External Cage-type Support Patents (Class 210/485)
  • Patent number: 10821380
    Abstract: Corrugated screen filters and related method of fabrication whereby an available filter surface is increased so as to allow an increase a flow capacity of the corrugated screen filter. The corrugated screen filter can comprise a plurality of rods forming a series of alternate and angular ridges and grooves on a surface of the filter screen. The filter screen can be configured to have longitudinal corrugations only on an exterior surface of the filter screen or alternatively, the filter screen can be configured to have longitudinal corrugations only on an interior surface of the filter screen. The alternate angular ridges and grooves can form corrugations in a variety of configurations including, but not limited to, a sinusoidal wave structure, a triangular wave structure, a rectangular wave structure, a trapezoidal wave structure, or the like.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: November 3, 2020
    Inventor: Philip Schofield
  • Patent number: 10092870
    Abstract: An assembly is disclosed. The assembly includes a filter frame including one or more cutouts for permitting airflow therethrough. The assembly further includes one or more vertical support members and one or more horizontal support members, wherein the one or more vertical support members and the one or more horizontal support members are fixed to a first side of the filter frame.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: October 9, 2018
    Assignee: TRANE INTERNATIONAL INC.
    Inventors: David B. Sweet, Thomas Nathan McLain, Joseph A. Wells, Ying-Zhong Zhang, Donald F. Novak, Aaron Decker, James T. Little
  • Patent number: 9644580
    Abstract: A filter element (10) is provided with open filter bellows (16) of a filter medium (18). The filter element (10) has at least one longitudinal mating surface (40) which is directed with at least one direction component axially to an element axis (14) of the filter element (10) and which is in contact with a corresponding longitudinal mating surface of the filter housing (11) for securing the filter element (10) axially to the element axis (14). The filter element (10) has at least one transverse retaining surface (52) which is directed with at least one direction component across the element axis (14). The transverse retaining surface (52) is separated from the at least one longitudinal retaining surface (40) and may be in contact with a corresponding transverse mating surface (56) of the filter housing (11) for securing the filter element (10) across the element axis (14).
    Type: Grant
    Filed: July 13, 2014
    Date of Patent: May 9, 2017
    Assignee: MANN+HUMMEL GMBH
    Inventors: Pascal Neef, Werner Blossey, Mario Rieger, Robert Hasenfratz, Nadine Sorger, Andreas Weber
  • Patent number: 9399858
    Abstract: An intake screen assembly including an intake member, a screen support member, and a screen member coupled to the screen support member. The screen member may be formed from a material, such as copper-nickel, that is different from a material, such as stainless steel, used to form the intake member and/or the screen support member. The intake screen assembly may include corrosion protection members for preventing contact between the components of the screen assembly that are formed from dissimilar materials. The assembly may be formed by coupling the screen support member to the intake member, and coupling the screen member to the screen support member.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: July 26, 2016
    Assignee: Bilfinger Water Technologies, Inc.
    Inventors: Richard Charles Maxson, Gerald Allan Berry, Garth Hayes Saul, Michael Richard Ekholm, Timothy Charles Wolf
  • Patent number: 9320998
    Abstract: A collapsible HVAC filter that includes a pleated filter media pack with ends that attach to ends of a planar filter frame member. The structure collapses by folding the filter frame member along score lines and compressing the pleated filter media while the media and frame member are attached. The collapsed components occupy little space relative to the expanded filter, and can be expanded to form a completed filter with little effort required by the end user. Most of the filter media is collapsed in a generally U-shaped channel formed from the folded filter frame member.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: April 26, 2016
    Assignee: Columbus Industries, Inc.
    Inventor: Chrystal B. Gillilan
  • Patent number: 9022228
    Abstract: A domestic appliance filter for use in a laundry treatment device includes a basic filter material with a hydrophobic coating for filtering out matter from a process water duct or a process air duct. The basic filter material includes a material which is resistant to temperatures of 160° C. or more and the hydrophobic coating on the basic filter material effects a surface energy of less than 35 mN/m.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: May 5, 2015
    Assignee: BSH Bosch und Siemens Hausgeräte GmbH
    Inventor: Klaus Grunert
  • Publication number: 20150096933
    Abstract: A filtration article and a method for manufacture of the filtration article. The filtration article includes a filtration medium that includes a porous membrane. A thermoplastic end cap component is potted onto the filtration medium along the peripheral edge of the filtration medium. To enhance the quality of the seal between the end cap component and the filtration medium, a thermoplastic material is imbibed through at least a portion of the thickness of the filtration medium along the peripheral edge. Methods for the manufacture of such a filtration article and the filtration medium are also provided.
    Type: Application
    Filed: October 7, 2013
    Publication date: April 9, 2015
    Applicant: W. L. Gore & Associates, Inc.
    Inventor: Bradley Marshall McClary
  • Patent number: 8950588
    Abstract: According to an aspect of the present invention, there is provided a filter including: a belt shaped frame formed of a resin, an opening being provided inside the frame; a pair of link portions formed on the frame at both distal ends thereof to be engagable with each other; and a filtering member provided in the opening, wherein the frame is formed to have a flat plate shape or a curved shape that has a center angle equal to or less than 180 degrees in a state where the pair of link portions are not engaged, and wherein a plurality of grooves are formed on at least one surface of the frame at intervals along the longitudinal direction.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: February 10, 2015
    Assignee: Piolax Inc.
    Inventor: Kenji Yonezawa
  • Patent number: 8900339
    Abstract: Certain embodiments of the invention may include filters, systems, and methods for reducing can velocity. According to an example embodiment, a filter is provided for filtering particles from air or fluid. The filter includes a first end and a second end, wherein the first end includes an aperture; one or more sections of pleated filter media including a plurality of pleats formed in a substantially conical shape about an axis and around an inner void region in communication with the aperture, wherein a diameter associated with the first end aperture is greater than a diameter associated with the second end; and one or more radial support regions in circumferential contact with at least one of an outer surface of the filter media, wherein spacing of at least some of the plurality of pleats are maintained at least in part by the one or more radial support regions.
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: December 2, 2014
    Assignee: BHA Altair, LLC
    Inventors: Andrew Alan Ray, Martin Gregory Hatfield
  • Publication number: 20140246374
    Abstract: Disclosed is a process for fabricating microporous, open-cell foam of a hierarchical structure from a composition comprising a foamable liquid polymer, a curing agent for the polymer, a blowing agent and a filler that functions as a viscosity modifier for the foam-forming composition. By appropriate selection of materials, microporous, open-cell polymer foam is producible which, due to its hydrophobic character, is capable of absorbing relatively low surface tension liquids, e.g., hydrocarbon oils, and reject high surface tension liquids, e.g., water. These foams may be applied in maritime oil spill clean-up operations.
    Type: Application
    Filed: February 28, 2014
    Publication date: September 4, 2014
    Inventors: Shahab Shojaei-Zadeh, Michael Fechtmann
  • Patent number: 8801925
    Abstract: A removable device that ensures that the port of a filter cartridge is liquid tightly sealed to the port of the head of a housing even when there is insufficient room beneath the bowl to allow one to physically secure the cartridge port to the head port before securing the head and bowl together. The invention uses one or more removably attached alignment devices to center the cartridge in the bowl and maintain it at a height sufficient to ensure that the two ports are aligned and liquid tightly sealed to each other when the bowl and head are mated together.
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: August 12, 2014
    Assignee: EMD Millipore Corporation
    Inventors: Joseph Almasian, Jeremy Perreault, Szyk Martin
  • 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
  • Publication number: 20140197093
    Abstract: A disc segment adapted to be attached to other disc segments to form a disc assembly, the disc segment including an isosceles trapezoid frame. The frame comprises a left side rail and a right side rail, and a plurality of spaced apart parallel horizontally extending ribs connected between the side rails. The frame defines a first disc side and an opposite second disc side, each disc side including a corrugated left bottom clamp list adjacent the left side rail and supported by the ribs, and a corrugated right bottom clamp list adjacent the right side rail and supported by the ribs. Each disc side also includes a corrugated wire mesh supported by the left and right clamp lists, and supported by the frame ribs.
    Type: Application
    Filed: August 25, 2012
    Publication date: July 17, 2014
    Inventors: Karl Gabrielsson, Tony I. Bjorkenius, Gregory G. Gilmore
  • Patent number: 8741139
    Abstract: The present device is a detachable core for use with a cylindrical filter cartridge. The core includes a wire frame including at least two vertical struts oriented along a longitudinal direction. The wire frame includes an upper ring and a lower ring mounted to the distal ends of the vertical struts and further includes an upper flange and a lower flange mounted to the upper and lower rings respectively, wherein the lower flange is detachably mounted to the lower ring. Preferably the lower ring includes a gap in the lower ring to enable resilient compression of the ring by squeezing the lower ring in a radial inward direction prior to engagement with the lower flange. Preferably the cartridge filter includes elastomeric end caps and the cooperating rings and flanges are non-circular such that the elastomeric end caps conforms to the non-circular shape of the upper and lower flanges.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: June 3, 2014
    Inventors: Paul LaCroix, Barry LaCroix
  • Patent number: 8679329
    Abstract: A filter system for a storm water sewer includes a flat mount frame with inwardly projecting support wires and seats on an internal ledge of a grate frame supporting a removable grate. A fabricated circular wire basket has welded cross wires defining openings in side and bottom walls and is lined with a porous filter fabric for collecting silt within storm water flowing through openings in the grate. The wire basket has upwardly projecting bent wire portions hooked onto the support wires of the mount frame and define overflow passages and handle openings for removing the mount frame and the basket after the grate is removed. A smaller and lined lift-out wire basket is supported within a lower portion of the wire basket attached to the mount frame, and each wire basket may be compressed laterally into an oval configuration for use with a rectangular mount frame.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: March 25, 2014
    Inventor: Gregory M. Vreeland
  • Publication number: 20130327696
    Abstract: A filter element for fuel, oil or other engine fluids, with an endplate that is designed to create flow paths for both clean and dirty regions. The filter element is part of a spin-on filter that is attachable to a filter head in an engine and that filters fuel, oil or other engine fluids. A pre-fill cap can be integrally incorporated onto the endplate to permit pre-filling and installation without removing components.
    Type: Application
    Filed: March 14, 2013
    Publication date: December 12, 2013
    Applicant: CUMMINS FILTRATION IP, INC.
    Inventors: Ismail BAGCI, Aaron WELLS, Amos SAMUEL
  • Publication number: 20130306547
    Abstract: Pleated filtration media and filtration devices generally include a filter media radially disposed about the annular perforated inner core, the filter media comprising a plurality of circumferentially disposed linear pleats extending from the inner core to a constant height (h) defined by an outer diameter; and one or more intermediate pleats circumferentially disposed between adjoining linear pleats, wherein each one of the intermediate pleats has a height less than the constant height, and wherein the height of the intermediate pleats progressively decreases in a clockwise or a counter clockwise direction. Also disclosed are methods for increasing surface area of a pleated filtration media.
    Type: Application
    Filed: May 16, 2012
    Publication date: November 21, 2013
    Applicant: LYDALL, INC
    Inventor: DOUGLAS A. D. NORRIS
  • Patent number: 8584868
    Abstract: A filter medium for removing particles from a fluid flow has a pre-filter layer and a fine-filter layer joined to each other in the flow direction. A first supporting layer is attached to the unfiltered side of the pre-filter layer and a second supporting layer is attached to the filtered side of the fine-filter layer in order to absorb the longitudinal and transverse forces in the event of tensile loading. The traverse force absorbing layer has a greater bending stiffness in a traverse direction while the longitudinal force absorbing layer has a greater bending stiffness in a longitudinal direction.
    Type: Grant
    Filed: September 17, 2011
    Date of Patent: November 19, 2013
    Assignee: Mann+Hummel GmbH
    Inventors: Heiko Wyhler, Jochen Reyinger, Klaus Gehwolf
  • Patent number: 8561810
    Abstract: A filter cartridge includes a housing, a lid, a filter element and a positioning cylinder. The lid is provided for covering an opening of the housing. The filter element is disposed in the housing. The positioning cylinder together with the filter element is disposed in the housing and defining a passageway for reception of the filter element. Further, the positioning cylinder includes a plurality of bulging portions disposed about the passageway and each protruding toward a centerline axis of the passageway. The bulging portions of the positioning cylinder have their highest points equally spaced apart from the centerline axis of the passageway.
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: October 22, 2013
    Inventor: Fu-Chung Tsai
  • Patent number: 8557121
    Abstract: A system and method for capturing ecologically harmful substances in the nature of hydrocarbons from the surface of a body of water or from the ground adjacent a landfill or waste dump or from a shoreline of a body of water into which residual waste fluids from an adjacent ground leakage is passed. The system and method including a plurality of modular traps. The traps having a side, end, top and bottom panels constructed of a material that allows fluid flow therethrough.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: October 15, 2013
    Inventor: Joseph B. Mendes
  • Patent number: 8544657
    Abstract: A filter system for removing contaminants from oil based industrial liquids and the like includes a support tube with a permeable sidewall through which the industrial liquid flows in an inside out direction. A multilayer coalescence media surrounds the support tube, and includes at least one layer of a non-woven fibrous material that is partially wettable by the dispersed water in the industrial liquid, and commences coalescence of the same to form small primary water droplets, and at least one sheet of a precisely woven monofilament fabric stacked on the downstream side of the non-woven material. The woven fabric is substantially wettable by the dispersed water, and has a fixed open mesh with uniformly sized and spaced apart pore openings which continue to coalesce the primary water droplets into large water drops which fall from the filter for collection along the bottom of the apparatus.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: October 1, 2013
    Assignee: Kaydon Custom Filtration Corporation
    Inventors: Ruijun Chen, William J. Martin
  • Patent number: 8528747
    Abstract: Solid phase extraction (SPE) disks may be manufactured by providing a suspension comprising glass microfibers and a suspension comprising one or more sorbents and forming a disk by combining the suspensions or by layering the suspensions. This may be followed by a drying procedure to create the finished disk. A disk mold including a collar and plug may be used to establish the size and shape of the disk. Examples of various constructions and processes for forming the disks are provided.
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: September 10, 2013
    Assignee: Horizon Technologies, Inc.
    Inventors: Kevin Dinnean, Robert S. Johnson, Steve J. MacDonald
  • Patent number: 8506667
    Abstract: Certain embodiments of the invention may include filters and methods for imparting structural support to a pleated filter material. According to an example embodiment, the method includes forming a filter structure from one or more sections of pleated filter media, wherein the filter structure comprises one or more filter pleats. The method also includes extruding a banding material to form one or more radial support regions in at least circumferential contact with at least one of an inner or an outer surface of the filter structure, and maintaining spacing between the one or more filter pleats of the filter structure with the one or more radial support regions.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: August 13, 2013
    Assignee: General Electric Company
    Inventors: Przemyslaw Krzysztof Nikolin, Jamison William Janawitz, Jason Mei
  • Patent number: 8486264
    Abstract: Housings for reverse osmosis filter cartridges and methods of making the same. The housings include: (1) a hollow cylindrical liner formed of a thermoplastic polymer that is adapted to surround a reverse osmosis filter cartridge; (2) a hollow head assembly that includes a transition collar portion formed of a thermoplastic polymer that is joined to said liner and a barrel portion formed of a chopped glass fiber-filled polymer that is overmolded onto said transition collar portion; (3) an end plug that is adapted to be received within an opening in the barrel portion; and (4) an overwrap layer comprising wound glass filaments and a polymeric resin that covers the outer surfaces of the liner and head assembly.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: July 16, 2013
    Assignee: Enpress, LLC
    Inventors: Douglas S. Stolarik, Douglas M. Horner, Michael P. Mormino, Robert John Pristas
  • Publication number: 20130161253
    Abstract: The present disclosure describes a means to provide structural reinforcement for spiral wound membrane elements. The reinforcement includes a wire and, optionally, an outer wrap. The wire is wrapped around an outer layer of the spiral wound membrane layer and reinforces the spiral wound membrane element. The wire is made from materials that do not deform substantially during sanitization procedures. The outer wrap is wrapped around the wire and limits unsanitary areas of tight tolerance between the perimeter of the spiral wound membrane element and a housing.
    Type: Application
    Filed: December 21, 2011
    Publication date: June 27, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventor: Dean David MARSCHKE
  • Publication number: 20130146528
    Abstract: The invention relates to a filter element for filtering fluids, comprising a flat support structure which forms the wall of a support tube (1) which surrounds the exterior and/or interior of a filter medium and has through-flow apertures (5) forming a perforation pattern (3), at least some of the through-flow apertures (5) having a substantially polygonal basic cross-section. The filter clement is characterized in that the polygonal basic cross-section is in each case determined by a plurality of side lines (13) and a plurality of imaginary corners (6) defined in each case by side lines (13) extending in pairs towards one another. In the region of the imaginary corners (6), the two corresponding side lines (13) are connected to one another by a curved line (11).
    Type: Application
    Filed: July 22, 2011
    Publication date: June 13, 2013
    Inventors: Volker Grobe, Uwe Fries
  • Patent number: 8419933
    Abstract: A dialysis system includes a first fluid heater, a second fluid heater, a supplemental power source and a logic implementer. The logic implementer is configured to use the supplemental power source such that when the first and second heaters are powered simultaneously, a collective current draw does not exceed a maximum allowable current draw of a branch power source powering the system.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: April 16, 2013
    Assignees: Baxter International, Inc., Baxter Healthcare S.A.
    Inventors: Justin Rohde, William W. Han
  • Patent number: 8419818
    Abstract: A protective device is provided for an air filter that is substantially cylindrical and is intended to equip in particular a generating set. The filter is intended to be press fitted to a duct of said set. The protective device includes at least two portions that are securable radially on the filter in order to form a protective case surrounding the filter.
    Type: Grant
    Filed: January 4, 2008
    Date of Patent: April 16, 2013
    Assignee: Cummins Filtration
    Inventor: Emmanuel Page
  • Patent number: 8388843
    Abstract: The present invention relates to a device having two or more separate filtration layers that can be independently tested for integrity yet which allow for serial filtration through the two or more layers to obtain the desired characteristics such as retention. The device is made of two or more filtration areas, each containing one filter layer. Each area has one filtration layer and a first endcap bonded to a first end of the filter and a second endcap bonded to a second end of the filter. The areas are arranged concentrically around each other such that the first area is inward of the second area which is inward of a third area and the like. Each area is formed separately and integrity tested separately before final assembly. The first area is slid into the inside of the second area and then the two endcaps are either bonded to each, bonded to a third overall endcap or overmolded by a third endcap.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: March 5, 2013
    Assignee: EMD Millipore Corporation
    Inventor: Kevin Rautio
  • Patent number: 8388849
    Abstract: An adjustable and removable skimming assembly is provided for attaching to the bow of a watercraft. When mounted, the skimming assembly presents vertically orientated starboard, port and bow cages that house oil absorbent padding. The cages with the positioned pads are largely porous so that at slow watercraft velocities, the water flows through the pads but the oil is retained within the pads across a substantially horizontal plane. As the pads become oil saturated along this common plane, the vertical cages are adjusted to expose a section of the pad that is not saturated. This process is repeated until the entire pad surface is saturated. The resistance force created by the water against the starboard and port cages during movement is countered by a plurality of tethering cables extending from the structural members attached to the bow of the watercraft to the outer edges of the cages.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: March 5, 2013
    Inventor: John Morgan Sherman
  • Publication number: 20130043171
    Abstract: A storm drain full capturing system is provided for filtering trash and debris and similar contaminates from a stream of water passing through a storm drain. The capturing system comprises of a control gate panels having a multiplicity of openings mounted adjacent to the sidewalls of a storm drain such that the panels lies adjacent to an outlet through which water flow passing to the storm drain thereof, but filters trash and debris, a composite filter fits relatively close to the outlet and the adjacent sidewall and permits water to flow through the openings thereof, but filters polluted contaminates, and an insert composite collection system for trash and debris is held in place by a removable frame plate, configured to be suspended adjacent to a curb inlet and can be serviced through a conventional manhole entry.
    Type: Application
    Filed: August 20, 2011
    Publication date: February 21, 2013
    Inventor: Saleh Khalil
  • Publication number: 20130043182
    Abstract: A filter for filtering water includes a compound material installed between the upper supporting seat and the lower supporting seat; the compound material being formed with an high density fiber layer, an active carbon layer surrounding the high density fiber layer and a fiber layer surrounding the active carbon layer; the upper supporting seat having a cover plate, an inner ring, an middle ring and an outer ring; the lower supporting seat having a cover plate; an inner ring; a middle ring and an outer ring; the high density fiber layer being installed between the platforms of the upper and lower supporting seat; the active carbon layer being installed between the fiber filtering material of the upper supporting seat and the fiber filtering material of the lower supporting seat; and the fiber layer being installed between the upper and lower supporting seat.
    Type: Application
    Filed: September 11, 2012
    Publication date: February 21, 2013
    Inventor: Pin-Yi Chung
  • Patent number: 8377298
    Abstract: Housings for reverse osmosis filter cartridges and methods of making the same. The housings include: (1) a hollow cylindrical liner formed of a thermoplastic polymer that is adapted to surround a reverse osmosis filter cartridge; (2) a hollow head assembly that includes a transition collar portion formed of a thermoplastic polymer that is joined to said liner and a barrel portion formed of a chopped glass fiber-filled polymer that is overmolded onto said transition collar portion; (3) an end plug that is adapted to be received within an opening in the barrel portion; and (4) an overwrap layer comprising wound glass filaments and a polymeric resin that covers the outer surfaces of the liner and head assembly.
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: February 19, 2013
    Assignee: Enpress, LLC
    Inventors: Douglas S. Stolarik, Douglas M. Horner, Michael P. Mormino, Robert John Pristas
  • Publication number: 20130008847
    Abstract: The disclosed subject matter is concerned with a screen-type filter element, and a method for its manufacture. The screen type filter comprises a substantially rigid screen-bearing skeleton and at least one fine screen sheet material extending within or over the skeleton and secured thereto by a plurality of enveloping ribs, the enveloping ribs being applied over one face of the filter screen sheet to thereby support it at discrete portions and secure it to the skeleton.
    Type: Application
    Filed: March 1, 2011
    Publication date: January 10, 2013
    Applicant: AMIAD WATER SYSTEMS LTD.
    Inventors: Boaz Zur, Shahar Nuriel, Ruven Shtekelmacher, Yitzhak Sabag, Ami Kotler, Simeon Shraer, Yuval Shamir
  • Publication number: 20120205305
    Abstract: A filter element, and filter apparatus, include a filter pack, a seal member, and a seal support frame operatively connecting the seal member to the filter pack. The seal support frame includes an annular extension, which is preferably canted at an oblique angle to a longitudinal axis, for supporting the seal member. The seal support frame also preferably includes a first end thereof including the annular extension, and a second end thereof spaced from the first end thereof along the longitudinal axis, with the first and second ends of the seal support frame joined by a hub of the outer peripheral sidewall of the seal support frame to define a cavity within the seal support frame for receiving the filter pack. The first and second ends of the seal support frame, and the filter pack are preferably joined and sealed to one another by a single bead of adhesive.
    Type: Application
    Filed: April 25, 2012
    Publication date: August 16, 2012
    Applicant: Baldwin Filters, Inc.
    Inventors: Gene W. Brown, Steven J. Merritt
  • Publication number: 20120180444
    Abstract: Certain embodiments of the invention may include filters and methods for imparting structural support to a pleated filter material. According to an example embodiment, the method includes forming a filter structure from one or more sections of pleated filter media, wherein the filter structure comprises one or more filter pleats. The method also includes extruding a banding material to form one or more radial support regions in at least circumferential contact with at least one of an inner or an outer surface of the filter structure, and maintaining spacing between the one or more filter pleats of the filter structure with the one or more radial support regions.
    Type: Application
    Filed: January 14, 2011
    Publication date: July 19, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Przemyslaw Krzysztof Nikolin, Jamison William Janawitz, Jason Mei
  • Patent number: 8216452
    Abstract: A dialysis system includes a first fluid heater, a second fluid heater, a supplemental power source and a logic implementer. The logic implementer is configured to use the supplemental power source such that when the first and second heaters are powered simultaneously, a collective current draw does not exceed a maximum allowable current draw of a branch power source powering the system.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: July 10, 2012
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Justin Rohde, William W. Han
  • Publication number: 20120012518
    Abstract: A coreless filter cartridge includes a filtration media having a plurality of pleats formed in a tubular configuration. The filtration media includes a first end that extends to a second end through an intermediate portion having an exterior surface and an interior surface that defines a hollow core. At least one retention device is adhered to the exterior surface of the filtration media. The at least one retention device is configured and disposed to limit radial movement of the filtration media. The filter cartridge is devoid of an internal core support provided within the hollow core thereby establishing a coreless filter cartridge.
    Type: Application
    Filed: July 19, 2010
    Publication date: January 19, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Jason Mei, James Roy Doehla, Bryan David Yetter
  • Patent number: 8070960
    Abstract: A method of dewatering a solids laden waste stream, whereby the slurry is pumped into a vertical filter retaining structure and the liquid is allowed to flow out through the pores of the filtration element while retaining the solids within the structure. After the solids have dewatered, doors or gates located at the bottom of the structure are opened and the solids drop out the bottom by gravity. The structure is elevated to allow a transport vehicle to be placed under the doors prior to dropping out the solids. One embodiment utilizes an open bottom, closed top filter bag that is closed off by the doors or sliding gates located at the bottom of the structure. Another embodiment disclosed would use rigid filter plates to retain the solids and drop out the accumulated solids by opening sliding gates at the bottom of the structure. The filter bag or plates is accessible from the side to allow either manual or automatic pressure washing of the filtration elements or filter bag after each dewatering cycle.
    Type: Grant
    Filed: September 22, 2008
    Date of Patent: December 6, 2011
    Inventor: Michael K. Conwell
  • Patent number: 8057672
    Abstract: Provided is a disposable multi-layered filtration device for the separation of blood plasma which can be applied to a biochip and appropriate for disposal uses. The filtration device for the separation of blood plasma includes: an upper substrate including a blood inlet; an intermediate substrate including a filtering unit for extracting blood plasma from blood flowing through the blood inlet; and a lower substrate including an air outlet, wherein the upper substrate, the intermediate substrate, and the lower substrate are stacked and adhered.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: November 15, 2011
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Kwang Hyo Chung, Yo Han Choi, Dae Sik Lee, Ju Hyun Jeon, Moon Youn Jung, Seon Hee Park
  • Patent number: 8048299
    Abstract: Methods and apparatus for increasing the duration of uninterrupted filtering flow by using crossflow filtration and ultrasonic energy in difficult to filter process liquids (e.g. of the kind having (1) a carrier liquid, (2) coalescing solids particles which tend to adhere and bridge filter element gaps sized substantially larger than such particles, and (3) larger impurity elements to be filtered out of such process liquid and sized larger than such filter element gaps).
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: November 1, 2011
    Assignee: Eaton Corporation
    Inventors: Mark A. Quintel, Christopher S. Rau, Michael E. Isch
  • Patent number: 7998349
    Abstract: The present invention relates to a device having two or more separate filtration layers that can be independently tested for integrity yet which allow for serial filtration through the two or more layers to obtain the desired characteristics such as retention. The device is made of two or more filtration areas, each containing one filter layer. Each area has one filtration layer and a first endcap bonded to a first end of the filter and a second endcap bonded to a second end of the filter. The areas are arranged concentrically around each other such that the first area is inward of the second area which is inward of a third area and the like. Each area is formed separately and integrity tested separately before final assembly. The first area is slid into the inside of the second area and then the two endcaps are either bonded to each, bonded to a third overall endcap or overmolded by a third endcap.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: August 16, 2011
    Assignee: Millipore Corporation
    Inventor: Kevin Rautio
  • Publication number: 20110042289
    Abstract: The invention relates to a filter element for a chromatographic column (1), comprising a support cage (3) whose outer contour defines a cylinder open on one side, and a filter (10) which abuts the inside of the support cage (3). The invention further provides a chromatographic separating column which has a syringe-shaped column element (2) which is open at one end and is provided at the other end with a tapered outlet (11) and into which such a filter element (3, 10) has been inserted.
    Type: Application
    Filed: July 22, 2010
    Publication date: February 24, 2011
    Applicant: LIFE TECHNOLOGIES CORPORATION
    Inventor: Jochen Tittgen
  • Patent number: 7871515
    Abstract: A filter assembly (100) may comprise a filter cartridge (102) and a filter housing (101) which may include a cylindrical support (121) and a removable portion (110).
    Type: Grant
    Filed: April 12, 2004
    Date of Patent: January 18, 2011
    Assignee: Pall Corporation
    Inventors: Jay D. Brandt, David M. Childs
  • Patent number: 7862719
    Abstract: A membrane module (3) comprising a plurality of porous hollow membranes (8). The membranes (8) extend between and are fixed at each end in a header (5, 6). One header (6) has one or more of openings (12) formed therein. The openings (12) are in fluid communication with a source of gas and/or liquid (13, 14, 15). The other of the headers (5) is sealingly connected to and in fluid communication with a head-piece (9). The head-piece (9) is adapted to couple to an associated head-piece of a further module to form a rack of modules (17). A potting head (6) for use in mounting porous hollow membranes (8) is also disclosed comprising a preformed potting element (29). The potting element (29) includes one or more cavities (30) for receiving curate potting material which, in use, supports said membranes (8).
    Type: Grant
    Filed: August 19, 2005
    Date of Patent: January 4, 2011
    Assignee: Siemens Water Technologies Corp.
    Inventors: Robert James McMahon, David John Cox, Fufang Zha, Roger William Phelps, Warren Thomas Johnson, Sargon Barkho
  • Publication number: 20100326928
    Abstract: A filtration system and methods for using same are disclosed. The filtration system can include a frame, and a plurality of filters coupled to the frame and coupled to each other in series. A pump can provide a pressure differential that causes fluid to flow through the filters in series. The first filter can be provided as a pre-filter, and one or more additional filters can include pleated, calendared, micro-fiber filters. Another filter can be a percentage removal nano-filter that is adapted to remove sub-micron particles from the fluid. The nano-filter can include three pleated filter layers. Each pleated filter layer can be oriented approximately concentrically about a common longitudinal axis.
    Type: Application
    Filed: June 25, 2010
    Publication date: December 30, 2010
    Applicant: MPC INC.
    Inventor: Lewis E. Osterhoudt
  • Patent number: 7832567
    Abstract: A liquid supply assembly for use with a spray gun (FIG. 1) comprises a reservoir 9 provided with a drop-in filter 10 for removing solid particles from liquid added to the reservoir 9. The reservoir 9 has a lid 12 with an outlet opening 12E connectable via a spout 16 to the spray gun and a separate inlet opening 12D in which a support collar 27 of the filter 10 is located. The filter 10 comprises a tubular mesh body 10A having an open end and a closed end. The open end is connected to the support collar 27 and the mesh body 10A extends away from the inlet opening 12D within the reservoir 9. The mesh body 10A is sized to pass through the filler opening 12D and has a high flow capacity to permit rapid filling of the reservoir 9. The filter 10 may be left in place when the reservoir 9 is connected to the spray gun and the reservoir 9 may be discarded together with the filter 10 after use.
    Type: Grant
    Filed: December 2, 2003
    Date of Patent: November 16, 2010
    Assignee: 3M Innovative Properties Company
    Inventor: Stephen C. P. Joseph
  • Publication number: 20100243554
    Abstract: Some embodiments of the disclosure are directed to a fluid filter assembly including an outer filter element having a hollow core and an inner filter element having a hollow core. The inner filter element can be positioned within the hollow core of the outer filter element, thereby defining an internal fluid passage. In some embodiments, the first end of the outer filter element and the first end of the inner filter element can be supported by an open endcap assembly, which can also include a fluid inlet in fluid communication with the internal fluid passage. In some embodiments, at least one of the filter elements can include a pleated filter media.
    Type: Application
    Filed: March 25, 2009
    Publication date: September 30, 2010
    Inventors: Nathan Herrin, Robb Benson, Mathews Thundyil, Mohammad Farooq, Doug Mittlesteadt
  • Patent number: 7780850
    Abstract: A fluid pollution prevention system is provided for preventing the discharge of petrochemicals from a bilge of a marine vessel. The system may include either or both a locator and an absorber for isolating and/or absorbing hazardous waste from a fluid in the bilge. In one embodiment, the locator is a continuous sidewall or barrier that defines a vertically enclosed fluid volume that is isolated from petrochemicals floating on the surface of fluid in a bilge. The absorber forms a closed geometric shape having an interior area that is disposable about the sidewall and movable along the sidewall as a function of fluid height. The absorber functions to absorb petrochemicals from the fluid and isolate an inlet of the bilge pump from receipt of the same. The absorber may be opened and closed to facilitate placement about the sidewall or other objects.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: August 24, 2010
    Inventor: Paul Arthur Clukies
  • Publication number: 20100206801
    Abstract: The invention is a filtering basket for fibres in water dispersion, comprising a plurality of profiled bars arranged side by side to define a tubular structure with the inner lateral surface provided with a plurality of longitudinal slots that define a filtering surface; two or more annular elements coaxial to one another and spaced from one another, coupled by interference outside the profiled bars. The profiled bars comprise a plurality of main bars, each one of which is provided with a shaped edge whose cross-section is in the form of a trapezium and has the long side facing towards the inside of the basket and a plurality of secondary bars, each one of which is provided with a shaped edge whose cross-section is curved, with the convex part facing towards the inside of the basket.
    Type: Application
    Filed: July 31, 2008
    Publication date: August 19, 2010
    Applicant: Comer S.p.A.
    Inventor: Giancarlo Dal Maso