| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 210332000 | With residue removal or liquid agitation | 21 |
| 20130075322 | CLEANING DEVICE OF MEMBRANE FILTRATION APPARATUS - A membrane filtration apparatus includes a frame, in which a plurality of membrane members, an aeration device, a cleaning device, and a jet device are provided. The cleaning device includes a rail mounted on the frame; an up frame engaging the rail to be moved in the rail, a plurality of cleaning wires respectively having an end connected to the up frame and respectively passing through a space between each two of the neighboring membrane members; and a low frame connected to opposite ends of the cleaning wires. A motor is provided to move the up frame so that the cleaning wires are reciprocating in the space to scratch the sludge off the membrane members. | 03-28-2013 |
| 20130186820 | FILTRATION SYSTEM - An innovative fiber-wound filtration system for use with spiral-trajectory type cleaning systems. | 07-25-2013 |
| 20130213876 | Device Including a Compact Spray Nozzle for Cleaning a Filter Cloth in a Disc Filter - A device for cleaning a filter cloth ( | 08-22-2013 |
| 20140021125 | SELF-CLEANING SUCTION FILTER - The present invention provides a self-cleaning suction filter including a filter mechanism and a sewage suction assembly. The sewage suction assembly is rotatably arranged at the center of a fine strainer and communicated with a sewage discharge cavity through a sewage suction pipe, and the sewage suction pipe is spacedly and fixedly provided with a plurality of “T”-shape suction nozzles for suctioning deposits on the inner wall of the fine strainer. The self-cleaning suction filter further includes: a sand collection cavity arranged at the tail of the fine filter cavity and communicated with the fine filter cavity; and the coarse filter cavity, the fine filter cavity, and the sand collection cavity descend in height. Water are automatically collected in the sand collection cavity and discharged in time, thereby ensuring the stable filter function after the filter is used for a long time. | 01-23-2014 |
| 20150021258 | ANTIMICROBIAL APPLICATION SYSTEM WITH RECYCLE AND CAPTURE - A capture unit for use with an antimicrobial application unit may include an upstream filter and a downstream filter. The upstream filter may be positioned to receive effluent from the application unit and to filter solid components from the effluent. The resultant upstream effluent filtrate may then be passed downstream to the downstream filter. The downstream filter may be used to filter an antimicrobial component from the upstream effluent filtrate and the resultant downstream effluent filtrate may be suitable for disposal as wastewater discharge. The antimicrobial is preferably a quaternary ammonium compound, is more preferably an alkylpyridinium chloride, and is most preferably cetylpyridinium chloride. | 01-22-2015 |
| 210333010 | Backwash or blowback | 15 |
| 20100193426 | FILTER SYSTEM - The present invention relates to a filter system ( | 08-05-2010 |
| 20120211411 | Extended Area Filter - An extended area filter is provided. The extended area filter has sheets of a filter media configured for increased filter media surface area. A plurality of filter media tubes are position in a concentric arrangement about a longitudinal axis of the filter, defining annular inlet volumes and annular outlet volumes, the annular inlet volumes receiving an unfiltered fluid, and the outlet volumes receiving a filtrate passed through the tubes of filter media. A filter apparatus configured for filtering a contaminated fluid and employing extended area filters of the invention is also provided. | 08-23-2012 |
| 20130206674 | FLUID FILTER DEVICE - There is disclosed a fluid filter device. The fluid filter device comprises: a primary filter section having a first porous section; and a secondary filter section having second porous section; wherein: (i) the primary filter section and the secondary filter section are in fluid communication with one another, and (ii) the first porous section has a greater porosity than the second porous section. There is also disclosed a fluid isolation device for isolation an exterior fluid from a surface of an enclosure containing interior fluid. The device comprises a sleeve element movable between: (i) a retracted portion in which exterior fluid contacts the surface of the enclosure, and (ii) an extended position in which exterior fluid is isolated from contacting the surface of the enclosure. A distal portion of the sleeve element is configured to actuate a backwash element configured to backwash the interior fluid from the enclosure when the sleeve element is in the extended position. | 08-15-2013 |
| 20140021126 | REVERSIBLE BACKWASHING SELF-CLEANING FILTER - The present invention relates to a reversible backwashing self-cleaning filter, including a filter mechanism, a backwashing drive mechanism driving a sewage suction assembly, and a high-pressure washing apparatus. The high-pressure washing apparatus includes a high-pressure washing pump and at least one high-pressure branch pipe arranged along the outer wall of the fine strainer and operating synchronously with the sewage suction assembly, where a plurality of spray nozzles are spacedly arranged where the high-pressure branch pipe is opposite to the outer wall of the fine strainer. With collaboration of translation and rotation of the sewage suction assembly, the inner and outer walls of the entire fine strainer are thoroughly cleaned, suitable for real-time purification of a low-pressure water circulating system. | 01-23-2014 |
| 20140231334 | FILTER SYSTEM FOR A LIQUID MEDIUM - A filter system for a liquid medium is suggested, comprising at least one filter module ( | 08-21-2014 |
| 20140263028 | FILTERING DEVICE FOR FLUIDS - The invention relates to a filtering device ( | 09-18-2014 |
| 20140305862 | BACK-FLUSH FILTER SYSTEMS AND MECHANISMS THEREFOR - Provided is a filtration system including a filter housing having an inlet port and an outlet port. A plurality of filtration units are disposed within the filter housing. The system can further include at least one cleaning system configured for cleaning at least one filtration unit of the plurality of filtration units and at least one drive unit. The at least one drive unit can be configured for displacing one or both of said at least one filtration unit of the filtration units and the at least one cleaning system with respect to the other of said at least one filtration unit of the filtration units and said at least one cleaning system. | 10-16-2014 |
| 20150014238 | DEVICE FOR FILTERING A THERMOPLASTIC MELT - A device for filtering a thermoplastic melt, comprising a housing having at least one fluid feed channel and at least one fluid discharge channel and having at least two bores. The bores are in fluid communication with the fluid feed channel and the fluid discharge channel, and each houses a displaceable bolt provided with a filter unit having an inflow side and an outflow side. Each displaceable bolt can be moved at least between a filtering position and a back-flushing position. In a filling position, in which fluid flows from the outflow side of the filter unit to a storage cavity formed in the bore by the movement of the displaceable bolt. When the displaceable bolt moves into the back-flushing position, the fluid then again flows through the filter unit to the at least one back-flushing channel and thus escapes from the housing. | 01-15-2015 |
| 20150090655 | FILTRATION ASSEMBLY WITH BACKWASHING FOR PRESSURIZED FLUID SYSTEM - A filtration assembly for a pressurized fluid system having a horizontally oriented tubular pressure vessel with a removable lid. A plurality of shroud tubes arranged in an inner array and a surrounding outer array receive contaminated fluid from the pressure vessel inlet through apertures in a vessel bulkhead to which the shroud tubes are attached. A plurality of tubular filter media elements with a closed end are received in each shroud tube and the opposite open end of each filter element is attached over an aperture in a cover plate sealed over the open end of the shroud tube. A tubular back wash arm has its opposite ends disposed for, upon rotation by a servo motor, being positioned progressively over selected apertures in the bulkhead for connecting the selected filter media elements to a drain for effecting backwashing. | 04-02-2015 |
| 20150360157 | FILTER MEDIUM, MANUFACTURING METHOD THEREFOR, AND FILTER EQUIPMENT USING SAME - Provided are a filter medium, a manufacturing method thereof, and a filter apparatus using the filter medium. The filter medium includes: a porous substrate; a nanofiber web that is laminated on both sides of the porous substrate, and that has a number of fine pores formed by electrospinning a polymer material; and an adhesive unit for adhering the porous substrate and the nanofiber web integrally, wherein the adhesive unit is achieved by applying heat whose temperature is lower than the melting point of the porous substrate and higher than the melting point of the nanofiber web. | 12-17-2015 |
| 20160008748 | FILTER DEVICE FOR CONTINUOUSLY FILTERING | 01-14-2016 |
| 20160059157 | DISK TYPE FILTERING APPARATUS - A fluid filtering apparatus such as for filtering particulates and other materials from treated water includes a tank and a filtering region configured as a plurality of individual effluent regions, defined in part by channel frames, disposed between a plurality of influent regions interposed between the effluent regions. A double sided backwash shoe is scannable in the influent regions, to simultaneously clean opposed filter media exposed thereto. The backwash shoe is free to move inwardly and outwardly of the opposed filter media. Additionally, the backwash shoe includes an end opening, positioned adjacent to the base of the tank, to remove sludge and particulates which have settled to the area near the base of the tank while backwashing a filter media. | 03-03-2016 |
| 20160059158 | DISK TYPE FILTERING APPARATUS - A fluid filtering apparatus such as for filtering particulates and other materials from treated water includes a tank and a filtering region configured as a plurality of individual effluent regions, defined in part by channel frames, disposed between a plurality of influent regions interposed between the effluent regions. Filter plates having an opening therethrough covered by a filter media are removable receivable in the channel frames, such that filter media in filter plates in adjacent channel frames is in a facing, opposed, relationship. A double sided backwash shoe is scannable in the influent regions, to simultaneously clean opposed filter media exposed thereto. The backwash shoe is free to move inwardly and outwardly of the opposed filter media. Additionally, the tank may include a second filtering region, which is selectively isolatable from the first filtering region. | 03-03-2016 |
| 20160096145 | WASTE WATER CLEANING SYSTEM WITH SELF-CLEANING MICROFILTERS - Systems for cleaning waste water described herein include an integrated and portable skid having a clarifier and a microfiltration tank. The microfiltration tank includes a plate with a plurality of microfilters, the microfilters each including a sock filter that hangs down into the microfiltration tank from the plate. The system may periodically clean the microfilters by opening a backwash valve below the microfiltration plate, reversing water flow through the microfilters based on a negative pressure drop, separating particulate from the microfilter walls. | 04-07-2016 |
| 20160096146 | MICROFILTRATION SYSTEMS FOR CLEANING WASTE WATER - Systems for cleaning waste water described herein include an integrated and portable skid having a clarifier and a microfiltration tank. The microfiltration tank includes a plate with a plurality of microfilters, the microfilters each including a sock filter that hangs down into the microfiltration tank from the plate. The microfilters may be individually installable from the top of the plate, allowing for replacement without stopping the water cleaning process. | 04-07-2016 |
| 210334000 | Alternating filter and residue remover | 1 |
| 20100176049 | FILTER DEVICE - The filter device is provided with a housing ( | 07-15-2010 |
