Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 8114298 | Method, device and system for water treatment A device, system and method are provided for treating water, in which a water treating agent is prepared and dispensed to an untreated drinking water source in discrete and consecutive control volumes enabling untreated water in the untreated water source to be trea... | 02/14/2012 |
| 8075785 | Separation vessel for solids removal A separation device for removing solids from an input stream is provided, comprising a vessel, such as a production vessel or storage tank, having an inlet for receiving an input stream containing fluids, such as oil and water, and solids, such as sand and silt. The... | 12/13/2011 |
| 8057685 | Solid separator A solid separator that uses a rotating screen, having spiral guides at its outer portion, over which a plurality of spiral-shaped scrapers are suspended. An inlet distributor including a plurality of apertures distributes a contaminated liquid flow over the screen, ... | 11/15/2011 |
| 8038889 | Cleaning device A screen cleaning apparatus for use, for example, in connection with a discharge conduit of a sewage pumping station, may include a housing, a screen, a rake and a float. The housing may operate to contain a fluid (and/or define a container for the other components)... | 10/18/2011 |
| 7854850 | Screen blockage measurement and flow performance optimization system An apparatus and method are provided that enable the control of a screening operation based on a calculated screen blockage percentage and the velocity throughput of the screen. The apparatus includes an upstream level detector, a downstream level detector and a flo... | 12/21/2010 |
| 7854849 | Compact multiphase inline bulk water separation method and system for hydrocarbon production A method and apparatus for inline, controlled water separation from a multiphase hydrocarbon production stream. The method includes the steps of directing the multiphase hydrocarbon production stream to a gas/liquid separator in order to separate into a gas stream a... | 12/21/2010 |
| 7846340 | Water treatment system and method A water treatment system provides treated or softened water to a point of use by removing a portion of any hardness-causing species contained in water from a point of entry coming from a water source, such as municipal water, well water, brackish water and water con... | 12/07/2010 |
| 7824554 | Automated apparatus and process for the controlled shutdown and start-up for a wastewater treatment system An apparatus and method for cleaning and shutting down a part-time wastewater treatment system is disclosed. The wastewater treatment system has a water input to receive an influent flow of wastewater to be treated, a water output to discharge treated clean water ef... | 11/02/2010 |
| 7704400 | Method and apparatus for washing particulate matter A system for washing contaminated sand comprises a plurality of reactors arranged in a sequence from a first to a last reactor. The first reactor is configured to receive contaminated sand. Each reactor comprises a funnel portion in a lower section thereof for accum... | 04/27/2010 |
| 7691272 | Method of effecting efficient flow equalization A method of effecting efficient flow equalization in a settling and retention basin having a peripheral wall housing a removable design flow equalization port and a filter member exteriorly of the peripheral wall by (a) observing the height of liquid level induced d... | 04/06/2010 |
| 7611635 | System and method for separating a fluid stream A system (1) for separating a fluid stream (2) comprising gas, a light liquid and a heavy liquid, the system comprising a separation vessel (5) that is arranged to define a downwardly extending separation space and comprises a downwardly sloping... | 11/03/2009 |
| 7479231 | Method and apparatus for separating fluids having different densities A method and apparatus for separating mixtures of fluids having different densities. According to one aspect of the invention, a lower density fluid is separated from a higher density fluid. A mixture of the two fluids is received in a tank. A centrifugation of the ... | 01/20/2009 |
| 7442294 | Blood dialyzer A hemodialysis apparatus that carries out hemodialysis treatment by measuring or calculating the blood volume or its volume change as a blood indication level, and by controlling dialysis conditions according to said target blood indication level, wherein the chrono... | 10/28/2008 |
| 7416670 | Dual-cell mechanical flotation system with intermittent skimming It has been discovered that a mechanical flotation system (10) having only two cells (18, 20) can be nearly as efficient as one having more cells, yet provide an apparatus with a considerably smaller footprint, significantly reduced capital and operati... | 08/26/2008 |
| 7370705 | Multiple zone downhole intelligent flow control valve system and method for controlling commingling of flows from multiple zones A production control system having a series of nested tubular members including at least one axial flow channel and at least two annular flow channels. At least one valve configured and positioned to control flow from each flow channel is provided. A producti... | 05/13/2008 |
| 7370701 | Wellbore completion design to naturally separate water and solids from oil and gas A wellbore completion design is provided, which creates a convective flow action that separates water and sand from hydrocarbons during production of the hydrocarbons from a subterranean formation. A deviated section of the wellbore creates the desired effect. The w... | 05/13/2008 |
| 7368055 | Structural improvement for a water purifier A structure improvement for a water purifier includes a streamlined main body combined by a pair of the symmetrically arranged half housings each of which has a large opening closed by a lid, a motor unit, a pipeline and a flat rectangular rack disposed inside the m... | 05/06/2008 |
| 7367459 | Passive grease trap using separator technology A grease trap for separating grease and solid waste from waste water. The grease trap includes a tank having a downwardly shaped bottom. An upwardly shaped divider divides the tank into an upper chamber and a lower chamber. A hole near an upper part of the divider a... | 05/06/2008 |
| 7368060 | Apparatuses and methods for detecting contaminant in a fuel system Apparatuses and methods are provided for detecting contaminant in a fuel system, such as a fuel system of an internal combustion engine. The apparatus includes a fuel filter comprising an upper unit having a fuel inlet port, a fuel outlet port, and a closeable vent ... | 05/06/2008 |
| 7364661 | Method and device for separating a mixture of fluids A mixture of fluids is separated into at least two phases, one of which has a higher density than the other, passing the mixture through a normally horizontal supply pipe, by creating a stratified flow in the supply pipe, by passing the mixture through an inclined p... | 04/29/2008 |
| 7351385 | System for enabling landfill disposal of kitchen waste oil/grease An apparatus for conversion of kitchen waste grease to a landfill-acceptable solid includes a grease collection cartridge. A mixing baffle within the cartridge has a package with a reactant to convert grease and oil, and water into soap. The apparatus has means for ... | 04/01/2008 |
| 7347933 | Self-cleaning intake screen A self-cleaning screen that automatically cleans both the inside and outside surfaces of the cylindrical screen using only the rotation of the cylindrical screen itself. This self-cleaning ability is accomplished by using a fixed brush on the exterior surface of the... | 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 |
| 7338606 | Arrangement and method for maintaining a minimum flow velocity in the coolant return of a machine tool coolant filtration system An arrangement and method for maintaining a minimum flow velocity in return piping receiving dirty coolant from a plurality of machine tools receiving filtered coolant from a filter apparatus. A bypass line diverts clean coolant into the return piping via a pressure... | 03/04/2008 |
| 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 |
| 7328809 | Solvent extraction method and apparatus A weir assembly for use with a mixer-settler for liquid-liquid extraction includes in one embodiment an organic weir having an inlet opening below the free surface of the organic phase liquid and a vertically-adjustable front wall allowing adjustments in the positio... | 02/12/2008 |
| 7326338 | Low cost oil/grease separator A container for receiving and holding effluent water containing oil/grease to be removed has sectional covers. A main sectional cover supports a partially immersed rotatable disk; a drive on the main sectional cover rotates the disk; a trough on the main sectional c... | 02/05/2008 |
| 7322283 | Apparatus in an infuser for a liquid food product The invention relates to an apparatus in an infuser for a liquid food product. The infuser is of the type which includes a pressure vessel (1) with an inlet (2) for the product located in its upper region and an outlet (6) for the product locate... | 01/29/2008 |
| 7320364 | Inhibiting reflux in a heated well of an in situ conversion system Certain embodiments provide a method for treating a subsurface formation. The method includes using heaters to form a heated portion of the subsurface formation. A production conduit is used to direct formation fluid in a vapor phase from the heated portion of the s... | 01/22/2008 |
| 7314509 | Gas liquid phase separator with improved pressure control A gas/liquid phase separator includes a fluid inlet, a vapor outlet, a liquid outlet, and first and second valves disposed in fluid communication with the liquid outlet. Both valves are controllable in response to a fluid level in the gas/liquid phase separator. Bot... | 01/01/2008 |
| 7314546 | Disinfectant system and method for the chemical treatment of wastewater A system for the chemical treatment of wastewater may be discharged in a night spray system, an on demand system or a dosing system. Tank 12 receives wastewater, and a discharge pump 16 pumps wastewater from the tank in the night spray system. A sensor... | 01/01/2008 |
| 7311839 | Removal of biological pathogens using surfactant-modified zeolite Systems and methods are described for removing biological pathogens using surfactant-modified zeolite (SMZ). A method for removing biological pathogens from a fluid or a fluid-based gel includes filtering the fluid or fluid-based gel using SMZs. A method for removin... | 12/25/2007 |
| 7303667 | Blood dialysis apparatus having convenient controlling unit A hemodialysis apparatus that carries out hemodialysis treatment by controlling dialysis conditions, wherein the hemodialysis treatment is carried out under dialysis conditions determined by defining the course of said chronological target blood indication level as ... | 12/04/2007 |
| 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 |
| 7273560 | Apparatus for condensing and recycling stripper An apparatus for recycling the stripper solutions with higher recycling rate is disclosed. The apparatus includes a stripper condenser; a first buffer tank; a second buffer tank connecting to said stripper condenser by a first pipe and connecting to said first buffe... | 09/25/2007 |
| 7272947 | Water producing method and apparatus A water producing system adapted to condense water from the air and collected in a storage tank were the water is purified and bacteria is killed. One form of killing the bacteria is utilizing an ozone injection system with a filter system to remove the ozone before... | 09/25/2007 |
| 7270755 | Liquid filtration method embodying superbuoyant filtration particles Presented is a liquid filtering apparatus and method that overcomes the disadvantages encountered with prior bed filtration systems by providing a filtering apparatus that incorporates a super-buoyant filter medium having a specific gravity very substantially lower ... | 09/18/2007 |
| 7264006 | Ozonated water flow and concentration control apparatus and method The invention features an apparatus and a method for supplying ozonated water to more than one process tool. Ozonated water of a first concentration received from an ozonated water generator and water received from a source are mixed to produce ozonated water of a s... | 09/04/2007 |
| 7264678 | Process for cleaning a surface A process is described wherein a surface, for example the exterior surface of a vehicle, is contacted with a cleaning composition capable of rendering the surface treated hydrophilic and then rinsed with purified rinse water. Preferably the process also involves a p... | 09/04/2007 |
| 7258798 | Potable water treatment plant and method of maintaining same A package plant for treating raw water to yield potable water. The package plant includes an inlet for raw water, followed by an ozonator for disinfecting the water. Next is provided an up flow roughing filter including a chemically active layer, on top. A slow sand... | 08/21/2007 |
