of the exhausted slurry are separated without decreasing the viscosity of t...
05/29/2007
7219805Sieve screen level sensor
Sieve screen level sensing in a filtering apparatus (10) for filtering fine powder material (M) which includes a sieve (12) having a material inlet (24) and a material outlet (26), and a sieve screen (14) is disposed within the sie...
05/22/2007
7132579Method of chlorine purification and process for producing 1,2-dichloroethane
A method for chlorine purification in which crude chlorine containing nitrogen and/or oxygen is purified to separate the nitrogen and oxygen from the chloride, characterized in that the crude chlorine containing nitrogen and/or oxygen is contacted with 1,2-dichloroe...
11/07/2006
7052599Method and apparatus for reuse of abrasive fluid used in the manufacture of semiconductors
An apparatus and method recycles the abrasive fluid or slurry effluent used in the polishing step in the manufacture of semiconductors. Agglomerations of abrasive grains built up in the slurry effluent are crushed using a mill, ultrasonic oscillation, or pressurized...
05/30/2006
6982032Apparatus and method for biological treatment of environmental contaminants and waste
The invention is directed to an apparatus for delivering activated microorganisms to an environment to be treated. The apparatus has a bioreactor containing microorganisms, a supply of organic and inorganic nutrients and a controller. The controller maintains the co...
01/03/2006
6951612Blood centrifuge having overhanging disposable blood container
A centrifuge system with an externally positioned sensor assembly for detecting the separation of components in a fluid sample, such as platelets in a blood sample. The system includes a centrifuge with a drive portion and a rotor portion with a sample reservoir or ...
10/04/2005
6929537Slurry recycling method
A slurry recycling method comprising the steps of: separating a spent slurry containing silicon dust resulting from slicing of a silicon ingot in the presence of a slurry composed of abrasive grains and a dispersion medium in which the abrasive grains are dispersed,...
08/16/2005
6902539Extracorporeal blood processing methods and apparatus
An extracorporeal blood processing system is disclosed which includes a variety of novel components and which may be operated in accordance with a variety of novel methodologies. For instance, the system includes a graphical operator interface which directs the oper...
06/07/2005
6878280Wastewater clarification methods and apparatus
The invention relates to a liquid clarifier useful for removing solids suspended in a wastewater stream. Settled biological solids are taken from the clarifier and combined in a mixing chamber with a wastewater stream. The combined liquid is provided to a settling r...
04/12/2005
6821441Method for the purification of blood by means of hemodialysis and/or hemofiltration and apparatus for performing said method
The present invention refers to a method for blood purification by means of hemodialysis and/or hemofiltration, wherein to the blood in the extra-corporeal circuit of the hemodialysis and/or hemofiltration device a substitution solution is added upstream as well as ...
11/23/2004
6811706Activated sludge process optimization
An apparatus and a method for controlling and optimizing the performance of the activated sludge process and the plant or process so controlled by measuring the parameters of most importance over time, i.e., the sludge's settling, compacting, and flocculating charac...
11/02/2004
6793826Method for recovering insoluble solids from a mixture
Methods for recovery of tartrate-containing, insoluble solids from an essentially settled grape-based mixture. More generally, methods for the recovery of insoluble solids, that have a predetermined characteristic from essentially settled mixtures are disclosed. The...
09/21/2004
6790367Method and apparatus for separating and measuring solids from multi-phase well fluids
A method and an apparatus for separating and measuring solids from multi-phase well fluids. The apparatus comprises a separator; an upper solids level and a lower solids level sensor, both connected to the separator; a dump valve operatively connected to the separat...
09/14/2004
6780322Hemofiltration system
A multipurpose hemofiltration system (10) and method are disclosed for the removal of fluid and/or soluble waste from the blood of a patient. The system (10) continuously monitors the flow rates of drained fluid, blood, and infusate. When necessary, th...
08/24/2004
6682655Concrete recovery system
A method for recovering usable material from waste concrete is herein described. Specifically, waste concrete is mixed with water containing hydration stabilization admixtures, forming an aggregate slurry. The aggregates are then removed from the slurry f...
01/27/2004
6638433System and method for controlling water-only cyclones
A system for controlling the operation and performance of water-only cyclones used in coal preparation plants for separating a fine raw coal slurry into fine coal and fine refuse slurries includes a variable speed pump for feeding the slurry from an under...
10/28/2003
6565755Sludge density measurement for controlling a sludge treatment stage
A process and apparatus therefore in which a sludge treatment stage 24 is controlled in response to the density or solids content of the sludge includes flowing sludge along a flow line 1 towards the treatment stage, taking a sample from the flow line 1, ...
05/20/2003
6322710Slurry managing system and slurry managing method
A managing system for managing slurry, which is used to machine workpieces. The slurry contains dispersion liquid and abrasive grains. Slurry that has been used in machining further includes impurities that are smaller than the abrasive grains. A first de...
11/27/2001
6238572Separation tank module for kitchen effluent
An apparatus for the separation of immiscible liquids from liquid influent has a containment vessel. An influent channel extends toward the bottom of the vessel so the influent is discharged vertically upward, a downwardly curved deflection plate is mount...
05/29/2001
6203712Process for separation by settling in a plurality of distinct zones
A process for separating at least two liquid phases which are at least partially non miscible is characterized in that after reacting, a polyphase effluent is settled in at least two distinct settling zones arranged in parallel, each of these settling zon...
03/20/2001
6120689High purity water using triple pass reverse osmosis (TPRO)
A method for producing high purity product water using a three pass reverse osmosis system....
09/19/2000
6110382Automated effluence conditioning and treatment
Automated process, conditioning and treatment apparatus and methods are disclosed that are particularly well adapted for closed loop systems using or producing aqueous effluence with varying amounts of suspended solids therein, the apparatus and methods d...
08/29/2000
5958244Cross-flow filtering process for separating fluid from a free-flowing medium and installation for implementing it
For thickening a retentate by means of membrane filtration (ultra-/micro-filtration) to obtain the highest possible wet sludge proportion, a gaseous medium is admixed with the retentate. To this end an open feed line (13) above the retentate level (14), a...
09/28/1999
5902487Process and apparatus for dewatering a suspension
A plant for conditioning and dewatering a suspension comprises a belt press, centrifuge or other continuous dewatering apparatus (3), a flow-line (1) leading to the dewatering apparatus, a pump (2) for causing suspension to flow along the line (1), means ...
05/11/1999
5824228Method and device for removal, within a closed reactor, of the phase of the lowest density from a biphase system with presence of interface
A method and apparatus for removal of a phase from a biphase system having an interface between the phases includes a sensor for sensing a level of the phase of highest density arranged beneath and at a distance from the plane of the suction port of a tub...
10/20/1998
5620606Method and apparatus for reacting oxidizable matter with particles
Method/system of adding solid particles to inhibit or prevent plugging in a reactor at conditions such that the temperature and pressure are at least in the vicinity of supercritical conditions for water. Particles may be added in conjunction with a pH-ad...
04/15/1997
5545333Method for preparing a material for high pressure deliquification
A belt filter press having a wedge zone which can be adjusted during operation of the filter press to prepare a sludge or other material to be deliquified in the most efficient manner for high pressure deliquification also includes a sealing arrangement f...
08/13/1996
5529695Apparatus and method for removing swarf and fines from cutting fluids
A system for removing particulates, formed as metal is machined, from coog and lubricating fluid. The system has a tank filled with fluid. The bottom of the tank slopes forward. The tank receives contaminated fluid at its top rear. The contaminants are s...
06/25/1996
5462672Process for treating sludge and system for the same
Sludge which is supplied from an untreated sludge tank 3 and diluting water from a diluting water supply facility 14 is charged into a continuous kneading mixer 12 for diluting the sludge to make the specific weight of the sludge 1.15 to 1.35. The diluted...
10/31/1995
5395603Automatic control system for a chemical process, especially a wet process phosphoric acid plant
Maximum throughput of a wet process phosphoric acid plant at a fixed recovery can be obtained by controlling the filter feed to give a desired specific gravity of the filtrate from the last washing of the gypsum cake. The filtrate from the last washing of...
03/07/1995
5261791Method and apparatus for recovering pollutants from an aquifer
Pumping apparatus for recovering a first liquid, such as a pollutant, floating on a second liquid, such as ground water. A pump immersed in the second liquid, or ground water, operates to produce a cone of depression and discharge the second liquid into a...
11/16/1993
5248442Method and apparatus for measuring shade of hydrocyclone underflow
A method and means for measuring a characteristic, in particular one associated with particle size, of any of the feed, underflow or overflow streams of a hydrocyclone is provided. Information as to the flowrate and density of the feed stream as well as t...
09/28/1993
5094757Radiator cooling system cleaner/refiner
A system for cleaning radiator systems waste coolant, including a filter, a flush tank refinery, a source of cleansing chemical, a pump to circulate radiator coolant from the vehicle through the cleaning system back to the vehicle, a quick-connect conduit...
03/10/1992
5076890Method for pulp quality control and regulation
The present invention relates to a method of qualitative and quantified monitoring of the instant local physical state of a substantially incompressible fluid material such as a liquid or pasty substance (for instance slurry or pulp) and a device for carr...
12/31/1991
5062964Process for control of a flotation system
In a flotation system, the generated quantity of foam is determined and, independent thereof, process parameters which directly or indirectly affect the generated foam quantity are reduced in their quantity depending on foam quantity. This is brought abou...
11/05/1991
5013488Apparatus for control of hard water scale in evaporative coolers
Disclosed is a method and apparatus for preventing or minimizing scale deposition from hard water onto heat transfer surfaces in atmospheric cooling towers, such as those used in air conditioning and refrigeration systems, where evaporative cooling of wat...
05/07/1991
5002671Hydro-cyclone with circulation outlet for boundary layer flow
A hydro-cyclone includes a hollow round casing having, co-axially in series, a cylindrical portion and a frusto-conical portion tapering toward one end of the cyclone. An end plate closes off the cylindrical portion opposed to the taper end. A tangential ...
03/26/1991
4960513Separator for liquids of different densities
A liquid separator allows a mixture of oil and water to separate, then discharges the two fractions. A separating tank is automatically filled when a float indicates a low level. A second float is close to the bottom of the tank and has a density such tha...
10/02/1990
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