Spiral Or Cylindrical Patents (Class 55/498)
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Patent number: 8062396Abstract: The purpose of this invention is to provide a pleated-type filter used for an apparatus for collecting dust that is optimally designed and to provide the apparatus for collecting dust using the filter, wherein the pleated-type filter can keep the resistance to its ventilation low when the filter is installed in the apparatus for collecting dust so that the pleats are directed vertically, and wherein the area for installing the main bodies of the pleated-type filters can be reduced as much as possible. The ratio of the apertures of the pleats (P/H) that is defined by the intervals (P) between the crests of adjacent pleats of the main body and the heights (H) of its pleats ranges from 0.1 to 0.3. The ratio is determined based on the relationship between the area for installing the pleated-type filters and the ratio of the apertures of the pleats (P/H).Type: GrantFiled: June 28, 2007Date of Patent: November 22, 2011Assignee: Sintokogio, Ltd.Inventors: Hiroyuki Amano, Hiroaki Watanabe, Hidenori Ikeno, Tomoyuki Suzuki
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Patent number: 8051989Abstract: A support structure of a filter element for supporting a filter material that is adapted to filter a fluid includes a first frame portion and a second frame portion. The first frame portion has a plurality of radially-extending fingers that are longitudinally spaced from one another. The first frame portion is disposed entirely on an unfiltered side of the filter material. A second frame portion has a pair of longitudinally-extending support surfaces that are disposed in a spaced, facing relationship with respect to one another. The second frame portion is disposed entirely on a filtered side of the filter material. The radially-extending fingers of the first frame portion and each of the longitudinally-extending support surfaces of the second frame portion support the filter material to define a first radial channel. The radially-extending fingers of the first frame portion space the longitudinally-extending support surfaces of the second frame portion apart from one another.Type: GrantFiled: May 11, 2009Date of Patent: November 8, 2011Assignee: Davco Technology, LLCInventor: Alfred Tondreau
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Patent number: 8048187Abstract: A filter element includes a filter media pack, a frame, an annular seal, and a sealing means independent of the annular seal, attaching the filter media pack and the frame. The means of sealing an interface between the filter media pack and the frame include molding a filter media pack seal, plastic welding outer wraps of filter media pack to the frame, and securing the filter media pack and the frame using a bead of adhesive.Type: GrantFiled: June 30, 2008Date of Patent: November 1, 2011Assignee: Baldwin Filters, Inc.Inventors: Steven J. Merritt, Chad Banzhaf, Kyle Swanson
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Patent number: 8038756Abstract: An air cleaner assembly and components therefor are described. The components include features of an air cleaner housing; advantageous main filter cartridges; and, advantageous safety filter cartridge features. Features of the main filter cartridge are provided to engage an access cover of the assembly, and a cartridge support within the housing, in a preferred manner. Methods of assembly and use are also described.Type: GrantFiled: July 17, 2008Date of Patent: October 18, 2011Assignee: Donaldson Company, Inc.Inventors: Douglas Lee Iddings, Daniel Adamek, Thomas G. Miller, James R. Scott, Johan DeWitt
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Publication number: 20110247310Abstract: An exhaust gas treatment device for an exhaust system has a housing with an inlet and an outlet. At least one hollow body, which is configured to be gas permeable is arranged in the flow path from the inlet to the outlet. The hollow body is formed of at least one basic element made from a porous substrate. Each basic element includes at least two connecting regions, and two connecting regions each of one or different basic elements overlaps in the region of a connection to form the hollow body. The connecting regions to be connected are pressed with each other to form the hollow body.Type: ApplicationFiled: July 10, 2008Publication date: October 13, 2011Inventors: Wolfgang Hahnl, Stefan Hackenberg, Hans-Christoph Hossfeld
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Patent number: 8034144Abstract: A filter pack includes a filter construction and a sealing system for sealing the construction within a duct or housing. The filter construction has first and second opposite flow faces and is configured for a straight-through flow. The sealing system includes a frame construction and a compressible seal member. The compressible seal member is molded around a portion of the frame construction. The compressible seal member is sufficiently compressible to form a radial seal between and against the frame construction and a surface of a housing when the filter pack is inserted within the housing.Type: GrantFiled: December 3, 2007Date of Patent: October 11, 2011Assignee: Donaldson Company, Inc.Inventors: Steven Scott Gieseke, Carolyn J. Finnerty
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Patent number: 8029590Abstract: A collapsible filtration tank for a dust collector includes an outer frame, an engaging base and a filter. The outer frame is formed cylindrical, having plural meshes formed in its circumferential wall. The engaging base is formed annular, installed around the opening of the outer frame. The filter is inserted in a chamber of the outer frame and restrictively blocked by the blocking edge of the engaging base. Thus, the filter can be independently replaced with a new one instead of shifting the whole filtration tank.Type: GrantFiled: November 26, 2008Date of Patent: October 4, 2011Assignee: San Ford Machinery Co., Ltd.Inventor: Yuan-Tai Cheng
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Publication number: 20110232244Abstract: Z-filter media pack arrangements and methods for providing them are described. The preferred arrangements have a cured-in-place jacket around an outside of a coiled z-filter media combination. The preferred cured-in-place jacket is a mold-in-place overmold which includes, integral therein, a housing seal arrangement. Preferably a cured-in-place center core is used, most preferably one that has opposite concave ends with seal arrangements configured to seal a lead end portion of the coiled z-filter media combination.Type: ApplicationFiled: April 4, 2011Publication date: September 29, 2011Applicant: Donaldson Company, Inc.Inventors: KEVIN J. SCHRAGE, Eugene Lensing, Jeff S. Rahlf, Wayne R.W. Bishop, Gregory L. Reichter, Benny K. Nelson, Rodger I. Spears, Bruce R. Crenshaw, Vladimir Kladnitsky
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Patent number: 8025708Abstract: The invention relates to a liquid separator, particularly an oil separator for compressed air systems. The liquid separator comprises a housing (15), which can be detachably connected by means of a bayonet-type connector (11) to a counterpart (12).Type: GrantFiled: December 6, 2007Date of Patent: September 27, 2011Assignee: Mann + Hummel GmbHInventor: Wolfgang Heikamp
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Patent number: 8021456Abstract: A filter element for removing particles from a particulate laden fluid stream includes, in an exemplary embodiment, a filtration media formed into a tubular configuration and that a plurality of circumferentially spaced apart pleats. The filter element also includes at least one melt-extruded retention strap extending circumferentially around the filtration media to limit radial movement of the filtration media at operating temperatures up to about 500° F. Each melt-extruded retention strap is formed from a melt extrudable amorphous thermoplastic polyimide.Type: GrantFiled: November 21, 2008Date of Patent: September 20, 2011Assignee: BHA Group, Inc.Inventors: Thottupurathu Gopakumar, Alan Smithies, Jason Mei
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Patent number: 8016922Abstract: The air filter element may include an inner metal liner, an outer metal liner, a filter media, an annular end cap, and a composite end cap The annular end cap is formed over the metal liners such that the metal liners are secured and at least a portion of the filter media is sealed. The composite end cap has a foamed urethane portion and a rigid urethane portion. The foamed urethane portion, which has a central aperture and stand-off apertures, is molded about the central aperture and the stand-off apertures such that the metal liners are secured, at least a portion of the filter media is sealed, and urethane flashing occurs proximate one or more of the central aperture and an outer liner periphery. The rigid urethane portion is molded over the foamed urethane portion such that the stand-off apertures are filled, blocked, and/or sealed.Type: GrantFiled: October 4, 2010Date of Patent: September 13, 2011Assignee: Baldwin Filters, Inc.Inventor: Brian T. Ehrenberg
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Patent number: 8016903Abstract: A filter cartridge for use in an air cleaner is provided. The filter cartridge comprises a media pack having a flow end with a framework arrangement thereon. The preferred framework arrangement comprises a frame piece that includes: a seal support; a handle arrangement; and a force transfer arrangement thereon. The seal member is positioned on the framework. An air cleaner arrangement for use with the cartridge is shown. Methods of assembly and service are described.Type: GrantFiled: July 20, 2005Date of Patent: September 13, 2011Assignee: Donaldson Company, Inc.Inventors: Benny Kevin Nelson, David W. Nelson
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Patent number: 8012232Abstract: A filter formed by the following steps is provided.Type: GrantFiled: September 7, 2010Date of Patent: September 6, 2011Assignee: Honeywell International Inc.Inventors: Philip P. Treier, Christopher R. Reamsnyder, Micheal S. Lynch
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Patent number: 8012233Abstract: An air cleaner assembly is provided, which is configured for alternate installation therein of different sized filter cartridges. Features of the air cleaner assembly and components for use therewith, are described. Also methods of assembly and use are described.Type: GrantFiled: June 1, 2010Date of Patent: September 6, 2011Assignee: Donaldson Company, Inc.Inventors: Bradley A. Kuempel, Richard J. Osendorf
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Patent number: 8007572Abstract: A filter arrangement includes a filter element, a frame construction secured to the filter element, and a handle member secured to the filter element. In preferred embodiments, the handle member is secured to the frame construction. Preferably, the filter element includes a central core member, wherein fluted filter media is coiled around the central core member. Preferably, the central core member includes a plurality of corrugations, wherein the corrugations mateably engage at least some flutes. Preferably, the handle member is integral with the central core member, and also includes a fastening member for connection to a frame construction on the filter element. Methods for cleaning air and servicing an air cleaner preferably include constructions as described herein.Type: GrantFiled: November 9, 2009Date of Patent: August 30, 2011Assignee: Donaldson Company, Inc.Inventors: Steven Scott Gieseke, William M. Juliar, Edward A. Steinbrueck, Wayne R. W. Bishop, Patrick Golden, Wayne C. Musselman
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Publication number: 20110203241Abstract: A filter element arrangement is provided which includes a media pack comprising Z-filter media, a preform and an overmold sealing a portion of the interface between the preform and the media pack, and also forming an air cleaner seal for the filter element. The overmold preferably comprises molded, foamed, polyurethane. A variety of media pack shapes can be used.Type: ApplicationFiled: May 2, 2011Publication date: August 25, 2011Applicant: Donaldson Company, Inc.Inventors: Kevin Schrage, Troy Murphy, Donald Raymond Mork
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Patent number: 8002863Abstract: An engine air cleaner includes a cleaner element unit is housed within the upper cover body, and a skirt wall of the upper cover body extends further downward than the suction opening. A seal packing and the cleaner element unit are superimposed and fitted onto an outer periphery of an intake passage within the cleaner cover body. The seal packing is provided with a retaining projection that is tightly engaged with the intake passage. An air cleaner is disposed to be side by side with one side of the engine, a lower part of the cleaner cover body is joined integrally to and supported on the engine together with a carburetor via a pair of connecting bolts, and a reinforcing vertical wall portion of the cleaner cover body facing the engine across a gap is joined integrally to and supported on the engine via another connecting bolt.Type: GrantFiled: June 23, 2006Date of Patent: August 23, 2011Assignee: Honda Motor Co., Ltd.Inventors: Yoshihiko Kubo, Shingo Yoneda, Kazuhiro Sakamoto, Yasunori Matsubara
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Patent number: 8002868Abstract: A dehumidifier is provided. The dehumidifier includes a cabinet defining an outer appearance of the dehumidifier and having an air inlet and an air outlet, and a filter assembly disposed in the cabinet and purifying air introduced through the air inlet, wherein the filter assembly comprises a filter frame and a filter case coupled to the filter frame by a hinge and being capable of pivoting frontward.Type: GrantFiled: November 1, 2006Date of Patent: August 23, 2011Assignee: LG Electronics Inc.Inventors: Moon Shin Kim, Sang Youn Yoon
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Patent number: 8002869Abstract: An air cleaner includes a housing and an access cover. The internal volume of the housing can be reached through an opening in a side wall of the housing. A filter element having fluted filter media is removable and replaceable from the air cleaner. The housing is constructed and arranged to cam the element into sealing engagement with the housing. The access cover includes structure to help support and ensure proper seating of the filter element within the housing. A method of installing the filter element in the air cleaner includes sliding a portion of the filter element against a slide surface in the housing. A method of servicing an air cleaner includes tilting the filter element against a tilt surface in the housing to release a seal between the filter element and the housing. The filter element can have a handle to assist in servicing of the air cleaner.Type: GrantFiled: December 21, 2009Date of Patent: August 23, 2011Assignee: Donaldson Company, Inc.Inventors: Larry Nepsund, Bradley Kuempel, Donald P. Engel, Bruce Allen Boehrs, Sheldon Anderson, Richard L. Bucholtz, Thomas John Lundgren
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Publication number: 20110197556Abstract: 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: ApplicationFiled: March 8, 2011Publication date: August 18, 2011Applicant: Baldwin Filters, Inc.Inventors: Gene W. Brown, Steven J. Merritt
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Patent number: 7993424Abstract: An air cleaner case of an air cleaner used in an engine provides a lower casing holding a cleaner element thereon, and a cover accommodating the cleaner element therein. The lower casing includes a base on which the cleaner element is mounted, an exhaust duct extending downward from the base so that air purified by the cleaner element is conveyed to the intake side of the engine, an inlet duct extending downward from the base along the exhaust duct, and an inlet cylinder extending upward into the accommodating chamber from the base so as to be continuous with the inlet duct.Type: GrantFiled: May 23, 2008Date of Patent: August 9, 2011Assignee: Fuji Jukogyo Kabushiki KaishaInventors: Yasuharu Takeuchi, Minoru Toyoda, Koutarou Okayasu
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Patent number: 7988757Abstract: The disclosure concern air cleaners. Preferred air cleaners are shown which include a housing and a removable and replacement primary filter cartridge. Optional and advantageous features are shown. An optional mechanical interlock, operated with a non-threaded, movement of the cartridge, is provided between the primary filter cartridge and the housing. The preferred primary filter cartridge is conical in shape. A preferred optional safety or secondary filter cartridge is shown. Preferred methods of assembly and use are provided.Type: GrantFiled: January 15, 2010Date of Patent: August 2, 2011Assignee: Donaldson Company, Inc.Inventors: James R. Scott, Carolyn J. Finnerty, Steven Scott Gieseke, Douglas Lee Iddings, William M. Juliar, Gregory LaVallee
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Patent number: 7988756Abstract: A gas-solid separator has: an inner cylinder 10 having a closed lower end 11 and an opened upper end 1, and extending in a vertical direction; and an outer cylinder 2 that coaxially covers the inner cylinder 10 from the outside and has a gas vent port 6 formed on the upper end side of the inner cylinder and communicating with an exterior, wherein a plurality of axially extending long holes 4 are formed on a side surface on the lower end 11 side of the inner cylinder 10 in a circumferential direction, one of long side edge parts of each of the long holes 4 is provided with a guide blade 5 that protrudes outward and is inclined circumferentially so as to cover the long hole 4, and a part between the long holes 4 of the inner cylinder 10 is concaved in a center direction of the inner cylinder 10.Type: GrantFiled: July 5, 2007Date of Patent: August 2, 2011Assignees: Japan Cooperation Ctr., Petroleum, Nippon Oil CorporationInventors: Yuichiro Fujiyama, Toshiaki Okuhara, Shigeko Okuhara, legal representative
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Publication number: 20110173938Abstract: A multi-layered filter web having at least one at least one filter layer bonded to at least one additional filter layer. The filter layers are bonded together by at least one of ultrasonically and matted. The bonding is in at least one of at least one knurled edge region and in at least one matting region.Type: ApplicationFiled: June 12, 2009Publication date: July 21, 2011Inventor: Hans Waibel
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Patent number: 7981184Abstract: A diamond patterned tubular pleated filter element is disclosed. Also disclosed is a filter cartridge that comprises a core element having an inner diameter, two ends and apertures formed therein, a diamond patterned tubular pleated filter element having an inner and an outer diameter positioned about the core element wherein the ratio of the outer diameter to the inner diameter of the diamond patterned tubular pleated filter element is about 1.5 to about 2.5, an open end cap, for transferring fluid into or out of the core element, positioned at one end of the core, and a closed end cap, for preventing fluid from exiting therefrom, positioned at the other end of the core, the closed end cap including structure for positioning the open end cap in filtration housing. Systems and methods for manufacturing the filter cartridge and the diamond patterned tubular pleated filter media itself are also disclosed.Type: GrantFiled: March 13, 2008Date of Patent: July 19, 2011Assignee: 3M Innovative Properties CompanyInventors: Mahesh Z. Patel, Jonathan C. Taylor, Gary W. Schukar
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Patent number: 7981187Abstract: A filter element is includes a cylindrical media pack defining a central open volume and a longitudinal axis; a first end cap having a central aperture in flow communication with the central open volume; and a second, closed end cap having a central region closing an end of the media pack central, open volume. The closed end cap includes a projection extending axially outwardly therefrom and positioned at a location intersected by the longitudinal axis. An end cover for an air cleaner includes an inner side including a central projection thereon. Preferably, the central projection comprises a wall that includes an outer perimeter defining a regular polyhedron having at least five sides. An air cleaner comprises a cylindrical filter element having a first open end cap, a second closed end cap, and a cylindrical media pack extending therebetween. The first end cap defines an internal radial seal region. The second, closed end cap has a central region including a circular recessed portion.Type: GrantFiled: June 30, 2009Date of Patent: July 19, 2011Assignee: Donaldson Company, Inc.Inventors: Steven Scott Gieseke, Peter J. Murray
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Patent number: 7981197Abstract: A filter bowl and filter cover assembly is provided wherein the filter bowl is adapted to be easily mounted upon and removed from the filter cover by a plurality of bolt fasteners as a result of the bolt fasteners, connecting the filter bowl to the filter cover, being loosened to a predetermined degree and rotating the filter bowl relative to the filter housing in a clockwise direction so as to permit the head portions of the bolt fasteners to pass through key-hole shaped apertures formed within the filter cover. The filter bowl is able to likewise be easily and quickly re-installed upon the filter cover as a result of a reversal of the aforenoted removal procedures.Type: GrantFiled: March 7, 2008Date of Patent: July 19, 2011Assignee: Illinois Tool Works Inc.Inventors: Michael Kosmyna, Marvin Burns
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Patent number: 7981185Abstract: Device for extracting droplets of a liquid agent suspended in a gaseous fluid displaced in a machine for displacement of such a gaseous fluid, the extraction device comprising a first part and a second part. The first part comprising a first element, which is of elongated shape, with a longitudinal axis termed the first axis, and is intended to ensure a filtration function inside the apparatus; and a second element, which is intended to enable at least one of the following functions, which are a function of grasping at least by hand the first part and a function of fixing this first part to the second part. The second part comprising a wall that defines a chamber which is intended to be traversed by the gaseous fluid to be filtered and receives said first element in a position termed the operational position; and comprises an opening that delimits a passageway sufficient for the insertion of the first element into the chamber.Type: GrantFiled: November 27, 2006Date of Patent: July 19, 2011Assignee: Ateliers Busch SAInventor: Theo Bilger
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Patent number: 7981186Abstract: According to the present disclosure an air cleaner and air filter cartridge arrangement is provided. The air filter cartridge is a removable and replaceable cartridge for use in the air cleaner. The cartridge includes, among other things, an end cap having a preferred outwardly directed radial seal and a groove. The air cleaner includes a housing with a stabilizing ring projecting into an interior, positioned to project at least partially into the groove of the filter cartridge, when the filter cartridge is mounted for use. Methods of assembly and installation are described.Type: GrantFiled: April 6, 2009Date of Patent: July 19, 2011Assignee: Donaldson Company Inc.Inventors: Kevin Schrage, Douglas Lee Iddings, James R. Scott
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Patent number: 7981189Abstract: The invention has a captive tooless fastener for securing the engine intake air filter. The tooless fastener comprises shaft and associated bodies. The body has two arms oriented about 180 degrees apart. The shaft is threaded through a sealing washer and an aperture in a closed end cap of the air filter. The shaft is expanded so it cannot be removed from the end cap. The body's threaded inner diameter mates with a threaded portion of a central shaft in an air filter housing. The body's arms are rotated to screw the fastener and the shaft of the housing together. When tightened, the sealing washer closes the aperture. To remove the air filter, the fastener is unscrewed from the shaft of the housing and in the shaft floats in the aperture. A person in the field can remove the air filter by inserting fingers under the arms and pulling.Type: GrantFiled: August 29, 2005Date of Patent: July 19, 2011Assignee: Greenlees Filter LLCInventors: Ronald Troxell, Roy E. Greenlees, Kenneth S. Schultz
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Patent number: 7976602Abstract: A filter has a housing and a filter element with a first filter medium, wherein the filter element is arranged in the housing. A releasable lid is provided at an end face of the housing and closes off the housing. The releasable lid and the filter element together form a unitary component and the releasable lid forms a terminal disk at a first end of the filter element. The releasable lid forming the terminal disk of the filter element is glued to an end face of the first filter medium. The unitary construction of the filter element and the lid simplifies changing the filter element.Type: GrantFiled: April 28, 2008Date of Patent: July 12, 2011Assignee: Mann + Hummel GmbHInventor: Karlheinz Münkel
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Patent number: 7976601Abstract: A filter arrangement includes a media construction comprising a corrugated sheet secured to a flat sheet rolled into a coiled construction. A frame and a first seal member are provided. The frame secures the first seal member to the coiled construction. The first seal member is preferably oriented to form a radial seal with a housing. A second seal member is secured to the outer annular surface of the coiled construction. The second seal member includes a gasket extension having first and second opposite ends; an attachment portion; and a protrusion extending from the attachment portion. The second seal member is preferably oriented to form an axial seal with a housing. Air cleaners preferably utilizing filter arrangements as described herein operably installed within housings. Methods of installing, filtering, assembling, and servicing preferably include arrangements as described herein.Type: GrantFiled: April 5, 2010Date of Patent: July 12, 2011Assignee: Donaldson Company, Inc.Inventors: Jian Xu, John David Kuhn, Edward J. Kreitinger, Wayne R. W. Bishop, Steven Scott Gieseke
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Patent number: 7976598Abstract: 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: GrantFiled: October 11, 2009Date of Patent: July 12, 2011Assignee: SurgiQuest, Inc.Inventors: Paul A. Matula, Dominick Mastri, James R. Parys, Ralph Stearns, Johnnie H. Copley, Christopher Estkowski
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Patent number: 7972406Abstract: A filter assembly for a diesel particulate filter, the filter assembly having: a first end disk; a second end disk; a center tube secured to the first end disk by a sealing glass; a filter media secured to the first end disk and the second end disk by a sealing glass.Type: GrantFiled: August 11, 2008Date of Patent: July 5, 2011Assignee: Honeywell International Inc.Inventors: Jing Zheng, Kirk Maxey
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Patent number: 7972404Abstract: Air cleaner assemblies and components therefore are described and shown. Also methods of assembly and use are described and shown. Example air cleaner assemblies shown. Projection/receiver arrangements are described, for securing a filter cartridge in place within the housing. Also housing seal arrangements for the filter arrangements being sealed to the housing, and specific housing features and cartridge features are shown.Type: GrantFiled: June 21, 2007Date of Patent: July 5, 2011Assignee: Donaldson Company, Inc.Inventors: Bradley A. Kuempel, Richard J. Osendorf, Dan Adamek, Wayne Bishop, Nels Nordstrom, John Pooler, Bill Whelan
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Patent number: 7972403Abstract: A filter apparatus includes a filter housing having at least one opening and a plurality of retention tabs positioned proximate to at least one of the openings and secured to the filter housing. Also included is a connection fitting having a tube segment sized and configured to be received into at least one opening of the filter housing, orientation tab or tabs secured to the connection fitting and positioned to be engageable between a portion of the plurality of retention tabs when in the installed position. A retention flange extends radially from the tube segment and is configured to retentively engage with the retention tabs to secure the connection fitting to the filter housing. The connection fitting is rotatable when the tube segment is received into the filter housing but is then rotationally locked relative to the filter housing when in the installed position.Type: GrantFiled: August 12, 2008Date of Patent: July 5, 2011Assignee: Mann + Hummel GmbHInventor: Gerard Mouatt
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Patent number: 7972402Abstract: The present invention provides one or more reinforcing members configured to act together with the adhesive bonding between filter media layers to further resist axial deformation forces such as induced by fluid flowing through the filter and thereby acting to retain the structural form and integrity of the filter element. Also disclosed is a method of reinforcing layers of a multilayer axial filter element against displacement of the layers.Type: GrantFiled: July 17, 2008Date of Patent: July 5, 2011Assignee: Mann + Hummel GmbHInventor: Kevin Brian Babb
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Patent number: 7967882Abstract: Embodiments of the present invention provide low-profile surface mount filters. One embodiment of the present invention includes a filter housing adapted to mount on a substrate block having a plurality of flow paths and a filter cavity defined therein. The filter cavity is defined to extend in a generally horizontal direction when the low-profile filter is in use. A first flow passage is defined to connect an inlet of the filter housing to a first section of the filter cavity and a second flow passage is defined to connect a second section of the filter cavity to an outlet of the filter housing. A filter assembly is disposed in the filter cavity and sealed to the surface of the filter cavity separating the filter cavity into adjacent sections including the first section of the filter cavity and second section of the filter cavity.Type: GrantFiled: October 4, 2010Date of Patent: June 28, 2011Assignee: Entegris, Inc.Inventors: Anthony DiPrizio, Nathan Abbott, Christopher Vroman, Rajnikant B. Patel, Eric McNamara
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Patent number: 7967886Abstract: Z-filter media pack arrangements and methods for providing them are described. Certain aspects concern a cured-in-place seal on an outside of a coiled z-filter media combination. Other aspects concern a cured-in-place center core, most preferably one that has opposite concave ends with seal arrangements configured to seal a lead end portion of the coiled z-filter media combination.Type: GrantFiled: June 6, 2005Date of Patent: June 28, 2011Assignee: Donaldson Company, Inc.Inventors: Kevin J. Schrage, Eugene Lensing, Jeff S. Rahlf, Wayne R. W. Bishop, Gregory L. Reichter, Benny K. Nelson, Rodger I. Spears, Bruce R. Crenshaw, Vladimir Kladnitsky
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Patent number: 7964011Abstract: An air filter is provided having a filter body and a throat connected to a bottom of the filter body. The throat includes a plurality of throat sections. Each of the plurality of throat sections has a different inner diameter. The throat may further included molded trim guides for facilitating trimming of the throat at throat section interfaces.Type: GrantFiled: July 25, 2008Date of Patent: June 21, 2011Assignee: Walker Design, Inc.Inventor: Michael J. DeLillo
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Patent number: 7964010Abstract: A coalescing filter element for removing liquid droplets from a gas stream comprises a wall which is made of a coalescing filtration material and which defines a hollow space within it. An end cap at one end of the element has a port in it through which gas is supplied to the hollow space to flow through the wall of the filtration material. The end cap has a peripheral portion which engages the element wall and a tube which extends into the hollow space defined by the element wall, so that the port in the end cap comprises an inner opening defined by the tube and at least one peripheral opening located between the tube and the peripheral portion of the end cap. The tube extends beyond the peripheral opening(s) so as to deliver gas to a region of the element wall which is remote from the end cap.Type: GrantFiled: July 22, 2003Date of Patent: June 21, 2011Assignee: Domnick Hunter LimitedInventors: Brian Lane, David Porter
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Patent number: 7964008Abstract: A residual gas cleaner, comprising a manifold assembly having at least first and second inlets and at least an outlet. The first inlet receives spent exhaust gas from an engine, and the second inlet receives clean gas from a fuel tank assembly. A housing assembly comprises a housing that is secured onto the manifold assembly. The housing collects the spent exhaust gas. The housing assembly further comprises draining means to drain the spent exhaust gas from the housing. A filter assembly comprises a filter extending from the manifold assembly and is housed within the housing. The filter assembly filters the spent exhaust gas to create filtered exhaust gas. The filtered exhaust gas exits the manifold assembly through the outlet to join the clean gas. The engine receives the filtered exhaust gas and the clean gas from the outlet.Type: GrantFiled: May 30, 2008Date of Patent: June 21, 2011Inventor: Hector Ugalde
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Patent number: 7959701Abstract: A fluted filter element may include one or more bridging elements to provide resistance to telescoping of the layers of the fluted filter element. The bridging elements are attached to one or both of the filter faces via adhesives, and/or mechanical means, and may also take the form of one or more beads of adhesive applied across one or both ends of the filter element. The adhesive beads may include a flexible element, such as a string, or strip of material embedded in the adhesive bead.Type: GrantFiled: January 19, 2007Date of Patent: June 14, 2011Assignee: Baldwin Filters, Inc.Inventor: Steven J. Merritt
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Patent number: 7959702Abstract: An air filtration media pack is provided having a plurality of layers of single facer media. The layer of single facer media includes a fluted sheet, a facing sheet, and a plurality of flutes extending between the fluted sheet and the facing sheet and having a flute length extending from a first face of the filtration media pack to a second face of the filtration media pack. A first portion of the plurality of flutes are closed to unfiltered air flowing into the first portion of the plurality of flutes, and a second portion of the plurality of flutes are closed to unfiltered air from flowing out of the second portion of the plurality of flutes so that air passing into one of the first face and the second face of the media pack and out the other of the first face and the second face of the media pack passes through media to provide filtration of the air. The fluted sheet includes repeating internal peaks facing toward the facing sheet and repeating external peaks facing away from the facing sheet.Type: GrantFiled: February 4, 2008Date of Patent: June 14, 2011Assignee: Donaldson Company, Inc.Inventors: Gary J. Rocklitz, Robert M. Rogers, Ming Ouyang, Anitha M. Mathew
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Patent number: 7959703Abstract: A filter element includes a filter media pack, a frame, an annular seal, and a sealing means independent of the annular seal. The frame is integrally secured to the fluted filter media pack with material of the frame integrally bonding the frame thereto.Type: GrantFiled: June 30, 2008Date of Patent: June 14, 2011Assignee: Baldwin Filters, Inc.Inventors: Steven J. Merritt, Chad Banzhaf, Kyle Swanson
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Publication number: 20110136567Abstract: The present invention relates to an air cleaner for removing air pollutants from an air stream, for instance such as the cleaning exhaust/intake gas of an amusement machine, said air cleaner comprising a filter device including at least one filter layer (4a, 4b) held by a filter holder (5) in said airflow substantially perpendicular to a main flow direction thereof and including a plurality of preferably stick-shaped filter elements (6) neighbouring each other. In accordance with the present invention, the filter device has no closed surrounding along the circumference of the filter layers, but provides for an open side along at least a portion of the periphery of the filter layer. At least one circumferential side section (7, 8) of the filter layer parallel to or tangential to the longitudinal axis of an outermost filter element is formed as an open side free of flow control elements surrounding the filter layer.Type: ApplicationFiled: November 9, 2010Publication date: June 9, 2011Applicants: Novomatic AG, DEXWET USA LLCInventors: Christoph Bichl, Heinz Winkler, Alois Homer, Erich Petein, Maximilian Vojta
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Patent number: 7942948Abstract: A filter element includes, in an exemplary embodiment, a first end cap, a second end cap, and a composite filter media structure. The composite filter media structure includes a base substrate that includes a nonwoven synthetic fabric formed from a plurality of bicomponent synthetic fibers with a spunbond process, and having a bond area pattern having a plurality of substantially parallel discontinuous lines of bond area. The base substrate having a minimum filtration efficiency of about 50%, measured in accordance with ASHRAE 52.2-1999 test procedure. The composite filter media structure also includes a nanofiber layer deposited on one side of the base substrate by an by electro-blown spinning process. The composite filter media structure having a minimum filtration efficiency of about 75%, measured in accordance with ASHRAE 52.2-1999 test procedure. The composite media structure further includes a plurality of corrugations formed at a temperature of about 90° C. to about 140° C.Type: GrantFiled: August 29, 2008Date of Patent: May 17, 2011Assignee: BHA Group, Inc.Inventors: Alan Smithies, Jack T. Clements, Jason Mei
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Patent number: 7936566Abstract: An electronic control unit has a respiratory filter mounted on a waterproof case. Raised protective walls formed in the case surround the portion of the case at which the respiratory filter is arranged. At least two concave portions are provided for drainage that each extend through different positions of the protective walls.Type: GrantFiled: November 8, 2006Date of Patent: May 3, 2011Assignee: Hitachi, Ltd.Inventors: Toshikazu Shigyo, Kazunori Nozawa
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Patent number: 7935166Abstract: A filter element arrangement is provided which includes a media pack comprising Z-filter media, a preform and an overmold sealing a portion of the interface between the preform and the media pack, and also forming an air cleaner seal for the filter element. The overmold preferably comprises molded, foamed, polyurethane. A variety of media pack shapes can be used.Type: GrantFiled: June 30, 2008Date of Patent: May 3, 2011Assignee: Donaldson Company, Inc.Inventors: Kevin Schrage, Troy Murphy, Donald Raymond Mork
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Patent number: 7935161Abstract: A cyclonic separation system filter cartridge with a cylindrical body formed into at least thirty pleats having a solid bottom surface, an open top surface, a rigid inner cylindrical core, a top cap member substantially covering the open top surface except for a central circular opening, and a handle attached to either the rigid inner cylindrical core or to the top cap member, extending across the central circular opening. The pleats form a plurality of filtering chambers. Also, a mounting apparatus is disclosed that includes a top mounting flange, a retainer plate, removably connectable to the top mounting flange, a bottom plate and tie bracing connected to the mounting flange and the bottom plate, wherein the mounting apparatus is configured to be mounted, via the top mounting flange, within a cyclonic separation chamber, wherein the tie bracing is configured to extend along an internal wall of the separation chamber.Type: GrantFiled: March 23, 2010Date of Patent: May 3, 2011Assignee: Bulkmatic Transport CompanyInventor: Scott Richard Adams