Fixed Filter Medium And Movable Stirrer Or Cleaner Patents (Class 210/413)
  • Patent number: 10227926
    Abstract: An exhaust gas abatement system includes an exhaust gas abatement section configured to abate exhaust gases by utilizing thermal energy and to cool the abated gases by using a liquid, a circulating section configured to circulate the liquid within a circulation path as a circulating liquid, a heat exchange tube configured to cool the circulating liquid and to executes a heat exchange between a cooling liquid which flows in an interior of the heat exchange tube and the circulating liquid which flows outside the heat exchange tube, and a circulating liquid storage portion configured to store the circulating liquid. The heat exchange tube is disposed in a heat exchange tube installation space which is in at least part of an interior of the circulating liquid storage portion.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: March 12, 2019
    Assignee: EBARA CORPORATION
    Inventors: Kazumasa Hosotani, Makoto Kashiwagi, Toyoji Shinohara, Kohtaro Kawamura
  • Patent number: 10136785
    Abstract: A vacuum cleaner having a filter cleaning mechanism that is manually actuable while the vacuum cleaner is fully assembled is disclosed. A housing of the vacuum cleaner has an exterior side and an interior side, and a channel extends through the housing from the exterior side to the interior side. A filter brush is in contact with a side of the vacuum filter, and a rod extends slidably through the channel in the housing and is coupled to the filter brush. A handle is coupled to the rod, and movement of the handle slides the rod through the channel and moves the filter brush along the side of the vacuum filter to remove debris from the filter. The handle may be rotatable, and the filter cleaning mechanism may include a bellows or a sealing member.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: November 27, 2018
    Assignee: SHOP VAC CORPORATION
    Inventors: Jason Gottschall, Kurt Westbrook, Randy L. Buss
  • Patent number: 10060401
    Abstract: A method for compensating for a variable distance between two components of an apparatus for providing a fluid filtering device therebetween is provided. The method comprises placing an adjustable filtering device between two components, altering the distance between the two components, and compensating for the change in distance between the two components by varying a dimension of the adjustable filtering device.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: August 28, 2018
    Assignee: Caterpillar Inc.
    Inventor: Adam Scott Krejci
  • Patent number: 9723946
    Abstract: A beverage machine that heats up water in the upper water chamber(s) is provided. The water has direct contact with an electric heating system and the heated water flows by gravity and being distributed by a pour over system into an underlying filter basket. The hot water chamber has a sensor for water temperature. Once the water reaches an optimal temperature, a motor and gear system would drive a valve open and allow the heated water to flow into the underlying filter basket. A specific amount of water can be heated up in individual batch, thereby making it easy to manage water temperature in every batch.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: August 8, 2017
    Assignee: ENE HOLDINGS LTD
    Inventors: Andrew Yuen Chin Chen, Amy Decem Cheng, Raymond Wai Ming Wong, Jeremy Kok Leong Tay
  • Patent number: 9327218
    Abstract: A filter apparatus and method for filtering a liquid. The filter apparatus comprises a housing that has at least one inlet for admission of the liquid to be filtered and at least one outlet for discharge of the filtered liquid. The apparatus further comprises at least two substantially cylindrical filter elements that can be fitted into the housing and which have a plurality of openings through which the liquid can flow to filter particles out of the liquid, and at least one filter cleaning element that can be introduced into a respective filter element in a region of an inner surface of the filter element to increase a flow speed of the liquid to be filtered so that substances in the filter element are flushed away. The filter elements are further connected in a parallel arrangement in the filter apparatus.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: May 3, 2016
    Assignee: Georg Schunemann GmbH
    Inventors: Wolfgang Linster, Michael Maier
  • Patent number: 9302950
    Abstract: The invention is generally applicable to a composting container. More specifically, a compositing container is provided that includes a body defining a cavity for receiving material to be composted and an agitator mechanism for agitating or otherwise moving, stirring, shifting, disturbing, disrupting or displacing the material in the cavity. In various additional embodiments, a grating is situated in the cavity that divides the cavity into an upper portion and a lower portion.
    Type: Grant
    Filed: July 5, 2013
    Date of Patent: April 5, 2016
    Assignee: TOTER, LLC
    Inventors: Todd E. Wright, Joseph M. Lehman, Shannon Douglas Staats, Paul Perry Kolada, Chad Michael Leeder, Eric James Fickas, John Tarlton Ford
  • Patent number: 9022223
    Abstract: A compact, piston-driven water filtration system with annular cleaning device/brush. The filter apparatus operates based on a piston-driven pressure system where the piston is threadably mated to a water reservoir. Threading of the piston forces a sleeve connected thereto within the reservoir to force water through any suitable water filter (e.g. carbon-based, ceramic, micro- and/or nano-membrane materials) on the opposite side of the reservoir from the threadably-mated piston within the reservoir. The sleeve connected to the piston within the interior of the reservoir includes a cleaning device (e.g., brush, scraper, pad, etc.) on a distal end of the sleeve inside the water reservoir. The annular brush has an inner diameter smaller than that of the sleeve, such that as the piston is threaded into and out of the reservoir, the sleeve moves toward, over, and away from the filter, and the brush scrapes/scrubs/cleans the exterior of the filter for cleansing.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: May 5, 2015
    Assignee: Instapure Brands, Inc.
    Inventor: William Scott Wright
  • Patent number: 8961782
    Abstract: Grey water is conveyed to a tank, passed through filters, and pumped to an irrigation system. A floating spray component is provided in the tank to automatically backwash the filters to prevent clogging, moving up and down as the level of water in the tank changes. The filters can be cylindrical and oriented vertically, and a removable, internal filter cartridge can mount the filters. The filters can be accessed through a top, above ground cap, and the carriage can be removed for access to other parts by removing a larger lid.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: February 24, 2015
    Assignee: The Filtrific Co., LLC
    Inventor: Edward B. Berkey
  • Patent number: 8950584
    Abstract: In a screening device, a rotor element on a rotor coaxial with a cylindrical screen drum and a cylindrical screen including: an upper surface and a front face between the surface of the rotor and the upper surface, wherein the front face faces upstream into pulp flow through a gap between the screen drum and the cylindrical screen; a trailing surface extending downstream of the pulp flow from the upper surface, wherein the trailing surface tapers to the surface of the rotor and meets the surface of the rotor at a back region of the trailing surface, and opposite sidewalls extending between the trailing surface and the surface of the rotor, wherein the opposite sidewalls gradually converge towards the back region.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: February 10, 2015
    Assignee: Andritz Oy
    Inventors: Petri Harju, Sami Siik, Simo Kiero, Ville Terava
  • Patent number: 8945386
    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: Grant
    Filed: September 26, 2012
    Date of Patent: February 3, 2015
    Inventor: Yung-Chuan Lee Wang
  • Publication number: 20140374365
    Abstract: This invention relates generally to a process and an apparatus therefor for recovering valuable or harmful water miscible liquids from mixtures such as slurries that contain such liquids and solid particles.
    Type: Application
    Filed: February 25, 2013
    Publication date: December 25, 2014
    Inventor: Craig Nazzer
  • Publication number: 20140367320
    Abstract: A sludge condensing machine includes: a gravity filtration section conducting a gravity filtering to a sludge while conveying the sludge on an upper surface of a filtration body, and a movement mechanism, disposed at a downstream side of a sludge insertion position of the gravity filtration section, for reducing a dimension of the sludge in a width direction on the filtration body by moving the sludge in a direction intersecting a conveying direction that the sludge is conveyed by the filtration body.
    Type: Application
    Filed: August 29, 2014
    Publication date: December 18, 2014
    Inventor: Yoshiyuki SUGAWARA
  • Patent number: 8881648
    Abstract: A concentrator-integrated screw press includes: a continuous concentrator configured to continuously concentrate sludge and discharge the sludge as concentrated sludge, and including a discharge amount equalization unit configured to equalize an amount of concentrated sludge to be discharged per unit time; a positive displacement pump installed consecutively to the concentrator, and configured to continuously transport the concentrated sludge discharged from the concentrator; and a screw press installed consecutively to a discharge side of the positive displacement pump, and configured to compress and dewater the concentrated sludge.
    Type: Grant
    Filed: February 1, 2010
    Date of Patent: November 11, 2014
    Assignee: Ishigaki Company Limited
    Inventors: Manabu Yamashita, Masaharu Miyawaki, Masayoshi Katayama
  • Patent number: 8852445
    Abstract: A backwash header for a cloth filter disk includes a body having a length a diameter, first and second ends, a longitudinal axis, and an exterior surface, the body defining at least one internal cavity. The body includes at least one suction slot configured to allow fluids and solids to enter the internal cavity from outside of the exterior surface. A structure is attached to a portion of the exterior surface of the body around and extending away from the suction slot to form a chamber defined by the structure and a portion of the exterior surface near the suction slot. The structure is configured to allow fluids and solids to enter the chamber and then the suction slot and cavity from a material being cleaned. Cloth disk filters and methods of treating water and wastewater using the backwash headers and cloth disk filters.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: October 7, 2014
    Assignee: Alfa Laval Ashbrook Simon-Hartley, Inc
    Inventors: Yongming Xia, Jeffrey S. Devine, Charles G. Dannemann
  • Publication number: 20140272035
    Abstract: An auto-cleaning marination filter for a poultry injector system including an outer housing having a liquid inlet and outlet, a screen that allows passage of liquids and impedes passage of solid particles, and a wiper surrounded by said screen for removing solid particles attached to the screen by reverse flow of the liquid through a gap in the wiper.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Inventors: Andrew C. Estes, Jeremy B. Estes
  • Patent number: 8828223
    Abstract: A deep fat fryer with continuous oil filtering and purging of sediments therefrom during uninterrupted fryer operation is provided. The filter includes a cylindrical hollow housing with a first end and a second end and a hollow cylindrical screen with a longitudinal axis and first and second ends. The screen is disposed coaxially within the hollow housing to define an annulus therebetween. A piston mounted within the screen and reciprocatingly movable along the longitudinal axis between the first and second ends of the screen. A pump, seal, and associate motor are provided to provide continuous oil flow through the filter and the remainder of the fryer. A heat exchanger is provided downstream of the pump to transfer heat from the fryer to the oil flowing through the heat exchanger.
    Type: Grant
    Filed: May 13, 2008
    Date of Patent: September 9, 2014
    Assignee: Pitco Frialator, Inc.
    Inventors: Steven J. Savage, Charles E. Pierce, John P. Gardner, Mark E. McCabe, Rory A. Longe, Kurt H. Jensen
  • Publication number: 20140224749
    Abstract: A filter mesh assembly configured to control particulate material in a filter assembly of a plastic extruder. The filter mesh assembly includes a wire mesh filter having a square weave construction defining a predetermined pore size with the wire mesh filter having flattened surfaces of adjacent wires on the same plane and configured to allow a portion of the scraper to move across the wire mesh filter assembly. The assembly also includes a wire mesh supporter having a square weave construction and a characteristic of sufficient strength to support the wire mesh filter against a breaker plate. The wire mesh filter and the wire mesh supporter are diffusion bonded to each other as a unified structure and disposed in a housing between an inlet and breaker plate. The configuration allows passage of molten plastic through the breaker plate and lateral movement of material, parallel to the breaker plate.
    Type: Application
    Filed: February 12, 2013
    Publication date: August 14, 2014
    Inventors: Sam Arthur Hopkins, Mitchell Scott Vande Guchte, Scott Allen Rhoads
  • Publication number: 20140217039
    Abstract: A media retainer assembly for retaining filter media in a filter assembly includes a top plate for supporting the filter media, the top plate having a top surface, a bottom surface and a plurality of openings extending therethrough; a bottom plate having a top surface and a plurality of openings extending therethrough; and scouring media, the scouring media being adapted to abrade the surfaces of the top and bottom plates. The top plate is connected to the bottom plate such that the top surface of the bottom plate is spaced from the bottom surface of the top plate to define at least one chamber between the top plate and the bottom plate. The top surface of the top plate is in fluid communication with the chamber via the openings in the top plate. The scouring media is supported by the bottom plate within the at least one chamber.
    Type: Application
    Filed: January 8, 2014
    Publication date: August 7, 2014
    Applicant: Xylem Water Solutions Zelienople LLC
    Inventors: John L. Geibel, Christopher J. Ball
  • Patent number: 8778174
    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: Grant
    Filed: October 15, 2010
    Date of Patent: July 15, 2014
    Assignee: Alfa Laval Ashbrook Simon-Hartley Inc.
    Inventors: Yongming Xia, Jeffrey S. Devine, Charles G. Dannemann
  • Patent number: 8746138
    Abstract: A solid/fluid separation module and pretreatment apparatus and method enables pretreatment of biomass at high temperature and pressure with the ability to vary residence and processing times.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: June 10, 2014
    Assignee: GreenField Specialty Alcohols Inc.
    Inventors: Richard Romeo Lehoux, Christopher Bruce Bradt
  • Patent number: 8734641
    Abstract: A wastewater tertiary media filtration system capable of enhancing filtration performance while including backwashing capabilities that eliminate turbidity spikes by using compressed fluid injected to the interior of submerged includes a filter tank having an inlet and an outlet with a plurality of pile cloth media filter disks disposed in generally parallel relation between the inlet and outlet. Each filter disk preferably includes opposing filter panels disposed in generally parallel spaced relation and supported by a frame. The filter disks may be angularly disposed at approximately 55-degrees relative to horizontal so as to maximize settlement velocity in accordance with the advantages of inclined plate technology. Backwashing is primarily accomplished by injecting compressed fluid (such as air) to the interior of each filter disk assembly whereby accumulated solids are blown off of the cloth filter media by reverse flow.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: May 27, 2014
    Inventor: Anthony Collins
  • 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
  • Publication number: 20140042078
    Abstract: An inclined mesh panel type filtering apparatus capable of easily removing suspended solids from water. In a conventional apparatus, a filtration fabric is contaminated from use even when it is cleaned by a brush unit or a cleaning unit, and is almost clogged, in the course of one to two years after being put into operation, to such an extent that scale is not even removed even by additional manual cleaning. Thus, the entire apparatus should be disassembled to replace the filtration fabric with a new one or exchange an entire filter drum. This problem is resolved by the inclined mesh panel type filtering apparatus that can be continuously operated for a long time in which a filtration panel formed with fine openings having a typical size of 0.2 to 1.2 mm is not clogged and does not require high-pressure cleaning-water or air showers that consume high energy.
    Type: Application
    Filed: August 5, 2013
    Publication date: February 13, 2014
    Inventor: Doo Yun HWANG
  • Patent number: 8641908
    Abstract: A method of recovering polyhydroxyalkanoates (PHAs) from municipal waste sludge includes: (a) measuring a solid content in the municipal waste sludge in terms of a volatile suspended solid in the municipal waste sludge; (b) removing supernatant from the municipal waste sludge; (c) freezing the municipal waste sludge; (d) conducting a pretreatment of the municipal waste sludge that has been frozen; (e) adding a surfactant into the pretreated sludge to obtain a slurry; (f) adding a controlled amount of sodium hypochlorite solution to the municipal waste sludge obtained in step (e), a ratio of a volume of the sodium hypochlorite solution to the solid content of the municipal waste sludge ranging from 0.67 mg/ml to 1.25 mg/ml and being defined as a liquid-solid ratio; and (g) separating PHAs from non-PHAs substances in the municipal waste sludge obtained in the step (f).
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: February 4, 2014
    Assignee: National Chi Nan University
    Inventors: Yung-Pin Tsai, Meng-Shan Lu, Chih-Chi Yang, Shou-Te Chen
  • 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: 8557127
    Abstract: A separator system for separating the solids debris from a slurry flowing over a spillway from a storage pit includes a horizontal conveyor horizontally disposed across a flowpath of the slurry below the spillway and including a channel defined by a pair of opposed side members extending upward from a bottom plate having a pattern of perforations formed therein. A plurality of spaced apart paddles oriented in a direction parallel to the channel are fixed to continuous conveyor drive running along the bottom of the trough. A conveyor has a pickup end disposed below the downstream end of the trough and is positioned to catch solid debris that has been carried along by the paddles and convey the solid debris out of the slurry stream.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: October 15, 2013
    Inventor: Rejean Houle
  • Publication number: 20130240454
    Abstract: A system for collecting matter provides a low energy, low cost and nearly zero pollutant process for extracting suspended matter in a medium. The system collects the matter on a material which is deployed into the medium, and the matter is extracted off the material. If an oil spill occurs in a body of water, then the material can rapidly remove the oil from the water in high concentrations. If oil or bitumen is mixed with water due to tar sands processing, then the material can extract the oil or the water depending on a balance of oleophilic or hydrophilic properties of the material. The extracted matter and the medium can proceed to further processing such as water purification and/or petroleum refining. This invention collects matter in an economically and environmentally viable manner.
    Type: Application
    Filed: June 17, 2011
    Publication date: September 19, 2013
    Applicant: Algawventure Systems, Inc.
    Inventors: Ross O. Youngs, James R. Cook, Shanon I. Rogers
  • Patent number: 8524077
    Abstract: A shower tube cleaning device for a filter for a water tank in which clean water from the filter is returned to the interior of the water tank through the shower tube, which is provided with a plurality of nozzles, wherein an operating rod (11) passing through the interior of the shower tube (5) is linked to a cleaner (10) slidably provided within the shower tube (5), a knob (12) is fixed to the free end of the operating rod (11), and pushing and pulling the knob (12) makes the cleaner (10) reciprocatingly slide to thus scrape off foreign matter within the shower tube (5). This enables an inner face of the shower tube to be cleaned while the shower tube is linked to the filter.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: September 3, 2013
    Inventor: Soichi Ogawa
  • Patent number: 8524075
    Abstract: A fluid pressure vessel has a filter cartridge with spaced headers positioning cylindrical pleated filter media. The headers form an inlet chamber communicating with the inlet upstream side of the filter media and an isolated outlet chamber communicating with the downstream side of the filter media. A hollow piston with a toothed periphery having a circumferential slot is positioned closely adjacent the upstream side of the filter media. The piston hollow communicates with a drain chamber isolated from the inlet and outlet chambers. Upon opening of the drain chamber to atmospheric pressure, the pressure in the piston hollow and slot causes a lower pressure in a localized area of the media and back flushing of trapped material on the upstream side of the media to the drain chamber. An actuator is connected to selectively progressively move the piston and slot along the entire surface of the media.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: September 3, 2013
    Assignee: Eaton Corporation
    Inventor: Mark Anthony Quintel
  • Patent number: 8524083
    Abstract: A filter device and a method for the filtration of beer, where, for an improved and simplified filtration, the filter includes a nonfiltrate chamber having a nonfiltrate inlet and a nonfiltrate outlet, wherein the nonfiltrate flows into the nonfiltrate chamber substantially tangentially to the walls thereof, and the bottom of the nonfiltrate chamber is constructed at least partially as a filter. The filter also includes a filtrate chamber underneath the bottom, and a filtrate outlet.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: September 3, 2013
    Inventors: Klaus-Karl Wasmuht, Cornelia Folz, Kurt Stippler, Thomas Albrecht, Heinz Humele, Michael Thomas Stein
  • Patent number: 8469198
    Abstract: A screen basket with replaceable profiled bars and method of making such screen basket are described herein. The screen basket includes profiled bars evenly spaced circumferentially to form a plurality of continuous slots that covers the whole basket length. The profiled bars are fixed in place by a backing structure, including support rings. In pulp and paper industry, this type of basket is mainly used for pulp screening and is commonly referred to as wedge wire basket. As opposed to conventional wedge wire baskets, in which the profiled bars are permanently joined to the rings, the present invention allows replacing the profiled bars when required and to fully re-use the main structural elements. This is achieved with an assembly that allows to insert the profiled bars, preferably consecutively sled into each aligned ring grooves in a vertical movement. The ring grooves are profiled such that there is sufficient clearance for sliding in the profiled bars.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: June 25, 2013
    Assignee: Kadant Canada Corp.
    Inventor: Marc-André Hetu
  • Patent number: 8444862
    Abstract: A rotary disc filter device comprises a rotary drum and a plurality of disc-shaped filter members secured about the drum. Each disc-shaped filter member has a filtering material disposed on the outside thereof. A guide bar extends longitudinally across the disc-shaped filter members and has a movable carriage mounted thereon. One or more nozzles are operatively connected to the carriage for delivering cleaning fluid onto the filtering materials. The guide bar is rotates between a cleaning position and an adjustment position. When the guide bar is in the cleaning position, the nozzle is disposed adjacent to one of the disc-shaped filter members such that the nozzle is positioned to deliver cleaning fluid onto the filtering material. When the guide bar is in the adjustment position, the carriage is movable along the guide bar without interference from the disc-shaped filter members.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: May 21, 2013
    Assignee: Veolia Water Solutions & Technologies Support
    Inventor: Ake Ralvert
  • 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: 8377291
    Abstract: A water recycling system that can be used for reclaiming and recycling water, waste water, or grey water, for providing landscape irrigation, or for recycling uses such as for sanitary facilities, as well as for pre-heating clean water to save energy. A water recycling system may include a sealable tank, an influx pipe, a self-clearing filter disposed within the tank, a pump, and an effluent pipe.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: February 19, 2013
    Assignee: Eckman Environmental Corporation
    Inventor: Noadiah S. Eckman
  • Publication number: 20130032527
    Abstract: A system for filtering and sampling, preferably but not exclusively, of oil drilling mud for the purpose of analyzing the gaseous component contained in debris produced by well-drilling and transported by said mud. The system is provided with a filtering surface developed in three dimensions and with various methods for cleaning the filtering surface with which any contact is avoided between the cleaner and the filtering surface. This prevents further and excessive incrustations of debris on the meshes of the filter and avoids an undesirable passage of air in the aspiration pipe when the filter is partially immersed.
    Type: Application
    Filed: April 9, 2012
    Publication date: February 7, 2013
    Inventor: Antonio Calleri
  • Patent number: 8361313
    Abstract: Plant for treating the leftover liquids of mechanical processing, comprising a filtering partition (9) for filtration of the fluid and means for cleaning the partition by washing of the layer of mud deposited hereon, comprises vibratory means suitable for causing a generally fast and continuous vibratory state at least in the active portion of the partition. The plant comprises at least one chamber (6) that is divided into two parts by the filtering partition (9), one part being intended for the exit of the filtered fluid, means suitable for causing a generally fast and continuous vibratory state at least in the active portion of the partition are associated with said chamber. Method for treating the leftover fluids of mechanical processing, comprising filtration of the fluid through a filtering partition and periodic cleaning of the partition through washing of the layer of mud deposited here; it foresees that at least the surface of the partition on which the mud deposits is subjected to vibratory motion.
    Type: Grant
    Filed: January 25, 2005
    Date of Patent: January 29, 2013
    Assignee: P.M.P.O. S.R.L.
    Inventors: Fabio Pancaldi, Vanni Gallocchio
  • Patent number: 8328021
    Abstract: An apparatus for screening a fibrous suspension including: a housing, conduits therein at least for fiber suspension being fed, reject and accept, and a rotor and a cylindrical screen drum installed in the housing, at least one of which is rotatable, whereby a surface of the rotor is provided with rotor elements in proximity to the surface of the screen drum, whereby each rotor element includes a front surface facing a flow of the fiber suspension, an upper surface and a trailing surface sloping from the upper surface towards the surface of the rotor, wherein the trailing surface of the rotor element is curved and sidewalls of the trailing surface converge at a back point of the rotor element.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: December 11, 2012
    Assignee: Andritz Oy
    Inventors: Petri Harju, Sami Siik, Simo Kiero, Ville Terävä
  • Patent number: 8297447
    Abstract: A dual-side cleaning traversing screen filtration system which generally comprises a main trough water containment housing, a traversing manifold having a multitude of top and bottom disposed spray heads, flexible plumbing, a substantially planar, rectangular supported screen which is disposed over, and spans the opening of, the main trough water containment housing which, in the preferred embodiment, has a rectangular box like shape, with the combined assemblage functioning as a filter to separate unwanted debris from the water that passes through the screen into the slightly inclined main trough water containment housing where it can be continually removed and re-used.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: October 30, 2012
    Assignee: Fruit Growers Supply Company
    Inventors: David Sorenson, Bruce Adams
  • Patent number: 8298421
    Abstract: A filter device for the insertion of filter elements (28) to be positioned in a filter housing (10) having a filter inlet (20) and a filter outlet (22) for the fluid to be filtered. The filter elements (28) are traversed in both directions for filtration or backwashing. Certain filter elements (28) perform the filtration in a filtration position and at least one additional filter element (28) can be backwashed in a backwashing position to clean its active filtration surface. As the individual filter elements (28) are brought into the backwashing position and are then returned to their filtration position in succession by a pivoting device (30), the filter elements are individually displaced into the backwashing position in a temporal sequence, in contrast to prior art, where an arm-type backwashing device is pivoted towards the individual filter elements to carry out the backwashing process.
    Type: Grant
    Filed: November 23, 2004
    Date of Patent: October 30, 2012
    Assignee: Hydac Process Technology GmbH
    Inventors: Ralf Wnuk, Markus Maretyak
  • Patent number: 8297445
    Abstract: A screen basket with replaceable profiled bars is described herein. The screen basket includes profiled bars evenly spaced circumferentially to form a plurality of continuous slots that covers the whole basket length. The profiled bars are fixed in place by a backing structure, including support rings. The support rings are made of at least two sections.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: October 30, 2012
    Assignee: Filtration Fibrewall Inc.
    Inventor: Guy Maurais
  • 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: 8147689
    Abstract: A dewatering conveyor system for dewatering chunks of petroleum coke or the like material which is mixed with large volumes of water, wherein the conveyor employs lateral drag bars, the top flight of which conveyor slides forwardly on a screening deck having dewatering screens, and the bottom flight of which conveyor slides rearwardly on a sluice deck underlying the screening deck, wherein a major portion of the conveyor rearward of its discharge end is contained by tail end wall means and side and bottom wall means which can contain large volumes of coke and water, wherein, for handling large volumes of water the discharge end of the conveyor is elevated, e.g., up to 20 ft. or more above the tail end of the conveyor such that water dropping thru the screens will run down toward the tail end of the conveyor and leave the discharge end above the water line, and wherein a drain port is located thru the bottom wall means at a tail end portion thereof.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: April 3, 2012
    Inventor: Lowell Cogar
  • Patent number: 8101090
    Abstract: A rotary disc filter device comprises a rotary drum and a plurality of disc-shaped filter members secured about the drum. Each disc-shaped filter member has a filtering material disposed on the outside thereof. A guide bar extends longitudinally across the disc-shaped filter members and has a movable carriage mounted thereon. One or more nozzles are operatively connected to the carriage for delivering cleaning fluid onto the filtering materials. The guide bar is rotates between a cleaning position and an adjustment position. When the guide bar is in the cleaning position, the nozzle is disposed adjacent to one of the disc-shaped filter members such that the nozzle is positioned to deliver cleaning fluid onto the filtering material. When the guide bar is in the adjustment position, the carriage is movable along the guide bar without interference from the disc-shaped filter members.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: January 24, 2012
    Assignee: Veolia Water Solutions & Technologies Support
    Inventor: Ake Ralvert
  • 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
  • Publication number: 20110253605
    Abstract: Systems and methods for filtering algae from fluid including a piston and pressurized air system to scrape and clean algae from the filter.
    Type: Application
    Filed: May 31, 2011
    Publication date: October 20, 2011
    Applicant: Arizona Board of Regents for and on Behalf of Arizona State University
    Inventors: Qiang HU, Milton SOMMERFELD, Xuezhi ZHANG, Aniket KALE
  • Patent number: 8038889
    Abstract: A screen cleaning apparatus for use, for example, in connection with a discharge conduit of a sewage pumping station, may include a housing, a screen, a rake and a float. The housing may operate to contain a fluid (and/or define a container for the other components) and include a fluid inlet and a fluid outlet. The screen may be positioned in the housing and define one or more apertures. The rake may also be positioned in the housing and have one or more protrusions, with each protrusion extending into a respective aperture in the screen. The float may apply a force to the rake so that the rake moves relative to the screen and in dependence upon variations of a volume of fluid received in the housing. Accordingly, the rake may rise and fall will the fluid level to remove debris from the screen.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: October 18, 2011
    Assignee: Samatrix Limited
    Inventor: Samuel Munn
  • Patent number: 8029666
    Abstract: A wastewater screening device includes a perforate screening member through which wastewater flows, including a plurality of laterally spaced apart screening rods interconnected by cross members, such that solids in the wastewater are captured by the screening member. A plurality of wiping elements are positioned between the screening rods and shift longitudinally to clear screenings from the screening member. Each of the wiping elements has at least one end projection disposed laterally between opposite sides of the screening member, and a tapered wiping surface.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: October 4, 2011
    Inventor: Jörg-Michael Steinhardt
  • Patent number: 8029665
    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: Grant
    Filed: April 9, 2009
    Date of Patent: October 4, 2011
    Inventor: Jörg-Michael Steinhardt
  • Patent number: 8028841
    Abstract: Apparatus and methods include an improved filter and cleaning processes for same. A rotating cleaning element is actuated by vacuum pressure, and relatively precise controls ensure that all portions of the filter's surface are vacuumed cleaned during cleaning cycles. Longitudinal pressure on the rotating cleaning element is balanced to reduce wear and improve performance.
    Type: Grant
    Filed: October 7, 2004
    Date of Patent: October 4, 2011
    Inventor: Donald O. Olson