Distorted Media In Flow Line Or Resilient Retaining Means Patents (Class 55/509)
  • Patent number: 11865485
    Abstract: An air cleaner includes a case, an air inlet, an air outlet, a grill covering the air inlet to filter airborne oil droplets, a fan to suction air through the air inlet and discharge air out of the air outlet, a roll filter provided between the grill and the fan to filter oil mist, and a filter roller to cut the roll filter. The roll filter includes a roller and a filter sheet wound around the roller, and the filter sheet may be unwound to extend behind the grill. When the filter sheet becomes dirty, the roll filter is further unwound so that a clean section is provided behind the grill, and the filter cutter may cut off the dirty section. During cutting, a clamp holds down the filter sheet. The case includes a slit through which the dirty section of the filter sheet passes for discarding.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: January 9, 2024
    Assignee: LG ELECTRONICS INC.
    Inventors: Hyunju Kim, Hyun Byung Cha, Chinsoo Hyon, Younju Oh, Hee Jeong Heo
  • Patent number: 11654389
    Abstract: An air cleaner includes a case, an air inlet, an air outlet, a grill covering the air inlet to filter airborne oil droplets, a fan to suction air through the air inlet and discharge air out of the air outlet, a roll filter provided between the grill and the fan to filter oil mist, and a filter roller to cut the roll filter. The roll filter includes a roller and a filter sheet wound around the roller, and the filter sheet may be unwound to extend behind the grill. When the filter sheet becomes dirty, the roll filter is further unwound so that a clean section is provided behind the grill, and the filter cutter may cut off the dirty section. During cutting, a clamp holds down the filter sheet. The case includes a slit through which the dirty section of the filter sheet passes for discarding.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: May 23, 2023
    Assignee: LG ELECTRONICS INC.
    Inventors: Hyunju Kim, Hyun Byung Cha, Chinsoo Hyon, Younju Oh, Hee Jeong Heo
  • Patent number: 11541345
    Abstract: A canister that adsorbs and desorbs fuel vapor generated in a fuel tank of a vehicle includes a housing and at least one expansion inhibitor. The housing is in a form of a cylinder configured to be filled with activated carbon. The housing includes a filled portion which is an area in the housing filled with the activated carbon; an unfilled portion which is an area in the housing not filled with the activated carbon; a boundary portion that defines a boundary between the filled portion and the unfilled portion; and a center portion which is situated at the axial center of the filled portion. The at least one expansion inhibitor inhibits an expansion of the boundary portion in an outward direction from being greater than an expansion of the center portion in the outward direction.
    Type: Grant
    Filed: March 9, 2022
    Date of Patent: January 3, 2023
    Assignee: FUTABA INDUSTRIAL CO., LTD.
    Inventor: Masahito Hosoi
  • Patent number: 11485006
    Abstract: A hand-held power tool includes a housing, a filter support, a plurality of securing element, and an actuating unit. The filter support has receiving openings, at least one first fixing element, and at least one second fixing element. The receiving openings are configured to receive filter elements configured to seal the hand-held power tool against a penetration of dust into the housing of the hand-held power tool. First and second fixing elements are fixable to corresponding securing elements arranged on the hand-held power tool, and are configured to releasably fix the filter support to the housing. The actuation unit is actuatable to release the filter support from the hand-held power tool.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: November 1, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Florian Esenwein, Peter Stierle, Manfred Lutz, Thomas Schomisch
  • Patent number: 11344834
    Abstract: There is provided a filter assembly arranged to be mounted over the air inlet of a fan assembly, the filter assembly comprising a filter frame arranged to support one or more filter media. The filter frame is provided with a first engagement member on a first edge of the filter frame and a second engagement member on a second edge of the filter frame, the first edge being opposite to the second edge. The first engagement member and the second engagement member are each configured to be engaged by a respective retention assembly when mounted on the fan assembly.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: May 31, 2022
    Assignee: Dyson Technology Limited
    Inventors: Jack Cyril Biltcliffe, Jake John Read, Ben Lowson, Christopher David Selway
  • Patent number: 11306917
    Abstract: There is disclosed a flue cap cover for covering a flue cap extending from a building wall. The flue cap cover may be of different colors to match or contrast with the color of the building. The flue cap cover includes a cover, an optional mesh pest guard, a pipe ring and an optional trim ring.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: April 19, 2022
    Assignee: Roof Goose Vent LLC
    Inventor: Jack F. King, Jr.
  • Patent number: 11110380
    Abstract: There is provided a fan assembly comprising a fan body comprising a first air inlet and a second air inlet, the first air inlet and the second air inlet being provided on opposing halves of the fan body. The fan assembly also comprises a first filter assembly mounted on the fan body over the first air inlet, and a second filter assembly mounted on the fan body over the second air inlet. The fan body further comprises a first retention assembly that is configured to releasably engage both the first filter frame and the second filter frame, and a second retention assembly that is also configured to releasably engage both the first filter frame and the second filter frame.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: September 7, 2021
    Assignee: Dyson Technology Limited
    Inventors: Jack Cyril Biltcliffe, Jake John Read
  • Publication number: 20150075126
    Abstract: An air filter device is provided with a filter housing and a filter element arranged in the filter housing. A frame part is connected to the filter element and frames the filter element at least over sections thereof circumferentially. The frame part is provided with an air duct receptacle that is adapted to receive an air duct. The frame part is arranged at least partially on an exterior side of the filter housing. The filter element is fastened by the frame part on the filter housing.
    Type: Application
    Filed: September 19, 2014
    Publication date: March 19, 2015
    Inventors: Daniel Schmid, Guenter Goerg, Timo Dirnberger, Ralf Dietz
  • Publication number: 20150013289
    Abstract: A filter element (10) comprises filter bellows (16), in particular open filter bellows made of a filter medium (18), which has an oncoming flow side (28) and an outgoing flow side (30) for the fluid to be filtered. The filter element (10) is disposed in the filter housing (11) in such a way that it separates at least one inlet (15) from at least one outlet (17). An element axis (14) of the filter element (10) and a housing axis (25) of the filter housing (11) may be aligned in parallel with or axially to the installation direction (12) in the filter housing (11) for installing the filter element (10). The filter element (10) has at least one outer support section (38), which protrudes axially beyond the filter bellows (16) on the oncoming flow side (28) or the outgoing flow side (30) with respect to the element axis (14) and protrudes into an axial projection of the oncoming flow side (28) or the outgoing flow side (30) with respect to the element axis (14).
    Type: Application
    Filed: July 13, 2014
    Publication date: January 15, 2015
    Inventors: Robert Hasenfratz, Fabian Wagner, André Roesgen, Christian Thalmann, Frank Pflueger
  • Publication number: 20150007535
    Abstract: Disclosed are an air filter element, a filter housing, and an air filter in which the air filter elements have a high filtering capacity and a long service life by increasing the filter surface of an air filter element taking into account structural requirements for the air filter housing.
    Type: Application
    Filed: July 14, 2014
    Publication date: January 8, 2015
    Inventors: Robert Hasenfratz, Mario Rieger, Joerg Menssen, Michael Harenbrock, Duc Cuong Nguyen, Pascal Neef, Werner Blossey, André Roesgen, Thomas Jessberger, Pedro Miguel Pereira Madeira, Michael Heim, Mike Schmid, Martin Schmid, Gelase Mbadinga-Mouanda, Andreas Weber, Christian Thalmann
  • Publication number: 20140293240
    Abstract: An air filter includes a filter body configured to trap dust contained in air passing therethrough and a holding frame configured to surround an end edge of the filter body, and the holding frame is formed of a resilient material. The holding frame includes a first surface on a proximal end side in a direction of travel of air passing through the filter body, and a second surface on a distal end side in the direction of travel, and one of the first surface and the second surface is provided with a projecting portion.
    Type: Application
    Filed: March 17, 2014
    Publication date: October 2, 2014
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Kiyotaka Nakano
  • Publication number: 20140283331
    Abstract: A separator for a vacuum cleaner has a cover part from which webs are projecting which are positioned along the circumference of the cover part at a spacing one behind the other with formation of through openings. At least some of the webs are without connection with each other at the end that is facing away from the cover part. The webs are elastically yielding transversely to the longitudinal direction. The webs are positioned in their mounting position with radial pretension on a spider which is fixedly seated on the motor shaft of the vacuum cleaner. Due to centrifugal forces occurring in operation of the vacuum cleaner as a result of the high rotary speed of the motor shaft, the webs of the separator are positioned with their free ends under high force on the spider. The separator is thus reliably entrained by the spider by friction.
    Type: Application
    Filed: March 25, 2014
    Publication date: September 25, 2014
    Applicant: PROAIR GmbH Gerätebau
    Inventor: Paul Roth
  • Publication number: 20140260982
    Abstract: An air filter including an open end, a closed end, and a filter area there between. The open end frictionally engages and seals an air port, while the closed end mates with the housing to secure the filter to the housing. The filter area is reinforced to provide a durable, reusable filter. The filter material is selected to provide depth loading and increase the particulate capacity of the filter.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: K&N Engineering, Inc.
    Inventors: Steve Williams, Jere James Wall
  • Patent number: 8784528
    Abstract: Embodiments of the invention generally provide a holding frame having at least one rigid retainer and/or flexible retainers. The holding frame assembly is typically mounted in a housing of an air handler or other air moving conduit. The rigid retainer(s) and flexible retainer(s) are coupled to the holding frame assembly to define filter retaining pockets that retain a final filter within the holding frame assembly without use of clips and other fastening mechanisms.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: July 22, 2014
    Assignee: Camfil USA, Inc.
    Inventor: Joseph J. Gorman
  • Patent number: 8715383
    Abstract: A filter clip for holding a filter media over a supply/return/exhaust of an HVAC system includes a hook portion that secures to a grid of a suspended ceiling system and a filter holding portion that is connected to the hook portion such that the filter holding portion is biased towards the grid and/or a grille. An air filter placed between the filter holding portion and the grid and/or grille is held against the grid and/or grill until, for example, until construction is complete or the filter needs to be changed or removed, thereby covering the supply/return and reducing contamination of the HVAC system from construction dirt/debris.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: May 6, 2014
    Inventor: Ray Cordell
  • Publication number: 20130291504
    Abstract: A flexible filter retainer and a holding frame assembly having a flexible retainer are provided. In one embodiment, the flexible filter retainer for the holding frame comprises a flat body extending from a first end to a second end. The body comprises a bowed shaped retaining portion disposed at the first end and comprises a first strip and a top face. The body also comprises a fixed portion disposed at the second end and comprises a second strip. The first and second strips are linearly aligned and laterally offset from the top face. In another embodiment, a filter holding frame assembly comprises a holding frame and flexible filter retainers coupled to the holding frame. Each retainer comprises a flat body extending from a first end to a second end. The body comprises a retaining portion disposed at the first end and a fixed portion disposed at the second end.
    Type: Application
    Filed: November 30, 2012
    Publication date: November 7, 2013
    Applicant: CAMFIL FARR, INC.
    Inventor: Joseph J. Gorman
  • Patent number: 8535403
    Abstract: A filter assembly, including an air cleaner assembly for an internal combustion engine in an underhood engine compartment, includes a mounting bracket with a flow passage therethrough. In one form, a combination air filter element and base is provided for an air cleaner assembly. In a further form, a filter assembly includes a filter element integrally and permanently mounted to the base for removal and replacement as a single unit.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: September 17, 2013
    Assignee: Cummins Filtration IP Inc.
    Inventors: Hrishikesh Patwardhan, Scott W. Schwartz, Gregory W. Hoverson
  • Patent number: 8449661
    Abstract: To connect and disconnect a filter in a gas flow system, a filter unit has a filter housing wherein an adsorption/absorption filter is movably arranged. The filter housing has two tube connectors for connecting the filter unit in a gas conducting passage. The filter unit also has a shifting element which is movable from a first to at least a second position. The first position allows the filter to substantially fill the gas conducting passage in a way that forces the gas in the gas flow system to pass through the filter, whereas the second position substantially removes the filter from the gas conducting passage, allowing the gas to pass through the filter unit without passing the filter.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: May 28, 2013
    Assignee: Maquet Critical Care AB
    Inventor: Stefan Broborg
  • Publication number: 20130125520
    Abstract: Embodiments of the invention generally provide a holding frame having at least one rigid retainer and/or flexible retainers. The holding frame assembly is typically mounted in a housing of an air handler or other air moving conduit. The rigid retainer(s) and flexible retainer(s) are coupled to the holding frame assembly to define filter retaining pockets that retain a final filter within the holding frame assembly without use of clips and other fastening mechanisms.
    Type: Application
    Filed: November 22, 2011
    Publication date: May 23, 2013
    Inventor: Joseph J. Gorman
  • Patent number: 8333817
    Abstract: A filter arrangement for filtering a fluid or gaseous medium, in particular in a motor vehicle, comprising a housing which holds a filter element in a receiving space, wherein the filter element has an edge region which bears at least in regions against the inner wall of the housing, is characterized, with regard to the problem of creating a filter arrangement which is of structurally simple design and has a high filter efficiency, in that the housing is shaped such that the receiving space tapers at least in regions in at least one spatial direction.
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: December 18, 2012
    Assignee: Carl Freudenberg KG
    Inventors: Uwe Felber, Ulrich Stahl
  • Publication number: 20120199006
    Abstract: A dust bin for a robotic vacuum comprises a dust bin frame having a cavity defined therein to receive debris, a filter frame disposed within the dust bin frame and defining two filter openings at opposite sides thereof, and a central impeller disposed adjacent to or under the filter frame to draw air from outside of the dust bin into the dust bin. The dust bin also comprises two air filters, one air filter being located on each side of the central impeller, each air filter being inserted into one of the filter openings, each filter having an overhang around a perimeter thereof that includes a sealing face to form a vacuum-assisted seal with the filter frame when air is drawn into the dust bin.
    Type: Application
    Filed: December 30, 2011
    Publication date: August 9, 2012
    Applicant: IROBOT CORPORATION
    Inventors: David Orrin SWETT, Mark Steven SCHNITTMAN
  • 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
  • Patent number: 8029586
    Abstract: A filter pipeline for an air intake system of an internal combustion engine has a tubular body and a filter element arranged in the tubular body. The filter element is a filter bag of a flexible material that has an opening and is attachable in the area of the opening to the tubular body. The filter bag and an inner wall of the tubular body are shaped such that in a circumferential direction of the pipeline different spacings are provided between the filter bag and the inner wall of the tubular body.
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: October 4, 2011
    Assignee: Mann+Hummel GmbH
    Inventors: Jochen Linhart, Sascha Bauer, Michael Fasold
  • Patent number: 7828867
    Abstract: A portable air treatment device and system including a filter retaining mechanism for selectively retaining a replaceable filter assembly. The filter retaining mechanism includes a rigid, non-moveable body that reduces a size of an access opening to a filter chamber otherwise formed by the air treatment device housing, along with a bearing surface. The rigid body serves as a catch or latch, preventing unexpected dislodgement of a filter assembly from the chamber. The bearing surface is also rigid and non-moveable, and provides a means for easily inserting and removing a primarily non-permanently deflectable filter assembly about the rigid body.
    Type: Grant
    Filed: February 22, 2006
    Date of Patent: November 9, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Andy Fox, Ronald C. Johansson, Kevin E. Kinzer, Glendon D. Kappel, Casey L. Carlson, Paula A. Marrs
  • Patent number: 7776123
    Abstract: Foldable filter assemblies and methods of use thereof are disclosed. An air filter assembly including a frame having opposed substantially rigid end members and a flexible side member, the end members being connected to the flexible side member, and an air filter media connected to and disposed within the frame such that the frame is adapted to be disposed in a planar use position, and the end members of the frame are adapted to be moved toward each other prior to installation into the planar use position.
    Type: Grant
    Filed: July 17, 2007
    Date of Patent: August 17, 2010
    Assignee: AT&T Intellectual Property I, L.P.
    Inventor: Jonathan Gordon Lawrence
  • Patent number: 7758677
    Abstract: A filtering device has a filter hose that is arranged in a support pipe wherein between the outer side of the filter hose and the inner wall of the support pipe an annular chamber for the flow of the fluid to be purified is formed. Moreover, an adsorber unit for adsorption of residues is arranged in or on the support pipe.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: July 20, 2010
    Assignee: Mann+Hummel GmbH
    Inventor: Stefan Walz
  • Patent number: 7547341
    Abstract: A filter assembly for a structure having an air intake, the filter assembly including a filter media that is sized and shaped to cover the air intake. The ends of the filter media are connected by an elastic fastener, such that the filter media and the fastener encircle the structure and are under tension to hold the filter assembly on the structure. The filter media is a web of synthetic fibers, such as a web of fibers woven in a 3-dimensional pattern or a nonwoven mesh.
    Type: Grant
    Filed: January 23, 2008
    Date of Patent: June 16, 2009
    Inventor: Leslye Sandberg
  • Patent number: 7513925
    Abstract: A filter assembly for fuel is disclosed. The assembly includes a housing and a filter element located in the housing and held in place by a spring. In the space between the inner wall of the housing and the base of the filter element a compressibly resilient element is located which absorbs hydraulic pulses, the filter assembly is subjected to.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: April 7, 2009
    Assignee: Fleetguard Filters Pvt. Ltd.
    Inventors: Payyappilly Antony Thomas, Kulkarni Vivek Shrikrishna, Khandkar Arun Ganesh, Padwal Prasad Babanrao, Pathak Rahul Sudhakar
  • Patent number: 7419526
    Abstract: Conformal filter cartridges, filtering apparatus using the conformal filter cartridges, and methods of manufacturing the conformal filter cartridges are disclosed. The conformal filter cartridges may include a bed of filter material between a pair of support plates, wherein the major surfaces of the support plates facing the bed of filter material are each curved about at least one axis. The curvature imparted by the support plates provides the conformal configuration to the filter cartridge. The bed of filter material may be loose particulate filter material that may be retained under residual compression between the support plates within the filter cartridge.
    Type: Grant
    Filed: March 3, 2005
    Date of Patent: September 2, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Paul A. Greer, Joseph D. Slack, Pierre Legare
  • Patent number: 7371267
    Abstract: An improved filter support structure for supporting filter media. The support structure includes two sections removably coupled together with an improved coupling assembly. The first section has a cross section presenting a first width spaced apart from a second width, the second width being less than the first width. The coupling assembly includes an element carried by the second section, and presents an engagement width that is greater than the second width and less than or equal to the first width such that the element may be shiftably received within the first section at the first width, and can be removably engaged at the second width.
    Type: Grant
    Filed: April 19, 2005
    Date of Patent: May 13, 2008
    Assignee: Air Cure, Inc.
    Inventors: Howard Pipkorn, Kal Ugargol
  • Patent number: 7354469
    Abstract: A Vacuum conveyor device (10) with a multi-stage filter system, has at least one inner filter (10A), one outer filter (10B), and one filter adapter (20) especially for air-tight and/or fluid-tight insertion of at least one of the filters, for which the outer filter is arranged up-stream of the inner filter. In order of preparing a filter system for a vacuum conveyor device, which features both the cleaning-related elements of conventional filters and also the safety-related advantages of multi-stage systems, but which remains compact in structure, the one or more inner filters (10A) are used as carrier units for the one or more outer filters (10B) that can be mounted on or inserted into these inner filters and can be connected or are connected to the filter adapters (20).
    Type: Grant
    Filed: August 5, 2004
    Date of Patent: April 8, 2008
    Assignee: Volkmann GmbH
    Inventor: Thilo Volkmann
  • Patent number: 7332011
    Abstract: A filter assembly for a structure having an air intake, the filter assembly including a filter media that is sized and shaped to cover the air intake. The ends of the filter media are connected by an elastic fastener, such that the filter media and the fastener encircle the structure and are under tension to hold the filter assembly on the structure. The filter media is a web of synthetic fibers, such as a web of fibers woven in a 3-dimensional pattern or a nonwoven mesh.
    Type: Grant
    Filed: March 16, 2005
    Date of Patent: February 19, 2008
    Inventor: Leslye Sandberg
  • Patent number: 7318851
    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: Grant
    Filed: November 2, 2004
    Date of Patent: January 15, 2008
    Assignee: Baldwin Filters, Inc.
    Inventors: Gene W. Brown, Steven J. Merritt
  • Patent number: 7291197
    Abstract: A filter element has a filter media and at least one base member. The filter element further has a ceramic paste connecting the filter media to the at least one base member.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: November 6, 2007
    Assignee: Caterpillar Inc.
    Inventors: Joanna Louise Costura, Matthew E. Williams, Matthew T. Kiser, Cornelius N. Opris, Dave Michael Thaler, Amy Fluharty
  • Patent number: 7285148
    Abstract: A filter assembly for an engine and operable to support a filter element. The filter assembly includes a housing defining a filter receiving space having a first end and a second end. The first end and second end defining an axial length therebetween. A biasing element is integrally formed as one piece with the housing and disposed adjacent the first end.
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: October 23, 2007
    Assignee: Briggs & Stratton Corporation
    Inventor: James Daleiden
  • Patent number: 7252704
    Abstract: A filter arrangement includes a first filter element having opposite first and second ends; an axial length between the first and second ends; and a plurality of flutes. Each of the flutes has a first end portion adjacent to the first filter element first end, and a second end portion adjacent to the first filter element second end. Selected ones of the flutes are open at the first end portion and closed at the second end portion; and selected ones of the flutes are closed at the first end portion and open at the second end portion. A sleeve member secured to and circumscribing the first filter element. The sleeve member is oriented relative the first filter element to extend at least 30% of the axial length of the first filter element. A seal member pressure flange at least partially circumscribes the sleeve member. The filter arrangement is particularly useful for gas turbine systems. Methods for operating and servicing filter arrangements preferably utilize constructions herein.
    Type: Grant
    Filed: February 3, 2006
    Date of Patent: August 7, 2007
    Assignee: Donaldson Company, Inc.
    Inventors: Joseph C. Tokar, James A. LeBlanc
  • Patent number: 7186284
    Abstract: A filter mounting system for use in a baghouse having a tubesheet with a plurality of openings. The filter mounting system includes filter media and a tubular mounting collar attached to the filter media to mount the filter media relative to the tubesheet. The filter mounting system also includes a gasket made of a flexible material. The gasket has a tubesheet receiving portion and a filter receiving portion extending from the tubesheet receiving portion. The mounting collar of the filter mounting system is adapted to be positioned within the filter receiving portion of the gasket and engaging the filter receiving portion to effect sealing engagement of the tubesheet receiving portion of the gasket against a portion of the tubesheet adjacent the opening. The filter receiving portion extends from the tubesheet receiving portion to force one portion of the gasket into sealing engagement with a surface of the tubesheet upon engagement with the mounting collar.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: March 6, 2007
    Assignee: BHA Group, Inc.
    Inventor: Jack Thomas Clements
  • Patent number: 7135052
    Abstract: A cartridge filter includes a folded package including filter material and a frame holding the folded package. The frame includes a plurality of profiled strips having identical profiles, and each having two ends. The frame also includes a plurality of corner joints, each disposed at an end of a respective profiled strip. Each corner joint includes an end cap for engaging pair wise with an end cap of an adjacent one of the plurality of corner pieces.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: November 14, 2006
    Assignee: Carl Freudenberg KG
    Inventors: Michael Meierhoefer, Renate Tapper, Thomas Caesar, Heiko Knust, Thorsten Schmitt, Norbert Kuck, Rainer Kaffenberger
  • Patent number: 6994744
    Abstract: A filter arrangement includes a first filter element having opposite first and second ends; an axial length between the first and second ends; and a plurality of flutes. Each of the flutes has a first end portion adjacent to the first filter element first end, and a second end portion adjacent to the first filter element second end. Selected ones of the flutes are open at the first end potion and closed at the second end portion; and selected ones of the flutes are closed at the first end portion and open at the second end portion. A sleeve member secured to and circumscribing the first filter element. The sleeve member is oriented relative the first filter element to extend at least 30% of the axial length of the first filter element. A seal member pressure flange at least partially circumscribes the sleeve member. The filter arrangement is particularly useful for gas turbine systems. Methods for operating and servicing filter arrangements preferably utilize constructions herein.
    Type: Grant
    Filed: July 22, 2004
    Date of Patent: February 7, 2006
    Assignee: Donaldson Company, Inc.
    Inventors: Joseph C. Tokar, James A. LeBlanc
  • Patent number: 6960245
    Abstract: A filter arrangement includes a first filter element having opposite first and second ends; an axial length between the first and second ends; and a plurality of flutes. Each of the flutes has a first end portion adjacent to the first filter element first end, and a second end portion adjacent to the first filter element second end. Selected ones of the flutes are open at the first end potion and closed at the second end portion; and selected ones of the flutes are closed at the first end portion and open at the second end portion. A sleeve member secured to and circumscribing the first filter element. The sleeve member is oriented relative the first filter element to extend at least 30% of the axial length of the first filter element. A seal member pressure flange at least partially circumscribes the sleeve member. The filter arrangement is particularly useful for gas turbine systems. Methods for operating and servicing filter arrangements preferably utilize constructions herein.
    Type: Grant
    Filed: March 5, 2003
    Date of Patent: November 1, 2005
    Assignee: Donaldson Company, Inc.
    Inventors: Joseph C. Tokar, James A. LeBlanc
  • Patent number: 6918940
    Abstract: A filter element with a replaceable filtration panel held in place in a frame by elastic straps. A course support screen may be included atone side of the filtration panel.
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: July 19, 2005
    Assignee: Imagine One
    Inventors: Robert W. Lackey, Roy Nicholson
  • Patent number: 6905529
    Abstract: An improved filter support structure for supporting filter media. The support structure includes two sections removably coupled together with an improved coupling assembly. The first section has a cross section presenting a first width spaced apart from a second width, the second width being less than the first width. The coupling assembly includes an element carried by the second section, and presents an engagement width that is greater than the second width and less than or equal to the first width such that the element may be shiftably received within the first section at the first width, and can be removably engaged at the second width.
    Type: Grant
    Filed: August 17, 2004
    Date of Patent: June 14, 2005
    Assignee: Air Cure, Inc.
    Inventors: Howard Pipkorn, Kal Ugargol
  • Patent number: 6858052
    Abstract: A filter cartridge for use in a baghouse having a tubesheet with a plurality of opening. A flexible snapband is biased towards engagement with a surface defining one of the openings in the tubesheet and is adapted to receive a portion of the filter cartridge. The snapband has a first surface and a second surface with a pair of protrusions separated by a groove adapted to receive a peripheral edge of one of the tubesheet opening. The pair of protrusions sealingly engage surfaces of the tubesheet. The filter cartridge includes filter media. Structure supports the filter media. A rigid non-metallic tubular collar is integrally formed with the filter media and the structure to secure this filter media and the structure to said collar. The collar includes a pair of longitudinally spaced continuous projections extending radially from the collar.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: February 22, 2005
    Assignee: BHA Group, Inc.
    Inventor: Jack Thomas Clements
  • Patent number: 6840973
    Abstract: An air cleaner is provided which is effective to retain a cleaner element 3 in a heteromorphic shape and which has an increased cleaning capability and an assemblability. The air cleaner includes a cleaner element 3 made of a urethane foam and formed in a tubular form having an endless wall and operable to pass an air therethrough in a direction across the thickness of the cleaner element to purify the air. The cleaner element 3 when viewed from top represents a heteromorphic shape, and first and second retainer plates 7 and 8 made of an elastic material effective to retain the heteromorphic shape of the wall, which plates 7 and 8 are bonded to upper and lower end faces of the cleaner element 3. The cleaner element 3 together with the first and second retainer plates 7 and 8 is carried by a holder assembly 4 and is accommodated within a cleaner housing 1 together with the holder assembly 4.
    Type: Grant
    Filed: May 2, 2003
    Date of Patent: January 11, 2005
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Yasuhiro Kuji, Isamu Nishikawa, Yuichi Kawamoto, Kouji Watanabe
  • Patent number: 6808552
    Abstract: Filtration method and device for filtering solid contaminants from a stream of a flowing fluid such as internal combustion engine intake air. An imperforate housing has a tubular inlet exiting at its downstream end into a conically divergent first wall section terminating in a maximum diameter apex. A convergent second wall section terminates at a housing outlet opening of greater diameter than that of the housing inlet. A perforate filter element disposed within the housing conical portions has an exterior configuration generally complimental to the housing interior, and thus has a first generally conical divergent section, and a second generally conical downstream section convergent from a maximum diameter apex of the filter element and defining the filter device outlet. The housing and filter element define therebetween first and second frustoconical annular fluid flow chambers of successively diminishing cross-sectional radial thickness in the direction of downstream fluid flow.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: October 26, 2004
    Assignee: Borla Perfomance Industries, Inc.
    Inventor: Alexander Borla
  • Patent number: 6790250
    Abstract: An improved filter support structure for supporting filter media. The support structure includes two sections removably coupled together with an improved coupling assembly. The first section has a cross section presenting a first width spaced apart from a second width, the second width being less than the first width. The coupling assembly includes an element carried by the second section, and presents an engagement width that is greater than the second width and less than or equal to the first width such that the element may be shiftably received within the first section at the first width, and can be removably engaged at the second width.
    Type: Grant
    Filed: August 21, 2003
    Date of Patent: September 14, 2004
    Assignee: Air Cure, Inc.
    Inventors: Howard Pipkorn, Kal Ugargol
  • Patent number: 6740136
    Abstract: A filter product includes a filtration media combined with a multi-component frame assembly that can effectively support the filtration media in place proximal to its edges and in accordance with its desired orientation and wherein the assembly can be selectively taken apart to provide access to the filtration media by way of a releasable lock connection. Preferably, a snap-fit releasable locking system is incorporated within the frame design. The present invention is particularly applicable to filtration media comprising pleated filtration media. Such support features include rack-like media engagement elements, which elements are advantageously provided so as to preferably engage the filtration media proximal to its side and end edges from above and below to preferably compress and ensure an effective seal and support connection between the frame and the filtration media.
    Type: Grant
    Filed: October 12, 2001
    Date of Patent: May 25, 2004
    Assignee: 3M Innovative Properties Company
    Inventor: Dean R. Duffy
  • Patent number: 6716266
    Abstract: A dust filter for a ducted air delivery system has a frame, a filter, an extension of rubbery thermoplastic material, and an integral lip. The frame defines an open mouth and a body portion formed of rubbery thermoplastics material reinforced with one or more stiffening elements. The filter material extends from sides of the frame to cover the open mouth. The intermediate extension of rubbery thermoplastic material extends outwardly from a joint with the body portion. The integral lip of flexible resilient material is joined to the intermediate extension. The lip of flexible resilient material is shaped to make a friction fit within the outlet of a duct to hold the dust filter therein.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: April 6, 2004
    Inventor: Craig Douglas McNaughton
  • Patent number: 6663685
    Abstract: A filter assembly for collecting material that is entrained in a gas stream includes a housing for a filter element. The housing has first and second ends with an inlet and an outlet at the first end for the gas that is to be filtered, and a support surface on its internal wall at a point towards its second end. The assembly includes a tubular filter element arranged within the housing for the gas stream to flow through its wall between the inlet and the outlet. The element is located in the housing by way of a support which extends between the filter element at or towards its end and the support surface on the internal side wall of the housing on which the support rests.
    Type: Grant
    Filed: March 4, 2002
    Date of Patent: December 16, 2003
    Assignee: Domnick Hunter Limited
    Inventors: Kenneth Wright, Brian Lane, Stephen Nicholas Smith, Paul David Shaw, Alan Bateman
  • Patent number: RE40481
    Abstract: Filtration method and device for filtering solid contaminants from a stream of a flowing fluid such as internal combustion engine intake air. An imperforate housing has a tubular inlet exiting at its downstream end into a conically divergent first wall section terminating in a maximum diameter apex. A convergent second wall section terminates at a housing outlet opening of greater diameter than that of the housing inlet. A perforate filter element disposed within the housing conical portions has an exterior configuration generally complimental to the housing interior, and thus has a first generally conical divergent section, and a second generally conical downstream section convergent from a maximum diameter apex of the filter element and defining the filter device outlet. The housing and filter element define therebetween first and second frustoconical annular fluid flow chambers of successively diminishing cross-sectional radial thickness in the direction of downstream fluid flow.
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: September 9, 2008
    Assignee: Borla Performance Industries, Inc.
    Inventor: Alexander Borla