With Residue Removal Or Liquid Agitation Patents (Class 210/332)
  • Patent number: 10040688
    Abstract: The present disclosure relates to a method for producing graphite oxide and an apparatus therefor.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: August 7, 2018
    Assignee: STANDARDGRAPHENE CO., LTD.
    Inventors: Sang Jin Hong, Sung Hun Eom, Myung Sin Lee
  • Patent number: 9895635
    Abstract: Fluid filtration devices and methods of filtering fluids are described. The devices generally include a housing and an annular filter assembly, wherein the filter assembly is located inside the housing and comprises a filter material. The filter material may be, for example, an electroformed nickel screen having a smooth working surface and expanding pores. A rotating cleaning assembly comprising a distributor and wipers may be located inside the filter assembly.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: February 20, 2018
    Assignee: Spiral Water Technologies, Inc.
    Inventor: David J. Levitt
  • Patent number: 9368976
    Abstract: An adaptive inductive ballast is provided with the capability to communicate with a remote device powered by the ballast. To improve the operation of the ballast, the ballast changes its operating characteristics based upon information received from the remote device. Further, the ballast may provide a path for the remote device to communicate with device other than the adaptive inductive ballast.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: June 14, 2016
    Assignee: Access Business Group International LLC
    Inventor: David W. Baarman
  • Publication number: 20150119496
    Abstract: Provided is a method of producing a wet master batch, including the step of: solid-liquid separating and dehydrating a coagulum slurry obtained by mixing a rubber latex with a carbon black slurry containing a carbon black dispersed in water and coagulating the mixture, the solid-liquid separating and dehydrating step including gravity filtering and vacuum filtering the coagulum slurry on a filtration filter and then pressurizing, by means of a pressurizer, the coagulum slurry on the outer peripheral surface of a drum, to thereby pressure dehydrate the coagulum slurry. Also provided is a solid-liquid separating and dehydrating apparatus for wet master batch production, which includes: a filtration filter; a filtration portion; a drum; and a pressurizer.
    Type: Application
    Filed: October 28, 2014
    Publication date: April 30, 2015
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Yasuto YANAGISAWA
  • Patent number: 8992775
    Abstract: The invention provides an apparatus and method for removing diatomaceous earth and contaminants from a filter and for filtering liquid using diatomaceous earth. Embodiments of the method can include a washdown process, a backwash process, and a filtering process. Some embodiments of the apparatus can include one or more filter cartridges with cartridge tubes to increase flow during the backwash process. Some embodiments of the apparatus can include a backwash sprayer to disturb contaminants during the backwash process. Some embodiments of the apparatus can include a removable lid to access the filter cartridges during the washdown process.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: March 31, 2015
    Assignee: Pentair Water Pool and Spa, Inc.
    Inventors: Robert Frank Swindell, Leonard Richiuso, Brian Everett Cox
  • Publication number: 20150021258
    Abstract: 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.
    Type: Application
    Filed: October 9, 2014
    Publication date: January 22, 2015
    Applicant: Safe Foods Corporation
    Inventors: Justin Massey, Tim Yeaman, Gary Nolen, Kelly Beers, Joe Rheingans
  • Publication number: 20150001166
    Abstract: Provided is a filter system including an exposed filtration media. The filter system further includes a raw liquid inlet flow path into a filtering side of the filtration media, a filtered liquid outlet flow path at a filtered side of the filtration media extending to a filtered liquid collecting port, a liquid pump for propelling liquid through the filtration media, and a rinsing mechanism for removing filtrate from the filtering side of the filtration media.
    Type: Application
    Filed: January 21, 2013
    Publication date: January 1, 2015
    Applicant: AMIAD WATER SYSTEMS LTD.
    Inventors: Ra'anan Ben-Horin, Shahar Nuriel, Omry Levin, Yuval Shamir, Ud Mussel
  • Publication number: 20140374363
    Abstract: Method and apparatus for reducing the thickness of a precoat-layer accumulated on the filtering surface of a filter disc from a solids-containing suspension in a basin of a disc filter, said disc filter having two or more filter discs arranged on a shaft and between them at least one drop chute provided with a scraper on both sides, which scraper scrapes the cake filtered from the suspension on the filtering surfaces of the filter discs into the drop, the layer thickness of the precoat on the filtering surface is reduced by shortening the distance between the tips of the scrapers and the filtering surface, and the precoat thickness reduction is accomplished for the precoats on the filtering surface of the two filter discs on both sides of the drop chute non-simultaneously.
    Type: Application
    Filed: February 5, 2013
    Publication date: December 25, 2014
    Inventors: Tommi Hammarberg, Matti Mantsinen, Simo Suutari, Petri Tarjavuori
  • Patent number: 8858789
    Abstract: A system for cleaning up an oil spill and recovering the spilled oil includes frames supporting superhydrophobic oil-absorbing nanowires. A first container supports the frames with the nanowires. A mixture of oil and water is pumped into the first container where the oil from the mixture is absorbed by the nanowires as water is separated from the mixture and deposited in the first container where it is then pumped therefrom. A second container supports the frames with the oil so-absorbed by the nanowires. The frames with the oil so-absorbed by the nanowires are heated whereby the oil so-absorbed separates from the nanowires and is deposited in the second container. The oil so-deposited in the second container is then pumped therefrom.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: October 14, 2014
    Assignee: The United States of America as represeted by the Secretary of the Navy
    Inventors: Jason M. Pappafotis, Daniel J. Flisek, David M. Robinson
  • Publication number: 20140263028
    Abstract: The invention relates to a filtering device (100) comprising: a filter support element (10) which is movably mounted in the housing (30), which has the shape of a cylindrical bolt, and which has multiple filter chambers (11.1, 11.2; 12.1, 12.2), a filtering element being arranged in each said filter chamber; and an inlet channel (31.1, 31.2 32.1, 32.2) and an outlet channel (41.1, 41.2; 42.1, 42.2) in the housing (30), wherein the inlet channel and the outlet channel are each to be connected to at least one filter chamber in a production position. The aim of the invention is to increase the effective filtering surface. This is achieved in that at least two pairs of filter chambers are provided on the filter support element. The filter chambers of each pair are arranged on the filter support element in a diametrically opposed manner, and there are no connections between the filter chambers within the filter support element. At least one respective intermediate channel (13.1, 13.2, 14.1, 14.
    Type: Application
    Filed: June 19, 2012
    Publication date: September 18, 2014
    Applicant: KREYENBORG VERWALTUNGEN UND BETEILIGUNGEN GMBH & CO. KG
    Inventors: Robert Middler, Stefan Wöstmann
  • Publication number: 20140263103
    Abstract: An example nonlimiting embodiment of the present invention provides a flow divider that includes a slurry receiving compartment and a discharge arrangement having a plurality of discharge apertures. The slurry receiving compartment is arranged to relatively uniformly flow a portion of a slurry into each of the discharge apertures. The discharge apertures may be arranged linearly and/or horizontally such that the portions of the slurry exits each of the discharge apertures at a relatively even flow rate and feed feed boxes connected to vertically tiered screening surfaces of a screening machine.
    Type: Application
    Filed: March 12, 2014
    Publication date: September 18, 2014
    Applicant: Derrick Corporation
    Inventors: Mike Peresan, James Colgrove
  • Patent number: 8758621
    Abstract: A method of purifying impure water contaminated with a filterable impurity and a dissolved impurity, such as seawater, comprising the steps of: providing impure water to a primary microfiltration or ultrafiltration unit to remove the filterable impurity and produce impure filtered water contaminated with a dissolved impurity; providing the impure filtered water contaminated with a dissolved impurity to a reverse osmosis unit to produce a potable water stream and a residual reverse osmosis stream; and treating the residual reverse osmosis stream prior to reuse. The treatment may be in the form of passing through a secondary filter (such as another microfiltration or ultrafiltration membrane or a cartridge filter, and the subsequently treated reverse osmosis reject may be used to backwash the microfiltration or ultrafiltration unit.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: June 24, 2014
    Assignee: Evoqua Water Technologies LLC
    Inventor: Joseph Edward Zuback
  • Patent number: 8753506
    Abstract: Disclosed herein is an apparatus for filtering sewage and wastewater. The filtering apparatus has a vertical structure including a filtering belt comprising a filter bag or a filter mesh that can filter out fine impurities. For this, the filtering apparatus includes a drive motor that receives power to drive the apparatus, an upper drive drum that is operated by the drive motor, a lower rotating drum that is interlocked with the upper drive drum, and a filtering belt that is wound and rotated around the upper drive drum and the lower rotating drum. The filtering apparatus cannot only filter out fine impurities less than from 0.1 mm to 0.2 mm but also separate earth and sand, unlike conventional filtering apparatuses that cannot conduct them.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: June 17, 2014
    Assignee: Essa Co., Ltd.
    Inventor: Heon Mok Kim
  • Publication number: 20140021125
    Abstract: 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.
    Type: Application
    Filed: July 18, 2012
    Publication date: January 23, 2014
    Inventors: Deng Hong Luo, Wen Bin Liu, Yong Huang, Qing Huang
  • Patent number: 8628665
    Abstract: A water treatment apparatus includes a tank, a driving unit, a filtered-water pipe, a filtering unit and at least one scraping unit. The tank includes a wall, an inlet pipe extending through an upper portion, and an outlet pipe extending from a lower portion. The driving unit is located on an external side of the tank. The filtered-water pipe extends throughout the tank and is connected to the driving unit. The filtering unit includes flat filtering bags located around the filtered-water pipe. The flat filtering bags can be spun together with the filtered-water pipe. The scraping unit includes scrapper assemblies each located between and in contact with two adjacent ones of the flat filtering bags.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: January 14, 2014
    Assignee: New Century Membrane Technology Co., Ltd.
    Inventor: Chi-Chang Kuo
  • Patent number: 8617389
    Abstract: A device for filtering a liquid processing medium used in cutting has an intake and first filter cells with inlet, filter element, and outlet. The filter elements can be back-flushed. A disposal container as well as a suction conveying device are provided. For filtering, the intake is connected by first valves with first filter cell inlets and first filter cell outlets are connected to a discharge. For back-flushing, inlets of the first filter cells are connected through the first or a further valve to the disposal container. A second filter cell with filter element for contaminated processing medium of the disposal container is disposed above or inside the disposal container. The second filter cell, for filtering, is connected by the suction conveying device to the discharge. A cleaning device for the second filter cell is provided so that waste products removed during cleaning pass directly into the disposal container.
    Type: Grant
    Filed: February 10, 2011
    Date of Patent: December 31, 2013
    Inventor: Matthias Leipoldt
  • Patent number: 8585898
    Abstract: The present invention relates to a pressurized filtration plant that includes: a sealed tank (1) in which discs (2) are provided including filtering sectors (20) carried by a rotary shaft (3) and connected to collectors within said shaft, a dispenser (10) enabling the egress of filtrates, the discharge of spinning air and the intake of blowing air for releasing the spun cakes, at least one duct for supplying a liquid laden with solid particles, at least one duct or discharging the filtrates, and a hopper (1b) for recovering the solid particles, characterized in that the discs (2) are vertically arranged so that the lower portion thereof is submerged in buckets (4) covered with deflectors (41) and including means for scrapping solid material deposits on the outer walls thereof.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: November 19, 2013
    Assignee: Gaudfrin
    Inventor: Guy Gaudfrin
  • Publication number: 20130299408
    Abstract: Provided is a filtration cassette having a rigid body configured for externally supporting a filtration media disposed thereover and having at least one filtering surface configured with a flow path facilitating filtered fluid flow from a space extending between the filtration media and the filtering surface, and extending towards an outlet terminal. Also provided is a filtration segment including such a filtration cassette and where the filtration media is a filtration thread tensionally coiled over the filtration cassette at a multi-layered and tight configuration. Further provided are a plurality of such filtration segments which are configured into a disk-type assembly forming a filtration unit for a filtering system.
    Type: Application
    Filed: October 6, 2011
    Publication date: November 14, 2013
    Applicant: AMIAD WATER SYSTEMS LTD.
    Inventors: Marina Olenberg, Boaz Zur, Ron Tal, Gonen Eshel
  • Publication number: 20130292314
    Abstract: A pressure filtration system for cleaning residual quenching water of a gasifying device that gasifies carbon-containing fuels under elevated pressure is provided. The soot water from the quencher is passed to a filter system, which has pressure filter chambers operating alternately in filtering mode under gasifying pressure or in cleaning mode. The filtrate from these chambers is passed to a quenching water reservoir, from which the quencher is fed with quenching water. Only small temperature and pressure losses with respect to the residual quenching water leaving, and only a small additional amount of energy has to be expended to overcome the remaining pressure difference to bring the filtrate that is to be returned back to the gasifying pressure. The residual quenching water is cleaned substantially under gasifying pressure in a pressure filter, avoids flash evaporation of the residual quenching water into the vacuum area, with vapour cooling and a subsequent increase in pressure and reheating.
    Type: Application
    Filed: November 16, 2011
    Publication date: November 7, 2013
    Inventors: Norbert Fischer, Frank Hannemann, Friedemann Mehlhose, Mirko Putz, Peter Taffelt
  • Patent number: 8574436
    Abstract: 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 concentrically with respect to each other. A particulate collection volume is at least partially defined between the inner and outer filter. The method includes directing a flow of slurry into the particulate collection volume under sufficient pressure to force fluid within the particulate collection volume through one of the inner and outer filters and any particulate matter blocking a filtering surface of the inner and outer filters.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: November 5, 2013
    Inventor: Sean R. Duby
  • Patent number: 8518273
    Abstract: The method and arrangement is for cleaning at least one of filter sheets and filter cakes in a pressurized white liquor filter with spray nozzles and driving fluid. The white liquor filter is used in a causticizing process in which green liquor is causticized before the white liquor filter by the addition of lime and in which it forms during the process a lime mud slurry. The white liquor filter 101 is used to separate white liquor from the lime mud. The driving fluid for the spray nozzle is constituted principally by the filtrate that is obtained from the filter.
    Type: Grant
    Filed: May 24, 2005
    Date of Patent: August 27, 2013
    Assignee: Metso Paper Sweden AB
    Inventors: Patrik Lownertz, Magnus Ingelman
  • Publication number: 20130213876
    Abstract: A device for cleaning a filter cloth (4) of at least one filter element (3) in a rotary disc filter (1), including at least one flush tube (6), the centre axis of which is located between two adjacent parallel filter elements, and which includes at least one outlet (9) arranged in a direction other than towards the respective filter cloth (4), and at least one spray nozzle (5) connected to said outlet (9). A connection (13) to the spray nozzle (5) extends essentially parallel to said filter element (3) and the spray nozzle (5) includes an angled redirecting channel (14) for distribution of cleaning liquid in a direction towards the filter cloth (4) of said filter element (3). A plurality of spray nozzles (5) are arranged in pairs around the flush tube (6) and with their respective outlet openings (8) located at a distance from the respective filter element (3), which is larger than half the spacing between two adjacent parallel filter elements (3).
    Type: Application
    Filed: October 7, 2011
    Publication date: August 22, 2013
    Applicant: Veolia Water Solutions & Technologies Support
    Inventor: Per Larsson
  • Publication number: 20130206674
    Abstract: 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.
    Type: Application
    Filed: August 19, 2011
    Publication date: August 15, 2013
    Applicant: TROJAN TECHNOLOGIES
    Inventors: Jim Fraser, Ronald P. Cook, Glen E. Latimer, JR.
  • Publication number: 20130186820
    Abstract: An innovative fiber-wound filtration system for use with spiral-trajectory type cleaning systems.
    Type: Application
    Filed: October 3, 2011
    Publication date: July 25, 2013
    Inventor: Ron Tal
  • Publication number: 20130168332
    Abstract: A filter apparatus for removing contaminants from a fluid and having an internal chamber with an adjustable volume is provided. Filter media priming to dislodge trapped gas is facilitated by the filter apparatus. A method of priming a filter cartridge containing a filter media is also provided.
    Type: Application
    Filed: December 30, 2012
    Publication date: July 4, 2013
    Applicant: DELCATH SYSTEMS, INC.
    Inventor: Delcath Systems, Inc.
  • Publication number: 20130075322
    Abstract: 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.
    Type: Application
    Filed: September 26, 2012
    Publication date: March 28, 2013
    Inventor: YUNG-CHUAN LEE WANG
  • Patent number: 8388836
    Abstract: A waste separator apparatus is provided. The apparatus includes a first screen assembly for screening fluids from a waste stream where the first screen assembly defining an enclosure. A second screen assembly is provided for screening fluids from the waste stream and is disposed closely spaced-apart within the enclosure of the first screen assembly. A waste stream pathway is defined between the first screen assembly and the second screen assembly. A first separated fluids stream pathway is defined outwardly of the first screen assembly. A second separated fluids stream pathway is defined inwardly of the second screen assembly. One or more blades extends inwardly from the first screen assembly or outwardly from the second screen assembly for advancing the waste stream through the waste stream pathway. A related system is also provided.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: March 5, 2013
    Assignee: Emerald Waste Solutions, LLC
    Inventors: Lewis Morris Fetterman, III, Durwood Nelson Renfrow, James Eulen Sinclair, Jr., Angela Denise Schroeder, Claude Decator Pyatte, Jr.
  • Publication number: 20130048560
    Abstract: A guide member for directing gas bubble flow along a membrane surface, the guide member having first and second side edges defining a channel for gas bubbles to flow along, the channel having an open bottom end through which the gas bubbles can enter the channel and an open top end through which the bubbles can exit the channel, and a diverting means adjacent the channel bottom end arranged to direct at least some of the incident gas bubbles in a first direction towards the channel bottom end. A membrane module assembly and a membrane filter system including the guide member.
    Type: Application
    Filed: March 23, 2011
    Publication date: February 28, 2013
    Applicant: BIONEST TECHNOLOGIES INC.
    Inventor: Garfield R. Lord
  • Patent number: 8366928
    Abstract: A filter (20) configured to separate the solid components and the liquid components from a slurry. The filter (20) includes a plurality of filter plate assemblies (46) that cooperate to define a plurality of filter chambers (70), each defining a perimeter (96) having an open section (98) when the filter plates (68) are in a closed position relative to one another. Each filter plate assembly (46) includes a closure (104) configured to close the open section (*). Preferably, the closures (104) are movable to an open position to permit a particulate cake to be removed from the filter chambers (70) without separating the filter plates (68).
    Type: Grant
    Filed: March 4, 2005
    Date of Patent: February 5, 2013
    Inventor: Sean R. Duby
  • Publication number: 20130020245
    Abstract: A waste liquid treatment apparatus with enhanced treatment capacity for a pre-treatment facility of a liquid radwaste treatment system for a nuclear power plant. The waste liquid treatment apparatus includes: a water tank into which a waste liquid is introduced and from which filtered permeated water is discharged; a waste liquid introduction section through which waste liquid is introduced into the water tank; submerged membranes annularly disposed and spaced apart from each other for filtering foreign substances from the waste liquid; a permeated water suctioning section suctioning the filtered water of the waste liquid and discharging the filtered water outside the water tank; an air supplying section supplying compressed air to the submerged membranes to remove foreign substances; and a porous support plate supporting the submerged membranes.
    Type: Application
    Filed: July 18, 2011
    Publication date: January 24, 2013
    Applicant: KOREA HYDRO & NUCLEAR POWER CO., LTD.
    Inventors: Hang Rae Cho, Ho Yeon Yang, Ji Hoon Lee, Tae Won Hwang, Young Bu Choi
  • Publication number: 20120285885
    Abstract: Aspects and embodiments of the present application are direction to systems and methods for treating fluids and to systems and methods for cleaning membrane modules used in the treatment of fluids. Disclosed herein is a membrane filtration system and a method of operating same. The membrane filtration system comprises a plurality of membrane modules positioned in a feed tank, at least one of the membrane modules having a gas slug generator positioned below a lower header thereof, the gas slug generator configured and arranged to deliver a gas slug along surfaces of membranes within the at least one of the membrane modules. The membrane filtration system may further comprise a global aeration system configured to operate independently from an aeration system providing a gas to the gas slug generator. The global aeration system may be configured and arranged to induce a global circulatory flow of fluid throughout the feed tank.
    Type: Application
    Filed: February 14, 2012
    Publication date: November 15, 2012
    Applicant: SIEMENS INDUSTRY, INC.
    Inventors: Gerin James, Roger Phelps, Peter Zauner, Fufang Zha, Joseph Edward Zuback, Edward John Jordan, Wenjun Liu
  • Patent number: 8287741
    Abstract: A filter configured to separate the solid components and the liquid components from a slurry. The filter includes a plurality of filter plate assemblies that cooperate to define a plurality of filter chambers, each defining a perimeter having an open section when the filter plates are in a closed position relative to one another. Each filter plate assembly includes a closure configured to close the open section. Preferably, the closures are movable to an open position to permit a particulate cake to be removed from the filter chambers without separating the filter plates.
    Type: Grant
    Filed: August 15, 2011
    Date of Patent: October 16, 2012
    Inventor: Sean R. Duby
  • Patent number: 8277656
    Abstract: The filter device is provided with a housing (1) and with a stack of filter plates (10, 11) arranged therein at a spacing from one another. The housing includes an inlet (7) for the fluid to be filtered, an outlet (9) for the filtrate which is connected in a conducting manner to the inside of the filter plates (10, 11), and a cavity extending through the stack and formed by recesses in the filter plates (10, 11). The filter plate stack is arranged fixed to the housing, and a centrifugal pump (14) with several impellers (15) is arranged within the filter plate stack. This pump ensures an intensive through-flow of the filter plate stack and thus a removal of the filter residues.
    Type: Grant
    Filed: May 17, 2008
    Date of Patent: October 2, 2012
    Assignee: Grundfos Management A/S
    Inventor: Christian Rasmussen
  • Patent number: 8221618
    Abstract: An apparatus, system, and method for removing sediment from water is disclosed. According to one embodiment of the present invention, the apparatus includes a tubular filter assembly comprising a support member; and a filtratable element surrounding the support member, the filtratable element comprising a backing mesh; and a fibrous batting. A system for removing sediment from water is disclosed. According to one embodiment, the system includes a filter chamber to receive a liquid having suspended particles therein; at least one filtration cartridge housed within the filter chamber, wherein the filtration cartridge comprises at least one elongated filtratable element, each filtratable element comprising a support member, and a filtratable media adapted to surround the inner core. A method for removing sediment from water is disclosed.
    Type: Grant
    Filed: August 15, 2007
    Date of Patent: July 17, 2012
    Assignee: Monteco Ltd.
    Inventors: Christopher Adam Murray, Darren Francis Kevin Lawless
  • Publication number: 20120160783
    Abstract: The water filtration device and method introduce raw water into a filtration barrel where the water is purified by filter elements inside the filtration barrel. A main frame is set up in the filtration barrel and a driving motor is mounted on the main frame. The driving motor engages a holding rack inside the main frame to spin at high speed. Filter elements are stacked and interleaved on the holding rack. When the filter elements require cleaning to remove the attached contaminants from the raw water, filter elements are rotated at high speed along with the holding rack so that the contaminants are thrown off by the centrifugal force. When the filter elements are cleaned, the high-speed rotation of the filter elements could be stopped and the filtration process could be continued or terminated.
    Type: Application
    Filed: December 27, 2010
    Publication date: June 28, 2012
    Inventor: CHUN-MIN LIU
  • Publication number: 20120145609
    Abstract: Filter assemblies and fluid flow inhibitors that are particularly well suited for use in centrifugal separation enhanced filtration devices are described. Moreover extensible filter assemblies are described. In one aspect of the invention, extensible filtration assemblies can be used to operate in circulating fluid filtration devices. Such extensible filter elements can use fluid manifold to reduce the effects of fluid circulation inside filter elements and to reduce reverse flow problems in such filters. Additionally, indexable filter elements and invertable filtration elements can be used to extend filter life in filtration in filtration devices.
    Type: Application
    Filed: December 8, 2011
    Publication date: June 14, 2012
    Applicant: CLEAN FILTRATION TECHNOLOGIES, INC.
    Inventors: George D. Caffell, Steven E. O'Reilly, John H. Mallard
  • Patent number: 8192617
    Abstract: Treatment of contaminated liquid is provided including an integrated ultra-filtration and clarification apparatus. Clarification of liquid occurs in a gap between a casing and a tank of the apparatus. Solids settle and aggregate in the bottom of the tank. The solids act as a secondary filter prior to contact of the liquid with the ultra-filtration filters. Clarified liquid is drawn through the ultra-filtration filters. An upstream electrocoagulation unit and a downstream reverse osmosis unit may be included in combination. Electrocoagulation can occur in the tank by reaction plates mounted within the tank. One embodiment includes dual integrated ultra-filtration and clarifier apparatuses and corresponding electrocoagulation units.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: June 5, 2012
    Inventor: Scott W. Powell
  • Patent number: 8192624
    Abstract: The invention relates to a filtering apparatus in which improvement of maintenance of a driving system, reduction of the number of components, and ease of assembly are achieved.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: June 5, 2012
    Assignee: Tsukishima Kikai Co., Ltd.
    Inventors: Dai Takao, Motomi Ono, Kotaro Neo
  • Patent number: 8177975
    Abstract: An apparatus removes air or debris from a flow of liquid. The apparatus includes a shell having an inlet, an outlet, and an elongate inner cavity in fluid communication with each of the inlet and the outlet. A plurality of elongate coalescing medium assemblies are disposed within the cavity of the shell such that the coalescing medium assemblies are oriented substantially parallel to each other. Each coalescing medium assembly includes a plurality of wire mesh tubes oriented substantially parallel to each other. A wire mesh retaining wall substantially surrounds the tubes and holds the tubes together.
    Type: Grant
    Filed: January 21, 2004
    Date of Patent: May 15, 2012
    Assignee: Thrush Co., Inc
    Inventor: Aaron Schipper
  • Patent number: 8177073
    Abstract: A quickly cleanable water processor includes a shell, a water pipe, at least one filtering unit and a cleaning unit. The shell includes a space defined therein, a water inlet, a water outlet and an air inlet. The water inlet and outlet and the air inlet and outlet are in communication with the space. The water pipe is disposed in the shell and made with slots in communication with the water inlet. The filtering unit is detachably provided around the water pipe. The filtering unit includes alternately arranged membrane bags and water-guiding discs. The cleaning unit includes an air pump and an air pipe extended into the shell from the air pump through the air inlet. The air pipe includes apertures through which air reaches the membrane bags from the air pipe.
    Type: Grant
    Filed: August 14, 2009
    Date of Patent: May 15, 2012
    Assignee: New Century Membrane Technology Co., Ltd.
    Inventor: Chi-Chang Kuo
  • Publication number: 20120018360
    Abstract: A fluid strainer device is disclosed. The device includes a housing which defines an open chamber, the chamber having both at least one fluid input port and at least one fluid outlet port. A plurality of spaced strainer baskets are disposed within the chamber. Each basket has a pair of spaced perforated side panels, a perforated rear panel, a perforated top panel and an open front portion in fluid communication with the chamber fluid input port. Finally, each strainer basket is aligned within the chamber for fluid flow from the chamber input port into the basket's open front portion and out through the perforations thereof to filter debris from the fluid while preventing substantial fluid pressure drop between the input and outlet ports substantially independent of debris buildup within the basket.
    Type: Application
    Filed: September 29, 2011
    Publication date: January 26, 2012
    Applicant: Wayne J. Kraft
    Inventor: Wayne KRAFT
  • Patent number: 8025156
    Abstract: A vertical cylindrical dewatering apparatus for dewatering fibrous slurries, slurry of manure and water, or other similar slurries. The apparatus includes a housing that includes a defined chamber having an enclosed top end with a slurry injector into the chamber, a centrally disposed first filtering element that includes first and second flightings, and a second vertical cylindrical filtering element including a support grid. The first and second filtering elements define the chamber. The slurry in-flow port at the top of the apparatus directs the slurry spiraling down between the flightings. The particles start building up at the bottom of the chamber as the water is filtered out from the housing through filtrate drains. Compressed air supplied through a rotating seal down through the centrally disposed filtering element moves through the filter, and through the particles forcing the water from between the particles out through the outer filter element.
    Type: Grant
    Filed: June 14, 2010
    Date of Patent: September 27, 2011
    Inventor: Floyd G. Tapp
  • Publication number: 20110229618
    Abstract: An object of the present invention is to provide a brewed liquid filtering system which is capable of reducing a production cost and which has a structure suitable for cleaning of a filter. A brewed liquid filtering system 1 of the present invention has a first branching pipe and a second branching pipe. The first branching pipe and the second branching pipe are provided with a first filter and a second filter, respectively. The first branching pipe is provided with first branching pipe valves V1-1 and V1-2 arranged so that the first filter is interposed therebetween, and connected to first cleaning pipes 10-31 and 10-32 which are arranged closer to the first filter than the first branching pipe valves V1-1 and V1-2.
    Type: Application
    Filed: November 11, 2009
    Publication date: September 22, 2011
    Inventors: Tadahiro Ohmi, Hisayoshi Kobayashi
  • Patent number: 8002994
    Abstract: The present invention relates to a method of treating lime mud slurry being generated in a causticizing process in a pulp mill in a disc filter, in which method the lime mud is fed in the filter, thickened on the filter discs and removed from the filter discs. The lime mud is treated in at least two stages in one and the same disc filter in such a way that the lime mud slurry entering the filter is fed onto only a part of the filter discs, on which lime mud is thickened and removed from the discs, and the removed lime mud is re-slurried in liquid, and the lime mud slurry thus obtained is fed onto a second part of the filter discs, on which lime mud is thickened and removed from the filter and led into a subsequent process stage. The invention also relates to an apparatus.
    Type: Grant
    Filed: November 24, 2005
    Date of Patent: August 23, 2011
    Assignee: Andritz Oy
    Inventors: Holger Engdahl, Jouni Jäntti, Markku Lankinen, Antti Mattelmäki, Simo Suutari, Mika Kottila
  • Publication number: 20110198237
    Abstract: Treatment of contaminated liquid is provided including an integrated ultra-filtration and clarification apparatus. Clarification of liquid occurs in a gap between a casing and a tank of the apparatus. Solids settle and aggregate in the bottom of the tank. The solids act as a secondary filter prior to contact of the liquid with the ultra-filtration filters. Clarified liquid is drawn through the ultra-filtration filters. An upstream electrocoagulation unit and a downstream reverse osmosis unit may be included in combination. Electrocoagulation can occur in the tank by reaction plates mounted within the tank. One embodiment includes dual integrated ultra-filtration and clarifier apparatuses and corresponding electrocoagulation units.
    Type: Application
    Filed: April 25, 2011
    Publication date: August 18, 2011
    Inventor: Scott W. POWELL
  • Patent number: 7998354
    Abstract: A filter configured to separate the solid components and the liquid components from a slurry. The filter includes a plurality of filter plate assemblies that cooperate to define a plurality of filter chambers, each defining a perimeter having an open section when the filter plates are in a closed position relative to one another. Each filter plate assembly includes a closure configured to close the open section. Preferably, the closures are movable to an open position to permit a particulate cake to be removed from the filter chambers without separating the filter plates.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: August 16, 2011
    Inventor: Sean R. Duby
  • Patent number: 7993517
    Abstract: An automatically cleaned filter comprises a motor; a base above the motor; the base being formed with at least one filter seat, a water inlet, a water draining hole and an annular groove; at least one filter core installed on a respective one of the filter seat; the filtering material being formed on an outer side of the filter core; a cleaning unit installed on a center portion of the base; a bottom of the cleaning unit being connected to the spindle; a gear being installed at an upper side of the base and being engaged to the spindle; an upper cover combined to the base by using at least one supporting posts; a lower side of each filter core being installed with a gear; and the gear at the lower side of the filter core being engaged to the gear of the cleaning unit.
    Type: Grant
    Filed: January 4, 2010
    Date of Patent: August 9, 2011
    Inventor: Tsung-Hui Lee
  • Patent number: 7964094
    Abstract: A solvent filtration and recovery system for filtration and recovery of a solvent-based liquid used in dry cleaning includes filtration tank having filter chamber with motor-driven spin filters which are selectively operated. A valve and conduit arrangement allows the liquid from dry cleaning to enter the filter chamber for filtering and flows out as filtered liquid while the spin filters are not rotating. The arrangement allows initial at least partial draining of the solvent-based liquid in the filter chamber after such filtration procedure. A recovery tank is in communication with the filtration tank through a main drain. A motor drives the spin filters during a recovery procedure, in which centrifugal force caused by the rotating spin filters for a predetermined amount of time removes by-product from the spin filters, which is drained off from the filtration tank. A reservoir stores the solvent-based liquid and receives the liquid from both the recovery tank and the filtration tank.
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: June 21, 2011
    Assignee: Jim's Formal Wear Co.
    Inventors: Todd Sudholt, Daniel Sims
  • Publication number: 20110089100
    Abstract: Self-cleaning filter for liquids with a basic element consisting of one cyclic elastic membrane 17 which covers completely the rims of a stable cavity 16. The rims of the cavity bear engraved shallow channels 25, while its concave part and bottom, bears great openings (26, 28). During the operation phase, the water passes under the membrane 17 and the shallow channels 25 of the cavity 16, leaves at the periphery of the rims or inside the channels the derbies 27 and through the openings 26 and 28 of the concave part and the bottom, comes out clean to the network 15 of the cleaned water. The water passing through the shallow channels 25, is subjected to a pressure loss with the result the membrane 17 to be significant bent, due to the pressure differences, and to be inserted sliding in to the cavity 16. By each interruption of the filter's operation, the membrane 17 returns in to its plan position scrapping and rejecting the derbies 27.
    Type: Application
    Filed: June 24, 2009
    Publication date: April 21, 2011
    Inventors: Emmanuil Dermitzakis, Aristeidis Dermitzakis
  • Publication number: 20110062070
    Abstract: An apparatus for the treatment of wastewater, particularly wastewater originating from a process for the production of photovoltaic cells, comprising: a first line for the treatment of wastewater originating from the process, with a high level of acidity, a second line for the treatment of wastewater with a low level of acidity, a third line for the treatment of wastewater with a very low level of acidity, a fourth line for the treatment of alkaline wastewater, the wastewater that exits from the second line and the third line being adapted to be sent to a purification line designed for filtering, obtaining pure water and ultrapure water, ready to be reused in the same production process.
    Type: Application
    Filed: May 14, 2009
    Publication date: March 17, 2011
    Inventors: Ferdinando Martini, Gianluca Castelli, Franco Traverso, Andrea Ragni