| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 210257100 | With storage unit | 27 |
| 20080223776 | Filtration unit for the selective elimination of a target substance - A filtration unit for the selective elimination of a target substance from a biological fluid comprising an external envelope, wherein the envelope encloses a filtering medium comprising: an upstream structure for eliminating at least the target substance comprising a stack of layers that are arranged to allow the flow of fluid through the layers in one direction comprising a non-woven material, and particles interposed between at least some of the layers, wherein the particles have an affinity for the target substance; and a downstream structure for retaining the particles comprising at least one layer of porous material. | 09-18-2008 |
| 20080308484 | Filtering Device for the Removal of Arsenic from Water - A filtering device for the removal of arsenic from the ground water/surface water. The filtering device of the present invention uses steel wool and sand as the raw material for the removal of arsenic from water and the entire outer body of the device can be made from cheaper material like plastic material or stainless steel. The filtering device works on the simple principle of co-precipitation of arsenic with metals, followed by adsorption and filtration through treated sand. The metal, steel wool, used in the device is a processed waste generated from a steel plant thereby making the device extremely cheaper and versatile. In the filtering device of the present invention, iron arsenate and iron arsenite are co-precipitated by the reaction of steel wool with arsenic in water. The device uses treated river sand simultaneously for the removal of iron leached out during reaction. | 12-18-2008 |
| 20090065422 | Cock for water purifier - This invention relates to a cock for water purifier which has a cock body formed with two compartments partitioned with each other. One of the two compartment is provided with a tap-water passage, and then a water input passage connecting with the water inlet of the water purifier is provided adjacent to the tap-water passage, and a conversion switch for opening and closing the water input and the water output is also disposed in the same compartment. Then, a water output passage connecting with the water outlet of the water purifier is provided in the other compartment of the cock body. In this way, the cock is activated to switch between opening state and closing state of the piping associated with the flow-in of the tap water to the water purifier or the flow-out of the cleaned water from the water purifier. Therefore, such damages as rupture or water leakage of the water purifier caused by the continuous rendering of impact came from the water-hammer action formed by the sustaining applied pressure of the tap-water to the water purifier during cease of the drinking of cleaned water can be avoided. | 03-12-2009 |
| 20090139924 | Biological fluid filtration apparatus - Apparatus for use in a biological fluid processing or fluid filtration system is provided. The biological fluid processing or fluid filtration system has novel open and closed loop processing systems wherein the gases transferred into and out of the system during processing pass through a porous medium in upstream and/or downstream gas inlet or outlet housings or vents in a manner which precludes the fluid being processed or filtered from ever contacting the housings or vents. Each housing or vent is separated from the fluid by a column of gas in its respective transfer line. The upstream gas inlet housing or vent is in communication with the unfiltered biological fluid, and the downstream gas inlet housing or vent is in communication with the filtered biological fluid. | 06-04-2009 |
| 20110266208 | METHODS AND APPARATUSES FOR FILTERING WATER FROM OIL AND GAS WELLS - The invention relates to a method and apparatus for filtering contaminated water from an oil or gas well. | 11-03-2011 |
| 20120006738 | Continuously Supplied Water Filtration Banks - A filtration and dispensing system that is particularly suitable for underdeveloped parts of the world is provided for storing, filtering, and dispensing rainwater, surface water, or groundwater. The system includes a bank of ceramic filters, a water retention container for holding water to be dispensed by the system, and at least one header tank to which water supplied from the water retention container is fed. A pump is utilized to withdraw water from a lower portion of the water retention container and supplied to the header tank. The withdrawn water is distributed by way of piping from the header tank to individual ceramic filters in the bank of ceramic filters, and a collection tank receives filtered water discharged from the bank of ceramic filters. Trickle feed nozzles or other discharge elements are used to discharge the filtered water from the collection tank for use. | 01-12-2012 |
| 20120241368 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - An liquid ejecting apparatus includes a head main body which ejects liquid and a flow channel member to which the head main body is fixed, the flow channel member includes a plurality of liquid chambers to which the liquid is supplied, and a filter chamber which communicates with each liquid chamber and in which a filter is provided, the liquid passing through the liquid chamber and the filter chamber is supplied to the head main body, inlets which are opened to the liquid chamber and communicate with each filter chamber, the filter chamber includes a plurality of first filter chambers which are juxtaposed in a first row and a plurality of second filter chambers which are juxtaposed in a second row, the first filter chambers directly communicate with the inlet, and the second filter chambers communicate with the inlet through the communicating flow channel. | 09-27-2012 |
| 20120267301 | Method and Apparatus for Filtrate Storage Handling - A method of removing a filtrate storage bottle from a water bath includes inserting at least two finger underneath a radially protruding lip of a filtrate storage bottle sealing cap and raising the at least two fingers to lift the bottle from the water bath. A side wall portion of the filtrate storage bottle sealing cap is smaller in perimeter than a circle surrounding the radially protruding lip. The cap creates a liquid tight seal with the filtrate storage bottle. | 10-25-2012 |
| 20130270169 | Ring Grit Remover with Vanes - A grit removal apparatus has a central opening between a cylindrical separation chamber above a grit storage chamber. An influent flume introduces a liquid stream directly into a lower portion of the periphery of the separation chamber, and an effluent flume removes a stream through an opening in an upper portion of the separation chamber wall. Outwardly spiraling vanes extend upwardly at the bottom center of the separation chamber, and a vertical cylindrical duct is supported above the vanes. A tunnel is defined in the separation chamber by an upper wall at the bottom of that opening and an inner wall concentric with the separation chamber wall. A ring extends inwardly from the separation chamber wall, with the tunnel upper wall defining a portion of the ring. A propeller inside the duct rotates to draw fluid flow up through the duct toward the upper portion of the separation chamber. | 10-17-2013 |
| 20130277297 | NOVEL LEUCOCYTE REMOVAL FILTER - The present invention aims to provide a leukocyte depletion filter that has both higher leukocyte removal performance and higher blood permeability than conventional filters. The leukocyte depletion filter according to the present invention includes a filter material having an average fiber diameter of 0.30 to 1.60 μm and a coefficient of variation of fiber diameter of at least 0.40 but not more than 1.20. | 10-24-2013 |
| 20140291227 | LEUKOCYTE FILTRATION UNIT WITH REDUCED PLATELET ADHESION - A filtration unit to selectively remove leukocytes from fluids containing platelets and systems including a filtration unit are provided. In one embodiment, a filtration unit is provided including an outer casing enclosing a porous element which includes a leukocyte-removal medium with a coating. The coating includes a polymer containing a main hydrophobic chain and a hydrophilic poly(ethylene oxide) side chain and having a mass average molar mass in the range of from about 1,000 g/mol to about 20,000 g/mol. The hydrophilic poly(ethylene oxide) side chain includes from 9 to 50 ethylene oxide units, and the mass percentage of the poly(ethylene oxide) side chain is less than about 50% of the mass average molar mass of the polymer. | 10-02-2014 |
| 20140291228 | MACHINE TOOL WITH CUTTING FLUID FILTERING APPARATUS - A machine tool includes a negative pressure generator that removes chips and sludge having adhered to a suction filter that is provided at a suction port of a pump that pumps up a cutting fluid stored in a contaminated water tank that stores the cutting fluid or a partition filter that partitions the contaminated water tank into a first contaminated water tank and a second contaminated water tank. The negative pressure generator allows removal of impurities, such as chips and sludge, having adhered to the suction filter or the partition filter for cleaning without blowing the chips and sludge that have adhered to the filters against the suction filter or the partition filter. | 10-02-2014 |
| 20160121248 | SLUDGE CONCENTRATOR ASSEMBLY WITH VARYING FIRST STAGE SEPARATOR, COMBINED WITH A SECOND STAGE, CLEAN FLOW OUTLET INCORPORATING FIXED AND VARIABLE FLOW RESTRICTOR ORIFICES - A dual stage filter assembly for use in a fluid cleaning and sludge removal operation, including a first stage separator incorporated into a first vessel and receiving a dirty fluid flow, a first stage clean fluid outlet extending from the first stage separator. A second stage filter is incorporated into a second vessel in fluidic communication with a dirty fluid outlet of the first stage separator for subsequent filtering and outflow through a second stage clean outlet. A flow restrictor is incorporated into said second stage clean outlet for controlling a flow rate through said filter in order to prevent clogging of the same by aggregating debris. | 05-05-2016 |
| 210257200 | Having membrane | 14 |
| 20090173686 | WATER TREATMENT DEVICE - Prior water treatment equipments have several water clarifying process filters, water purifier and water reservoir separated from each other, occupying too much space to install under a water tank and resulting inconvenient installment. The water treatment equipments for home cannot be received in water tanks, and thus water clarifier and water purifier are disposed in the water tanks while the water reservoir is disposed separately. Water pipes are connected in between. Therefore, water clarifying processors, water reservoir and water purifier utilizing RO membrane may be integrated to eliminate unnecessary space in existing systems. | 07-09-2009 |
| 20100116731 | Reverse Osmosis Water Purifier Having Simple Filter Configuration - Disclosed therein is a reverse osmosis water purifier having a simple filter configuration, which includes filter parts consisted of a sediment-filter, a chlorine-resistant polyamide composite membrane and a post-carbon-filter. The reverse osmosis water purifier can be designed in slim size by omitting a pre-carbon-filter, and provide drinking water of good quality since a portion of the residual chlorine in the feed water pass through the chlorine-resistant polyamide composite membrane to the downstream of said membrane and the residual chlorine can inhibit an adventitious growth of microorganism in the post-carbon-filter or the purified-water tank. | 05-13-2010 |
| 20100320136 | Device for Separating out Radioisotope Thallium-201 - Disclosed is a device for separating radioisotope thallium-201. The device includes an evaporation unit for a solution vial, a first glass vial connected to a first valve and a second valve, an ion exchange column connected to a third valve, a second glass vial connected to a fourth valve and a fifth valve, a collection vial for receiving solution from the fifth valve, a product vial with a membrane filter and a vacuum unit connected to the first valve, the fourth valve and a sixth valve. This device can separate out high-concentration thallium-201 solution from which radioisotope thallium-201 can be obtained. | 12-23-2010 |
| 20110049037 | MEMBRANE MODULE AND MEMBRANE CASSETTE - A membrane element is provided between a pair of water collecting cases. Water collecting spaces in which permeate having penetrated through the membrane element is collected are formed in the water collecting cases. The water collecting case of one membrane module and the water collecting case of the other membrane module are coupled via coupling portions. The coupling portions have flow holes. The water collecting space of the water collecting case of the one membrane module and the water collecting space of the water collecting case of the other membrane module communicate with each other via the flow holes of the coupling portions. | 03-03-2011 |
| 20110056878 | MEMBRANE FILTRATION SYSTEM - According to one embodiment, a membrane filtration system includes a raw water tank, a first tank, a second tank, a nanofiltration membrane module comprises a nanofiltration membrane, and removes the solute from the raw water with a solute removal rate of 1% to 30%, a first pump for supplying the raw water from the raw water tank to the module to cause the raw water to permeate through the membrane and send the water that has permeated through the membrane as a primary water to the first tank, a RO module comprises a RO membrane that further removes the solute from the primary water, and a second pump for supplying the primary water from the first tank to the RO module to cause the primary water to permeate through the membrane and send the water that has permeated through the membrane as a secondary water to the second tank. | 03-10-2011 |
| 20110163024 | BIOLOGICAL FLUID FILTRATION SYSTEM AND BIOLOGICAL FILTER USED THEREIN - A biological fluid processing or fluid filtration system is provided having novel open and closed loop processing systems wherein the gases transferred into and out of the system during processing pass through a porous medium in upstream and/or downstream gas inlet or outlet housings or vents in a manner which precludes the fluid being processed or filtered from ever contacting the housings or vents. Each housing or vent is separated from the fluid by a column of gas in its respective transfer line. The upstream gas inlet housing or vent is in communication with the unfiltered biological fluid, and the downstream gas inlet housing or vent is in communication with the filtered biological fluid. | 07-07-2011 |
| 20110174718 | FUEL FILTER - A fuel filter having a filter housing including at least one filter element. A water collection chamber configured to collect water separated out of the fuel. An active carbon filter is disposed downstream of the water collection chamber and a water-soluble dividing device is disposed between the water collection chamber and the active carbon filter and is impermeable or insoluble to fuel. | 07-21-2011 |
| 20130008843 | DIALYSIS FLUID PUMP, AND HEMODIALYSIS APPARATUS HAVING SAME - According to the present invention, a dialysis fluid pump comprises: a housing having an accommodating space formed therein; a dialysis fluid supply tube and a dialysis fluid recovery tube, at least a portion of each of which is accommodated in the accommodating space; a cam rotatably installed in the accommodating space; a motor for rotating the cam; and a first backflow pressure preventer and a second backflow pressure preventer adapted to be mobile in the accommodating space and be pushed by the cam. The dialysis fluid supply tube is made of a flexible material which can be contracted or relaxed, and one end thereof is connected to a dialysis fluid supply tank and the other end thereof is connected to a hemodialysis filter. The dialysis fluid recovery tube is made of a flexible material which can be contracted or relaxed, and one end thereof is connected to a dialysis fluid recovery tank and the other end thereof connected to the hemodialysis filter. The cam has a cam surface for pressing the dialysis fluid supply tube and recovery tube to discharge the dialysis fluid from the inside of the dialyzing fluid supply tube and of the dialyzing fluid recovery tube. The first backflow pressure preventer and the second backflow pressure preventer prevent the dialysis fluid from flowing backward through the dialysis fluid supply tube and the dialysis fluid recovery tube. | 01-10-2013 |
| 20130180908 | Filter Backflush System for Entrained Filtration Elements - A backflush fluid line is configured to provide a backflush fluid, under a pressure, to a filtration membrane of an encapsulated filtration vessel. A control subsystem can be used to assist in determining when the vessel should be backflushed, and a plurality of valves can cooperate to switch between a filtration mode and a backflushing mode. In preferred embodiments the backflush fluid line can be configured to provide at least some of the backflush fluid to the vessel via the permeate port, and debris fluid exits the vessel via the feed fluid inlet port. Three-way valves are preferably used to control the fluid flows. | 07-18-2013 |
| 20130228505 | FILTRATION SYSTEM FOR PREPARATION OF FLUIDS FOR MEDICAL APPLICATIONS - Systems, methods, and devices for preparation of purified water and medicaments for various uses including blood treatment are described. Methods, devices, and systems for creating multiple-treatment batches are described. For example, a medicament fluid circuit can include a container with an interior chamber. The container can have a fluid filling port and a fluid extraction port. Both ports can be connected to the interior chamber. The filling port can have two sterilizing filters, each of which has a membrane. The sterilizing filters can be connected in series the membranes are separated by a distance of at least 0.5 cm. A first of the sterilizing filters can have a sealed inlet. The fluid extraction port can be sealed. | 09-05-2013 |
| 20140042074 | FILTRATION SYSTEM - Disclosed is an energy-saving and eco-friendly filtration system which is capable of minimizing the amount of the energy required for the filtration, thereby remarkably reducing the cost of water treatment. The filtration system of the present invention comprises: a feed water tank for storing a feed water to be treated; a hollow fiber membrane module for filtering the feed water supplied from the feed water tank; and a filtrate tank for storing a filtrate produced by the hollow fiber membrane module, wherein the hollow fiber membrane module comprises a plurality of hollow fiber membranes for filtering the feed water, and the sum of head pressure of the feed water in the feed water tank and water pressure of the filtrate in accordance with siphon principle is higher than the threshold membrane pressure of the hollow fiber membranes. | 02-13-2014 |
| 20150108056 | MICROFLUIDIC DEVICE FOR BLOOD DIALYSIS - The invention provides microfluidic devices and methods of using such devices for filtering solutions, such as blood. | 04-23-2015 |
| 20150291448 | Reverse Osmosis System For Supplying Purified Water - A water purification system includes a first reverse osmosis device, and a water storage tank including a tank inlet and a tank outlet, the tank inlet configured to receive a permeate of the first reverse osmosis device. The system also includes a second reverse osmosis device including an inlet that is connected to the tank outlet and an outlet that releases a permeate of the second reverse osmosis device. The system provides treated water having a purity of about 0 to 20 ppm, which is sufficiently pure to provide spot-free washing and/or rinsing of objects such as vehicles, buildings and windows. | 10-15-2015 |
| 20160074570 | BLOOD PURIFYING FILTER AND BLOOD PURIFYING APPARATUS - Provided are a blood purifying filter and a blood purifying apparatus having the same. The blood purifying filter includes a plasma separation filter separating plasma from blood, a hemodialysis filter configured in parallel with the plasma separation filter to remove toxins and waste products from blood, a housing providing installation space for the plasma separation filter and the hemodialysis filter, and plasma inlet and outlet ports provided in the housing. The housing further includes a wall, a lower cap and an upper cap which are coupled to the plasma separation filter and the hemodialysis filter. | 03-17-2016 |
