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| Number | Title | Issue Date |
| 7341660 | Unitary three stage wastewater treatment system The invention is a three stage wastewater treatment system having a first tank, a second tank and a third tank, all in fluid communication and forming a unitary structure. The first and second tanks are nested, where the first tank is the innermost tank. The first t... | 03/11/2008 |
| 7300575 | Portable filter system A filter system for receiving an aqueous-based fluid contaminated with particles and emulsified contaminant oil, removing the particles, and separating the emulsified contaminant oil from the aqueous-based fluid includes a filter media for receiving the aqueous-base... | 11/27/2007 |
| 7192519 | Devices and methods for localized heating A device for heating a workpiece located in a primary direction of heating relative to the device, the device comprising a heating element, and a thermal shield adjacent the heating element for inhibiting heat conduction and radiation from the heating element to the... | 03/20/2007 |
| 7048852 | Method and apparatus for treating water or wastewater to reduce organic and hardness contamination A method of treating liquid including mixing coagulant with the liquid, introducing mixed coagulant and liquid into a primary reaction zone, containing an agitator, of a reactor which is substantially concentrically positioned with respect to a secondary reaction zo... | 05/23/2006 |
| 7029587 | Water purification An apparatus for decontaminating water in an ice machine or a beverage-dispensing machine comprising an ultraviolet radiation source, an ozone source and a controller. As potable water enters the apparatus via a conduit, the potable water is decontaminated by an ult... | 04/18/2006 |
| 7014781 | Methods and articles for maintaining hydantoinylated polymers in a biocidally active state A composition and the method for sustaining the biocidal activity of chlorinated polystyrene hydantoin beads. The method comprises supplying a continuous low level halogen concentration to the chlorinated polystyrene hydantoin beads in the water to be treated that f... | 03/21/2006 |
| 6762057 | Separation apparatus including porous silicon column A sample separation apparatus including a porous, or rough, capillary column. The porous capillary column includes a matrix which defines pores, and may be formed from a material such as porous silicon. Alternatively, the capillary column may have a rough surface of... | 07/13/2004 |
| 6596180 | System and method for the production of autologous platelet gel A centrifuge system for the formation of an autologous platelet gel wherein all of the blood components for the gel are derived from a patient to whom the gel is to be applied. First a platelet rich plasma and a platelet poor plasma are formed by centrifu... | 07/22/2003 |
| 6503400 | Phosphate stabilizing compositions This invention relates to phosphate stabilizing compositions comprising (a) polyaspartic acid, and (b) an anionic carboxylic polymer. The compositions effectively stabilize phosphates by inhibiting the formation of calcium phosphate scale. The invention a... | 01/07/2003 |
| 6489132 | Methods and apparatus for determining specific analytes in foods and other complex matrices Methods and apparatus for qualitatively or quantitatively determining one or more analytes in matrices such as foods, biological fluids, etc. An embodiment for determination of a single analyte comprises a sample receiving vessel, a first membrane and a r... | 12/03/2002 |
| 6485652 | Process for physico-chemical treatment of water and installation for embodiment of this process The invention concerns a method for the physico-chemical treatment of water characterized in that it comprises at least a step consisting in causing the water to be treated in at least one settler providing non-thickened sludge and in at least one settler... | 11/26/2002 |
| 6183692 | Kit for purification of plasmin A method for rapid purification of a blood component from blood is described in which the blood plasma is first separated from the cellular blood elements by any conventional means, such as centrifugation. An affinity cartridge is then activated with a mo... | 02/06/2001 |
| 5993663 | Liquid filtering system in machine tools A liquid filtering system in machine tools which uses, in a recycling circuit, a work tank, a dirty liquid tank, a filter and a clean liquid tank in which water of a very low conductivity is used and adding at least one ferric oxide flocculent based on a ... | 11/30/1999 |
| 5587070 | System for processing biological fluid A system for collecting and processing donated blood comprises a first porous medium interposed between a blood collection bag and a satellite bag and a second porous medium interposed between the blood collection bag and another satellite bag. The porous... | 12/24/1996 |
| 5422019 | Method for removing contaminants from industrial cleaning systems Water-based industrial cleaning solutions are stripped of mixed oil and high density particulate (dirt) contamination by a full or partial flow system through, first, a centrifugal separator to produce two effluent flow streams respective to low and high ... | 06/06/1995 |
| 5308490 | Sewage delivery for an activated sludge process A plant suitable, in particular, for denitrifying sewage purification by the activated sludge process comprises several tanks which are charged with untreated water via a common delivery conduit which is preferably designed as a ring main. This delivery c... | 05/03/1994 |
| 5192428 | Portable system for treating human waste A new portable system is disclosed for composting feces and for treating urine includes a composting retainer which includes a composting means for exposing the feces to sufficient air and water to allow the feces to compost, thereby forming a compost pro... | 03/09/1993 |
| 5110465 | Compact waste water treatment facility A compact waste treatment facility comprises an optional surge basin, an aeration basin, a settling basin, and a digester basin. The basins are interconnected in the order named for therewith providing a sequentially arranged waste treatment facility. Eac... | 05/05/1992 |
| 5076916 | Device for separating fluid from a fiber following contact A device for separating a moving fiber from processing fluid is disclosed and claimed. A chamber defining hydrophilic and hydrophobic flow paths respectively is exemplified. The device is placed so that substantially all water associated with processing e... | 12/31/1991 |
| 5066392 | Apparatus for microbiological decomposition of organic waste A process and apparatus for microbiological degradation of wastes and for the separation and degradation of organic impurities from waste gases. For the degradation of organic wastes, the individual charges are divided into part charges and alternately ar... | 11/19/1991 |
| 5039404 | Oxygen permeable membrane used in wastewater treatment An apparatus for use in the biological treatment of contaminated water with activated sludge utilizing a sequencing batch reactor process, fixed film media reactor or the like and, in particular, for supplying oxygen rich gas to the proces. Air is located... | 08/13/1991 |
| 4840731 | Apparaus for reduction of COD in water A method and apparatus for reducing chemical oxygen demand levels in water which includes the steps of: (a) mixing the water to be treated with at least one oxygen source; (b) contacting the water with a first, activated alumina catalyst; (c) contacting the water w... | 06/20/1989 |
| 4781826 | Apparatus for decontaminating PCB-contaminated dielectric fluids A mobile apparatus for chemically decontaminating PCB-contaminated dielectric fluids utilizes three reactors through which the contaminated fluid is processed on a repetitive, sequential batch basis automated by a programmable controller. The processing o... | 11/01/1988 |
| 4687576 | Current propelled waste water treatment mechanism In a sewage treatment system having a series of generally concentric, ring-like treatment tanks, a siphoning head used to withdraw sludge from the bottom of the clarifying tank is propelled slowly and smoothly through its tank by the moving current of sew... | 08/18/1987 |
| 4282097 | Dynamic oil surface coalescer Apparatus and method for separating and removing oil and particulate solids from a dispersion of oil and particulate solids in water or a water-based liquid. During separation, the dispersion is fed under pressure into the inlet end of a plurality of upri... | 08/04/1981 |
| 4120792 | Combined filter and incinerator An enclosure having an inlet and an outlet for hot air, and an inlet and an outlet for waste water, contains a plurality of refractory, porous, tubular, membrane-type filters, each of which is closed at one end and connected at its other end to the waste ... | 10/17/1978 |
| 4033868 | Method and apparatus for processing contaminated wash water Contaminated wash water in nuclear plants are processed by mixing the wash waters with ion exchange resins to form a suspension and then feeding the resulting suspension to a filter.... | 07/05/1977 |
| 4018568 | Fume absorbing-treating system For purposes of maintaining equipment in enclosures which generate noxious fumes, such as in connection with the handling of sewage in a lift station, there must be adequate venting means to permit entry of workmen into the enclosure without the need of g... | 04/19/1977 |
