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| Number | Title | Issue Date |
| 8080164 | Environmentally-neutral processing with condensed phase cryogenic fluids Systems, methods and apparatus are provided for utilizing a substantially condensed phase cryogenic fluid for the purpose of remediation and retrieval of, e.g., spilled crude oil and other “oil spill”-related products from marine/aquatic and terrestrial environm... | 12/20/2011 |
| 7910007 | Treatment method of waste liquid and treatment apparatus It is an object of the present invention, in performing cooling treatment of a waste liquid, to provide a mechanism which safely treats the waste liquid by cooling, without increasing cost and without providing large equipment. A treatment method of a waste liquid i... | 03/22/2011 |
| 7857980 | Plant for filtering substances Plant for filtering substances to be cleaned of various kinds of semi-solid or liquid polluting substances, constituted by filtering devices (5) connected to each other, including a first circulation circuit of the substances to be cleaned introduced into eac... | 12/28/2010 |
| 7658856 | Environmentally-neutral processing with condensed phase cryogenic fluids Systems, methods and apparatus are provided for utilizing a substantially condensed phase cryogenic fluid for the purpose of remediation and retrieval of, e.g., spilled crude oil and other “oil spill”-related products from marine/aquatic and terrestrial environm... | 02/09/2010 |
| 7422687 | Biotreatment of As-containing hydroxide sludge The invention discloses a biotechnological process for the treatment of hydroxide sludge containing As produced in potable water production processes which use FeCI3 as a coagulant. The process seeks to modify the physicochemical properties of the produce... | 09/09/2008 |
| 7371319 | Production of water for injection using reverse osmosis A method and system for providing Water for Injection using reverse osmosis. Water for Injection can be produced by reverse osmosis and the reverse osmosis membrane can be kept in a constantly self-sanitizing condition. One way of obtaining a constantly self-sanitiz... | 05/13/2008 |
| 7338426 | Centrifugal separator with rotation detector A centrifugal separator for separating dirt particles from a fluid includes a separator cylinder, which rotates in a separator housing and into which the fluid to be cleaned is introduced. A detection device for indicating the operating state of the separator cylind... | 03/04/2008 |
| 7335333 | Method of altering a fluid-borne contaminant An improved method of altering a fluid-borne contaminant includes the steps of: providing a positive-displacement pump (21) having an inlet (22) and an outlet (23); connecting the pump inlet to a source (24) of contaminated fluid; operati... | 02/26/2008 |
| 7332095 | Wet oxidation An oxidation process is described which involves subjecting a feedstock which contains oxidizable material to temperature, pressure and contact with an oxidant. Excess water and volatile oxidation products, such as carbon dioxide, formic acid and acetic acid, are re... | 02/19/2008 |
| 7314572 | Methods of and apparatus for low-angle-tray settling with multi-zone configuration Settleable-particles are separated from a dirty flow of settleable-particles and fluid by trays having a planar section configured with opposed ends and opposed sides, and an entrance edge and an exit edge on opposed ends. The section has opposed side edges, and an ... | 01/01/2008 |
| 7273561 | Method for determining the chemical dosage required to reduce sulfides in wastewater to acceptable levels An apparatus and method of determining chemical dosage required to reduce sulfides in wastewater includes providing a headspace apart from the wastewater. The temperature of the wastewater and the concentration of sulfide gas in the headspace are measured. Dissolved... | 09/25/2007 |
| 7270179 | Method for stimulation of liquid flow in a well An improved method of controlled energy delivery utilizing solid, liquid, and gaseous carbon dioxide (CO2) into a water well and the surrounding aquifer to remove deposited material which may cause loss of capacity in wells and a variety of water quality ... | 09/18/2007 |
| 7255797 | Composition including potassium monopersulfate and a halogen A product including potassium monopersulfate and a halogen is presented. The product is useful for treatment of aquatic facilities such as swimming pools. While it was known that using a combination of potassium monopersulfate and halogen is effective for sanitizing... | 08/14/2007 |
| 7252801 | Method for controlling in cooling towers A method of controlling Legionella bacteria in cooling water systems is described. The method involves the heating of recirculating cooling water to temperatures of 70° C. for sufficient time to kill the bacteria. The method functions best in combination wit... | 08/07/2007 |
| 7248955 | Vehicle accessory proximity sensor slide switch A method is provided for operating a proximity sensing unit for controlling an accessory device of a vehicle. A plurality of proximity sensors is disposed in a sequential pattern within a sensing unit whereby the proximity sensors are responsive to a manual activati... | 07/24/2007 |
| 7247243 | Method and device for detecting an accumulation of sand in a separator vessel A separator device including a vessel for separating water from oil. The separator device is provided with a measurer for measuring the temperature of the wall of the vessel. ... | 07/24/2007 |
| 7244353 | Method of and system for fluid purification A method of and system for purifying fluid of an internal combustion engine or hydraulic system utilizes an evaporation chamber separate from a filtering chamber. A metering valve may be oriented between the filtering chamber and the evaporation chamber to control t... | 07/17/2007 |
| 7211229 | Method and apparatus for the sterilization of biological waste Continuous biowaste sterilization process, the operability of which is ensured in such a way that during process startup, extreme conditions possibly coming into question during operation are simulated, i.e. the greatest possible flow rate and the lowest temperature... | 05/01/2007 |
| 7208117 | Automated process for inhibiting corrosion in an inactive boiler containing an aqueous system This invention relates to an automated process to inhibit corrosion of the metal surface of an inactive boiler containing water. ... | 04/24/2007 |
| 7179388 | Method for removing formic acid from aqueous solutions Formic acid is at least partly removed from an aqueous solution comprising formic acid, cyclohexanone and cyclohexanol by decomposition over certain decomposition catalysts. The method is preferably used for processing reaction products from the oxidation of ... | 02/20/2007 |
| 7135115 | Membrane bioreactor waste water treatment method A method for treating waste water uses a membrane bioreactor that produces excess biological sludge and treated water components. This is achieved by extracting the biological sludge from the bioreactor then causing contact between the biological sludge and dewatere... | 11/14/2006 |
| 7101475 | Autonomously navigating solar swimming pool skimmer An autonomously navigating solar swimming pool skimmer employing a forward impeller, navigation being improved by the use of forward mounted powered horizontal bumper wheels as deflectors, combined with occasional reversals of paddlewheels and bumper wheels to clear... | 09/05/2006 |
| 7094353 | Method of water treatment The invention relates to a method of treatment of bodies of water such as recreational pools, spas and hot tubs with maintenance doses of water treatment chemicals to achieve consistent sanitization and aesthetically pleasing levels of properties such as turbidity. ... | 08/22/2006 |
| 7083728 | Method for treating sludge using recycle A method and system for treating at least bioorganic, organic, wastewater, and sewage sludge using recycle. The method of producing a treated sludge product comprises the following steps: (a) forming a sludge mixture by mixing untreated sludge with at least one alka... | 08/01/2006 |
| 7076303 | Apparatus and method for automated invoicing of medical device systems A system and method for remote invoicing and inventory control of medical components of an implantable medical device system upon implantation into a patient is described. The system includes at least one medical component implanted in a patient. A programmer is cap... | 07/11/2006 |
| 7070693 | Process for treating septage A process and apparatus for the treatment of septage, particularly grease trap waste, is disclosed. The inventive process will convert the septage into Biosolids (sludge) and water dischargeable to the environment. The treated septage achieves pathogen reduction, an... | 07/04/2006 |
| 7052599 | Method 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 |
| 7040490 | Filter A filter having filter openings, which openings vary in cross-section automatically in accordance with an inherent variable of the medium passing there through. The openings can vary in response to the heat of the medium passing through the openings. The openings ca... | 05/09/2006 |
| 7040161 | Parts washer with improved temperature and pump control A parts washer including a receptacle positioned on a reservoir for cleaning liquid having a drain opening and a module which engages a portion of the reservoir in the cleaning liquid for adjusting the temperature of the cleaning liquid and circulating the cleaning ... | 05/09/2006 |
| 7033501 | Centrifuge apparatus and method with improved temperature control An apparatus is adapted to centrifuge a container for separating a component, such as fibrin monomer, from blood or plasma. The container includes a cylindrical member, and a piston displaceable therein and a tubular piston rod, which extends through a top wall of t... | 04/25/2006 |
| 6994784 | Liquid filter/heat exchanger unit A liquid filter/heat exchanger unit including a liquid filter and a heat exchanger, the liquid filter having a filter element in a filter housing. To bypass the heat exchanger, there is a bypass connecting the heat exchanger inlet directly to the unfiltered side of ... | 02/07/2006 |
| 6978741 | Apparatus and method for measuring total dissolved solids in a steam boiler A method and apparatus for controlling the operation of a pressurized steam boiler heated by a burner. The method includes the steps of monitoring the level of total dissolved solids in water contained in the boiler, monitoring the level of water in the boiler, moni... | 12/27/2005 |
| 6979403 | Grease interceptor (trap) and servicing method A grease trap and management tank is disclosed herein. The trap has two compartments, a forward and rear compartment separated by two baffles so that grease and oils may rise and solids and sludge settle out and not be introduced into a sewer line. An ultra sonic mo... | 12/27/2005 |
| 6966989 | Method and installation for the thermal hydrolysis of sludge The invention relates to a method for the thermal hydrolysis of sludge characterized in that it is carried out in at least two reactors operating in parallel, in each of which the sludge undergoes a complete thermal hydrolysis cycle. Said cycle comprises different s... | 11/22/2005 |
| 6965815 | Spa control system An improved spa control system is disclosed. The invention describes a spa control system which calculates the time required to heat the water in the spa system to a desired temperature. From that information, the heating rate of the spa system can be determined, an... | 11/15/2005 |
| 6962660 | Fluid filter system with secondary flow path for augmented filtration A filter system for spas and swimming pools is disclosed having a primary filter containing a porous membrane made of multiple plies. A fluid purifying medium in the form of irregularly shaped copper and zinc alloy particles is captured between the plies and placed ... | 11/08/2005 |
| 6960321 | Sterilization of fire sprinkler systems New and in-use fire sprinkler systems can be sterilized by employing antimicrobial gases. The gases include steam, oxygen, and chlorine. Water added to the system after sterilization can be sterilized to prevent the reoccurrence of microbiological contamination.... | 11/01/2005 |
| 6951615 | Grease removal system A grease removal system includes a solid interceptor fluidly coupled to a grease trap tank, which is fluidly coupled to a secondary tank. The secondary tank contains an enzyme solution which biodegrades the grease. The grease removal system may also include a solid ... | 10/04/2005 |
| 6929744 | Sludge treatment at a mesophilic temperature A method of treating sewage sludge comprises incubating raw sludge at a temperature in the mesophilic range to reduce the pathogen content of the sludge. ... | 08/16/2005 |
| 6928108 | Modem with firmware upgrade feature Updated operating code and parameters can be reprogrammed into a modem system with no disassembly of the modem hardware. The modem system includes a memory chip in which operating code and parameters are stored. Two control programs control the reprogramming of upda... | 08/09/2005 |
