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| Number | Title | Issue Date |
| 8043496 | System for extracting oil from algae A method and apparatus for extracting oil from algae comprises a disruptor (125) having a plurality of deflectors (220 and 225) against which a mixture of algae and water (100) is forcibly impacted upon the urging of a pump (115). ... | 10/25/2011 |
| 8034234 | Floating skimmer apparatus with up-flow filter The present invention is a storm water filter system for filtering floatable debris and non-floating pollutants from storm water passing through a storm water drain system. The storm water filtering system has a floatable skimmer therein for capturing floatable debr... | 10/11/2011 |
| 7892422 | Pressurized wastewater effluent chlorination system A pressurized wastewater effluent chlorination system including a treatment tank defining a contact chamber and an aeration chamber. The treatment tank receives wastewater effluent. The system includes a pressure vessel within a liquid chlorine storage container pos... | 02/22/2011 |
| 7611624 | Water filtration and recycling for fabrication equipment A filtered grey water recycling system includes a waste water storage tank for receiving waste water from a stone processing system and a filtered grey water supply loop providing filtered grey water to the stone processing system. The filtered grey water loop inclu... | 11/03/2009 |
| 7575675 | Pool cleaner debris bag A pool cleaner debris bag is provided having an open end adapted to receive debris from the pool and a closable end defining at least one discharge passage for the bag. The pool cleaner further comprises a securing apparatus disposed along at least a portion of the ... | 08/18/2009 |
| 7442307 | Method and apparatus for the biological activated sludge treatment of wastewater The equipment has a main reaction (I) and an anterior reactor (II), as well as facilities for feeding in untreated sewage, removing cleaned water and sludge and aerating the wastewater entered into the main reactor, and a mixer (2) situated in the anterior re... | 10/28/2008 |
| 7429319 | Sewage slurry separation system The present invention discloses a sewage slurry separation system adapted to assist in sewer cleaning operations. The sewage slurry separation system is configured for collecting sewage slurry from a sewer line, depositing the sewage slurry in a collection/settling ... | 09/30/2008 |
| 7419591 | Filter cartridge with check valve protection A filter assembly is provided that includes a hood, a drain manifold, a filter disposed between the hood and the drain manifold, a drainage space that is disposed between and in fluid communication with both the filter medium and the drain manifold, a check valve th... | 09/02/2008 |
| 7387722 | Water treatment system An automatic system for treating water, which consists of two treatment tanks adapted to be operated alternately. The tanks are interconnected with each other by a unique isolation valving system that permits one tank to be in use while the other is on standby. They... | 06/17/2008 |
| 7368039 | Distiller employing cyclical evaporation-surface wetting A distillation unit (10) employs a rotary heat exchanger (32) forming a multiplicity of evaporation chambers (56) into which a liquid to be purified is sprayed for evaporation. Spray arms (58) spray at a steady rate into all of the evapor... | 05/06/2008 |
| 7347255 | Device for detecting water in product-only pump flow stream A device for detecting the presence of water in a product-only hydrocarbon pump system particularly used for the removal of subterraneous hydrocarbons from a remediation site through a well. The device comprises a sealed float switch chamber, positioned either upstr... | 03/25/2008 |
| 7347945 | Method 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 |
| 7331472 | Method and apparatus for separation of a mixture of non-miscible liquids A tank has an inlet opening mounted at an end wall at the beginning of an elongated horizontal path for supplying a mixture to be separated, and two outlet openings mounted at the end of the elongated horizontal path for separately draining the separated liquids. An... | 02/19/2008 |
| 7329351 | Process and apparatus for increasing biological activity in waste treatment in bodies of water A process and apparatus for increasing biological activity in waste treatment ponds and lagoons. In this process a floating fluid circulator having an annular space between nested frusto-conical surfaces is operated in a pond or lagoon. An aerator within the scope o... | 02/12/2008 |
| 7309427 | System for treating liquids A system for treating wastewater includes a basin to contain wastewater, an aerator provided in the basin to mix the wastewater, and a cover system to cover a surface of the wastewater contained in the basin. The cover system includes a plurality of hollow bodies di... | 12/18/2007 |
| 7303683 | Microorganism-removing filter medium having high isoelectric material and low melt index binder A filter medium capable of removing microorganisms from a fluid such as water. The filter medium includes particles of activated carbon, particles of a substantially insoluble inorganic material having an isoelectric point greater than the fluid being filtered. A lo... | 12/04/2007 |
| 7300576 | Pool cleaning system and safety skimmer A swimming pool cleaning system includes a pump, a first tube coupling a suction port of the pump in fluid communication with a main drain or mobile cleaning device which draws water and settled debris from the bottom of the pool, and a skimming device including an ... | 11/27/2007 |
| 7276157 | Swimming pool strainer A swimming pool strainer formed of a substantially U-shaped housing including an end panel with a pair of spaced side panels perpendicularly extending therefrom. Positioned between the side panels are a plurality of spacer dowels that enhance the structural integrit... | 10/02/2007 |
| 7276154 | Settling grid separator A settling grid separator apparatus and method of use which provides deep dehydration of high flow rate sludge in an environmentally friendly and energy efficient manner. The apparatus and method comprise and utilize an efficient mixing of the sludge with a floccula... | 10/02/2007 |
| 7267235 | Greywater recycling apparatus The invention provides a unitary device for converting an open-top container into a greywater recycling apparatus comprising a vessel lid having a submersible float switch-operated pump depending therefrom by extension means sized to enable the positioning of the pu... | 09/11/2007 |
| 7264747 | Coated microbubbles for treating an aquifer or soil formations A microporous diffuser includes a first elongated member including at least one sidewall having a plurality of microscopic openings. The sidewall defines an interior hollow portion of the member. The diffuser has a second elongated member having a second sidewall ha... | 09/04/2007 |
| 7238279 | Impulse-responsive rotary actuator for storm drain barrier not disabled by immersion A pivoted gate across an opening from a gutter into a collector basin. An actuator inside the basin is insensitive to slow flow rates, but includes a rotor with vanes that actuate an opening linkage at sufficiently high rates of flow. A float is included in the actu... | 07/03/2007 |
| 7223346 | Methods and apparatus for isolating platelets from blood A platelet collection device comprising a centrifugal spin-separator container with a cavity having a longitudinal inner surface. A float in the cavity has a base, a platelet collection surface above the base, an outer surface. The float density is below the density... | 05/29/2007 |
| 7214311 | Filter cartridge with check valve protection A filter assembly is provided that includes a hood, a drain manifold, a filter disposed between the hood and the drain manifold, a drainage space that is disposed between and in fluid communication with both the filter medium and the drain manifold, a check valve th... | 05/08/2007 |
| 7201153 | Fuel injection system for an internal combustion engine Method and arrangement for providing a fuel system for an internal combustion engine (10) that includes a fuel tank (13), a fuel pump (12) and a fuel filter (19) located in a flow duct (14) between the fuel pump and the fuel consum... | 04/10/2007 |
| 7186330 | Disinfectant system for use with residential aerobic wastewater treatment plants A system for introducing a liquid disinfectant into treated wastewater comprising a source of liquid disinfectant, a sensor to detect flow of treated wastewater from a wastewater treatment system, a pump to introduce the liquid disinfectant into the treated wastewat... | 03/06/2007 |
| 7175756 | Device for treating working fluid for electric discharge machining The device for treating working fluid includes a fluid level detecting device for detecting a fluid level of cleaned fluid in a cleaned fluid tank, and a control unit for determining an adjustment value for a discharge rate command for a filter device pump, based on... | 02/13/2007 |
| 7144501 | Skimmer construction A decorative pond which includes a pond area, a water feature for discharging water into the pond and a skimmer construction for receiving pond water, separating debris from the pond water and recirculating filtered water to the water feature. The skimmer constructi... | 12/05/2006 |
| 7125200 | Flow control system for a holding pond An apparatus for controlling the fluid flow rate from a drainage pond that is common in developed sites where the drainage pond is adapted to supply a degree of fluid capacitance so the runoff does not overflow downstream creek beds and the like. The method and appa... | 10/24/2006 |
| 7118521 | Centrifugal separator with conical pump inlet A centrifugal separator has a centrifugal rotor that is rotatable about a vertical axis and has both a rotor body for separation of two liquids, having different densities, and a pumping member that is designed to pump via the outside of a conical body a mixture of ... | 10/10/2006 |
| 7077967 | Poultry processing water recovery and re-use process The inventions of the present disclosure are directed to processes designed to recover water used in certain aspects of the processing of poultry, treat the recovered water to remove solids, fats, oils and greases, animal proteins and pathogenic organisms and to reu... | 07/18/2006 |
| 7066024 | Float adapted to track an interface between two liquids of differing density A float adapted to track an interface between two liquids of differing density, includes a hollow buoyant body having an interior cavity adapted to retain liquid. At least one upper access opening is provided in the body, which is adapted to permit filling of the in... | 06/27/2006 |
| 7041213 | Stormwater pretreatment and disposal system A stormwater drainage system capable of collecting, pretreating and disposing of the stormwater runoff into a dry well. Further capable of stopping the flow of stormwater into the dry well in the event hydrocarbons or other contaminants are present in the stormwater... | 05/09/2006 |
| 7025076 | Rainwater recovery system A system and method for restoring the natural water cycle by reducing stormwater runoff and addressing issues affecting groundwater supply. In one embodiment of the invention, the system comprises a roof washer component, cistern component, pump, and manufactured dr... | 04/11/2006 |
| 7018529 | System for producing ultrapure water The ultrapure water producing system produces ultrapure water with high purity and remarkably low content of metals even just after restart of operation thereof. Water sent through the pump 3 or 4 into a line 8 flows through a heat exchanger ... | 03/28/2006 |
| 7011757 | Process for recycling mixed liquor with dual-use jet recirculation pumps to provide highly efficient wastewater treatment A process that removes nitrogen by the MLE Process or nitrogen and phosphorus by the Bio-P Process from municipal or industrial wastewaters by combining at least one dual-use jet recirculation pump with jet manifolds disposed at the bottoms of deep tanks functioning... | 03/14/2006 |
| 6979401 | Pond skimmer apparatus There is provided herein a skimmer apparatus for use in ornamental ponds and the like. According to a preferred embodiment there is provided a skimmer that has a submersible pump directly connected thereto and which is designed to sit within the pond itself, e.g., i... | 12/27/2005 |
| 6974540 | Street curb drain filter A street curb drain filter is comprised of U-shaped brackets for attaching to an inside wall of a street curb drain adjacent an inlet. A horizontal retaining bar is attached to the outer ends of the brackets. The lower edge of a horizontally elongated flexible net i... | 12/13/2005 |
| 6969459 | Processing apparatus and an operating method thereof A processing apparatus and an operating method of the processing apparatus, in which a water insoluble oil homogeneous to a water insoluble oil (processing oil) used for a mist-lubrication in a processing site on a work is used as a lubricating oil for a lubrication... | 11/29/2005 |
| 6953523 | Portable, refillable water dispenser serving batches of water purified of organic and inorganic pollutants A portable, refillable water dispenser serving batches of water purified of organic and inorganic pollutants includes a portable, refillable and hand-holdable vessel for holding and pouring water having a spout and, inside the portable, refillable and hand-holdable ... | 10/11/2005 |
