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| Number | Title | Issue Date |
| 7442300 | Filter installation for liquids Filter installation for liquids, including a basin with at least one closable suction opening, and a filter, which has a filter element and, from a removal position above the liquid can be lowered in a straight line to an operating position assigned to the suction o... | 10/28/2008 |
| 7419592 | Device for filtering a fluid especially for plastic-processing installations The invention relates to a device for filtering a fluid, especially a liquefied plastic, said device comprising a housing, a supply channel, a discharge channel and optionally backwash channels. At least two filter elements are arranged in corresponding filter regio... | 09/02/2008 |
| 7407573 | Quick countercurrent-type water purifier A quick countercurrent-type water purifier configured with two filters, two motors, a control circuit, a purified water storage tank and a waste water tank, wherein a pipe extends from the waste water tank. Moreover, a raw water inlet pipe connects to the pipe throu... | 08/05/2008 |
| 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 |
| 7309430 | Filtration system utilizing a single valve to direct fluid streams between filter assemblies and corresponding methods A filtration assembly for filtering polymer fluids at varying flow rates includes at least two filter housing assemblies releasably attached to a filter support or main block. Polymer fluid is delivered to the filter housing assemblies via an inlet passage in the ma... | 12/18/2007 |
| 7300483 | Modular filtration assembly A modular filtration assembly for filtration of fluids, the capacity of the assembly depending upon the selected number of filtration modules included in the assembly. Each of the modules is made up of two identical housing members connected together in inverse, hea... | 11/27/2007 |
| 7293660 | Filter assembly having a five-way valve A filter device includes four couplers attached to four sides, and a casing attached to bottom. A filtering material receptacle may be attached to the casing for filtering the water. A valve member is rotatably received in the housing, and includes six openings and ... | 11/13/2007 |
| 7291122 | Hemofiltration methods for treatment of diseases in a mammal A hemofiltration system and method to treat an Inflammatory Mediator Related Disease in a mammal, including chronic and acute diseases, include a hemofilter and an adsorptive device. The hemofilter removes ultrafiltrate from a blood stream extracted from the mammal ... | 11/06/2007 |
| 7267234 | Backflushable filter device for molten material and distribution unit for a filter device of this type A backflushable filtering apparatus for a molten material, particularly for a plastic melt, comprises a housing (1) in which a sieving arrangement (17) is provided which includes at least two sieving sections (16) separated from one another. The... | 09/11/2007 |
| 7255141 | 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 which are each... | 08/14/2007 |
| 7223298 | Filter assembly for pipelines A filter assembly is disclosed for use in connection with the filtration of products transported via pipelines, including high pressure gas pipelines. The disclosed filter assembly is comprised of a plurality of filter modules, a series of valves, inlet and outlet p... | 05/29/2007 |
| 6998046 | Filter system and methods of operating the same A filter system employing a modular filter and at least one high rate pre-treatment system for expeditiously and effectively filtering water. The modular filter includes a reservoir housing for containing fluid. A plurality of filter cells are disposed in the reserv... | 02/14/2006 |
| 6991725 | Switchable diesel fuel filter assembly A switchable fuel filter assembly with alternate fuel paths which carry fuel, respectively, through alternate fuel filters depending on the position of a valve member. ... | 01/31/2006 |
| 6951614 | Method and device for filtering liquids, especially drinks A method for filtering liquids, especially drinks, is by a filtering device having at least two filter lines. Each filter line has at least one filter unit with at least one preliminary filter and one terminal filter which can be connected to or disconnected from th... | 10/04/2005 |
| 6878274 | Device for filtering fluid substances used for meat materials injecting machines Device for filtering fluid substances, used for a meat materials injecting machine which comprises a coarse filter (1) provided with means (2) for retaining and withdrawing from a fluid the largest particles, and at least a first and a second fine filt... | 04/12/2005 |
| 6840272 | Fuel-conditioning device A fuel-conditioning device for removing moisture from fuel includes two replaceable fuel-conditioning cartridges. The cartridges are alternately put in use by selectively positioning a valve actuator. A marking system for the fuel-conditioning cartridges and the val... | 01/11/2005 |
| 6533934 | Filter-replacement cassette A filter-replacement cassette for an extruder. A housing (1) has at least one bore. The bores (2 & 3) extend above and below and at a right angle to the horizontally flowing plastic. A cartridge (4 or 5) that accommodates a replaceable filter (5) slides b... | 03/18/2003 |
| 6485636 | Dual filter for diesel engine A dual filter system for diesel fuel is provided, which allows the operator to keep the diesel engine running while inspecting or replacing one of the two fuel filters. The system includes an upper block which is divided into two identical mirror image se... | 11/26/2002 |
| 6355170 | Dual manifold filtering system In accordance with the present invention there is provided a dual manifold filtering system. The dual manifold filtering system of the present invention, unlike the currently available filtering systems, allows the filter elements to be cleaned from both ... | 03/12/2002 |
| 6325217 | Backflush attachment for a filtering device A backflush attachment for a filtering device, in particular for a plastics melt filter, the backflush attachment comprising a housing having guide channels following an entry bore, as well as backflushing channels, and at least one rotary piston which en... | 12/04/2001 |
| 6306291 | Automatic silt density index apparatus An apparatus for monitoring particulates in a liquid stream and the rate at which the particulates foul a filtering medium, generally a reverse osmosis membrane, to determine at what point in time the filtering medium should be cleaned or replaced. The ap... | 10/23/2001 |
| 6290846 | Device for filtering molten plastic A device for the filtering of a fluid stream, particularly for the filtering or a molten plastic, with at least one fluid supply duct or a first connection area for connecting with an existing fluid supply duct and at least one fluid removal duct or a sec... | 09/18/2001 |
| 6277293 | Dual filter isolation block A dual filter isolation block for isolating a fluid stream between a fluid source and a user device and including a main body, a first fluid path provided in the main body between the source and the user device and a first filter provided in the first flu... | 08/21/2001 |
| 6221266 | Variable capacity continuous extended area filter A molten polymer filtration assembly includes at least three independently controllable and removable filter housings which extend from a common inlet passage to a common outlet passage, thereby providing parallel flow paths for polymer filtration. Each o... | 04/24/2001 |
| 6203714 | Device for filtering a liquid and method for disinfecting such a device Device for filtering a liquid. The filter device is provided with at least two filter elements (8, 15) placed parallel to each other. A three-way cock (6, 13) is accommodated in the pipe (4, 5) to each filter element (8, 15) for connection of the inflow o... | 03/20/2001 |
| 6117343 | Filler-packing apparatus, filler-packing method, and filler-packed column assembly A filler-packing apparatus comprises a bundled filler-receiving space assembly, a movable bottom stopper assembly having bottom stoppers which are insertable into bottom openings of the filler-receiving spaces of said assembly, and top stoppers which are ... | 09/12/2000 |
| 6033566 | Continuous flow filter system A filter system for continuously removing solid matter from a wastewater is provided. The flow of wastewater is automatically alternated between a pair of filter chambers, each of which contain a filter assembly, upon the filter assemblies reaching a pred... | 03/07/2000 |
| 5893969 | Filter vessel safety apparatus A safety apparatus for pressurized filter vessels includes a protective shroud, a mechanical and electrical interlock device that prevents the opening of the filter vessel cover unless the input and output port valves are closed and electrical power to th... | 04/13/1999 |
| 5858226 | Selectively removable gravitational and vacuum sludge filtration apparatus and method A selectively removable gravitational and vacuum sludge filtration apparatus and method that provides for retrofit into a container and separation of the sludge solids from the sludge liquids therein. A pair of spaced vertically oriented filter assemblies... | 01/12/1999 |
| 5804062 | Water treatment plant with clarifier and peripheral filter Apparatus for treating a liquid containing suspended solids comprising a clarifying vessel and a number of filters positioned around the periphery of the clarifying vessel for receiving and filtering liquid from the clarifier. A filter may be backwashed b... | 09/08/1998 |
| 5795481 | Process for the treatment of aqueous effluents on biofilters or other devices making use of fixed cultures A process for the treatment of aqueous effluent with a view to its purification, the process including at least one stage consisting of causing the water to pass into the interior of at least one battery of several biological filters with fixed cultures o... | 08/18/1998 |
| 5779898 | Control device for filters in at least two partial fluid streams A control device for at least two partial fluid ducts comprises a common fluid supply duct and a common fluid removal duct. The fluid supply duct is connected with the fluid removal duct by at least two partial fluid ducts. A filtering device, a valve dev... | 07/14/1998 |
| 5772879 | Self-cleaning fluid strainer A pair of strainer systems in parallel provide continuous filtration of solids from an influent stream. In influent strikes a filtration medium in the form of a porous membrane at an angle other than the perpendicular to create a washing action to remove ... | 06/30/1998 |
| 5670038 | Liquid filter system A filter system for a liquid, usually water, is disclosed. The system includes two filters, each having a housing and a filter medium located in the housing through which the liquid flows in one direction to be filtered. A pressure operated distributing v... | 09/23/1997 |
| 5611924 | High flow filter system A high flow filter system uses readily available filters of moderate capacity to provide a high capacity flow in a reliable and easily maintained structure. The system includes a pressure vessel (20, FIG. 2) with inlet and outlet ports (16, 42), and an ou... | 03/18/1997 |
| 5417849 | Machine tool coolant filtering system A machine tool coolant filtering system (10) is disclosed as including a plurality of coolant filter tanks (12). Each filter tank (12) is designated for receiving coolant carrying a different material contaminant. A fluid control communication system (22)... | 05/23/1995 |
| 5286381 | Filter assemblies A filter assembly particularly useful for the nuclear industry is provided with a number of cylindrical cartridge filters attached to a plenum chamber which is formed by a rotational moulding process. A rod is provided on the assembly which can be attache... | 02/15/1994 |
| 5230793 | Chip filtration and removal system Individual machine tools are supplied with coolant by individual filtration units which separate metal chips from the coolant in order to provide a clean supply to the machine tool. A central vacuum unit is capable of sucking chips from all of the filtrat... | 07/27/1993 |
| 5227050 | Floating suction extractor for skimming liquids having a tendency to foam A device for taking up fluids likely to foam, especially emulsions, with a suction system having a suction pipe through which the fluid is taken up at one end, the suction pipe having an aperture at the end thereof, and a first container attached at the o... | 07/13/1993 |
| 5221467 | Contaminated solution filtration apparatus and machining solution filtration apparatus for machining device A machining solution filtration apparatus for a machining device which includes: a filter, a filter medium which is arranged separately from the filter and supplied continuously; a unit for supplying a contaminated machining solution to the filter medium;... | 06/22/1993 |
