Rotary Movement Of Filter Or Mechanical Cleaner Patents (Class 210/107)
  • Patent number: 10124280
    Abstract: A laminated filter comprises a housing inner sleeve filter element and head cover covering the housing, the housing having an inlet and a second outlet. An inner bottom face of the housing has a sealing ring, a bottom end of the inner sleeve being disposed between the sealing ring and an inner side of the housing, and a top end of the inner sleeve being disposed in the head cover. A bottom end of the filter element is disposed at an inner side of the sealing ring, and a top end of the filter element is disposed in the head cover. A gap communicating with the inlet is formed between the inner sleeve and housing. The top end of the inner sleeve has first filtrate openings, and the top end of the filter element has first and second baffle structures, the second baffle structures having second filtrate openings.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: November 13, 2018
    Assignee: Guangdong Liansu Technology Industrial Co., Ltd.
    Inventors: Hongbin Huang, Jiyue Yang, Guangping Huang
  • Patent number: 10070629
    Abstract: A water circulation pump pre-filter unit (PFU). The PFU is submerged and provides structure to camouflage the system to give a natural and aesthetic look. The PFU comprises at least two cleaning systems: (1) biological cleaning mechanism; and (2) an internal self-cleaning mechanism. Specifically, the PFU comprises several filtering surfaces that form a repository for pond debris on which fish and other aquatic creatures feed, i.e., the biological cleaning mechanism. These filtering surfaces of the PFU also provide a protective barrier that prevents large debris from entering the circulation pump. The internal self-cleaning mechanism is a spray wash water source mechanism used to clean the PFU without removing the PFU or fish from the pond or entering the water. Together these features improve the quality of the water in the pond and extend the life of a pump.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: September 11, 2018
    Inventor: Stephen D. Roche
  • Patent number: 10065355
    Abstract: A method and an apparatus for operating a screening wheel filter for high-viscosity melts with pressures of >10 bar and temperatures of >90° C., wherein a screening wheel (1) is rotationally driven step by step, and screening inserts (2) arranged in the screening wheel (1) are successively subjected to a stream of cleaning agent produced by a cleaning agent drive (9) in a backflushing cleaning station, are to be optimized in such a way that less cleaning agent is used, better cleaning of the screening inserts takes place and a saving of energy is ensured.
    Type: Grant
    Filed: May 5, 2014
    Date of Patent: September 4, 2018
    Assignee: GNEUSS GMBH
    Inventors: Detlef Gneuss, Stephan Gneuss, Daniel Gneuss
  • Patent number: 10052577
    Abstract: A self-cleaning oil filter housing is disclosed. The self-cleaning oil filter housing includes a hollow elongated body. The hollow elongated body has a central axis and a transverse axis perpendicular to the central axis. The self-cleaning oil filter housing includes a first flange provided on an outer surface of the hollow elongated body. The first flange has a first through hole along a first tangential direction. The self-cleaning oil filter housing includes a second flange provided on the outer surface of the hollow elongated body. The second flange has a second through hole along a second tangential direction. An angle between the first tangential direction and the second tangential direction is pre-determined. The self-cleaning oil filter housing includes a rib portion extending between the first flange and the second flange.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: August 21, 2018
    Assignee: Caterpillar Inc.
    Inventors: Daniel S. Brandt, Colin A. Hawkins, Viorel Petrariu, Douglas E. Davis
  • Patent number: 10035086
    Abstract: A filter cartridge for use within a filter housing of a filter assembly that includes a filter media, a first endplate attached to a first end of the filter media, and a second endplate attached to a second end of the filter media. The second endplate includes a plurality of extensions extending axially away from a surface of the second endplate. The plurality of extensions possess a toothed profile and are sized and positioned so as to engage with at least one rib associated with a portion of the filter housing such that, when at least one of the plurality of extensions is engaged with the at least one rib, a rotation of the portion of the filter housing in a first direction results in a corresponding rotation of the filter cartridge.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: July 31, 2018
    Assignee: CUMMINS FILTRATION IP, INC.
    Inventors: Priti V. Chavan, Jayant Singh, Wassem Abdalla, Santosh R. Kharat, Anil I. Sawant
  • Patent number: 10035085
    Abstract: A backflush filter for liquid media, having a filter housing formed by supporting cage(s) having at least two groups of apertures, and a filtering means supported on the supporting cage, the apertures of each group extend in parallel and are separated by ribs, and having a backflushing device arranged in the interior of the filter insert, is rotatable and has a slit, the backflushing device for flushing the filtering means via the slit and apertures, the direction of the backflushing device being reversible during the backflush cycle, the backflushing device having at least two separated flushing chambers having a corresponding slit, and also a hollow shaft, capable of limited rotary motion relative to the flushing chambers, which shaft having first and second radial outlets, the direction of the backflushing device being reversible during backflushing, and driving means for movement of the flushing chambers and the hollow shaft, are provided for both directions of motion.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: July 31, 2018
    Assignee: BOLL & KIRCHFIL TERBAU GMBH
    Inventors: Karsten Cartarius, Andreas Finsel, Willi Rott
  • Patent number: 9884348
    Abstract: A cleaning system that includes a meter operatively connected to a cleaning device, and where the flow of waste water activates the cleaning device, and which device removes contaminates from the meter.
    Type: Grant
    Filed: June 30, 2013
    Date of Patent: February 6, 2018
    Assignee: Xerox Corporation
    Inventors: Rodolfo E Valladares, Suyana Villarroel, David B Montfort
  • Patent number: 9669335
    Abstract: A filter apparatus including: a casing including, in a sealed space provided therein, a fluid inflow chamber, a filtration chamber and a drain chamber; a filter element provided inside the filtration chamber to let a fluid pass therethrough from inside to outside to perform filtration; a backwash slide member movably provided inside the filter element and removing trapped matter adhering to an inner circumferential surface of the filter element by an inward flow generated by a difference in pressure inside and outside the filter element at the time of backwashing; a backwash pipe that lets the inward flow flow toward the drain chamber; an actuation cylinder that lets the fluid from the backwash pipe flow toward the drain chamber; and a fluid flowing unit allowing a fluid to flow, enabling a piston member to move inside the actuation cylinder.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: June 6, 2017
    Assignee: Fuji Filter Manufacturing Co., Ltd.
    Inventor: Yuichi Takahashi
  • Patent number: 9511310
    Abstract: A filter disposed as a cylinder around an axis line, and provided to be rotatable around the axis line, a treated water nozzle for emitting treated water toward an outer circumferential surface of the filter, a case provided to surround the filter, and including an outer cylindrical portion having a nozzle opening of the treated water nozzle therein, a filtered water flow path for guiding filtered water that has been transmitted through the filter to outside of the case from within the cylinder of the filter, and a discharge flow path for discharging discharged water that was not filtered through the filter to the outside of the case are provided.
    Type: Grant
    Filed: February 16, 2011
    Date of Patent: December 6, 2016
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Munetsugu Ueyama, Ryusuke Nakai, Hideki Kashihara, Manabu Okui
  • Patent number: 9465323
    Abstract: According to an example, a liquid electrophotography printing (LEP) apparatus includes a fluid chamber to store fluid to be used to form an image and a filtration assembly to filter the fluid of the fluid chamber. The filtration assembly may store a filtration material to filter the fluid received from the fluid chamber and may provide the filtered fluid to the fluid chamber. The LEP apparatus may also include a detector assembly to detect a fluid parameter of the filtered fluid in the fluid chamber and a filtration adder unit to add a predetermined amount of the filtration material to the filtration assembly in response to a detection of the fluid parameter by the detector assembly.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: October 11, 2016
    Assignee: Hewlett-Packard Indigo B.V.
    Inventors: Eyal Bachar, Kobi Shkuri, Elliad Silcoff, Yoram Sorek, Yossi Cohen, Nava Klein, Doron Schlumm
  • Patent number: 9327219
    Abstract: A spiral irrigation filter cleaning apparatus includes a filter framework having a tubular wall defining a plurality of apertures, the filter framework having a platform extending outwardly from the lower end. A filter media is constructed of a flexible and permeable material configured to wrap around the filter framework. The cleaning apparatus includes a cleaning assembly configured to surround the filter framework. The cleaning assembly includes an upper ring and an opposed lower ring, the lower ring configured to rest freely upon the platform. The cleaning assembly further includes a plurality of spaced apart scraping members each having an upper end coupled to the upper ring and a lower end coupled to the lower ring and extending in a spiral configuration. A plurality of turbine blades is coupled to an outer surface of the upper ring to urge the cleaning assembly to rotate when contacted by a water stream.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: May 3, 2016
    Inventor: James J. Brunswick
  • Patent number: 9211489
    Abstract: A filter module according to the present invention comprises a housing having an inlet and an outlet, said housing enclosing a tubular, elongate filter element defining a longitudinal axis and a cleaning head connected by means of a conduit to a coaxially arranged and rotatably mounted pipe, said cleaning head being resiliently biased towards the internal surface of said tubular, elongate filter element. Moreover, said cleaning head has an opening of adjustable size facing said internal surface of said filter element and providing fluid communication between the interior of said housing and the interior of said pipe. The filter module further comprises means for creating a pressure difference between the interior of said housing and the interior of said pipe so as to cause a fluid flow from the interior of said housing to the interior of said pipe as well as means for effecting a rotation of said pipe.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: December 15, 2015
    Assignee: GEA WESTFALIA SEPARATOR GROUP GMBH
    Inventor: Wilfried Riggers
  • Patent number: 9101940
    Abstract: In a method for separating magnetizable particles from a suspension, the suspension is passed through a cylinder-symmetrical separator wherein the substance streams are separated by at least one tubular separation screen. The separator separates the substance stream into a concentrate as well as a so-called tailing and the control of the separation rate of the concentrate and tailing is carried out solely by controlling the flow rate. To this end, at least one separation screen (11, 21) is displaceable in the separator (10, 20), so that a variable gap (15, 25) is formed.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: August 11, 2015
    Assignees: SIEMENS AKTIENGESELLSCHAFT, BASF SE
    Inventors: Werner Hartmann, Wolfgang Krieglstein
  • Patent number: 9063107
    Abstract: A rinsing and drying apparatus of a clinical analyzer probe drain station is provided. The rinsing and drying apparatus has a group of nozzles that are offset from a longitudinal axis of a probe passage and may be inclined and oriented to provide tangentially oriented fluid-jet trajectories exiting into the sample probe passage. The offset nozzles, nozzle orientation, and cavity geometrical features of the device permit the drying capacity of probe-impinging planar air-knife jets to be maximized by stabilizing local internal fluid movement to form a swirling (e.g., helical) gas flow field directed away from a drying region and toward a vacuum exhaust. The rinsing and drying apparatus eliminates rinse water re-circulated entrainment and up-wash (spitting) during the air-knife drying operation. Therefore, the rinsing and drying apparatus significantly reduces water carryout on sampling probes thereby reducing sample/reagent dilution.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: June 23, 2015
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventors: Raymond Waterbury, Antoine Elias Haddad, John Paul Mizzer
  • Patent number: 9017555
    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: Grant
    Filed: July 18, 2011
    Date of Patent: April 28, 2015
    Assignee: Korea Hydro & Nuclear Power Co., Ltd.
    Inventors: Hang Rae Cho, Ho Yeon Yang, Ji Hoon Lee, Tae Won Hwang, Young Bu Choi
  • Patent number: 8968558
    Abstract: The system of the present disclosure enables a filter cartridge having an array of filter media tubes to be remotely selectively back flushed during service by sequentially flushing the tubes with the rotary valving element to permit removal of trapped filtered material in service without disrupting the filtering flow in the balance of the filter array.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: March 3, 2015
    Assignee: Eaton Corporation
    Inventors: Michael Edward Isch, Michael Roland Clements, Craig James Annable, Jason Robert Swinehart, David Lee Truman
  • Patent number: 8968580
    Abstract: A pumpbox apparatus includes a reservoir volume having a first inlet for receiving a feedstock stream and a second inlet for receiving a water stream, the reservoir volume being in communication with a discharge outlet disposed to discharge accumulated liquid from the reservoir volume. The reservoir volume is operable to accumulate the feedstock stream and the water stream in the reservoir volume while withdrawing a discharge stream through the discharge outlet to cause a flow of liquid through the pumpbox. The first inlet defines a first flow velocity region between the first inlet and the second inlet and a second flow velocity region between the second inlet and the discharge outlet. The first flow velocity is lower than the second flow velocity to facilitate flotation of a low specific gravity portion of the feedstock through the first region toward an upper surface of the liquid accumulated in the reservoir volume.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: March 3, 2015
    Assignee: Suncor Energy Inc.
    Inventors: Thomas Charles Hann, William Nicholas Garner
  • Patent number: 8960450
    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: Grant
    Filed: December 8, 2011
    Date of Patent: February 24, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: George D. Caffell, Steven E. O'Reilly, John H. Mallard
  • Patent number: 8926843
    Abstract: A disc filter is provided having a controller for controlling effluent surges that are produced by the disc filter. The method entails sensing one or more process variables that are a function of the effluent, and based at least in part on the sensed process variables, the disc filter controls the flow of effluent in order to control or minimize effluent surges.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: January 6, 2015
    Assignee: Veolia Water Solutions & Technologies Support
    Inventors: Michael Baker, Matt Stalter, Luke Wood, Mark Stewart
  • Publication number: 20140332473
    Abstract: A method and system for treating oilfield produced water is disclosed. The method includes passing oilfield produced water through a chain of filters, first filter configured to filter particles of a size larger than 10 ?m from the water, a second filter configured to filter remaining particles of a size larger than 2 ?m from the water and a third filter configured to filter remaining particles of a size larger than 0.5 ?m from the water and automatically cleaning at least one of the filters.
    Type: Application
    Filed: May 6, 2014
    Publication date: November 13, 2014
    Applicant: Nirosoft Industries Ltd.
    Inventors: Assaf HABERMAN, Ravid LEVY
  • Patent number: 8882999
    Abstract: Cleaning assemblies and particulate tolerant fluid bearings that are particularly well suited for use in centrifugal separation enhanced filtration devices are described. In one aspect of the invention, at least one bearing is arranged to carry a circulating cleaning assembly such that the cleaning assembly can rotate around a filter membrane during filtering operation of the filtration device. The bearing is preferably arranged to maintain the circulating cleaning assembly in a substantially coaxial alignment with the filter membrane and in a substantially stable longitudinal position relative to the filter membrane as the circulating cleaning assembly is rotated around the filter membrane. In another aspect of the invention a variety of particulate tolerant bearings are described.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: November 11, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: David J. Levitt, George D. Caffell, John H. Mallard, Steven E. O'Reilly
  • Patent number: 8821720
    Abstract: Disclosed herein is a filtering apparatus for treating ballast water. The apparatus is constructed so that a housing cover plate and an exhaust unit are removably coupled to each other at an upper position of a housing. The exhaust unit includes a base flange on a portion thereof coupled to the housing cover plate and the base flange includes a projecting step that projects to be inserted into a core through hole formed in the housing cover plate. A core serving as a discharge passage of foreign substances includes a shaft coupling unit on a portion thereof coupled to the driving shaft, and is coupled at the shaft coupling unit to the driving shaft via a coupling structure. The outer diameters of the coupling structure and the shaft coupling unit are formed to be smaller than the outer diameter of the core.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: September 2, 2014
    Assignee: Panasia Co., Ltd.
    Inventors: Soo-Tae Lee, Tae-Sung Pyo, Su-Kyu Lee
  • Publication number: 20140124461
    Abstract: A rotary disc filter is provided with a system for inhibiting biological fouling from biological growth on filters that form a part of the rotary disc filter. A biocide is pumped from a biocide supply tank to a manifold and mixed with a backwash to form a backwash-biocide solution. The backwash-biocide solution is sprayed onto filter media during a backwashing operation and the presence of the biocide inhibits and eliminates biological growth on the filter media.
    Type: Application
    Filed: November 7, 2012
    Publication date: May 8, 2014
    Applicant: VEOLIA WATER SOLUTIONS & TECHNOLOGIES SUPPORT
    Inventors: Herve Buisson, Pille Kangsepp, Rune Strube, Janne Olavi Vaananen
  • Patent number: 8714167
    Abstract: A dishwasher is provided that effectively cleans a filter. The dishwasher may include a rack positioned in a washing space and at least one nozzle that directs washing fluid into the washing space, a sump that receives washing fluid to be supplied to the washing space, and a filter device provided in the sump, including a first filter and a second filter. A driver rotates the first filter or the second filter so as to separate foreign materials from the filter device and prevent the filter device from clogging.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: May 6, 2014
    Assignee: LG Electronics Inc.
    Inventors: Sangheon Yoon, Moonkee Chung
  • Patent number: 8701896
    Abstract: A variety of improved hydroclone based fluid filtering systems are described. The hydroclones generally include a tank having an internal chamber and a filter (preferably a surface filter) that is positioned within the internal chamber. The filter defines a filtered fluid chamber within the internal chamber of the tank. The hydroclone may be operated such that a vortex of flowing fluid is formed between the chamber wall and the filter with the filter being located in the center of the vortex. With this arrangement, the filter acts as a cross-flow filter. In one aspect of the invention, a circulating cleaning assembly is provided in the hydroclone region. In yet another aspect of the invention, improved hydroclone intake structures are described.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: April 22, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: David J. Levitt, Frank Dutro
  • Patent number: 8663474
    Abstract: A non-blocking filtration system wherein the suspension filtered continuously scrubs the filter, keeping it free of deposits of solid deposits while the filtrate is removed in a variety of biological and chemical applications, substantially reducing the cost of unit operations.
    Type: Grant
    Filed: April 3, 2013
    Date of Patent: March 4, 2014
    Assignee: Therapeutic Proteins International, LLC
    Inventor: Sarfaraz K. Niazi
  • Patent number: 8608955
    Abstract: An automatic strainer assembly for straining a slurry comprises an inlet for receiving the slurry, a horizontally disposed strainer body in fluid communication with the inlet, and a rotatable strainer member received within the body having an inner surface and an outer surface. One or more scrapers are positioned for removing material from the outer surface of the strainer assembly. A collection vessel is positioned substantially below the body for receiving material scraped from the outer surface of the strainer member. A transport member can be provided for returning the scraped material to the slurry supply for reprocessing thereof. An outlet expels the strained slurry. A manual or automatic washdown system is provided for removing the slurry from the strainer member. A radial bearing assembly and radial seal are associated with the drive shaft of the strainer member to prevent galling. A method for processing a slurry is provided.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: December 17, 2013
    Assignee: TM Industrial Supply, Inc.
    Inventors: Carl A. Steiner, Yousif A. Khalid Al-Abdullah, Ricky L. Jackson
  • 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
  • Patent number: 8525126
    Abstract: The present invention relates to a UV fluid sterilizer, which is suitably formed to sterilize fluid having poor UV transmission. According to the present invention, the UV fluid sterilizer includes a plurality of UV sterilization units.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: September 3, 2013
    Inventors: Sung Chul Lee, Jin Auck Kim, Yu Sup Kim
  • Publication number: 20130161242
    Abstract: A seal is brought into contact with a filter media, a filter pump is operated to start filtration, and a signal from a pressure sensor is received. When a predetermined value is exceeded by the signal from the pressure sensor, the filter pump is stopped, the seal is separated from the filter media, and take-up of one section of the filter by a filter collection roll is started. In finishing filter supply from a filter supply roll, drive of a motor is stopped, and an alarm signal is transmitted. If the supply is not to be finished, one section of the filter is taken up by the filter collection roll, and the next stage of filtration is entered.
    Type: Application
    Filed: September 13, 2012
    Publication date: June 27, 2013
    Applicant: FANUC CORPORATION
    Inventor: Hirotsugu KASAI
  • Patent number: 8444851
    Abstract: The system is for the reception and transport of dry lime mud from a continuously operating pressurized filter in a causticization process. A tube valve is used as an outlet from the pressurized process. The tube valve has a minimum length that is twice a diameter of the tube. A column of lime mud can be held within it as a pressure lock. The column of lime mud can be caused to descend through the tube valve by controlling a difference in pressure between an inner surface and an outer surface of the tube such that the diameter of the tube expands essentially uniformly along its length by 5-10% or by at least 4-6 millimeters.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: May 21, 2013
    Assignee: Metso Paper Sweden AB
    Inventors: Soren Kindlund, Michael A. Rowe, Hans Barthelson
  • Patent number: 8413817
    Abstract: A non-blocking filtration system wherein the suspension filtered continuously scrubs the filter, keeping it free of deposits of solid deposits while the filtrate is removed in a variety of biological and chemical applications, substantially reducing the cost of unit operations.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: April 9, 2013
    Assignee: Therapeutic Proteins International, LLC
    Inventor: Sarfaraz Khan Niazi
  • Patent number: 8303826
    Abstract: An automatic strainer assembly for straining a slurry comprises an inlet for receiving the slurry, a horizontally disposed strainer body in fluid communication with the inlet, and a rotatable strainer member received within the body having an inner surface and an outer surface. The strainer member defines a plurality of passageways for strained fluid to pass therethrough. A scraper is positioned substantially adjacent to and contacting the outer surface of the strainer member for removing material from the outer surface of the strainer member. A collection vessel is positioned substantially below the body for receiving material scraped from the outer surface of the strainer member. A helical member is mounted on an internal shaft or auger is located within the strainer member for contacting the slurry to increase mixing and promote flow of the slurry through the system.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: November 6, 2012
    Assignee: TM Industrial Supply, Inc.
    Inventors: Carl A. Steiner, Ricky L. Jackson
  • 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: 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
  • Patent number: 8172406
    Abstract: A powder dust capture device includes a main body housing having an air intake in which a powder dust capture unit is provided, and a blowing unit for drawing air in from the air intake via the powder dust capture unit, passing the air through a predetermined area, and expelling the air out from an exhaust. The powder dust capture unit includes a filter unit with an electrostatic filter wound around a roller shaft, a filter take-up shaft, a filter feeding mechanism and a filter feed control unit. The filter unit is attachable/removable with respect to the main body housing. The filter feed control unit has a filter feed amount detection unit, and controls a filter feeding operation performed by the filter feeding mechanism, based on detection output from the filter feed amount detection unit.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: May 8, 2012
    Assignee: Panasonic Corporation
    Inventor: Shigekazu Yamagishi
  • Publication number: 20120091065
    Abstract: Methods and apparatus for treating water and wastewater include the step of flowing a suspended solids stream generally upward through a sludge blanket region of a cloth disk filter vessel, thus forming a partially treated effluent composition and a solids-enriched sludge blanket. The partially treated effluent composition is allowed to flow generally upward to a cloth filter zone in the vessel after contacting the sludge blanket. The methods include flowing the suspended solids stream through one or more distribution headers positioned in the sludge blanket. An option is to provide a sludge concentration zone in the sludge blanket region, allowing sludge to flow into the sludge concentration zone to form concentrated sludge. Other methods and apparatus include backwash assemblies that backwash substantially the entire filter cassette surfaces, with or without use of a sludge blanket zone. Either the backwash assemblies or filter cassettes move in the latter methods and apparatus.
    Type: Application
    Filed: October 15, 2010
    Publication date: April 19, 2012
    Inventors: Yongming Xia, Jeffrey S. Devine, Charles G. Dannemann
  • Patent number: 8156659
    Abstract: Disclosed is a filter cleaning apparatus and a ductless dryer adopting the same, the dryer having a main body, a drum rotatably mounted at the main body, a hot air supplying unit supplying hot air into the drum, a heat exchanger condensing and removing moisture contained in air exhausted from the drum, a circulation duct conducing the air exhausted from the drum to the heat exchanger, a filter installed in the circulation duct and filtering foreign substances contained in the air discharged from the drum, and a filter cleaning apparatus removing the foreign substances caught by the filter, thereby enhancing a user's convenience and reducing indoor air contamination which may occur in the course of removing the foreign substances.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: April 17, 2012
    Assignee: LG Electronics Inc.
    Inventors: Han-Yong Jung, Seung-Phyo Ahn, Sang-Ik Lee, Jea-Hyuk Wee, Yang-Ho Kim, Yoon-Seob Eom, Byeong-Jo Ryoo, Sung-Ho Song
  • Publication number: 20110311695
    Abstract: Filter for use in the processing of pasty foods, especially in cheese spread production, having a closed housing (12) with a feed inlet (16) for the product to be filtered, a drain (20) for the filtered product, an output for the filtered-out residue, and a filter insert (14) that is located between the feed inlet (16) and drain (20) with a cylindrical filter wall through which the product flows in the radial direction from the inside to the outside, whereby a pivotable core element (30) is provided that is located coaxially in the filter insert (14), whereby between the core element (14) and the filter wall a defined annulus (36) is formed, the core element (30) being dimensioned in such a way that the annulus (36) that forms enables a constant flow of the product, and on the outer periphery of the core element (30) there being at least one scraper (38) that scrapes on the inner surface of the filter wall as the core element (30) turns for removing the residue.
    Type: Application
    Filed: December 18, 2009
    Publication date: December 22, 2011
    Applicant: HOCHLAND SE
    Inventors: Artur Prinz, Florian Knapp
  • Patent number: 8071055
    Abstract: Exemplary systems and techniques for treating contaminated water are described. In one instance a plant or system includes a membrane filtration mechanism operable to receive an influent water stream containing a contaminant and to separate at least a first portion of the contaminant from a resulting first effluent water stream. The system also includes a reactive filtration mechanism operable to receive the first effluent water stream and to remove a waste stream containing a second portion of the contaminant to produce a resultant second effluent stream.
    Type: Grant
    Filed: January 26, 2007
    Date of Patent: December 6, 2011
    Assignee: Blue Water Technologies, Inc.
    Inventor: Remembrance Newcombe
  • Patent number: 8062610
    Abstract: For analysis of small quatities of target analytes in an environment, the gas flow can be delivered to a suitably fast analyzer and their concentration determined in a time period whose duration is dependent on the analyte, its concentration and the phase separation properties. A device having a sorbent bed that is essentially concentric with a passage way containing thermal fluid is used to concentrate the target analyte.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: November 22, 2011
    Assignee: The United States of America as represented by Environmental Protection Agency
    Inventors: Brian K. Gullett, Abderrahamne Touati, Shawn Ryan, William Squier
  • Patent number: 8048296
    Abstract: An apparatus for filtering liquid that includes a filter having an external surface; a rotatable shaft extending through the filter; and a movable member coupled to the rotatable shaft. The movable member is configured to impart a suction force at various locations across the external surface of the filter. The movable member has a trailing portion that extends further than the leading portion in the direction toward the filter.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: November 1, 2011
    Inventor: Jay Stevens
  • Patent number: 7981282
    Abstract: An automatic strainer assembly for straining a slurry comprises an inlet for receiving the slurry, a horizontally disposed strainer body in fluid communication with the inlet, and a rotatable strainer member received within the body having an inner surface and an outer surface. The strainer member defines a plurality of passageways for strained fluid to pass therethrough. A scraper is positioned substantially adjacent to and contacting the outer surface of the strainer member for removing material from the outer surface of the strainer member. A collection vessel is positioned substantially below the body for receiving material scraped from the outer surface of the strainer member. This collection vessel can include a transport member for returning this scraped material to an initial slurry supply for reprocessing thereof. An outlet is provided in fluid communication with the horizontal strainer body to expel the strained slurry.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: July 19, 2011
    Assignee: TM Industrial Supply, Inc.
    Inventors: Carl A. Steiner, Miguel A. Rendon, Kerry K. Kerr, Ricky L. Jackson
  • Patent number: 7887702
    Abstract: A filtering apparatus is provided for filtering raw water containing various impurities and mixtures into purified water, and more particularly, a multistage filtering apparatus is provided in which a rotor for generating vortex are installed in each of multiple layers of filtration membrane stacked within a closed barrel and the rotors are formed in multistage by having different diameter of each rotor so that the power for generating vortex can be remarkably minimized by generating the vertical vortex from top and bottom of the rotary rotor and the horizontal vortex from the outer side of circumference plate of the rotary rotor to be crossed over between membranes to prevent from blocking the pores or remove the deposited pollutants, and the closed-type barrel having multistage of membranes, rotary shaft, and rotary rotors for vortex generation within are constructed as a single module of filter pack, and the filter pack is connected and extended in accordance with required purified capacity so that large s
    Type: Grant
    Filed: July 21, 2008
    Date of Patent: February 15, 2011
    Assignee: Boo-Kang Tech Co., Ltd.
    Inventors: Gi Taek Park, Sang Wook Kim, Dong-Woo Kim
  • Publication number: 20110000834
    Abstract: The system is for the reception and transport of dry lime mud from a continuously operating pressurized filter in a causticization process. A tube valve is used as an outlet from the pressurized process. The tube valve has a minimum length that is twice a diameter of the tube. A column of lime mud can be held within it as a pressure lock. The column of lime mud can be caused to descend through the tube valve by controlling a difference in pressure between an inner surface and an outer surface of the tube such that the diameter of the tube expands essentially uniformly along its length by 5-10% or by at least 4-6 millimeters.
    Type: Application
    Filed: December 4, 2008
    Publication date: January 6, 2011
    Inventors: Soren Kindlund, Michael A. Rowe, Hans Barthelson
  • Patent number: 7824544
    Abstract: The invention relates to a device which is used to continuously filter material mixtures, in particular for separating impurities from plastic melts. The device includes a hollow cylindrically-shaped filter element (2) which is arranged inside a housing (1), an annular chamber (22) which is defined from the outside of the filter element (2) and an inner wall of the housing, and at least one stripper (23) which can be pressed onto the filter body by an adjusting device. The stripper is used to remove the impurities detained on the filter element (2) due to a relative movement of the filter element (2) and the stripper (23). The adjusting device contains a pressure sensor (42, 53) which is used to detect the pressure of the material mixture upstream from the filter body and an actuator (43) which is connected to the pressure sensor, the actuator being used to adjust the pressure of the stripper (23) according to the pressure detected by the pressure sensor.
    Type: Grant
    Filed: October 23, 2004
    Date of Patent: November 2, 2010
    Assignee: Ettlinger Kunststoffmaschinen GmbH
    Inventor: Roderich Ettlinger
  • Patent number: 7820039
    Abstract: The invention relates to an apparatus for the continuous filtering of impurities from a flowable compound, especially a plastic melt, comprising a filter insert (3) in the form of a hollow rotary body which is held to rotate about its rotational axis (A) relative to a housing (1, 2) and is flowed through by the flowable compound and which is arranged in a flow conduit of the housing (1, 2) between a feed conduit (7) for the compound to be filtered and a discharge conduit (8) for the filtered compound, and a discharge apparatus for impurities held back by the filter, which apparatus comprises a feed screw (9) cooperating with the filter insert (3). In order to provide advantageous constructional conditions it is proposed that the filter insert (3) comprises a disk-like filter (5) which is arranged on the face side of the rotary body and is coaxial to the rotational axis (A).
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: October 26, 2010
    Inventor: Helmuth Schulz
  • Patent number: 7807050
    Abstract: The present invention relates to stationary cloth media filtration systems and devices, as well as processes and devices, including improved cloth media filter backwashing using a rotating backwash arm assembly.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: October 5, 2010
    Assignee: Aqua-Aerobic Systems, Inc.
    Inventors: Peter G. Baumann, David Smith
  • Patent number: 7771589
    Abstract: An apparatus and method are provided that enable the control of a screening operation based on a calculated screen blockage percentage and the velocity throughput of the screen. The apparatus includes an upstream level detector, a downstream level detector and a flow determining device which determines the volumetric flow through the screen. The apparatus may further include a blockage determination unit which determines the percent screen blockage based on the flow level upstream of the screen, the flow level downstream of the screen and the volumetric flow.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: August 10, 2010
    Assignee: JWC Environmental
    Inventors: Scott Kelly, Kenneth Oyler, James Burke
  • Publication number: 20100108582
    Abstract: A screening device for wastewater includes a perforate screening member through which wastewater in an associated channel flows from a bottom side thereof to a top side thereof. An overfall wall is positioned in the wastewater channel. A clearing member is shiftable relative to the screening member for cleaning screenings therefrom, and is positioned upstream of the overfall wall. A waterwheel is positioned in the wastewater channel at a location downstream of the overfall wall, and is operably connected with the clearing member for mechanically shifting the same to remove the screenings from the screening member without using external power.
    Type: Application
    Filed: April 9, 2009
    Publication date: May 6, 2010
    Inventor: Jorg-Michael Steinhardt