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| Number | Title | Issue Date |
| 7413666 | Method for selectively sampling particulates in boiler/steam cycle corrosion transport An improved method for isolating the impacts of flow-altering events in corrosion transport from those due to steady state corrosion in boiler/steam cycle processes. The method includes monitoring, in real time, with a particle counter or particle monitor levels of ... | 08/19/2008 |
| 7332125 | System and method for processing blood A system for filtering and processing blood that is simple to implement and that reduces the need for human intervention. The system may be used to collect red blood cells (RBCs). For such a system, a disposable set may be provided with an inlet port, an RBC contain... | 02/19/2008 |
| 7229560 | Sack-based processes for recovering oil floating on water One or more water- and oil-porous containers or sacks are made of a pair of mesh sheets affixed together and stiffened around their perimeter. The sacks can be partially filled with a multitude of tubular bodies made of an oil-entrapping polymer, which have their lo... | 06/12/2007 |
| 7160440 | Storm water separator system A storm water separator system having side walls constructed from sheet piling to enable installation within a small footprint and in poor soil conditions. The separator system has an upper bypass chamber and a lower treatment chamber with a diffuser directing inflo... | 01/09/2007 |
| 7112281 | Underdrain for filtration membrane A device and method for removal of liquid from the downstream side of a membrane or a well, such as a well of a multiwell plate. More specifically, the present invention is directed to a wicking structure, which channels droplets of liquid away from a membrane in co... | 09/26/2006 |
| 7094338 | Method of making and using a filter in the form of a block of agglomerated copolymer fragments One of the exemplary filter systems described includes a bracket and a filter module that can be suspended from the bracket by a plurality of flexible supports. The bracket can support the filter system beneath the grate of a storm drain without the need for the fil... | 08/22/2006 |
| 7048878 | Process of forming oil-absorbent bodies A process for forming an oil-sorbent composition of matter with bound combinations of styrene-butadiene-styrene (SBS) and ethylene propylene diene monomer (EPDM) utilizes a low-temperature extrusion process. The SBS, or both materials, may be in the form of multitud... | 05/23/2006 |
| 7014783 | Flow splitting weir A method of minimizing head loss in a filter system including a plurality of drop pipes, a plurality of filter cells having a maximum influent level, and a distribution box having a maximum influent level, a base, and a plurality of distribution cells. The method in... | 03/21/2006 |
| 7001527 | Stormwater treatment apparatus and method A liquid purification and separation apparatus for separation of pollutants in stormwater runoff is disclosed. This apparatus utilizes gravitational separation and tortuosity, resulting from a plurality of baffles both perpendicular to and oblique to the primary wat... | 02/21/2006 |
| 6991727 | Hollow fiber contactor systems for removal of lipids from fluids This invention is directed to systems and methods for removing lipids from a fluid, such as plasma, or from lipid-containing organisms. These systems contact a fluid with an extraction solvent, which causes the lipids in the fluid to separate from the fluid or cause... | 01/31/2006 |
| 6759007 | Blood processing systems and methods employing fluid pressure actuated pumps and valves Systems and methods for processing blood use at least one fluid activated pump and at least one fluid activated valve. The systems and methods apply positive and negative fluid pressures to operate the pump and valve. Different pressure conditions are applied to the... | 07/06/2004 |
| 6730266 | Hemofiltration systems, methods and devices used to treat inflammatory mediator related disease A hemofiltration system for a mammal is provided with a hemofilter and an adsorbent device. The hemofilter removes ultrafiltrate from a blood stream extracted from the mammal to create a filtered blood stream and an ultrafiltrate stream. The adsorbent device has one... | 05/04/2004 |
| 6719912 | Bar screen system with emergency discharge doors A screen system used in fluid channels has emergency discharge doors. The emergency discharge doors are located within the debris plate of the bar screen system and can be opened, as needed, to prevent fluid from overflowing should the grid screen become obstructed.... | 04/13/2004 |
| 6685835 | Method for filtering surface water with thin supernatant layer and implementing plant In a method of filtration, a liquid to be filtered is brought into contact with the surface of a filter medium and is passed through the filter medium. A supernatant liquid layer is created on the surface of the filter medium, and the upper level of the l... | 02/03/2004 |
| 6679994 | Screening apparatus A method dealing with an overflow capacity of a fluid screening system is disclosed, the system (20) including a first screen (22) for screening objects of a first predetermined size from a fluid channel (21) the method comprising the step of: providing a... | 01/20/2004 |
| 6585901 | Method of draining water from low-consistency water-fiber suspensions A method of draining water from low-consistency water-fiber suspensions, in which the water-fiber suspension is fed to a filtering surface comprising holes. The rougher fibers are first separated from the water-fiber suspension and fed to the filtering su... | 07/01/2003 |
| 6582613 | Engine coolant filter apparatus and method A method and apparatus for filtering particulate matter from internal combustion engine coolant where a replaceable filter is connected between the heater core supply and return lines. A portion of the normal engine coolant flow is directed from a heater ... | 06/24/2003 |
| 6551504 | Valve for a fluid treatment system A valve in a fluid treatment system adapted for controlling the flow of fluid between a source and a treatment media disposed in a treatment chamber. The valve includes a housing having a fluid passageway between an inlet and an outlet; a containment cham... | 04/22/2003 |
| 6533946 | Apparatus and method for recycling drilling slurry An apparatus and method for recycling drilling mud contaminated with particulates, consists of channelling a stream of contaminated slurry onto a screen deck, with the partly cleansed liquid entering a mixing tank. Liquid within the tank is continually mi... | 03/18/2003 |
| 6531057 | Method and apparatus for separating solid material from water used to flush livestock flush lanes A method and apparatus for flushing flush lanes comprising providing a process pit to recycle flushed water; providing a solid waste separator; providing a storage lagoon; pumping a first selected volume of water from the storage lagoon and a second volum... | 03/11/2003 |
| 6506924 | Method for recovery of catalyst components A method is disclosed for recovering a substantially water-soluble solvent from a reaction mixture comprising at least about 35% by weight aromatic hydroxy compound, which comprises the steps of: (i) extracting a reaction mixture at least once with aqueou... | 01/14/2003 |
| 6503394 | Digester method and system for processing farm waste A digester method and system for processing farm waste is provided. Specifically, the present invention provides a small-scale digester that processes approximately 0.1% to 10% of a raw waste stream at a temperature of approximately 100° F. The remaining... | 01/07/2003 |
| 6423236 | Method for treating waste water The present invention relates to a method for treating waste water including the steps of: oxidizing the waste water, and then treating the oxidized waste water with a reverse osmosis membrane having high salt rejection rate. By being treated with the rev... | 07/23/2002 |
| 6413426 | Algal and nutrient control system and method for a body of water A system to control nutrients, suspended algae, and filamentous algae in lakes, ponds, and estuaries includes a structure for containing macrophytic vegetation. One embodiment segregates a column of water within a body of water desired for remediation and... | 07/02/2002 |
| 6413433 | Method for dewatering of sludge A process for dewatering of sludge, wherein said sludge comprises solids and water, comprising the steps of: a) adding a cationic dispersion polymer and a microparticle to said sludge, wherein said cationic dispersion polymer can be added before or after or ... | 07/02/2002 |
| 6387281 | Processes and apparatus for treating sewage or like sludge There is disclosed a process for treating sewage or similar organic sludge to produce a pasteurized and dried product comprising the steps of: dividing the sludge into at least one first portion and at least one second portion; drying the first portion so that... | 05/14/2002 |
| 6371690 | Method and apparatus for handling water at low and high feed rates A liquid-handling installation utilizes an upstream and a downstream separator unit, each unit having a horizontal partition defining a treatment compartment below the partition and an overflow compartment above the partition. Each unit has an inlet openi... | 04/16/2002 |
| 6294096 | Water dechlorinating system An apparatus and a method for dechlorinating water being discharged from a chlorinated water supply system. The water flows through a housing interior and impacts a container having openings therein. The container contains dechlorinating tablets and the t... | 09/25/2001 |
| 6254789 | Method for treating aqueous solutions comprising acids and nitrated compounds The invention concerns a method for treating an aqueous solution derived from sluicing of crude mononitrated or dinitrated aromatic compounds obtained by nitration of the corresponding aromatic compounds, consisting in: (a) contacting said aqueous solutio... | 07/03/2001 |
| 6106717 | Method for treating organic waste water A method of treating an organic waste water, which is capable of separating and recovering phosphorus components in a liquid or solid form, is provided. According to the method of the present invention, reuse of phosphorus components can be facilitated, w... | 08/22/2000 |
| 6096806 | Storage stable autodepositable dispersions of epoxy resins and processes therefor and therewith Epoxy resins, particularly those based on bisphenol A, can constitute the principal film forming polymer component of a storage stable autodepositable composition wherein the particle size distribution of all the film forming polymers in the composition s... | 08/01/2000 |
| 6077448 | Oil/grit interceptor An interceptor tank for primary treatment of rainwater runoff which may contain a variety of pollutants. The tank is a multi-chambered device which provides a partial separation of the pollutants contained in the effluent rainwater. A bypass system preven... | 06/20/2000 |
| 6027642 | Mobile portable water disinfection/filtration and hazardous chemical oxidizing system A water purification system which filters particulates from the water and treats organic contaminats with ozone. The incoming contaminated water flow is divided, with half passing through each of two filter and ozone contact systems. Initially, each strea... | 02/22/2000 |
| 6022478 | Device and process for the substance-specific treatment of fluids Device and process for the substance-specific treatment of fluids by means of treatment elements made from porous membranes, arranged in a casing, where the treatment elements have cavities which are closed or open in the direction of the outlet arrangeme... | 02/08/2000 |
| 5993668 | Method for removing metal ions and/or complexes containing metal ions from a solution Metal ions and/or complexes of metal ions are removed from a solution by formation of an insoluble chelated complex of the metal ions and a polymeric precipitating agent. A two-step process of mixing the influent with the precipitating agent is used to in... | 11/30/1999 |
| 5976385 | Pool cleaning and sanitizing apparatus A pool apparatus that simultaneously removes debris from the water and kills bacteria in a portion of the water passing through the pool apparatus with the pool apparatus having an intake head for drawing water and debris from a first region of the pool a... | 11/02/1999 |
| 5958255 | Method and apparatus for filtering a polymeric melt A filtering method and apparatus for continuously filtering a polymeric melt, which includes a plurality of filter chambers which are arranged in a melt flow path parallel to one another. Also, an intermediate filter is arranged parallel to the filter cha... | 09/28/1999 |
| 5942128 | Method for processing metal working fluid A method for processing metalworking fluid disposed in a sump 12 is disclosed and includes the step of collecting metalworking fluid having a greater concentration of tramp oil than the concentration in the sump and flowing a portion of this oil, without ... | 08/24/1999 |
| 5928519 | Method for separating components in well fluids A system for separation of fluids and drill cuttings received from a borehole during an under-balanced drilling procedure. The system is designed to cope with significantly varied pressures and flow rates, particularly in relation to gas content of drill ... | 07/27/1999 |
| 5928523 | Method and apparatus for continuously filtering a polymeric melt utilizing an intermediate filter of reduced surface area during filter cleaning or replacement A filtering method and apparatus for continuously filtering a polymeric melt, which includes a plurality of filter chambers which are arranged in a melt flow path parallel to one another. Also, an intermediate filter is arranged parallel to the filter cha... | 07/27/1999 |
