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ZA200208206B - Composite filter and method of making the same. - Google Patents

Composite filter and method of making the same. Download PDF

Info

Publication number
ZA200208206B
ZA200208206B ZA200208206A ZA200208206A ZA200208206B ZA 200208206 B ZA200208206 B ZA 200208206B ZA 200208206 A ZA200208206 A ZA 200208206A ZA 200208206 A ZA200208206 A ZA 200208206A ZA 200208206 B ZA200208206 B ZA 200208206B
Authority
ZA
South Africa
Prior art keywords
fibers
tier
composite filter
upstream
downstream
Prior art date
Application number
ZA200208206A
Other languages
English (en)
Inventor
Jan Schultink
Bas Schultink
Original Assignee
Airflo Europ N V
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=8176660&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ZA200208206(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Airflo Europ N V filed Critical Airflo Europ N V
Publication of ZA200208206B publication Critical patent/ZA200208206B/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
    • B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1615—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of natural origin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
    • 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
    • B01D46/0001—Making 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
    • B01D2275/10—Multiple layers
    • 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
    • B01D2275/30—Porosity of filtering material
    • B01D2275/305—Porosity decreasing in flow direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2279/00—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
    • B01D2279/55—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for cleaning appliances, e.g. suction cleaners
    • 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
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/903—Microfiber, less than 100 micron diameter
    • 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
    • Y10S55/02—Vacuum cleaner bags
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/27—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.]
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/659—Including an additional nonwoven fabric
    • Y10T442/668—Separate nonwoven fabric layers comprise chemically different strand or fiber material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filtering Materials (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Nonwoven Fabrics (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Laminated Bodies (AREA)
  • Color Television Image Signal Generators (AREA)
ZA200208206A 2001-03-02 2002-10-11 Composite filter and method of making the same. ZA200208206B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01105152A EP1236494B1 (en) 2001-03-02 2001-03-02 Composite filter and method of making the same

Publications (1)

Publication Number Publication Date
ZA200208206B true ZA200208206B (en) 2003-07-17

Family

ID=8176660

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA200208206A ZA200208206B (en) 2001-03-02 2002-10-11 Composite filter and method of making the same.

Country Status (16)

Country Link
US (1) US7094270B2 (xx)
EP (1) EP1236494B1 (xx)
JP (1) JP2004532098A (xx)
CN (1) CN1244391C (xx)
AT (1) ATE251937T1 (xx)
AU (1) AU2002240938B2 (xx)
CA (1) CA2439300C (xx)
CZ (1) CZ20032598A3 (xx)
DE (1) DE60100985T2 (xx)
DK (1) DK1236494T3 (xx)
ES (1) ES2208481T3 (xx)
NZ (1) NZ527814A (xx)
PL (1) PL363317A1 (xx)
PT (1) PT1236494E (xx)
WO (1) WO2002070107A2 (xx)
ZA (1) ZA200208206B (xx)

Families Citing this family (66)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8021457B2 (en) 2004-11-05 2011-09-20 Donaldson Company, Inc. Filter media and structure
US8057567B2 (en) 2004-11-05 2011-11-15 Donaldson Company, Inc. Filter medium and breather filter structure
CN101934172B (zh) * 2004-11-05 2016-06-08 唐纳森公司 过滤介质和结构
US12172111B2 (en) 2004-11-05 2024-12-24 Donaldson Company, Inc. Filter medium and breather filter structure
ES2290614T3 (es) * 2004-12-23 2008-02-16 W.L. GORE & ASSOCIATES GMBH Filtro para la entrada de aire de una turbina.
WO2006084282A2 (en) 2005-02-04 2006-08-10 Donaldson Company, Inc. Aerosol separator
US8404014B2 (en) 2005-02-22 2013-03-26 Donaldson Company, Inc. Aerosol separator
JP2008531279A (ja) * 2005-03-07 2008-08-14 ゴア エンタープライズ ホールディングス，インコーポレイティド 複合フィルタ媒体
JP2008538532A (ja) * 2005-04-22 2008-10-30 スリーエム イノベイティブ プロパティズ カンパニー 車両客室エアフィルター装置
CN101163533B (zh) * 2005-04-26 2011-06-22 日东电工株式会社 过滤器滤材及其制造方法和使用方法以及过滤器组件
DE102005043791A1 (de) * 2005-09-13 2007-03-15 Mann + Hummel Gmbh Einrichtung zur Reinigung von Luft
EP1932575B1 (en) * 2005-10-04 2014-11-26 Toray Industries, Inc. Nonwoven fabric for filters
EP1866052A1 (de) * 2005-11-17 2007-12-19 Neenah Gessner GmbH Staubfilterbeutel
DE102005059214B4 (de) 2005-12-12 2007-10-25 Eurofilters N.V. Filterbeutel für einen Staubsauger
DE102006017553B3 (de) 2006-04-13 2007-12-27 Eurofilters N.V. Filterbeutel für einen Staubsauger
US20070251200A1 (en) * 2006-04-26 2007-11-01 Volo Giovanni D Two-stage air filter
US8182568B2 (en) * 2006-04-26 2012-05-22 Volo Giovanni D Two-stage air filter and mask incorporating the same
US7754041B2 (en) * 2006-07-31 2010-07-13 3M Innovative Properties Company Pleated filter with bimodal monolayer monocomponent media
DE102006038440A1 (de) * 2006-08-16 2008-02-21 Robert Bosch Gmbh Filterbeutel zum Filtern feiner Partikel aus einem Gas
US8118177B2 (en) * 2006-10-04 2012-02-21 Sellars Absorbent Materials, Inc. Non-woven webs and methods of manufacturing the same
US8318062B2 (en) 2006-10-04 2012-11-27 Sellars Absorbent Materials, Inc. Industrial absorbents and methods of manufacturing the same
CN101652168A (zh) 2007-02-22 2010-02-17 唐纳森公司 过滤元件及其方法
WO2008103821A2 (en) 2007-02-23 2008-08-28 Donaldson Company, Inc. Formed filter element
DE102007011365B4 (de) * 2007-03-07 2009-02-12 Carl Freudenberg Kg Lage zur Verwendung in einem HEPA-Filterelement sowie Filterelement
US7837756B2 (en) * 2007-04-05 2010-11-23 Aaf-Mcquay Inc. Filter with ePTFE and method of forming
US7981177B2 (en) * 2007-04-18 2011-07-19 Transweb, Llc Filtration media having a slit-film layer
DE102007027299B4 (de) * 2007-06-11 2009-02-26 Johns Manville Europe Gmbh Filter, Verfahren zu dessen Herstellung, dessen Verwendung sowie Filtermodule
US7989372B2 (en) * 2007-06-22 2011-08-02 3M Innovative Properties Company Molded respirator comprising meltblown fiber web with staple fibers
US8070862B2 (en) * 2007-09-04 2011-12-06 3M Innovative Properties Company Dust collection device for sanding tool
CN101939072B (zh) * 2007-11-09 2017-04-05 霍林斯沃思和沃斯有限公司 熔喷过滤介质
US8986432B2 (en) 2007-11-09 2015-03-24 Hollingsworth & Vose Company Meltblown filter medium, related applications and uses
KR101187382B1 (ko) * 2007-12-14 2012-10-02 코오롱인더스트리 주식회사 장섬유 스펀본드 부직포 및 그 제조방법
US8673040B2 (en) 2008-06-13 2014-03-18 Donaldson Company, Inc. Filter construction for use with air in-take for gas turbine and methods
JP2012506764A (ja) 2008-10-27 2012-03-22 セファール ビィーディーエイチ インコーポレイティッド フィルターバッグ、ひいてはプリーツ付け可能な濾過材、そしてその製造方法
WO2010049052A1 (de) 2008-10-31 2010-05-06 Carl Freudenberg Kg Filtermedium zur partikelfiltration
WO2010065949A1 (en) * 2008-12-05 2010-06-10 E. I. Du Pont De Nemours And Company Filter media with nanoweb layer
US8152887B2 (en) * 2008-12-15 2012-04-10 Mann + Hummel Gmbh Air/oil separator
US9885154B2 (en) 2009-01-28 2018-02-06 Donaldson Company, Inc. Fibrous media
US8372292B2 (en) * 2009-02-27 2013-02-12 Johns Manville Melt blown polymeric filtration medium for high efficiency fluid filtration
TWI515035B (zh) * 2009-03-02 2016-01-01 科邁實業有限公司 可再生皺褶式過濾器媒介
US8950587B2 (en) 2009-04-03 2015-02-10 Hollingsworth & Vose Company Filter media suitable for hydraulic applications
WO2011011620A1 (en) * 2009-07-22 2011-01-27 Donaldson Company, Inc. Filter media construction using ptfe film and carbon web for hepa efficiency and odor control
WO2011013121A1 (en) * 2009-07-27 2011-02-03 Airfreedom Ltd. Improved filter configuration
US8679218B2 (en) 2010-04-27 2014-03-25 Hollingsworth & Vose Company Filter media with a multi-layer structure
US20110308386A1 (en) * 2010-06-16 2011-12-22 Jerome Claracq Efficiency-enhanced gas filter medium
US20120152821A1 (en) 2010-12-17 2012-06-21 Hollingsworth & Vose Company Fine fiber filter media and processes
US10155186B2 (en) 2010-12-17 2018-12-18 Hollingsworth & Vose Company Fine fiber filter media and processes
US20120199002A1 (en) * 2011-02-03 2012-08-09 Home Health Medical Equipment Inc., d/b/a AG Industries Filter with odor suppression layer
CN103347585B (zh) 2011-02-03 2016-08-31 唐纳森公司 过滤介质包、过滤器组合件以及方法
CN102179119B (zh) * 2011-04-06 2013-04-10 华南理工大学 一次性高效环保空调过滤网
JP5839547B2 (ja) * 2011-07-28 2016-01-06 日東電工株式会社 フィルタ濾材のプリーツ加工方法およびプリーツ加工装置
USD670051S1 (en) 2011-08-15 2012-10-30 Techtronic Floor Care Technology Limited Filter housing
USD666372S1 (en) 2011-08-15 2012-08-28 Techtronic Floor Care Technology Limited Filter housing
US9642508B1 (en) * 2012-04-16 2017-05-09 Billy Goat Indutries, Inc. Debris-collecting apparatus and method of collecting debris
JP6030350B2 (ja) * 2012-06-21 2016-11-24 株式会社マーレ フィルターシステムズ エアクリーナ用の濾材の製造方法
US9694306B2 (en) 2013-05-24 2017-07-04 Hollingsworth & Vose Company Filter media including polymer compositions and blends
US20160122920A1 (en) * 2014-10-31 2016-05-05 Claude Carey Hobbs Process For Making Non-Woven Insulating Sheeting And Products Of Such Process
US10343095B2 (en) 2014-12-19 2019-07-09 Hollingsworth & Vose Company Filter media comprising a pre-filter layer
CN104790245B (zh) * 2015-03-25 2017-05-10 石家庄天略工业用布有限公司 管式膜支撑高强滤纸及其制备方法
US12420221B2 (en) 2016-07-01 2025-09-23 Hollingsworth & Vose Company Multi-layered electret-containing filtration media
JP7032963B2 (ja) * 2018-03-12 2022-03-09 呉羽テック株式会社 フィルター補強材及びこれを含む脱臭フィルター用濾材
EP3721965A1 (de) * 2019-04-10 2020-10-14 Carl Freudenberg KG Filtermedium mit vliesstoff als einlagiger faserverbund und verfahren zur herstellung eines solchen filtermediums
WO2021252326A1 (en) * 2020-06-08 2021-12-16 Thermopore Materials Corporation Face masks and methods of producing same
EP3964275A1 (en) 2020-09-02 2022-03-09 Impact Products GmbH Composite filter material with adhesive layer for reversible attachment to textile face masks
WO2023038965A1 (en) * 2021-09-07 2023-03-16 Columbus Industries, Inc. Multi-layer, oil-resistant, electro-mechanical synthetic hepa media
CN116005488B (zh) * 2022-12-08 2024-02-13 杭州特种纸业有限公司 一种高耐破度特慢定性滤纸及其制备方法

Family Cites Families (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2732911A (en) 1956-01-31 Disposable dust bags for vacuum cleaners
BE528696A (xx) 1953-05-11
US2813596A (en) 1953-12-02 1957-11-19 Kimberly Clark Co Disposable filter bag
US3073735A (en) * 1955-04-18 1963-01-15 American Viscose Corp Method for producing filters
US3370406A (en) 1963-11-29 1968-02-27 Studley Paper Company Inc Vacuum cleaner filter bag
US3774375A (en) 1971-11-19 1973-11-27 American Air Filter Co Pocket type filter
US4032688A (en) * 1973-08-31 1977-06-28 Pall Corporation Seamless tubular nonwoven webs and filters thereof
US3971373A (en) 1974-01-21 1976-07-27 Minnesota Mining And Manufacturing Company Particle-loaded microfiber sheet product and respirators made therefrom
US4011067A (en) 1974-01-30 1977-03-08 Minnesota Mining And Manufacturing Company Filter medium layered between supporting layers
US4116648A (en) 1976-10-27 1978-09-26 Aktiebolaget Electrolux Multi-layer filter dust bag for a vacuum cleaner
US4257791A (en) 1976-12-21 1981-03-24 Lydall, Inc. Filter
US4164400A (en) 1976-12-21 1979-08-14 Scott/Chatham Company Filters
NL181632C (nl) 1976-12-23 1987-10-01 Minnesota Mining & Mfg Electreetfilter en werkwijze voor het vervaardigen daarvan.
US4215682A (en) 1978-02-06 1980-08-05 Minnesota Mining And Manufacturing Company Melt-blown fibrous electrets
US4375718A (en) * 1981-03-12 1983-03-08 Surgikos, Inc. Method of making fibrous electrets
US4429001A (en) 1982-03-04 1984-01-31 Minnesota Mining And Manufacturing Company Sheet product containing sorbent particulate material
JPS60168511A (ja) 1984-02-10 1985-09-02 Japan Vilene Co Ltd エレクトレツトフイルタの製造方法
US4589894A (en) 1984-04-11 1986-05-20 Minnesota Mining And Manufacturing Co. Disposable filter for a vacuum cleaner
US4714647A (en) 1986-05-02 1987-12-22 Kimberly-Clark Corporation Melt-blown material with depth fiber size gradient
GB8612070D0 (en) 1986-05-19 1986-06-25 Brown R C Blended-fibre filter material
US4948639A (en) 1986-07-31 1990-08-14 Kimberly-Clark Corporation Vacuum cleaner bag
US4925601A (en) 1988-01-19 1990-05-15 Kimberly-Clark Corporation Method for making melt-blown liquid filter medium
DE3812849C3 (de) 1988-04-18 1996-03-21 Gessner & Co Gmbh Staubfilterbeutel, dessen Herstellung und Verwendung
US4917942A (en) 1988-12-22 1990-04-17 Minnesota Mining And Manufacturing Company Nonwoven filter material
US5090975A (en) 1990-09-21 1992-02-25 The Drackett Company High efficiency vacuum cleaner bags
US5244703A (en) 1991-03-22 1993-09-14 Home Care Industries, Inc. Vacuum cleaner bag
US5306534A (en) 1991-03-22 1994-04-26 Home Care Industries, Inc. Vacuum cleaner bag with electrostatically charged meltblown layer
US5230800A (en) 1992-02-20 1993-07-27 Minnesota Mining And Manufacturing Company Scrim inserted electrostatic fibrous filter web
DE4214990A1 (de) 1992-05-06 1993-11-11 Minnesota Mining & Mfg Staubsaugerbeutel und Verfahren zu seiner Herstellung
US5753343A (en) 1992-08-04 1998-05-19 Minnesota Mining And Manufacturing Company Corrugated nonwoven webs of polymeric microfiber
US5730923A (en) 1992-09-28 1998-03-24 The University Of Tennessee Research Corporation Post-treatment of non-woven webs
US5401446A (en) 1992-10-09 1995-03-28 The University Of Tennessee Research Corporation Method and apparatus for the electrostatic charging of a web or film
US5248323A (en) 1992-11-09 1993-09-28 Health-Mor, Inc. Vacuum cleaner and filter thereof
US5419953A (en) 1993-05-20 1995-05-30 Chapman; Rick L. Multilayer composite air filtration media
US5437910A (en) 1993-07-21 1995-08-01 Steinbeis Gessner Gmbh Multi-ply filter lasminate/composite for manufacturing vacuum cleaner filter bags
DE4407344C1 (de) 1994-03-05 1995-05-11 Freudenberg Carl Fa Luftfiltermaterial, seine Verwendung und Herstellung
PL319975A1 (en) * 1994-10-31 1997-09-01 Kimberly Clark Co Non-woven high-density filtering materials
US5647881A (en) 1995-04-20 1997-07-15 Minnesota Mining And Manufacturing Company Shock resistant high efficiency vacuum cleaner filter bag
US5620785A (en) 1995-06-07 1997-04-15 Fiberweb North America, Inc. Meltblown barrier webs and processes of making same
DE19544790C2 (de) 1995-11-30 1998-11-26 Kirchhoff International Gmbh M Wegwerfstaubsaugerbeutel
US5607735A (en) 1995-12-22 1997-03-04 Kimberly-Clark Corporation High efficiency dust sock
US5690711A (en) 1995-12-28 1997-11-25 Home Care Industries, Inc. Vacuum bag with reinforcement patch
DE19606718A1 (de) 1996-02-23 1997-08-28 Vorwerk Co Interholding Mehrlagige Filtertüte
US5667562A (en) 1996-04-19 1997-09-16 Kimberly-Clark Worldwide, Inc. Spunbond vacuum cleaner webs
US6211100B1 (en) 1996-04-30 2001-04-03 Minnesota Mining And Manufacturing Company Synthetic filter media
US5677562A (en) * 1996-05-14 1997-10-14 General Instrument Corporation Of Delaware Planar P-N junction semiconductor structure with multilayer passivation
US5817415A (en) 1996-09-12 1998-10-06 E. I. Du Pont De Nemours And Company Meltblown ionomer microfibers and non-woven webs made therefrom for gas filters
US5800586A (en) 1996-11-08 1998-09-01 Johns Manville International, Inc. Composite filter media
DE19731860C1 (de) 1997-07-24 1999-01-28 Freudenberg Carl Fa Staubfilterbeutel
US6183536B1 (en) * 1998-05-11 2001-02-06 Airflo Europe, N.V. Enhanced performance vacuum cleaner bag and method of operation
US6372004B1 (en) * 1999-07-08 2002-04-16 Airflo Europe N.V. High efficiency depth filter and methods of forming the same
AU2001245621A1 (en) * 2000-03-15 2001-09-24 Hollingsworth And Vose Company Melt blown composite hepa vacuum filter
DE10051186B4 (de) * 2000-10-16 2005-04-07 Fibermark Gessner Gmbh & Co. Ohg Staubfilterbeutel mit hochporöser Trägermateriallage

Also Published As

Publication number Publication date
EP1236494A1 (en) 2002-09-04
EP1236494B1 (en) 2003-10-15
WO2002070107A2 (en) 2002-09-12
CZ20032598A3 (en) 2004-04-14
PL363317A1 (en) 2004-11-15
WO2002070107A3 (en) 2002-10-31
CN1457266A (zh) 2003-11-19
ES2208481T3 (es) 2004-06-16
US20040083695A1 (en) 2004-05-06
AU2002240938B2 (en) 2004-09-30
CA2439300C (en) 2006-10-31
DE60100985D1 (de) 2003-11-20
DE60100985T2 (de) 2004-07-29
NZ527814A (en) 2004-12-24
DK1236494T3 (da) 2004-02-16
US7094270B2 (en) 2006-08-22
PT1236494E (pt) 2004-03-31
CN1244391C (zh) 2006-03-08
JP2004532098A (ja) 2004-10-21
CA2439300A1 (en) 2002-09-12
ATE251937T1 (de) 2003-11-15

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