Flexible Sheet Type Maintained In Nonplanar Configuration Patents (Class 55/500)
  • Patent number: 9393513
    Abstract: An air filter unit has a pleated filter medium with a zigzag shape in which a fibrous filter medium has been folded multiple times. The coefficients of linear expansion of the space-supporting members provided in each of the multiple folded spaces of the pleated filter medium are equal to or greater than the coefficient of linear expansion of the metal filter frame of the filter unit. The linear expansion coefficients of first space-supporting members are smaller than the linear expansion coefficient of a second space-supporting member. The first space-supporting members are provided in side portion regions including both side portions positioned at outermost sides of the pleated filter medium in a second direction perpendicular to the first direction. The second space-supporting member is provided in a central portion region sandwiched between the side portion regions.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: July 19, 2016
    Assignee: NIPPON MUKI CO., LTD.
    Inventors: Michihiro Hiroto, Shiro Hayashi, Kazuhiro Sugimoto
  • Patent number: 9358409
    Abstract: Air filtering devices may be helmet-mounted or belt-mounted. The air filtering devices include a filtering device shell and a filtering unit. The filtering unit includes a contaminated-air inlet, a filter assembly in fluid communication with the contaminated-air inlet, a blower assembly in fluid communication with the filter assembly via a duct, and containing a filtered-air outlet, and a filtered-air passageway in fluid communication with the blower assembly outlet and leading to breathing headgear. The blower assembly is vibrationally isolated from the filtering device shell by being only attached to the filtering device shell by the duct. The duct includes an elastomeric material.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: June 7, 2016
    Assignee: 3M Innovative Properties Company
    Inventor: David L. Ausen
  • Patent number: 9314717
    Abstract: A fluid filter element comprising: an embossed flat filter material which is folded so as to define a plurality of substantially adjacent walls, each wall defining a planar surface between two adjacent fold lines, said wall having an embossing comprising: a first embossing row having a centrally located elongated positive embossment and a distal embossment at each end of the positive elongated embossment, wherein at least one distal embossment is negative; and, a second embossing row spaced from and parallel to the first embossing row, the second embossing row having two elongated embossments, wherein one elongated embossment is negative and one is positive. A method regarding the making of the same.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: April 19, 2016
    Assignee: LPD Technologies
    Inventors: Dirk ter Horst, Hans-Joachim Lippold
  • Publication number: 20150135659
    Abstract: The present application provides a filtration system for a gas turbine engine. The filtration system may include a holding frame with a positioning element extending therefrom and a filtration unit for mounting within the holding frame. The filtration unit may include a positioning slot therein such that the positioning element extends through the positioning slot when the filtration unit is mounted within the holding frame.
    Type: Application
    Filed: November 15, 2013
    Publication date: May 21, 2015
    Inventors: Etienne Rene Pascal Jarrier, William Keith Eyers, Peter John Duncan Smith, Richard Paul Steele
  • Publication number: 20150113929
    Abstract: Apparatus and method related to a cartridge filter having self-regulated pleat spacing. An elastic adhesive bead is used on an outer surface of a cylindrically formed pleated filter media to maintain pleat spacing without damaging the pleats or the filter media. In this way, a cylindrical pleated filter media may be formed from a planar filter media without the need for manually spacing the pleats during or after formation into a cylinder.
    Type: Application
    Filed: October 24, 2014
    Publication date: April 30, 2015
    Inventor: Paul Jackson
  • Patent number: 9011567
    Abstract: The purpose of the present invention is to obtain a spunbonded nonwoven fabric, which comprises a single-component polyester-based fibers, having a high basis weight and a high rigidity by embossing, which is difficult to attain in the conventional art. Further, the present invention provides a filter base material having excellent pleatability, pleat retention property and durability, and a filter using thereof. The present spunbonded nonwoven fabric is obtained by subjecting a deposited fiber assembly to a thermocompression bonding by embossing with a pair of an embossing roll and a flat metal roll, and has a basis weight of 150 to 400 g/m2, a longitudinal bending repulsion of 20 to 60 mN and a longitudinal tensile strength of 400 N/5 cm or more.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: April 21, 2015
    Assignee: Toyobo Co., Ltd.
    Inventor: Hiroyuki Sakamoto
  • Patent number: 8979965
    Abstract: An air filter attachment apparatus for temporarily attaching a furnace-type air filter to a face of a box fan with a ferromagnetic box frame. The attachment apparatus comprises a plurality of magnetic flaps secured to respective top and side edges of the air filter, either directly or via a filter-receiving frame. The filter/frame is sized to approximate the face dimensions of the fan, and the flaps are foldable forwardly toward the fan to lie flat on top and side surface of the fan's metal box frame. Each flap includes magnetic attachment means to secure the flap to the fan.
    Type: Grant
    Filed: May 2, 2013
    Date of Patent: March 17, 2015
    Inventor: Mehran Minaeeghainipour
  • Publication number: 20150059301
    Abstract: A filter system is provided with a housing having a housing wall and a cover, the housing having a longitudinal axis. An inlet is arranged on the housing and feeds a fluid to be filtered into the housing. An outlet is arranged on the housing and discharges the filtered fluid. Filter elements each having at least one filter medium are arranged in the housing. At least one of the filter elements extends along the longitudinal axis. The filter medium has pleats extending along the longitudinal axis with outer and inner pleat edges. The outer pleat edges extend on the first side of the filter medium and the inner pleat edges on the second side of the filter medium and are opposite the outer pleat edges. The filter medium has a variable flow resistance along the longitudinal axis.
    Type: Application
    Filed: September 1, 2014
    Publication date: March 5, 2015
    Inventors: Michael Kaufmann, Klaus-Dieter Ruhland, Imre Marton
  • Publication number: 20150047508
    Abstract: A framed pleated air filter, including a non-self-supporting, compressible, pleated air filter media with a plurality of oppositely-facing pleats and with a plurality of upstream pleat tips and downstream pleat tips, the pleated air filter media further including a plurality of bridging filaments that are bonded to at least some of the upstream pleat tips. The framed pleated air filter does not include any support member on the downstream face of the pleated air filter media.
    Type: Application
    Filed: August 16, 2013
    Publication date: February 19, 2015
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Stephen M. Sanocki, Andrew R. Fox, Jonathan M. Lise, John J. Rogers, Kannan Seshadri
  • Publication number: 20150047507
    Abstract: A nestable framed pleated air filter, including a non-self-supporting, compressible, pleated air filter media with a plurality of oppositely-facing pleats and with a plurality of upstream pleat tips and downstream pleat tips and downstream pleat valleys, the pleated air filter media further including a plurality of bridging filaments that are bonded to at least some of the upstream pleat tips. The filter includes a frame with sidewalls that are angled so that the framed pleated air filter is nestable.
    Type: Application
    Filed: August 16, 2013
    Publication date: February 19, 2015
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Andrew R. Fox, Jonathan M. Lise, John J. Rogers, Stephen M. Sanocki, Kannan Seshadri
  • Publication number: 20150007539
    Abstract: A filter element has a zigzag-folded filter medium. Filter medium sections joined by a fold edge define an intermediate fold space, respectively, with a fold base and fold peaks opposite the fold base. An elongate support section is arranged in the intermediate fold space on a filter medium surface of one of the filter medium sections. The support section extends perpendicular to the fold edges between fold base and fold peak. The support section has a height extension perpendicular to the filter medium surface that increases in longitudinal direction of the support section from fold base to fold peak. The support section has a free side facing away from the filter medium surface. The support section has a width extension parallel to the fold edges. The width extension decreases parallel to the filter medium surface and perpendicular to the longitudinal direction from fold peak to fold base.
    Type: Application
    Filed: September 22, 2014
    Publication date: January 8, 2015
    Inventors: Gelase Mbadinga-Mouanda, Klaus Gehwolf
  • Publication number: 20150007538
    Abstract: 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: Application
    Filed: March 31, 2014
    Publication date: January 8, 2015
    Applicant: Donaldson Company, Inc.
    Inventors: Kevin Schrage, Troy Murphy, Donald Raymond Mork
  • Patent number: 8915986
    Abstract: An apparatus and method for filtering air in residential and commercial applications is described herein. The air filter may have a support frame which secures to the intake grille of an HVAC system. A filter media may be placed in the support frame to filter air as it passes through the air filter. The filter media may be replaced when the filter media becomes too dirty to effectively filter air. The dirty filter media may be removed from the frame and a new clean media may be replaced in the frame.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: December 23, 2014
    Assignee: Universal Technologies, Inc.
    Inventor: Richard R. O'Leary
  • Publication number: 20140360147
    Abstract: A filter element includes a filtration media formed into a tubular configuration. The filtration media includes a plurality of circumferentially spaced apart pleats. The filter element includes at least one retaining strap extending circumferentially around the filtration media to limit movement of the filtration media The at least one retaining strap has a ratio of flow direction tensile modulus to perpendicular direction tensile modulus of 1.5 or less. A method of fabricating a filter element is also provided.
    Type: Application
    Filed: June 5, 2013
    Publication date: December 11, 2014
    Applicant: BHA Altair, LLC
    Inventors: Cynthia Marie Polizzi, Vishal Bansal, Bryan David Yetter
  • Patent number: 8899227
    Abstract: A filtering device 10 that includes a housing 12 having a plurality of subsections 32, 34, and 36 where each subsection contains a filter element 26, 28, and 30. An inlet 18 is disposed at a first location on the housing 12, and an upstream air distribution system is placed in fluid communication with the inlet 18 and with each of the subsections 32, 34, and 36. A downstream air distribution system is located in fluid communication with each subsection 32, 34, and 36, and an outlet 20 is in fluid communication with the downstream air distribution system. The subsections are fashioned such that each subsection 32, 34, and 36 is not in fluid communication with each other. Using a filtering device so constructed, airflow through the device may be better managed to enable overall product service life to be increased while minimizing pressure resistance of the total filter.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: December 2, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Britton G. Billingsley, David M. Blomberg, Joy L. Manske
  • Patent number: 8887719
    Abstract: A filtering device 10 that includes a housing 12 having a plurality of subsections 32, 34, and 36 where each subsection is adapted to receive a filter element 26, 28, and 30. An inlet 18 is disposed at a first location on the housing 12, and an upstream air distribution system is placed in fluid communication with the inlet 18 and with each of the subsections 32, 34, and 36. A downstream air distribution system is located in fluid communication with each subsection 32, 34, and 36, and an outlet 20 in fluid communication with the downstream air distribution system. The upstream and downstream air distribution systems are constructed to cause the same airflow velocity through each subsection. Using such a construction, overall product service life may be increased while minimizing pressure resistance of the total filter.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: November 18, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Britton G. Billingsley, David M. Blomberg, Joy L. Manske
  • Publication number: 20140260138
    Abstract: A filter element for filtering a fluid flowing through the filter element. The filter element includes a pleat pack that extends about an axis and that has an internal volume. The pleat pack includes a filter media for filtering out particulate from the fluid. The filter media is pleated. The pleats extend out along planes that are transverse to the axis. An associated method of providing a filter element that filters a fluid flowing through the filter element is provided.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: BHA Altair, LLC
    Inventors: Sarah Adele Edwards, Martin Gregory Hatfield, Nusrat Farzana
  • Publication number: 20140250846
    Abstract: A filtration device including a contoured support having 1) an interior surface, 2) an outside peripheral surface spaced farther from a center of the contoured support than the interior surface, and 3) a rim enclosed and sealed to a perimeter of the contoured support. The filtration device includes macroscopic openings in the contoured support extending from the interior surface to the outside peripheral surface, and a plurality of nanofibers having diameters less than 1 micron. The nanofibers are disposed on the outside peripheral surface of the contoured support, and cover the macroscopic openings to form a filtration medium on the contoured support.
    Type: Application
    Filed: February 25, 2014
    Publication date: September 11, 2014
    Applicant: RESEARCH TRIANGLE INSTITUTE
    Inventors: Howard Jerome WALLS, Randall J. Newsome, Anthony Clint Clayton, Robert W. Yaga, David Samuel Ensor
  • Publication number: 20140245709
    Abstract: A one aspect method of forming filter cartridge arrangements for use in air cleaners is provided. The method involves coiling a media pack with a central winding bead and cutting through the winding bead in the coiled media pack to form two media packs. An example filter arrangement is disclosed. In another aspect, a filter cartridge arrangement for use in air cleaners is provided. The filter cartridge arrangement includes a media pack including a plurality of inlet flutes and outlet flutes extending between first and second opposite flow faces and formed from an arrangement of facing sheet secured to corrugated sheet. An example cartridge includes a preform secured to the media pack. In some forms, the preform includes a grid arrangement extending across one of the flow faces. The grid arrangement can include a region of cured seal material positioned in contact with the first flow face, to secure the grid arrangement to the flow face.
    Type: Application
    Filed: November 4, 2013
    Publication date: September 4, 2014
    Applicant: DONALDSON COMPANY, INC.
    Inventor: BENNY KEVIN NELSON
  • Publication number: 20140215980
    Abstract: A filter element for a filtering device used for filtering a fluid may include an annular filter body including a web-like, folded filter material, the filter body enclosing an inner space in the circumferential direction. The filter element may include an inner frame arranged on an inner side of the filter body facing the inner space. The inner frame may have a least one radially outwardly projecting and axially extending alignment strip arranged between two adjacent folds in the filter material in the circumferential direction. The at least one alignment strap may bear against the two adjacent folds.
    Type: Application
    Filed: June 14, 2012
    Publication date: August 7, 2014
    Applicant: Mahle Internatioal GmbH
    Inventors: Bashkim Berisha, Max Eilers, Andreas Schieszl, Hendrik Von Merkatz
  • Patent number: 8741018
    Abstract: An air filter cartridge is provided including an air filter media construction having a first, outlet end, flow face and an opposite, second, inlet end, flow face. The filter media construction has fluted media secured to a facing media sheet. The filter media is closed to flow of unfiltered air completely therethrough. A centerboard is provided. The centerboard has a media portion embedded within the media construction. The centerboard has first and second opposite sides. The media portion that is embedded within the media defines an aperture arrangement extending completely through the centerboard from the first side to the second side. An adhering sealant secures the centerboard to the media construction. At least some adhering sealant extends through the aperture arrangement.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: June 3, 2014
    Assignee: Donaldson Company, Inc.
    Inventors: Mark Belcher, Matthew A. Kalis
  • Patent number: 8721754
    Abstract: A spring loaded filter clamping frame includes a rear frame section which defines an interior space to secure a filter element. The rear frame section includes a projection extending toward the interior space and a rear latch mechanism. A front frame section defines an interior space and is slidably engaged with the rear frame section. An aperture in the front frame section interacts with the projection. A front latch mechanism with a latch mechanism biasing member interacts with the rear latch mechanism. A frame biasing member is located between the rear frame section and the front frame section. The frame biasing member applies a force urging the rear frame section and the front frame section apart, resulting in a filter clamping frame. In further examples, the frame biasing member is a coil spring and the latch mechanisms are hooks.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: May 13, 2014
    Assignee: BHA Altair, LLC
    Inventors: Richard Michael Ashley Mann, Abhijeet Madhukar Kulkarni, Peter Thomas McGuigan
  • Publication number: 20140102055
    Abstract: 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: Application
    Filed: May 28, 2013
    Publication date: April 17, 2014
    Applicant: Donaldson Company, Inc.
    Inventors: Steven Scott Gieseke, William M. Juliar, Edward A. Steinbrueck, Wayne R.W. Bishop, Patrick Golden, Wayne C. Musselman
  • Patent number: 8696782
    Abstract: A filter device comprises a filter element that is comprised of at least two radially nested filter bellows, wherein at least one filter bellows is to be flown through in the radial direction and a flow space for the fluid is formed between the filter bellows. Each filter bellows is embodied as a star-shaped filter with filter folds arranged in a star shape. On at least one end face of the filter element a sealing ring is arranged between a filter bellows and the filter housing.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: April 15, 2014
    Assignee: Mann + Hummel GmbH
    Inventor: Karlheinz Muenkel
  • Patent number: 8657900
    Abstract: A two stage filter device includes a cyclonic pre-separator (10) designed as a pre-filter that separates the particles from the gas flow and a main filter element (20) arranged downstream as a second stage operable to filter by guiding the particles through at least one filter medium (24). The main filter element (20) is received in a filter housing (30). The main filter element (20) includes at least one retaining element (22) for stabilizing the position of the main filter element (20) in the housing (30).
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: February 25, 2014
    Assignee: Mann+Hummel GmbH
    Inventor: Joerg Menssen
  • Patent number: 8613784
    Abstract: A filter element has a reinforcement band or ring along at least a portion of the perimeter thereof and performing a support function thereat preventing or minimizing damage upon attempted percussive cleaning of the filter element by service personnel striking the perimeter against an impact surface. Alternatively, a failure band or ring is provided along at least a portion of the perimeter and performs a designated failure function to a failure condition thereat upon attempted percussive cleaning, with the failure condition providing at least one of: a) an indication to service personnel that the filter element has been damaged and should not be re-installed; and b) a deformed condition preventing re-installation.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: December 24, 2013
    Assignee: Cummins Filtration IP Inc.
    Inventors: Scott P. Heckel, Roger L. Zoch, Kelly Ann Detra, Guillermo Alberto Smith, Matthew T. VandenBush, Pathikrit T. Banerjee, Caryn J. Kindkeppel
  • Patent number: 8608818
    Abstract: 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: Grant
    Filed: August 20, 2012
    Date of Patent: December 17, 2013
    Assignee: Donaldson Company, Inc.
    Inventors: Jian Xu, John David Kuhn, Edward J. Kreitinger, Wayne R. W. Bishop, Steven Scott Gieseke
  • Patent number: 8585794
    Abstract: An air filter insert with a folded filter medium is provided along a side edge with a sealing element which is composed of a first contact section which extends in axial direction and a second contact section which extends in radial direction, the two contact sections being applied directly to the side edge of the filter medium.
    Type: Grant
    Filed: November 11, 2009
    Date of Patent: November 19, 2013
    Assignee: Mann+Hummel GmbH
    Inventor: Arthur Sudermann
  • Publication number: 20130283743
    Abstract: An air filter including a base and a first and second frame element is disclosed. Each frame element is coupled to the base. The frame elements have an oscillating shape having a first portion relatively close to the base and a second portion relatively farther from the base. A filter element generally follows the oscillating shape of the frame elements. An air filter system is also disclosed. The air filter system can include the air filter and an air filter container. The air filter container contains the air filter and directs air through the air filter in a predetermined direction. An air filter is disclosed including a support structure and an oscillating shaped filter element attached to the support structure. The oscillating shape increases the air filter surface area for a given volume.
    Type: Application
    Filed: April 30, 2012
    Publication date: October 31, 2013
    Applicant: K&N ENGINEERING, INC.
    Inventors: Steve Williams, Jere James Wall
  • Patent number: 8540791
    Abstract: Embodiments for a filter and method for fabricating the same are provide herein. In one embodiment, a filter is provided that includes a first end cap, a second end cap, at least a first filtration media element and at least a first brace. The first end cap has an air flow aperture formed therethrough. The first and second end caps define a central axis. The first filtration media element is coupled to the first and second end caps and has an orientation curved around the central axis. The brace separates a first closed edge of the filtration media element from a second closed edge of the filtration media element.
    Type: Grant
    Filed: June 11, 2012
    Date of Patent: September 24, 2013
    Assignee: Camfil Farr, Inc.
    Inventor: Lee Pendleton Morgan
  • Patent number: 8540792
    Abstract: A flexible cover having magnetic attachment is provided for sealing openings in a structure such as a heating, ventilation and air conditioning duct, an automobile window, or an automobile door handle or lock. Magnets or another suitable affixing device are attached at the periphery on one side of the cover. Alternatively, the magnets may be attached to one side of the cover by sandwiching the magnets between two opposing flexible covers. Gaps between the magnets permit the flexible cover to attach to objects having a curved or angular conformation. In operation, the cover is placed over the opening preventing the transmission of air, fluid material, or particulate material through the opening.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: September 24, 2013
    Inventor: Dale J. Crook
  • Publication number: 20130228194
    Abstract: A filter system for a vacuum cleaner may include an air intake manifold having a tubular air inlet and a tubular perforated filter cage, the filter cage having a first end coupled to the air inlet and a free second end, the air inlet having an outer surface with a seal, a filter agitator coupled to the intake manifold and arranged alongside the filter cage, the filter agitator having a cleaning surface disposed adjacent to the filter cage, and a filter holder having a first end, a longitudinally opposite second end for coupling to a filter, and at least one coupler for removably coupling the filter holder to the filter inlet of the vacuum cleaner. A method of cleaning a vacuum cleaner filter may include coupling the filter holder to the filter inlet and rotating the filter holder so that the filter rotates about the filter cage.
    Type: Application
    Filed: March 1, 2012
    Publication date: September 5, 2013
    Applicant: EMERSON ELECTRIC CO.
    Inventor: Stuart V. Holsten
  • Publication number: 20130180224
    Abstract: A filter element includes a filter media extending along a longitudinal axis and extending circumferentially about a central passageway that extends along the longitudinal axis. The filter media defines a droplet cross-sectional shape perpendicular to the longitudinal axis. Alternatively, the filter media defines a top portion shape and a bottom portion shape, with the top and bottom cross-sectional portion shapes being asymmetric with respect to each other. The filter element may be used in a filtration arrangement for filtering dust flow. The filtration arrangement also includes a filter housing that has an opening through which dust flow is configured to enter the filter housing.
    Type: Application
    Filed: January 16, 2012
    Publication date: July 18, 2013
    Applicant: BHA Group, Inc.
    Inventor: Tian Xuan Zhang
  • Patent number: 8454720
    Abstract: A air condenser housing screening apparatus includes a pair of female mating members each comprising an elongated panel having a first side and a second side. A female receiver is mounted on the first side. A pair of male mating members is provided and each is removably engageable with one of the female mating members. Each of the female mating members has one of a plurality of fasteners coupled thereto. The fasteners are configured to releasably couple the female mating members to an air condenser housing. A screen mesh is positioned between coupled pairs of the female and male mating members to cover a portion of the housing with the screen.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: June 4, 2013
    Inventor: Richard C. Bond
  • Publication number: 20130111861
    Abstract: The purpose of the present invention is to obtain a spunbonded nonwoven fabric, which comprises a single-component polyester-based fibers, having a high basis weight and a high rigidity by embossing, which is difficult to attain in the conventional art. Further, the present invention provides a filter base material having excellent pleatability, pleat retention property and durability, and a filter using thereof. The present spunbonded nonwoven fabric is obtained by subjecting a deposited fiber assembly to a thermocompression bonding by embossing with a pair of an embossing roll and a flat metal roll, and has a basis weight of 150 to 400 g/m2, a longitudinal bending repulsion of 20 to 60 mN and a longitudinal tensile strength of 400 N/5 cm or more.
    Type: Application
    Filed: December 10, 2010
    Publication date: May 9, 2013
    Applicant: TOYOBO CO., LTD.
    Inventor: Hiroyuki Sakamoto
  • Publication number: 20130097983
    Abstract: 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: Application
    Filed: August 20, 2012
    Publication date: April 25, 2013
    Applicant: Donaldson Company Inc.
    Inventors: Jian Xu, John David Kuhn, Edward J. Kreitinger, Wayne R.W. Bishop, Steven Scott Gieseke
  • Patent number: 8361182
    Abstract: An air filter cartridge is provided including an air filter media construction having a first, outlet end, flow face and an opposite, second, inlet end, flow face. The filter media construction includes fluted media secured to a facing media sheet. The filter media is closed to flow of unfiltered air completely therethrough. A centerboard is provided. The centerboard has a media portion embedded within the media construction. The centerboard has first and second opposite sides. The media portion that is embedded within the media defines an aperture arrangement extending completely through the centerboard from the first side to the second side. An adhering sealant secures the centerboard to the media construction. At least some adhering sealant extends through the aperture arrangement.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: January 29, 2013
    Assignee: Donaldson Company, Inc.
    Inventors: Mark Belcher, Matthew A. Kalis
  • Publication number: 20130014478
    Abstract: Certain embodiments of the invention may include systems, methods, and apparatus for mounting filters. According to an example embodiment of the invention, a method is provided for mounting one or more filters in a housing with a tubesheet, an intermediate support, and a directional mount. The method can include providing a filter with a first filter section, manipulating the first filter section with respect to the intermediate support, and manipulating the first filter second end with respect to the intermediate support, where the first filter second end maintains its relative position with respect to the intermediate support, and the intermediate support is operable to engage with a second end of the directional mount.
    Type: Application
    Filed: July 12, 2011
    Publication date: January 17, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Richard Mann, Abhijeet Kulkarni, Peter McGuigan
  • Patent number: 8313549
    Abstract: A filter device comprises a filter element that is comprised of at least two radially nested filter bellows, wherein at least one filter bellows is to be flown through in the radial direction and a flow space for the fluid is formed between the filter bellows. Each filter bellows is embodied as a star-shaped filter with filter folds arranged in a star shape. On at least one end face of the filter element a sealing ring is arranged between a filter bellows and the filter housing.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: November 20, 2012
    Assignee: Mann + Hummel GmbH
    Inventor: Karlheinz Muenkel
  • Publication number: 20120248026
    Abstract: A filter element (1) has first and second end sections (3A, 3B) of a flat filter medium which are secured to one another. A sheathing (4) is provided, wherein said sheathing is compressed by the end sections (3A, 3B) and surrounds the end edges (9) of the end sections (3A, 3B). Alternatively, the filter element (1) has first and second end sections (3A, 3B) of a flat filter medium, wherein the first end section (3A) has a fold (5) having two fold legs (6A, 6B). The end section (3B) of the second end section (2B) is then compressed between the fold legs (6A, 6B).
    Type: Application
    Filed: April 20, 2012
    Publication date: October 4, 2012
    Applicant: MANN+HUMMEL GMBH
    Inventors: Michael Maier, Martina Bachfischer
  • Publication number: 20120210689
    Abstract: Crankcase ventilation arrangements are shown. Preferred wet laid media materials, for use in such arrangements are described. Also described and shown are example crankcase ventilation components, parts for use with a preferred media described and characterized.
    Type: Application
    Filed: May 1, 2012
    Publication date: August 23, 2012
    Applicant: DONALDSON COMPANY, INC.
    Inventors: Robert Rogers, Brad Kahlbaugh, Paul Kojetin, Keh Dema
  • Patent number: 8246707
    Abstract: 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: Grant
    Filed: July 11, 2011
    Date of Patent: August 21, 2012
    Assignee: Donaldson Company, Inc.
    Inventors: Jian Xu, John David Kuhn, Edward J. Kreitinger, Wayne R. W. Bishop, Steven Scott Gieseke
  • Patent number: 8206482
    Abstract: Vacuum cleaner filters, in particular replaceable vacuum cleaner filters suitable for both dry and wet/dry type vacuum cleaners are disclosed, as well as systems incorporating the use of such filters and methods for their use. The filters include a plurality of adjacently positioned pleats arranged in a closed circumferential, cylindrically-shaped path, a top end cap having a central orifice capable of constricting a post on a vacuum filter cage, and optionally a molded end ring oppositely-spaced from the top end cap for engagement with the motor housing of a vacuum cleaner.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: June 26, 2012
    Assignee: Emerson Electric Co.
    Inventors: Matthew A. Williams, Terrence L. Stanek, Jeffrey L. Young
  • Publication number: 20120124951
    Abstract: A duct screen mountable in an air duct for retaining objects which pass through an associated register, the screen having a filtering base having a plurality of holes and a frame to hold the filtering base in place within the air duct.
    Type: Application
    Filed: November 18, 2011
    Publication date: May 24, 2012
    Applicant: MOUNTAIN VIEW PROMOTIONS, INC.
    Inventor: Hugh Michael Miskel
  • Patent number: 8172919
    Abstract: The window filter apparatus provides a framework for holding filters within the frame of windows, thereby offering filtered outside air for a building, without having to run an air conditioner. The apparatus further provides for filtering noise and light by the same filters. Box fans are ideal companions for the apparatus for drawing additional outside air into a building. No additional hardware or tools are needed. There is no invasion of windows or window frames.
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: May 8, 2012
    Inventors: Ricardo F. Ruiz, Ricardo F. Ruiz, Jr.
  • Patent number: 8172918
    Abstract: A filter device has a filter housing and a filter element that is exchangeably arranged in the filter housing. A housing cover for closing the filter housing is provided. Interacting locking elements are arranged on the filter element and on the housing cover wherein the interacting locking elements have a locked position and a release position and are moveable between the locked position and the release position.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: May 8, 2012
    Assignee: Mann+Hummel GmbH
    Inventors: Stefanie Grosche, Thomas Ranker
  • Patent number: 8163050
    Abstract: An inlet barrier filter system for mounting on an aircraft to filter air prior to intake into an engine of the aircraft includes a frame having at least two curved frame members defining an opening. A filter element has a curved inward face and is received in the opening of the frame. The filter element includes filter media having pleats. A comb is attached to the frame and includes spaced-apart teeth that support the pleats. The comb is curved to generally conform to the curved inward face of the filter.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: April 24, 2012
    Assignee: Aerospace Filtration Systems, Inc.
    Inventor: Robert R. Belyew
  • Publication number: 20120073254
    Abstract: Provided is a double-pleated air filter where filter elements each of which ensures an inter-pleat gap (air passage) by folding filter media in multiple layers and by defining a pitch, a thickness and a folding shape of the filter media are arranged in the V-bank-shaped structure whereby the air filter can be used with a large air volume due to a low pressure drop.
    Type: Application
    Filed: October 20, 2009
    Publication date: March 29, 2012
    Applicant: NIPPON MUKI CO., LTD
    Inventors: Yukihiro Konno, Masahiro Watanabe, Takeki Yamaguchi, Shiro Hayashi
  • Publication number: 20120067016
    Abstract: An air filter group for motor vehicles includes a box body, provided with at least an air inlet opening and an air outlet opening, and further includes a filter element configured to be located internally of the box body, in which the air outlet opening is configured such as to receive the filter element from the outside of the box body, and in that the filter element includes a seal on an end side thereof. The seal being provided with a border configured to be at least partially rested on the edge of the air outlet opening and being such as to enable fastening the filter element to the box body, the filter element being maintained in position by compression directly by the conveyor of the clean air outlet.
    Type: Application
    Filed: April 14, 2010
    Publication date: March 22, 2012
    Inventor: Giorgio Girondi
  • Patent number: 8097060
    Abstract: A filter includes a spacing member and a filter element having two layers laminated together with the spacing member such that the spacing member extends between the filter element layers. The spacing member spaces apart the filter element layers to define an opening between the filter element layers.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: January 17, 2012
    Assignee: Scott Technologies, Inc.
    Inventor: Yuqing Ding