WO2004078304A3 - Filter assembly - Google Patents

Filter assembly Download PDF

Info

Publication number
WO2004078304A3
WO2004078304A3 PCT/US2004/003251 US2004003251W WO2004078304A3 WO 2004078304 A3 WO2004078304 A3 WO 2004078304A3 US 2004003251 W US2004003251 W US 2004003251W WO 2004078304 A3 WO2004078304 A3 WO 2004078304A3
Authority
WO
WIPO (PCT)
Prior art keywords
frame
spaced
sheet
filter element
projection
Prior art date
Application number
PCT/US2004/003251
Other languages
French (fr)
Other versions
WO2004078304A2 (en
Inventor
James O Kubokawa
Original Assignee
3M Innovative Properties Co
James O Kubokawa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=32926604&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2004078304(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 3M Innovative Properties Co, James O Kubokawa filed Critical 3M Innovative Properties Co
Priority to CA2518603A priority Critical patent/CA2518603C/en
Publication of WO2004078304A2 publication Critical patent/WO2004078304A2/en
Publication of WO2004078304A3 publication Critical patent/WO2004078304A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
    • B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
    • B01D46/523—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material with means for maintaining spacing between the pleats or folds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0002—Casings; Housings; Frame constructions
    • B01D46/0005—Mounting of filtering elements within casings, housings or frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2275/00—Filter media structures for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2275/20—Shape of filtering material
    • B01D2275/203—Shapes flexible in their geometry, e.g. bendable, adjustable to a certain size
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S55/00—Gas separation
    • Y10S55/31—Filter frame

Abstract

A filter assembly including a frame having a through passageway between front and rear surfaces surrounded by a perimeter portion; and a filter element including a sheet of flexible filter media with longitudinal attachment strips at opposite ends and extending at about a right angle to opposite edges of the sheet. Structure on the frame receives and positions the filter element with the sheet of filter media extending across the passageway with an inlet surface of the sheet facing the same direction as the front surface of the frame and with the attachment strips of the filter element extending along opposite end parts of the perimeter portion. The structure includes first and second generally parallel spaced linear abutments extending along the perimeter portion between its end parts and laying along the opposite edges of the sheet of filter material, and spaced first and second projections on each of the end parts of said frame engaged in first and second openings on a different one of the attachment strips. The first projection at the first end part is spaced the same first distance from the first linear abutment as the first projection at the second end part is spaced from the second linear abutment, and the second projection at said first end part is spaced the same second distance from the second linear abutment as the second projection at the second end is spaced from the first linear abutment. Those first and second distances are different so that the filter element can be mounted on the frame with either of the attachment strips engaged with the projections at either of the end parts while the filter element can only be mounted on the frame with the inlet surface of the sheet facing the same direction as the front surface of the frame.
PCT/US2004/003251 2003-03-04 2004-02-04 Filter assembly WO2004078304A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2518603A CA2518603C (en) 2003-03-04 2004-02-04 Pleated filter assembly with replaceable filter media

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/379,069 2003-03-04
US10/379,069 US6843820B2 (en) 2003-03-04 2003-03-04 Filter assembly

Publications (2)

Publication Number Publication Date
WO2004078304A2 WO2004078304A2 (en) 2004-09-16
WO2004078304A3 true WO2004078304A3 (en) 2004-12-16

Family

ID=32926604

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/003251 WO2004078304A2 (en) 2003-03-04 2004-02-04 Filter assembly

Country Status (3)

Country Link
US (1) US6843820B2 (en)
CA (1) CA2518603C (en)
WO (1) WO2004078304A2 (en)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW542010U (en) * 2002-10-08 2003-07-11 Coretronic Corp Dust-proof filter apparatus
US7037354B1 (en) * 2002-11-22 2006-05-02 Anthony Dimicelli Expandable air filtration apparatus
US7150774B2 (en) * 2003-12-24 2006-12-19 3M Innovative Properties Company Self-spacing pleated filter insert
US7169202B2 (en) * 2003-12-24 2007-01-30 3M Innovative Properties Company Filter assembly
US20050252075A1 (en) * 2004-05-11 2005-11-17 Blue Rhino Global Sourcing, Llc Wave shaped screen for insect trap
US7156891B2 (en) * 2004-09-10 2007-01-02 Filtration Group Incorporated Forced air system air filter
US7393272B2 (en) * 2004-12-29 2008-07-01 3M Innovative Properties Company Air filter assembly
US9036538B2 (en) * 2005-04-19 2015-05-19 Qualcomm Incorporated Frequency hopping design for single carrier FDMA systems
US7452396B2 (en) * 2006-03-01 2008-11-18 Honeywell International Inc. Collapsible auto expanding media filter
US20080066436A1 (en) * 2006-09-14 2008-03-20 Delta M Incorporated Air filter apparatus
US7674306B2 (en) * 2007-02-05 2010-03-09 Visteon Global Technologies, Inc. Multilayered long life filter using convoluted foam
US20080290244A1 (en) * 2007-05-25 2008-11-27 Albright John W Window Air Filter Apparatus and Method
US8241380B2 (en) * 2007-11-19 2012-08-14 Mary Lou Hoffer Air filter duct cover
TW200932085A (en) * 2008-01-03 2009-07-16 Coretronic Corp Display apparatus
US20090183477A1 (en) * 2008-01-23 2009-07-23 Workman Roger L Air filter
US8915986B2 (en) 2008-04-08 2014-12-23 Universal Technologies, Inc. Air filter
EP2563494A4 (en) 2010-04-30 2013-12-18 Diversitech Corp Three-dimensional filter
US8641794B2 (en) * 2010-06-18 2014-02-04 Columbus Industries, Inc. Air filter and air filter system
US8828111B2 (en) 2011-03-07 2014-09-09 Field Controls, Llc Collapsible filter
US8647405B2 (en) 2011-08-01 2014-02-11 Richard E. Gray, JR. Filter housing for accommodating a plurality of filter sizes
WO2013139992A1 (en) * 2012-03-23 2013-09-26 Mann+Hummel Gmbh Filter element and air filter
JP2015192947A (en) * 2014-03-31 2015-11-05 キヤノン株式会社 Dust collection filter
US11192059B2 (en) * 2014-08-25 2021-12-07 3M Innovative Properties Company Uniformly expandable air filter
JP6659093B2 (en) * 2015-06-24 2020-03-04 キヤノン株式会社 Filter frame, filter assembly, and image forming apparatus
US10201773B2 (en) 2015-11-18 2019-02-12 Robert C. Zurmuehlen Filter retainer arrangement
JP6616709B2 (en) * 2016-02-23 2019-12-04 株式会社やまびこ Portable power work machine
US10232295B2 (en) 2016-03-15 2019-03-19 Filtration Group Llc Filter including support frame
US10213721B2 (en) * 2016-04-28 2019-02-26 Cory Elliott Air filter arrangement
CN106362514B (en) * 2016-11-14 2018-10-23 美埃（中国）环境净化有限公司 A kind of collocation wind power industry generating set ventilation filter device
JP2018083164A (en) * 2016-11-25 2018-05-31 キヤノン株式会社 Dust collection filter assembly of image formation apparatus
US10603616B1 (en) * 2017-08-24 2020-03-31 American Air Filter Company, Inc. Reusable filter frame
DE102018215235A1 (en) * 2018-09-07 2020-03-12 Mahle International Gmbh Air filter and a method of manufacturing the air filter
USD950698S1 (en) * 2019-09-09 2022-05-03 Cleanair.Ai Corporation Filter assembly
CA3156858A1 (en) * 2019-10-25 2021-04-29 3M Innovative Properties Company Filter assembly
US11745131B2 (en) * 2020-06-29 2023-09-05 Omachron Intellectual Property Inc. Filter assembly
DE102020123461A1 (en) * 2020-09-09 2022-03-10 Mann+Hummel Gmbh Filter element, cabin air filter and manufacturing process

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09287811A (en) * 1996-04-22 1997-11-04 Matsushita Refrig Co Ltd Air filter device for air conditioner
US5863310A (en) * 1997-03-21 1999-01-26 Brown; Barbara L. Grill/filter mounting assembly
US6379412B1 (en) * 2000-07-21 2002-04-30 Albert Porterfield Air filtering assembly
US20030159415A1 (en) * 2002-02-28 2003-08-28 Parker Nathan P. Air filter with expandable filter media
WO2003105993A2 (en) * 2002-06-14 2003-12-24 3M Innovative Properties Company Filter frame
WO2003105992A2 (en) * 2002-06-14 2003-12-24 3M Innovative Properties Company Filter assembly

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3280984A (en) 1964-06-15 1966-10-25 American Air Filter Co Filter pad and support means therefor
US3774377A (en) 1972-04-21 1973-11-27 American Air Filter Co Filter assembly with replaceable filter element
US3789589A (en) * 1973-02-28 1974-02-05 Res Prod Corp High performance filter assembly
US4042358A (en) 1976-05-14 1977-08-16 Research Products Corporation Filter media
US4334899A (en) * 1981-04-09 1982-06-15 Mcconnell Paul A Snap filter grill and assembly
US5114448A (en) * 1991-10-08 1992-05-19 Cray Research, Inc. Air filtering apparatus
US5332409A (en) * 1993-03-29 1994-07-26 A. J. Dralle, Inc. Air filtration system
US5792242A (en) 1996-02-26 1998-08-11 Minnesota Mining And Manufacturing Co. Electrostatic fibrous filter web
CA2210950A1 (en) 1996-07-31 1998-01-31 Richard J. Osendorf Air filter element; assembly; and method
US6033453A (en) 1997-01-30 2000-03-07 Weddell, Iii; Robert W. Re-usable frame support rack for replaceable pleated-media filter core
US5935282A (en) * 1997-11-13 1999-08-10 Macase Industrial Group G.A., Inc. Cabinet panel having a removable filter element
JPH11351657A (en) 1998-06-05 1999-12-24 Fujitsu General Ltd Air conditioner

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09287811A (en) * 1996-04-22 1997-11-04 Matsushita Refrig Co Ltd Air filter device for air conditioner
US5863310A (en) * 1997-03-21 1999-01-26 Brown; Barbara L. Grill/filter mounting assembly
US6379412B1 (en) * 2000-07-21 2002-04-30 Albert Porterfield Air filtering assembly
US20030159415A1 (en) * 2002-02-28 2003-08-28 Parker Nathan P. Air filter with expandable filter media
WO2003105993A2 (en) * 2002-06-14 2003-12-24 3M Innovative Properties Company Filter frame
WO2003105992A2 (en) * 2002-06-14 2003-12-24 3M Innovative Properties Company Filter assembly

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 03 27 February 1998 (1998-02-27) *

Also Published As

Publication number Publication date
US6843820B2 (en) 2005-01-18
WO2004078304A2 (en) 2004-09-16
CA2518603C (en) 2011-11-01
US20040172928A1 (en) 2004-09-09
CA2518603A1 (en) 2004-09-16

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