Tubular Patents (Class 210/323.2)
  • Patent number: 10633268
    Abstract: Provided is a water treatment module including a bundle of hollow fiber membranes that includes a treatment portion extending between bottom and top ends and at least one gas diffuser. The membranes may be gas permeable and water impermeable. At least one end of the hollow fiber membranes is linked to a source of biofilm growth-supporting gas (BGSG) and configured to permit inlet of said BGSG into the hollow fiber membranes. Also provided herein are devices, systems and methods making use of the module.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: April 28, 2020
    Assignee: EMEFCY LTD.
    Inventors: Ronen-Itzhak Shechter, Steven D. Kloos
  • Patent number: 10537835
    Abstract: A fully automatic magnetic filter includes an apparatus barrel, magnetic rollers, scrapers, and a motor. The number of the magnetic rollers is four and corresponds to the number of the scrapers. The magnetic rollers are located in the apparatus barrel, and each includes an outer layer and an inner core. The outer layer is sleeved onto the inner core. The inner core has a magnetic region and a non-magnetic region. The outer layers of the magnetic rollers are driven and connected through a gear. The outer layer of one of the magnetic rollers is connected with the motor and driven by the motor. Each scraper corresponds to the outer layer of a corresponding one of the magnetic rollers. When the iron filings adsorbed on the outer layer are rotated to the non-magnetic region, the iron filings can be scraped off by the scrapers.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: January 21, 2020
    Assignee: UNIVERSAL FILTRATION (SHANGHAI) CO., LTD.
    Inventor: Jian Guo Chen
  • Patent number: 10443085
    Abstract: Disclosed is a method for detecting a nucleic acid using a substance that suppresses, in the labeling step of the post-staining method, detachment of a target nucleic acid that has once hybridized with a capture probe immobilized on a support, which method enables detection of the target nucleic acid with a sensitivity equivalent to or higher than that achieved by a method using sodium ion even in cases where the substance is used at a lower concentration. The method for detecting a nucleic acid comprises the steps of: (1) hybridizing a capture probe with a target nucleic acid to form a double-stranded nucleic acid; bringing the formed double-stranded nucleic acid into contact with a solution containing a labeling substance and a divalent metal cation at a concentration of not less than 10 mM to introduce the labeling substance into the double-stranded nucleic acid; and detecting the labeling substance introduced into the double-stranded nucleic acid.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: October 15, 2019
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Fumio Nakamura, Yoji Ueda, Takafumi Arike
  • Patent number: 10376620
    Abstract: Systems and methods are provided for separating a red blood cell-containing fluid into separated red blood cells and another fluid constituent. A suitable system includes a disposable fluid flow circuit and a durable, reusable separation system, with the circuit being mounted onto or otherwise associated with the separation system. The circuit includes a membrane separator for separating the fluid into its constituent parts, as well as a leukoreduction filter. The leukoreduction filter may be used before or after the red blood cell-containing fluid has been passed into the membrane separator. The red blood cell-containing fluid (if the leukoreduction filter is positioned upstream of the membrane separator) or the separated red blood cells (if the leukoreduction filter is positioned downstream of the membrane separator) may also be passed through a microaggregate filter prior to passing through the leukoreduction filter.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: August 13, 2019
    Assignee: Fenwal, Inc.
    Inventors: Daniel R. Lynn, Daryl R. Calhoun
  • Patent number: 10350529
    Abstract: Disclosed is a filtration article comprising a first layer comprising porous PTFE for fluid filtration (e.g., a PTFE membrane), and a second layer comprising strands of fluoropolymer fibers arranged to form a stable knit. The knit layer comprises interlocking regions that are each defined by corresponding sets of at least two interlocking loop portions of the fluoropolymer fiber strands. In filtration article embodiments, the fluoropolymer fiber strands may be twisted and/or have a rounded outer configuration. The knit layer provides improved dimensional stability as a support layer for the filtration layer and/or as a drainage layer.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: July 16, 2019
    Assignee: Entegris, Inc.
    Inventors: Eric Keith Propst, Steven H. Speck
  • Patent number: 10238785
    Abstract: The present disclosure relates to a hemodialysis membrane for the treatment of hemolytic events, especially acute episodes of hemolysis which lead to elevated levels of plasma free hemoglobin. The present disclosure further relates to methods of removing hemoglobin from the blood of patients undergoing a hemolytic event. The treatment and method encompasses using a hemodialysis membrane which is characterized in that it comprises at least one hydrophobic polymer and at least one hydrophilic polymer and in that it has a MWRO of between 15 and 20 kD and a MWCO of between 170-320 kD, or, in the alternative, has a MWRO of between 9 and 14 kD and a MWCO of between 55 kD and 130 kD.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: March 26, 2019
    Assignee: GAMBRO LUNDIA AB
    Inventors: Markus Storr, Bernd Krause, Michael Hulko, Oliver Amon
  • Patent number: 10207207
    Abstract: A method for producing at least one hollow filter element comprising a grid-like wall, wherein the at least one filter element is produced by means of a generative process from a free-flowing or pourable starting material by solidifying the starting material in selective locations, layer by layer at the locations of each layer which correspond to the at least one filter element by inputting energy by means of focused radiation.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: February 19, 2019
    Inventors: Matthias Fockele, Heinz-Dietmar Schmidt
  • Patent number: 10179426
    Abstract: A tubular depth filter element has three or more concentric zones. Each zone is made of an essentially continuous melt blown filament. The filament of an outer zone preferably has a larger diameter than the filaments of other zones. The outer zone overlaps with at least 85%, and preferably all, of another zone. Optionally, one or more additional filaments may traverse through all of zones. The depth filter element is made by spraying filaments onto a rotating mandrel to form a filament mass in contact with a conical press roller. The filaments are sprayed from three or more nozzles which are spaced apart along the length of the mandrel. One of the filaments is formed in a spray pattern that is angled towards an adjacent spray pattern so as to overlap with at least 50 or 85%, and preferably all, of the adjacent spray pattern.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: January 15, 2019
    Assignee: BL TECHNOLOGIES, INC.
    Inventors: Travis Gerald Stifter, Thomas Martin Aune
  • Patent number: 10173153
    Abstract: A liquid filter assembly includes a porous tubular support member and a filter element removably and replaceably oriented in the interior volume of the support member. A bypass valve arrangement is provided to permit at least some unfiltered liquid to bypass media in the filter element. A dynamic seal can help to seal the bypass valve arrangement.
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: January 8, 2019
    Assignee: Donaldson Company, Inc.
    Inventors: Enrico Greco, Francesco Marangoni
  • Patent number: 10106435
    Abstract: A fluid treatment apparatus and a fluid treatment apparatus component include: a treatment chamber (1) having a permeable wall (13), with a fluid outlet section being formed on the permeable wall; the treatment chamber (1) being constructed as: under a working state, the fluid entering the treatment chamber moves at least part of treatment mediums (100) in a direction opposite to the direction in which the treatment mediums tend to move under a non-working state, and the moved treatment mediums are maintained to be a medium bed layer (101) adjoined to the permeable wall.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: October 23, 2018
    Inventor: Yiu Chau Chau
  • Patent number: 10001305
    Abstract: Apparatus for use in a treatment of fluid in a fluid circuit of a heating or cooling system. A vessel (102) defines an open upper end (104), a circulating fluid inlet port (104) in a side wall (105) thereof and a fluid outlet port (106) in a lower end (107) thereof, the lower end (107) providing an internal floor of the vessel (102) and the fluid outlet port (106) open to the internal floor of the vessel (102). The open upper end (103) of the vessel (102) is provided with a removable lid (108) that defines a dosing port (109) and an air vent port (110). A permanent magnet collector (112) for collecting magnetic particles on an external collection surface (113) thereof is removably locatable within the vessel (102). A method of treating fluid in a fluid circuit of a heating or cooling system.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: June 19, 2018
    Assignee: Vexo International (UK) Ltd
    Inventors: Richard Antony Cowley, Darren Lee Wilkinson
  • Patent number: 9789520
    Abstract: A method of cleaning plugged or dirty porous metallic filter elements to regain filter activity, comprising the steps of: steaming a filter element for a first period of time; submerging the filter element in a first solution; and exposing the first solution to ultrasound waves for a second period of time.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: October 17, 2017
    Assignee: Phillips 66 Company
    Inventor: Sundararajan Uppili
  • Patent number: 9675938
    Abstract: A method of cleaning a porous polymeric membrane having a feed side and a permeate side including the steps of introducing a fluid containing a cleaning agent to the permeate side of a membrane allowing the cleaning agent to contact the permeate side of the membrane for a predetermined time, and contact the pores of the membrane, or introducing a fluid containing a cleaning agent to the feed side of a membrane; applying a transmembrane pressure to force the fluid containing the cleaning agent from the feed side to the permeate side of the membrane; allowing the cleaning agent to contact the permeate side of the membrane for a predetermined time, and contact the pores of the membrane. Preferably a concentration gradient between the feed side fluid and the lumen side fluid containing the cleaning agent causes cleaning agent to diffuse into the feed side fluid. Pressure may be applied to the fluid containing a cleaning agent to dislodge, where present, dissolved and undissolved solid from the membrane pores.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: June 13, 2017
    Assignee: Evoqua Water Technologies LLC
    Inventors: Fufang Zha, Zhiyi Cao
  • Patent number: 9539753
    Abstract: The invention relates to a dirt precipitator (100) for a highly viscous medium, having a housing comprising a front housing element (30; 30?) that comprises at least one inlet channel (33) and a rear housing element (20) that comprises at least one outlet channel (23), and having a screen wheel (10; 10?) rotatably mounted between the housing elements (20, 30; 30?) having a number n of screen positions disposed in a ring zone, on each of which at least one screen opening (11.1, . . . , 11.12) having at least one screen insert element is provided. The inlet channel (33), the outlet channel (23), and the screen opening (11.1, . . . , 11.12) are disposed flush one after the other in at least one working position and form a flow channel. In all positions of the screen wheel (10; 10?), more than 50% of the screen openings (11.1, . . . , 11.12) are always able to be permeated, and are impinged by flow from at least one inlet channel and from which at least one outlet channel leads.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: January 10, 2017
    Assignee: Nordson Corporation
    Inventors: Robert Middler, Jan-Udo Kreyenborg, Stefan Wöstmann
  • Patent number: 9486743
    Abstract: Apparatus (8) for filtering, clarifying or polishing, a liquid flow containing finely divided solids. In the apparatus (8), the liquid flow to be filtered is directed to the outer surface of a filter element (3) with high speed and in tangential direction, and thereby, influenced by the generated shearing force, part of the liquid penetrates the filter element (3) and is filtered. More precisely, the apparatus (8) includes a cross-flow tube (2) having a circular cylindrical shape and having apertures directed substantially in tangential direction towards the outer surface of the filter element (3). A method for removing finely divided solids from a liquid flow using such apparatus is also described.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: November 8, 2016
    Assignee: SOFI FILTRATION OY
    Inventor: Pertti Rantala
  • Patent number: 9457297
    Abstract: A filter securing system including a filter unit body housing; at least one tubular filter element positioned in the filter unit body housing, the tubular filter element having a closed top and an open bottom; a dimple in either the filter unit body housing or the top of the tubular filter element; and a socket in either the filter unit body housing or the top of the tubular filter element that receives the dimple in either the filter unit body housing or the top of the tubular filter element to secure the tubular filter element to the filter unit body housing.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: October 4, 2016
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Erik P. Brown, Jeffery L. Haslam, Mark A. Mitchell
  • Patent number: 9421481
    Abstract: A filtering device includes multiple filtering elements (3) with bodies defining longitudinal axes. The filtering elements (3) are arranged adjacent to one another in a housing such that the longitudinal axes extend parallel to one another. The bodies of at least some of the filtering elements (3) have a shape that deviates from a circular cylinder at at least one part of the body length. The filtering elements (3) with bodies having a shape deviating from a circular cylinder have a cross-sectional size at least partially changing from one end to the other end. The filtering elements are oriented in the housing such that the regions of a larger cross-section are associated with the regions of a smaller cross-section in adjacent filtering elements.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: August 23, 2016
    Assignee: HYDAC FILTERTECHNIK GMBH
    Inventor: Michael Sakraschinsky
  • Patent number: 9321013
    Abstract: An artificial “arterio-venous” permeable hollow fiber capillary membrane system for wound treatment is described. The capillary membrane system can be placed onto a wound or under the wound dressing to enable fluid/mass exchange, in turn allowing the regulation of pH and electrolyte levels, the supply of factors/mediators/medications, the removal of secretion and waste material, and the support of therapeutically applied cells in the wound.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: April 26, 2016
    Inventor: Reinhard Bornemann
  • Patent number: 9295933
    Abstract: A filter element may include filter media having an elongated hollow passage extending along a longitudinal axis and between a first end and a second end, with the filter media having an exterior surface. The filter element may also include first and second fins associated with and extending radially from the exterior surface of the filter media. The filter media may include a first filtration zone extending partially around the hollow passage and between the first fin and the second fin, with the first filtration zone being associated with a first portion of the filter media. The filter media may also include a second filtration zone extending partially around the hollow passage and between the first fin and the second fin, with the second filtration zone being associated with a second portion of the filter media.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: March 29, 2016
    Assignee: Caterpillar Inc.
    Inventors: Bryant A. Morris, Vincent P. Caliendo, Philip C. Spengler, Jeffrey R. Ries
  • Patent number: 9248387
    Abstract: A filter cleaning apparatus used in a reaction system including; a reaction tank having a filter, first feed line connected to the filter at one end, a recovery tank connected to the other end of the first feed line, and second feed line connected to the recovery tank at one end, is provided. The filter cleaning apparatus includes; first return line connected the second feed line at one end, first and second reverse cleaning solution tanks connected to the first return line, a first flow rate adjusting valve that can adjust filtered fluid to be supplied to the first reverse cleaning solution tank, a second flow rate adjusting valve that can adjust filtered fluid to be supplied to the second reverse cleaning solution tank, and a switching section that carries either one of the filtered fluids accommodated in these reverse cleaning solution tanks by switching.
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: February 2, 2016
    Assignees: Japan Oil, Gas and Metals National Corporation, INPEX CORPORATION, JX Nippon Oil & Energy Corporation, Japan Petroleum Exploration Co., Ltd., COSMO OIL CO., LTD., NIPPON STEEL & SUMIKIN ENGINEERING CO., LTD.
    Inventors: Atsushi Murata, Eiichi Yamada, Shinji Fukumoto
  • Patent number: 9192880
    Abstract: Embodiments of the invention provide a filter vessel including a housing with an inlet and an outlet, a toroidal-shaped inlet manifold, and a plurality of inlet channels. The toroidal-shaped inlet manifold is in fluid communication with the inlet and is positioned along a circumference of the housing, and the plurality of inlet channels are in fluid communication with the toroidal-shaped inlet manifold.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: November 24, 2015
    Assignee: Porous Media Corporation
    Inventors: Mark Mickan, Carl Hahn, Shane Conrad
  • Patent number: 9084950
    Abstract: A fluid filter including: an upper case provided with an outlet hole; a lower case provided with an inlet hole; and a filter element held between the upper case and lower case, wherein the outlet hole and the inlet hole are arranged opposite to each other. The filter element includes a first filter material which is folded and arranged in a communication part connecting the outlet hole and the inlet hole, and a second filter material which is folded and spaced apart from the communication part, and the retention interval L1 of the first filter material in the fold line direction is smaller than the retention interval L2 of the second filter material in the fold line direction.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: July 21, 2015
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Yasuhiro Saito, Haruaki Sakata, Toshiaki Mori
  • Publication number: 20150136681
    Abstract: The present invention relates to a phase separation element and a phase separation device comprising such a phase separation element, which may be used for separating a biphasic aqueous and organic liquid system irrespective of which liquid is heavier.
    Type: Application
    Filed: June 5, 2013
    Publication date: May 21, 2015
    Inventors: Steve Jordan, Geoff Davies, Sunil Rana
  • Publication number: 20150101976
    Abstract: Disclosed are a hollow fiber membrane module, a filtration apparatus based on the same, and a method for manufacturing the filtration apparatus. The hollow fiber membrane module includes two headers respectively provided with a permeate collecting unit therein, wherein each of the headers has grooves on its two sides, the grooves being extended in a length direction of the hollow fiber membrane. Since one slide rod can simultaneously be inserted into grooves of two adjacent hollow fiber membrane modules, the hollow fiber membrane modules can mutually serve as guides for insertion/ejection thereof. Also, since the grooves formed on the header can serve as insertion holes into which a clamp is inserted, the clamp can be used for coupling between the hollow fiber membrane module and another element and reinforcement of the coupling.
    Type: Application
    Filed: December 17, 2014
    Publication date: April 16, 2015
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Kwang-Jin LEE, Moo-Seok LEE
  • Publication number: 20150101975
    Abstract: A filter element arranged in a filter housing is provided with an annular filter medium flowed through by a liquid medium in a flow direction radial to a longitudinal axis of the filter element. A clean chamber is arranged in the flow direction of the liquid medium downstream of the filter medium. A filtered liquid medium outlet is fluidically connected to the clean chamber. A cylinder-shaped water separating screen is arranged in the clean chamber to separate water contained in the liquid medium. A water outlet opening fluidically connects the clean chamber to a water collecting chamber of the filter housing. A particle filter is arranged at the water outlet opening or arranged between the water outlet opening and the filtered liquid medium outlet of the filter element. The water outlet opening of the filter element is fluidically connected with the water collecting chamber of the filter housing.
    Type: Application
    Filed: October 14, 2014
    Publication date: April 16, 2015
    Inventors: Stefan Eichinger, Martin Veit, Arndt-Udo Rolle
  • Patent number: 8999162
    Abstract: Water treatment systems and methods are provided to minimize membrane fouling and the required maintenance that results therefrom. A water treatment system includes a pressure vessel with a plurality of spaced-apart membranes disposed therein, and an impeller or other means for circulating feed water through the interior of the vessel and past the membranes. Antifouling particles (such as diatomaceous earth or activated carbon) and/or pellets can be added to the feed water inhibit membrane fouling and extend the useful life of the membranes.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: April 7, 2015
    Assignee: Econopure Water Systems, LLC
    Inventors: Diem Xuan Vuong, Michael Sean Motherway, Curtis Roth
  • Patent number: 8999163
    Abstract: A top load liquid filter assembly includes a filter lockout mechanism to ensure that the filter base and cover are not connectable unless there is a proper filter cartridge installed therein. The filter system can also include an automatic drain mechanism and a cartridge retention mechanism. One example embodiment further includes an air bleed vent. A filter cartridge usable in the topload liquid filter assembly includes first and second protrusions and cover-gripper members. Methods of use, installing, servicing, and retaining can be practiced.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: April 7, 2015
    Assignee: Donaldson Company, Inc.
    Inventors: Bradley S. Honermann, John R. Hacker, Kathryn A. Legault, Mark S. Emery, Kurt B. Joscher, Jason P. Johnson
  • Publication number: 20150076051
    Abstract: A filter screen is formed by a first sheet metal frame having one or more cutout sections or a plurality of perforations. A first layer of screening is placed on top of the frame but does not extend to the edges of the frame. An optional second layer of screening may be placed over the top of the first layer such that it extends beyond the perimeter of the first layer but not to the perimeter of the frame. The assembly is then fusion bonded together and rolled into a tubular configuration. Abutting edges of the frame are welded together to form a rigid filter screen.
    Type: Application
    Filed: September 19, 2013
    Publication date: March 19, 2015
    Applicant: Porous Metal Filter
    Inventors: Robert J. Provo, Patrick W. McGrenera, Ruediger Tueshaus, Rick T. Kenney
  • Patent number: 8974569
    Abstract: Disclosed is multi-flow filter cartridge assembly that includes an elongated housing that has axially opposed proximal and distal ends and defines an interior cavity and first, second and third flow paths which extend from the proximal end of the housing to the distal end. The cartridge assembly also includes first, second and third filter elements. The first filter element is disposed within the interior cavity of the housing and conditions fluid that traverses the first flow path from a first inlet port to a first outlet port. The second filter element is disposed within the interior cavity of the housing and conditions fluid that traverses the second flow path from a second inlet port to a second outlet port. Lastly, the third filter element is also disposed within the interior cavity of the housing and conditions fluid that traverses the third flow path from a third inlet port to a third outlet port.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: March 10, 2015
    Inventors: Paul A. Matula, Dominick Mastri, James R. Parys, Ralph Stearns, Johnnie H. Copley, Christopher Estkowski
  • Patent number: 8974668
    Abstract: A membrane element consisting of a hollow fiber stack (HF stack) comprising a plurality of substantially equally spaced hollow fibers (HFs) comprising multiple alternate rows of HFs comprising first ends extending through and between contact structures comprising solid thermoset material, each HF consisting of a hydrophilic semipermeable membrane defining an elongated lumen, each HF comprising a portion that extends from one contact structure to an opposed contact structure, wherein the HFs in alternate rows are aligned with the spaces in adjacent rows, forming a hexagonal pattern comprising repeating adjacent and/overlapping hexagons, wherein each hexagon comprises a central hollow fiber (central HF) surrounded by six immediately adjacent HFs defining a hexagonal perimeter comprising six sides, the six immediately adjacent HFs being substantially equally spaced from one another and substantially equally spaced from the central hollow fiber, wherein the spacing is adapted to maintain a Reynolds' number of abo
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: March 10, 2015
    Inventor: Maher Isaac Kelada
  • Publication number: 20150060348
    Abstract: Provided are a hollow-fiber membrane unit in which the membranes are prevented from decreasing in permeation rate and the membrane area per unit volume has been rendered suitable and which can hence treat water in an increased rate and a hollow-fiber membrane module which is for use in such hollow-fiber membrane unit. The hollow-fiber membrane module comprises either a hollow-fiber membrane sheet composed of hollow-fiber membranes disposed in a sheet arrangement or a stack of such sheets and a box-shaped water collection member which holds the hollow-fiber membrane sheet or stack, wherein one surface of the water collection member has an opening that is filled with a fixing resin (potting resin) and is for fixing the hollow-fiber membrane sheet stack.
    Type: Application
    Filed: April 2, 2013
    Publication date: March 5, 2015
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Makoto Ideguchi, Manabu Sasakawa, Yoshihito Nakahara, Nobuyasu Ueno, Toshinori Tanaka, Kazumi Akagawa, Masato Takeuchi, Zhuoyi Zou
  • Publication number: 20150053602
    Abstract: The present invention provides a bulk liquid container (1) for the storage and distribution of water to a community as drinking water. The container comprises a container housing for holding water, the housing having a substantially capsular form; an output valve (2) arranged to release water from the container; a water filter (101) arranged to filter water passing from the internal volume of the container out of the container through the output valve, the filter comprising one or more membranes and comprising a plurality of sub-groups of hollow fibres (61) which are effective to pass water in preference to air under the influence of a pressure differential; and a pump for raising the internal pressure of the container. The invention further provides a filter (101) for use in the container.
    Type: Application
    Filed: April 9, 2013
    Publication date: February 26, 2015
    Applicant: PRITCHARD IP LIMITED
    Inventor: Michael William Pritchard
  • Patent number: 8961791
    Abstract: The present relates to a molecular exchange device. In particular, the present invention relates to a molecular exchange device comprising an outer tube extending from an approximal end to a distal end of the device; an inner tube defining at least one fluid passageway, the inner tube positioned concentrically within the outer tube and the area between the inner and the outer tube defining at least one fluid passageway; and a projection positioned within the area between the inner and the outer tube, wherein the projection prevents displacement of the inner tube with respect to the outer tube.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: February 24, 2015
    Assignee: Probe Scientific Limited
    Inventors: Mark Thomas O'Connell, Stewart Jeffrey Block, Rodney Ruston
  • Patent number: 8956537
    Abstract: Disclosed are a hollow fiber membrane module, a filtration apparatus based on the same, and a method for manufacturing the filtration apparatus. The hollow fiber membrane module includes two headers respectively provided with a permeate collecting unit therein, wherein each of the headers has grooves on its two sides, the grooves being extended in a length direction of the hollow fiber membrane. Since one slide rod can simultaneously be inserted into grooves of two adjacent hollow fiber membrane modules, the hollow fiber membrane modules can mutually serve as guides for insertion/ejection thereof. Also, since the grooves formed on the header can serve as insertion holes into which a clamp is inserted, the clamp can be used for coupling between the hollow fiber membrane module and another element and reinforcement of the coupling.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: February 17, 2015
    Assignee: Kolon Industries, Inc.
    Inventors: Kwang-Jin Lee, Moo-Seok Lee
  • Publication number: 20150034541
    Abstract: A fluid filter cartridge is disclosed for filtering lubricating oil. The fluid filter cartridge includes a first filter medium having a tubular shape defining a central conduit and a second filter medium occluding the central conduit.
    Type: Application
    Filed: July 30, 2014
    Publication date: February 5, 2015
    Inventors: Vincenzo COGNETTA, Giuseppe Maccarrone
  • Publication number: 20150027942
    Abstract: In one aspect, assemblies for removing water from hydrocarbon liquids are described herein. An assembly described herein comprises a coalescer element having interior and exterior surfaces and comprising a porous support tube and a medium positioned within the porous support tube, the medium having a structure for coalescing water droplets in the hydrocarbon liquid passing though the medium. A separation medium encloses the exterior surface of the coalescer element and is spaced apart from the exterior surface of the coalescer element. The separation medium comprises a barrier region for collecting coalesced water droplets in the hydrocarbon liquid exited from the coalescer element and a release region for releasing coalesced water droplets from the assembly.
    Type: Application
    Filed: July 25, 2014
    Publication date: January 29, 2015
    Inventors: Ruijun Chen, Karie Garner, Tim Mills
  • Publication number: 20150014237
    Abstract: A filter element for filtering a fluid, in particular a urea solution, has an end disk provided with an opening. A filter medium is provided that closes off the opening and enables flow of the fluid between a clean side and a raw side of the filter element.
    Type: Application
    Filed: June 23, 2014
    Publication date: January 15, 2015
    Inventor: Christian Kocksch
  • Publication number: 20140366493
    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: Application
    Filed: January 18, 2013
    Publication date: December 18, 2014
    Inventor: Yuichi Takahashi
  • Patent number: 8900452
    Abstract: This self-centering device for cylindrical elements such as filters, coalescers and separators having a central axis and adapted for placement with an open end over and in communication with an aperture with a rod extending from its center incorporates or includes a notched member having an open side adapted for lateral capture of the rod along with a holding structure for holding the notched member in position proximate the central axis. The holding structure includes a connector for connection of the self-centering element to the cylindrical element, and a dividing member adapted to divide the open end of the cylindrical element into portions in communication with the open side and portions not in communication with the open side.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: December 2, 2014
    Inventors: Richard E. Honchen, John Zuniga
  • Patent number: 8888958
    Abstract: A pressure diffuser washer comprising: an outer wall, an inner wall adjacent to the outer wall, the inner wall defining annular baffle chambers between the outer wall and the inner wall, wherein each of the annular baffle chambers is configured to connect to a source of a wash liquid, a reciprocating screen assembly adjacent to the inner wall, the reciprocating screen assembly defining a first annular chamber between the inner wall and the reciprocating screen assembly, an area in the inner wall defining a gap associated with each of the annular baffle chambers, wherein the wash liquid from an annular baffle chamber flows through the gap into the first annular chamber, and an annular baffle screen plate covering the gap, wherein the annular baffle screen plate defines openings sized to prevent rocks and other large particulate debris from entering the annular baffle chambers.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: November 18, 2014
    Assignee: Andritz Inc.
    Inventors: Grant Bechard, Keith Vogel, Jay Sheerer, Edward James Cummings, Carl Luhrmann
  • Patent number: 8883006
    Abstract: A fluid treatment system for treating feed water includes a first tubular member having first and second ends, at least one second tubular member having first and second ends, a pump positioned within the first tubular member, a filtering membrane positioned within the second tubular member, a first end cap for receiving the first ends of the first and second tubular members, and a second end cap for receiving the second ends of the first and second tubular members.
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: November 11, 2014
    Assignee: Kinetico Incorporated
    Inventors: Jerome Kovach, Stuart L. Park, Peter R. Halemba
  • Patent number: 8877054
    Abstract: A high capacity suction strainer for a nuclear reactor has a frame, a flow-through plenum, and a filter array. The flow-through plenum is mechanically mounted to the frame and has a plurality of inlets and an outlet. The filter array is also mechanically mounted to the frame and has a plurality of filter groupings in fluid communication with the inlet on the plenum.
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: November 4, 2014
    Assignee: Transco Products Inc.
    Inventors: Charles Andersen, Edward Wolbert, Nicholas Hawkins
  • Patent number: 8877057
    Abstract: A filter for use with bulk filtration includes filters arranged in parallel flow and a manifold arrangement. The manifold arrangement has a first pipe within a second pipe. An inlet channel conveys unfiltered fluid to the filters, and an outlet channel conveys filtered fluid from the filters. The inlet channel is an interior volume between an outside surface of the first pipe and an inside surface of the second pipe. The outlet channel is an interior volume of the first pipe. Methods of servicing and filtering are provided.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: November 4, 2014
    Assignee: Donaldson Company, Inc.
    Inventors: Andre Wessels, Bradley Richard De Vaux, Robin Glisson, Philip Edward Johnson, Michelle D. Weiland
  • Publication number: 20140305861
    Abstract: A liquid filter assembly is provided. The preferred assembly includes a serviceable filter cartridge having a primary filter section and a secondary or bypass filter section. The preferred assembly includes a bypass valve arrangement and a suction filter arrangement. An optional valve, to allow flow from an interior of the assembly to a reservoir if needed, is provided. Preferred serviceable filter cartridges are shown.
    Type: Application
    Filed: January 17, 2014
    Publication date: October 16, 2014
    Applicant: Donaldson Company, Inc.
    Inventor: Claudio Formica
  • Patent number: 8858796
    Abstract: A membrane filtration assembly (10) including having a filtrate carrier (9) for minimizing backwash. The membrane filtration assembly includes a membrane module (5) having one or more permeable hollow membranes (6) supported therein by an upper header (7) and a lower header (8). The filtrate carrier (9) extends between the upper (7) and lower (8) headers to allow filtrate to be collected from either or both ends of membranes (6). A filtrate collection chamber (18) is associated with the upper (7) and lower headers (9) and in fluid communication with lumens of the membranes (6) for collecting filtrate withdrawn through said membrane lumens. A filtration chamber (11) is provided for receiving feed liquid to be applied to the surface of membranes (6) within the module (5). The filtration chamber (11) includes an open end for receiving the feed liquid. The open end is located beyond the height of the module (5) to enable gravity feed.
    Type: Grant
    Filed: August 22, 2006
    Date of Patent: October 14, 2014
    Assignee: Evoqua Water Technologies LLC
    Inventors: David John Cox, Warren Thomas Johnson
  • Publication number: 20140263106
    Abstract: Method and apparatus are provided for treating and removing particulate matter from fluid or treating and removing fluid from a recoverable particulate matter from fluid circulating into, through and out of an industrial operation, and for washing a disposable cartridge filter used therein. The influent fluid is maintained at a flow rate such that the differential pressure across the cartridge filter is no greater than 10 psi to prevent the buildup of non-porous filter cake. A pressure detecting mechanism and method is also provided to detect the amount of deposited particulate matter inside the cartridge filter, so that an operator can determine whether the cartridge filter should be taken out to remove or recycle the deposited particulate matter.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: FILTRATION TECHNOLOGY CORPORATION
    Inventors: John HAMPTON, Greg WALLACE
  • Publication number: 20140263027
    Abstract: A filter assembly includes multiple filter element housings with each filter housing receiving a filter element therein; a manifold supporting the multiple filter element housings; and a filter element housing coupling to attach each filter element housing to the manifold, each filter element housing coupling including a filter housing retainer ring bolted to the manifold to couple the filter housing to the manifold.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Inventor: Michael J. Schmitt
  • Patent number: 8834717
    Abstract: The invention relates to a head plate, fixing the end of a tube bundle with a number of, in particular, porous tubes with a membrane in sealing manner. The head plate is made from a metal or a metal alloy with a melting point lower than the lowest failure temperature for a tube material and/or the membrane.
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: September 16, 2014
    Assignee: Whitefox Technologies Limited
    Inventors: Robert Heggemann, Rolf Siekaup
  • Publication number: 20140231367
    Abstract: Provided is an improved filtration module assembly comprising a vessel having a filtration cartridge disposed within it and a header coupled to an end of the vessel, the header including a housing having an open-ended upper end and a lower end, and an end cap including a portion that mates with a complimentary structure defined by the inner all of the open ended upper end of the housing to removable engage with the housing and the end cap may further define a passageway for fluid to flow out of the vessel. The filtration module assembly may enable an improved manifold arrangement used to communicate fluids to and from a filtration system comprising a plurality of such modules and the configurations of the present invention may facilitate improved operation of such filtration systems.
    Type: Application
    Filed: September 17, 2012
    Publication date: August 21, 2014
    Inventors: Bruce Gregory Biltoft, Michael Collignon, Robert James McMahon
  • Patent number: RE46080
    Abstract: A filtering apparatus includes a pot-type filter housing (10), a filter element (28) accommodated in the housing, a holding mechanism (38) disposed in the filter housing (10) to removably fix the filter element along its longitudinal axis, and a sealing device (60) that seals between a lid (20) of the filter housing (10) and the filter element (28). The holding mechanism (38) is provided with cooperating holding elements embodied on the interior face of the filter housing (10) as well as on the filter element (28). The filtering apparatus dispenses with the need for O-seals that are known in prior art and extend in a radial direction between the filter element and the filter head as a housing lid because the sealing device (60) encompasses at least one sealing edge (62) or sealing surface placed parallel to the longitudinal axis in a radial direction and seals under the effect of the pressure applied it by the holding mechanism (38).
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: July 26, 2016
    Assignee: HYDAC FILTERTECHNIK GMBH
    Inventors: Patrick Maurer, Norbert Sann