CA2230570C - Pleated filter assembly - Google Patents

Pleated filter assembly Download PDF

Info

Publication number
CA2230570C
CA2230570C CA002230570A CA2230570A CA2230570C CA 2230570 C CA2230570 C CA 2230570C CA 002230570 A CA002230570 A CA 002230570A CA 2230570 A CA2230570 A CA 2230570A CA 2230570 C CA2230570 C CA 2230570C
Authority
CA
Canada
Prior art keywords
filter
pleat
sidewalls
filter media
endwalls
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CA002230570A
Other languages
English (en)
French (fr)
Other versions
CA2230570A1 (en
Inventor
Dean R. Duffy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of CA2230570A1 publication Critical patent/CA2230570A1/en
Application granted granted Critical
Publication of CA2230570C publication Critical patent/CA2230570C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
    • B01D29/012—Making filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
    • B01D29/05—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements supported
    • B01D29/07—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements supported with corrugated, folded or wound filtering sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/111—Making filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13—Supported filter elements
    • B01D29/15—Supported filter elements arranged for inward flow filtration
    • B01D29/21—Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13—Supported filter elements
    • B01D29/23—Supported filter elements arranged for outward flow filtration
    • B01D29/232—Supported filter elements arranged for outward flow filtration with corrugated, folded or wound sheets
    • 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
    • B01D46/0002—Casings; Housings; Frame constructions
    • B01D46/0016—Folded frame or housing constructions
    • 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
    • B01D46/103—Curved filtering elements
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Filtering Materials (AREA)
CA002230570A 1995-09-15 1996-08-23 Pleated filter assembly Expired - Fee Related CA2230570C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/529,144 1995-09-15
US08/529,144 US5531892A (en) 1995-09-15 1995-09-15 Zigzag filter media and frame having triangular pleat stabilizing elements
PCT/US1996/013710 WO1997010040A1 (en) 1995-09-15 1996-08-23 Pleated filter assembly

Publications (2)

Publication Number Publication Date
CA2230570A1 CA2230570A1 (en) 1997-03-20
CA2230570C true CA2230570C (en) 2006-07-04

Family

ID=24108707

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002230570A Expired - Fee Related CA2230570C (en) 1995-09-15 1996-08-23 Pleated filter assembly

Country Status (6)

Country Link
US (1) US5531892A (OSRAM)
EP (1) EP0851786B1 (OSRAM)
JP (1) JP3790803B2 (OSRAM)
CA (1) CA2230570C (OSRAM)
DE (1) DE69605205T2 (OSRAM)
WO (1) WO1997010040A1 (OSRAM)

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US5679122A (en) * 1993-08-14 1997-10-21 Minnesota Mining & Manufacturing Company Filter for the filtration of a fluid flow
GB2300825B (en) * 1995-05-19 1998-11-18 Philips Electronics Uk Ltd rechargeable filter
US5667545A (en) * 1995-07-03 1997-09-16 Toyoda Boshoku Corporation Filter element for air cleaner and method of manufacturing the same
AU724309B2 (en) * 1996-07-31 2000-09-14 Donaldson Company Inc. Air filter element, assembly and method
US5743927A (en) * 1996-07-31 1998-04-28 Donaldson Company, Inc. Air filter element; assembly; and, method
US6074450A (en) * 1996-10-15 2000-06-13 Raber; Robert R. Air filter assembly
US6033453A (en) * 1997-01-30 2000-03-07 Weddell, Iii; Robert W. Re-usable frame support rack for replaceable pleated-media filter core
US5744036A (en) * 1997-02-03 1998-04-28 Aaf International Pleated filter arrangement
DE19704465A1 (de) * 1997-02-06 1998-08-13 Sartorius Gmbh Filtrationseinheit mit einem plissierten Filterelement
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DE19736290B4 (de) * 1997-08-21 2007-03-29 Carl Freudenberg Kg Verfahren zur Herstellung einer Filteranordnung
DE19742271C1 (de) * 1997-09-25 1999-06-02 Freudenberg Carl Fa Filtereinsatz
US6375699B1 (en) * 1997-10-17 2002-04-23 3M Innovative Properties Company Injection mold for insert-molding a synthetic material around a filter material, filter for the filtration of fluids and method for producing such filter
DE19816238A1 (de) * 1998-04-11 1999-10-14 Knecht Filterwerke Gmbh Versteifungsleiste für ein Filterelement mit zick-zack-förmig gefaltetem Filterbahnmaterial
DE19821676A1 (de) * 1998-05-14 1999-11-18 Freudenberg Carl Fa Filterkassette mit einem in einen biegesteifen Rahmen eingesetzten Filterelement
US6932850B1 (en) 1998-06-29 2005-08-23 Pall Corporation Pleated filter and a method for making the same
US6036752A (en) * 1998-07-28 2000-03-14 3M Innovative Properties Company Pleated filter
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US6126707A (en) * 1999-03-05 2000-10-03 3M Innovative Properties Company Disposable air filter with improved frame
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US8449638B2 (en) 1999-11-05 2013-05-28 Donaldson Company, Inc. Filter element, air cleaner, and methods
US6447566B1 (en) * 2000-06-21 2002-09-10 Freudenberg Nonwovens Limited Partnership Air filtration system with recessed filter and edge banding
US6319300B1 (en) * 2000-07-12 2001-11-20 Liou-Win Chen Filter assembly of an air filter
DE20113026U1 (de) * 2000-08-18 2002-01-31 Helsa-Werke Helmut Sandler GmbH & Co. KG, 95482 Gefrees Filtereinrichtung mit vorbestimmter Strömungsrichtung
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US6800194B1 (en) * 2001-09-26 2004-10-05 Dana Corporation Low waste liquid filter
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US6723150B2 (en) * 2002-02-28 2004-04-20 American Standard International Inc. Air filter with expandable filter media
US6855250B2 (en) 2002-05-13 2005-02-15 Industrial Ceramics Solutions Filter system employing microwave regeneration
DE10235122B3 (de) * 2002-08-01 2004-01-08 Helsa-Werke Helmut Sandler Gmbh & Co. Kg Flexibler Filter
US6986799B2 (en) * 2002-08-21 2006-01-17 Romanow Enterprises, Inc. Recyclable air filter
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DE10321068B4 (de) * 2003-05-10 2009-12-24 Mann + Hummel Gmbh Filterelement
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US7896940B2 (en) * 2004-07-09 2011-03-01 3M Innovative Properties Company Self-supporting pleated filter media
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US7413588B2 (en) * 2004-11-24 2008-08-19 Fleetguard, Inc. High efficiency, low restriction, cost effective filter
US7828870B1 (en) 2004-11-24 2010-11-09 Cummins Filtration Ip, Inc. Filter assembly with cost effective seal
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Also Published As

Publication number Publication date
US5531892A (en) 1996-07-02
EP0851786A1 (en) 1998-07-08
JP3790803B2 (ja) 2006-06-28
CA2230570A1 (en) 1997-03-20
EP0851786B1 (en) 1999-11-17
JPH11511380A (ja) 1999-10-05
DE69605205D1 (de) 1999-12-23
WO1997010040A1 (en) 1997-03-20
DE69605205T2 (de) 2000-05-11

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