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| Number | Title | Issue Date |
| 8187471 | Pressure regulator and filter for irrigation systems A method of operating an irrigation system includes providing a flow of irrigation water, forming a flow of filtered water by removing particulate matter from the flow of irrigation water by using a filter, and directing a first portion of the flow of filtered water... | 05/29/2012 |
| RE43350 | Microporous diffusion apparatus Apparatuses for removal of volatile organic compounds in a soil formation include a microporous diffuser for injecting air and gaseous ozone as bubbles into water in the soil formation. The gaseous ozone is present at concentrations to effect removal of volatile org... | 05/08/2012 |
| 8168071 | Process and apparatus for treating a heavy hydrocarbon feedstock An apparatus and process for treating a heavy hydrocarbon feedstock having a specific gravity differential between components of the feedstock is disclosed. The apparatus includes a treatment vessel having an inlet for receiving the feedstock. The apparatus also inc... | 05/01/2012 |
| 8153012 | Device and method for filtering a fluid, in particular for plastics processing plants The invention relates to a device for filtering a fluid, in particular a liquefied plastic, with a housing with backflush channel and screen carrier and filter element whereby, in order to accelerate and improve the backflush effect, one or more displacement cylinde... | 04/10/2012 |
| 8133397 | Displacement filter method A method and apparatus for filtering a slurry utilizing a displacement filtering principle. The filter apparatus desirably includes an inner filter and an outer filter. Both the inner and outer filters are preferably substantially annular in shape and positioned con... | 03/13/2012 |
| 8110114 | Multiple filter controller and method of use A method for maintaining an efficiently working fuel system comprising: passing the fuel through a first filter of a multiple filter controller; monitoring a level of pressure established within the multiple filter controller as the fuel passes through the first fil... | 02/07/2012 |
| 8070963 | Method and system for backwashing a filter A method for purifying fluids and a sedimentation tank, the sedimentation tank includes: a perforated plate spaced from an upper and of the sedimentation tank dividing the sedimentation tank into an upper chamber and a lower chamber; an inlet adapted to inlet fluid ... | 12/06/2011 |
| 7988868 | Method and device for dewatering and drying solid or liquid mixtures A method is provided for both dewatering and drying solid-liquid mixtures and a device is provided designed as a filter press drier for the application of the method. The filter press drier is equipped with a defined number of metal heating chamber filter plates ( | 08/02/2011 |
| 7922914 | Methods and systems for monitoring characteristics in a fluid flow path having a filter for filtering fluid in the path Methods and systems are provided for measuring pressure drop through a filter in the flow path and then using the measured pressure drop, possibly at a normalized state and in conjunction with time and/or other data from the system, to estimate characteristics of th... | 04/12/2011 |
| 7879247 | Beverage bottling plant for filling bottles with a liquid beverage filling material, a container filling plant container filling machine, and a filter apparatus for filtering a liquid beverage A beverage bottling plant for filling bottles with a liquid beverage filling material, a container filling plant container filling machine, and a filter apparatus for filtering a liquid beverage. The filter apparatus has a plurality of filter chambers and associated... | 02/01/2011 |
| 7850856 | Method and device for monitoring the supply of substitution fluid during an extracorporeal blood treatment The invention relates to a method for monitoring the supply of substitution liquid during an extracorporeal blood treatment and to an extracorporeal blood treatment unit equipped with a device for monitoring the supply of substitution liquid. The monitoring of the s... | 12/14/2010 |
| 7815808 | Hot-gas pressure-filter apparatus A pressure-filter is disclosed along with its peripheral equipment that permit the automatic controlled operation of the filter for extracting liquids from a fluid liquid/solid slurry and for the formation of a substantially dry filter cake. The efficiency of the fi... | 10/19/2010 |
| 7807059 | Method and apparatus for collecting pollutants in a body of water During collection of pollutants having a density lower than that of water and carried by a surface layer of a body of water, water of the surface layer is caused to flow into and through a collection vessel having a separation compartment with a top wall, pollutants... | 10/05/2010 |
| 7754089 | Method and apparatus for monitoring an underdrain of a filter system A method and apparatus for monitoring an underdrain in a filter system for filtering water or wastewater. At least one diagnostic condition relating to the performance of the underdrain is monitored to determine if the underdrain is operating in an acceptable manner... | 07/13/2010 |
| 7744765 | Water treatment system A system, a device and a method for maintaining water quality in a pool or similar water container for use by people which is characterized in that a pressure sensor is arranged to sense the pressure variations inside a main water container 1 and to provide a... | 06/29/2010 |
| 7731855 | Septic tanks A method of determining whether a septic tank containing a liquid and sludge or scum mixture needs to be emptied, comprising locating a sensor in the mixture wherein the sensor is adapted to measure a parameter which can be used to determining the depth of sludge or... | 06/08/2010 |
| 7674386 | Slurry filtration system and apparatus A slurry filtration system and apparatus with peripheral elements for conditioning a slurry prior to entry into a pressure filter (32) and the control of fluid and liquid introductions into the filter (32) to produce a desired filter cake or filtrate. ... | 03/09/2010 |
| 7635435 | Method and apparatus for oil water separation A method and apparatus for separating immiscible liquids in a dispersion containing an aqueous liquid and at least one dispersed non-aqueous liquid by passing the dispersion through a series of absorbents, preferably polymeric. The direction of the flow through the ... | 12/22/2009 |
| 7611634 | Method for monitoring the degree of fouling of a filter A method of filtering a fluid wherein after filtering a contaminated fluid, which causes the formation of a filter cake, a substantially non-contaminated fluid is fed through the filter cake and filter at varying flux or at varying driving force. At the same time th... | 11/03/2009 |
| 7572383 | Process for filtering a fluid with a compressible filtration media A high rate, upflow filtration system is described in which a compressible, fibrous lump filtration media is compressed to adjust the porosity and collector size of the media in the bed and to provide a porosity gradient within the bed proceeding from more porous to... | 08/11/2009 |
| 7569150 | Dual generator single power source for tandem pool and spa A sanitizer generation system supplies power to a first and a second sanitizer generator. Each of the sanitizer generators is connected to a body of water by a circulation system. The system includes a power supply and a control system connected to the power supply ... | 08/04/2009 |
| 7537706 | Microporous diffusion apparatus Apparatus for active in situ multi-element gas sparging for bioremediation or physico-chemical degration for removal of contaminants in a soil formation containing a subsurface groundwater aquifer or a substantially wet unsaturated zone, the multi-gas contained in b... | 05/26/2009 |
| 7459089 | Microporous diffusion apparatus Apparatus for active in situ multi-element gas sparging for bioremediation or physico-chemical degration for removal of contaminants in a soil formation containing a subsurface groundwater aquifer or a substantially wet unsaturated zone, the multi-gas contained in b... | 12/02/2008 |
| 7445719 | Method and apparatus for collecting pollutants in a body of water During collection of pollutants having a density lower than that of water and carried by a surface layer of a body of water, water of the surface layer is caused to flow into and through a collection vessel having a separation compartment with a top wall, pollutants... | 11/04/2008 |
| 7438821 | Liquid filtering method and filtering system A filtering method which prevents adhesion between an outlet vessel and a filter element and which uses a flexible filter which allows smooth flow of liquid and is superior in filtering performance; and a filtering system. A filtering method which uses a flexible ve... | 10/21/2008 |
| 7435347 | Filter device and parts thereof and a method for operating of the filter device A filter device has a filter housing part (10) with a filter element (12) and can be detachably connected to another filter housing part (20). A valve (24) clears a fluid path in the interconnected state of the housing parts (10, 20 | 10/14/2008 |
| 7413665 | Methods and apparatus for blood component separation A system for separating a composite fluid into component parts thereof, including: a centrifuge having a rotor with a separation space and at least two valve members disposed thereon and a container set having a separation container adapted to be disposed in the sep... | 08/19/2008 |
| 7410568 | Sludge treatment An apparatus for treating sludge, comprises a press for dewatering the sludge, a compaction device for receiving and compacting sludge dewatered by the press, a shredder for receiving and shredding sludge compacted by the compaction device, and a tube conveyor for c... | 08/12/2008 |
| 7410473 | Blood pump having a disposable blood filter with integrated pressure sensors An integrated disposable cartridge for dialysis or ultrafiltration treatment of blood includes integral pressure sensors. Sensors are embedded in the blood filter on the cartridge to measure the pressure of blood or other fluids in the filter. ... | 08/12/2008 |
| 7399289 | Controller for ultrafiltration blood circuit which prevents hypotension by monitoring osmotic pressure in blood A method and system for the extracorporeal treatment of blood to remove fluid from the fluid overloaded patient is disclosed that non-invasively measures osmotic pressure across a filter membrane of a blood filter. The filter is permeable to water and electrolytes, ... | 07/15/2008 |
| 7399419 | Modular filtration system A filter system includes a set of modules, each module including screen assemblies and filter media sandwiched between the screen assemblies. A plurality of control assemblies are associated with each of the modules. Each of the control assemblies is in fluid commun... | 07/15/2008 |
| 7396451 | Methods and apparatus for blood component separation A system for separating a composite fluid into component parts thereof, including: a centrifuge having a rotor with a separation space and at least two valve members disposed thereon and a container set having a separation container adapted to be disposed in the sep... | 07/08/2008 |
| 7381336 | Automated water treatment system and method of use An automated method for controlling a solids inventory in a continuous backwashing upflow sand filter system treating a liquid inflow having impurities therein, includes the steps of: monitoring an influent inflow pressure and controlling the air pressure in an air ... | 06/03/2008 |
| 7381335 | Method and arrangement for continuous filtering of particles out of a liquid Method and arrangement for continuous filtering of particles out of a contaminated liquid by means of a number of separate filtering units (14) in order continuously to feed purified liquid to a consumer. Each filtering unit (14) comprises a rotatable,... | 06/03/2008 |
| 7374689 | System and method of gas energy management for particle flotation and separation A system for separating particles from a contaminated liquid stream includes an apparatus for mixing the liquid with one or more separation enhancement additives and gases. A pressure reducing device having a flow restrictor element within an enlarged tube receives ... | 05/20/2008 |
| 7371322 | Filtration system and dynamic fluid separation method A filtration system is provided with filter media operable to remove solids, particulate and colloidal matter from a process fluid. The filtration system may include one or more porous membranes which are anchored or secured on their periphery with a large open work... | 05/13/2008 |
| 7363982 | Subsea well production flow system Methods and apparatus for flowing a subsea well. The method comprises the steps of: supplying a multi-phase medium from a subsea tree 18 to a removable separator package 10; separating the multi-phase flow into one or more phases at the desired pressur... | 04/29/2008 |
| 7364662 | Scraper adjustment mechanism and method A scraper adjustment mechanism and method for a filter that permits an operator to adjust the distance between the scraper and a filter surface without the need to have access to the filter/scraper interface, or fasteners within the filter. ... | 04/29/2008 |
| 7360400 | Device, method and computer programme product for carrying out integrity tests on filter elements The invention relates to a device for carrying out integrity tests on filter elements by means of test gases, comprising a device housing (3), with an electronic controller (4), arranged therein for regulation and control of the progress of a test prog... | 04/22/2008 |
| 7359803 | Apparatus and method for measuring parameters of a mixture having solid particles suspended in a fluid flowing in a pipe An apparatus 10,70 and method is provided that includes a spatial array of unsteady pressure sensors 15-18 placed at predetermined axial locations X1-XN disposed axially along a pipe 14 for measuring at least one par... | 04/15/2008 |
