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| Number | Title | Issue Date |
| 7435340 | Wastewater treatment system This disclosure describes wastewater treatment systems and methods of treating wastewater. In one exemplary method, a wastewater is split into first and second wastewater fractions. The first fraction is delivered to a membrane bioreactor, which may produce an efflu... | 10/14/2008 |
| 6884354 | System and process for the treatment of wastewater A system and process for the treatment of wastewater in a series of sequencing batch reactor basins wherein wastewater is sequentially fed, treated and discharged on a continuous basis. ... | 04/26/2005 |
| 6881344 | Method for setting up a dialysis treatment in a dialysis machine A method of setting up a dialysis treatment in a dialysis machine (1) provided with a device (6) for setting up the dialysis treatment, possessing a microprocessor (11), a data input (12, 13) and a screen (13), comprises the steps ... | 04/19/2005 |
| 6878273 | Dialyzing apparatus A dialyzing apparatus includes a dialyzer which removes water from blood of a patient at a pre-set water-remove rate, an autonomic-nerve-activity-related-information obtaining device which obtains autonomic-nerve-activity-related information that is related to an ac... | 04/12/2005 |
| 6830693 | Method for setting up a dialysis treatment in a dialysis machine A method of setting up a dialysis treatment in a dialysis machine may include the steps of determining conditions of a dialysis treatment adapted to a specific patient, determining a first function (U(t)) of a first quantity (U) characterizing the dialysis treatment... | 12/14/2004 |
| 6821441 | Method 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 |
| 6814864 | Extra-corporeal blood purification device An extra-corporeal blood purification device includes a blood filter, and elements for measuring at least one parameter affected by filter resistance to liquid flow, elements for determining at least a threshold value of the parameter, elements for comparing the par... | 11/09/2004 |
| 6811707 | Dialysis machine and method of checking the functionality of a dialysis machine A dialysis machine may include a main control unit provided with a memory that stores the parameters of a dialysis treatment carried out on a patient and a plurality of slave control units interacting with the main control unit. The slave control unit may provide th... | 11/02/2004 |
| 6808627 | Dialyzing apparatus A dialyzing apparatus including a dialyzer which removes water from blood of a patient at a water-remove rate, an arteriosclerosis-related-information obtaining device which obtains arteriosclerosis-related information that is related to a degree of arteriosclerosis... | 10/26/2004 |
| 6793892 | Device and method for separating components of a fluid sample A specimen collection and separation assembly is provided. The assembly includes a tube having closure secured to the open top of the tube. The closure includes a section that is pierceable by a needle cannula for depositing a liquid specimen in the tube. A separato... | 09/21/2004 |
| 6649917 | Cleaning system for UV disinfection module/reactor A cleaning system for a UV disinfection module having a pair of headers with a multiplicity of lamps extending therebetween including a cleaning plate having a multiplicity of openings therein, the openings having lamp wipers and arranged to substantially... | 11/18/2003 |
| 6325775 | Self-contained, transportable blood processsing device A blood processing device is self-contained within a case, which sized to enable hand transport. Self-contained in the case is a blood separation device, which, for example, can comprise a centrifuge. A controller is also self-contained in the case. The c... | 12/04/2001 |
| 6303024 | Three batch fill/settle/draw electronic controller for use with a reverse osmosis unit An electronic controller for controlling the fill, settle and draw operations of three settling tanks which are used with a reverse osmosis unit. The three settling tanks provide a pair of liquid level input signals which indicate the water level within e... | 10/16/2001 |
| 5997738 | Reverse osmosis water fountain machine with water saving device A water saving device for a reverse osmosis water fountain machine is provided in which an aspirating pipe with a solenoid valve is coupled to an intake pipe line at the front end of the reverse osmosis cylinder. Before that joint, another solenoid valve ... | 12/07/1999 |
| 5938938 | Automatic dialysis method and apparatus A method for automatic dialysis using a dialysis unit which, in service, is connected to a patient undergoing a dialysis treatment, including the phases of acquiring allowed values of input parameters and desired values of patient parameters, acquiring ac... | 08/17/1999 |
| 5800713 | Method and apparatus for inspissating solid-liquid mixtures by membrane technology To thicken remaining residues in ultrafiltration or microfiltration for clarifying fruit juices, systems having membrane module groups (1, 2, 3) connected in series are used in the cross flow process with a residue circuit. The groups (1, 2, 3) can be ind... | 09/01/1998 |
| 5672281 | Fluid filtering apparatus and method An apparatus and method for separating an effluent into a filtered liquid component and a concentrated sludge component are described. A screen for filtering the effluent is positioned to divide a chamber into two compartments, one for concentrating sludg... | 09/30/1997 |
| 5584990 | Pool water purification system for a plurality of pools The method of cleaning porous ceramic filters with a backwashing apparatus comprising an accelerating circulation path and a unit for mixing accelerated water with high-pressure air can be implemented with compact equipment to achieve efficient cleaning. ... | 12/17/1996 |
| 5476584 | Backwash/rewash traveling bridge filter and related process A method of cleaning a filtration tank having a plurality of side-by-side gravity flow filter cells, each having an outlet port in communication with a filtrate channel common to all of the cells in an automatic backwash/rewash system, by subjecting each ... | 12/19/1995 |
| 5221467 | Contaminated solution filtration apparatus and machining solution filtration apparatus for machining device A machining solution filtration apparatus for a machining device which includes: a filter, a filter medium which is arranged separately from the filter and supplied continuously; a unit for supplying a contaminated machining solution to the filter medium;... | 06/22/1993 |
| 5133876 | Method and apparatus for aerating wastewater using sequential aeration of different zones A wastewater aeration system in which the volume of wastewater is divided into a plurality of different zones which are aerated sequentially one at a time with the full capacity of the blower supply sized for oxygenation needs. In the case where the oxyge... | 07/28/1992 |
| 5112477 | Purified water and ice dispensing apparatus A vending machine that dispenses either purified ice or purified water in predetermined quantities in response to a fixed payment by a user. The machine consists of compartmentalized sections for each specific function, comprising a water purification and... | 05/12/1992 |
| 4861494 | Automatic cycle control arrangement and method for a pressure filter A pressurized filter is disclosed of the type including a filter media layer disposed in a filter chamber which is pressurized with a feed layer to cause filtering flow therethrough, and a diaphragm in the chamber operated to dewater the chamber after eac... | 08/29/1989 |
| 4770770 | Water supply system using reverse osmosis unit for treatment of water supply A water supply system for use in connection with a variety of water using equipment such, for example, as commercial ice makers and commercial steam cooking equipment wherein the water supply system utilizes a reverse osmosis unit thereby providing water ... | 09/13/1988 |
| 4673493 | Apparatus for supplying filtered liquid The present invention relates to an apparatus of a fixed type for supplying filtered liquid which is able to filter liquid containing impurities of minute solid particles and then supply the filtered liquid while further filtering the same, said apparatus... | 06/16/1987 |
| 4639312 | Filter press flow control system for dewatering sludge A control system has been invented for feeding settled sludge to two filter presses without the use of a surge tank. The system provides for constant feed rates from a solids settling tank, even as filter press capacity decays and the filter press is take... | 01/27/1987 |
| 4608159 | Boiler water/boiler feed water automatic sampler system A sampling system for boiler water or boiler feed water has an actuator actuated by an external actuator including the following components. A source to supply water having a prescribed temperature and within a prescribed pressure. A flow regulating means... | 08/26/1986 |
| 4502874 | Continuous filtration Means are provided for continuous filtration of foreign matter from a fluid stream, without requiring a discontinuance of filtration to clean filter surfaces. The apparatus alternately directs the fluid to be filtered to one or another of a plurality of f... | 03/05/1985 |
| 4322297 | Controller and control method for a pool system A controller and method for controlling the operation of electrically powered pool related apparatus in recreational pool system, and more particularly for controlling the flow of pool water through the pool system and water-conditioning apparatus, is dis... | 03/30/1982 |
| 4162973 | Water polishing system Waste water containing pollutants such as suspended solids and emulsified oil is pumped continuously through a self-contained separating or polishing system utilizing a simplified plug-in module to remove the pollutants. The suspended solids are removed b... | 07/31/1979 |
| 4155850 | Fluidic filters A self-cleaning filter device comprises a fluidic oscillator having a pair of passages through which fluid is directed alternately, and filter elements which fluid can flow from said passages to an auxiliary outlet. A main outlet communicates with the pas... | 05/22/1979 |
| 4151080 | System and apparatus for control and optimization of filtration process A process control apparatus and system for dewatering a solids ladened slurry of water and waste water embodying one or more of four primary process control techniques, depending upon the particular process application. The four process control techniques... | 04/24/1979 |
| 3932279 | Multi-tank ion exchange water treatment system A series of ion exchangers are connected in parallel in a water treatment system and are electrically interlocked against simultaneous regeneration. After an exchanger regenerates, it is held in standby status and is automatically returned to service use ... | 01/13/1976 |
