DE60021055T2 - Gefaltetes filterelement und verfahren zur herstellung eines gefalteten filterelements - Google Patents

Gefaltetes filterelement und verfahren zur herstellung eines gefalteten filterelements Download PDF

Info

Publication number
DE60021055T2
DE60021055T2 DE60021055T DE60021055T DE60021055T2 DE 60021055 T2 DE60021055 T2 DE 60021055T2 DE 60021055 T DE60021055 T DE 60021055T DE 60021055 T DE60021055 T DE 60021055T DE 60021055 T2 DE60021055 T2 DE 60021055T2
Authority
DE
Germany
Prior art keywords
filter element
filter
height
folds
fold
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 - Lifetime
Application number
DE60021055T
Other languages
German (de)
English (en)
Other versions
DE60021055D1 (de
Inventor
K. Daniel OLSEN
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 Innovative Properties Co
Original Assignee
Cuno Inc
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 Cuno Inc filed Critical Cuno Inc
Publication of DE60021055D1 publication Critical patent/DE60021055D1/de
Application granted granted Critical
Publication of DE60021055T2 publication Critical patent/DE60021055T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B01D46/522—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material with specific folds, e.g. having different lengths
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D27/00—Cartridge filters of the throw-away type
    • B01D27/04—Cartridge filters of the throw-away type with cartridges made of a piece of unitary material, e.g. filter paper
    • B01D27/06—Cartridge filters of the throw-away type with cartridges made of a piece of unitary material, e.g. filter paper with corrugated, folded or wound 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
    • B01D29/11—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
    • B01D29/50—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 multiple filtering elements, characterised by their mutual disposition
    • B01D29/56—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 multiple filtering elements, characterised by their mutual disposition in series connection
    • B01D29/58—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 multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
    • 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
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2411—Filter cartridges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/04—Supports for the filtering elements
    • B01D2201/0407—Perforated supports on both sides of the filtering element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/12—Pleated filters
    • B01D2201/122—Pleated filters with pleats of different length
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Filtering Materials (AREA)
  • Filtration Of Liquid (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
DE60021055T 1999-01-07 2000-01-07 Gefaltetes filterelement und verfahren zur herstellung eines gefalteten filterelements Expired - Lifetime DE60021055T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11502499P 1999-01-07 1999-01-07
US115024P 1999-01-07
PCT/US2000/000438 WO2000040319A1 (en) 1999-01-07 2000-01-07 Pleated filter element and method of forming a pleated filter element

Publications (2)

Publication Number Publication Date
DE60021055D1 DE60021055D1 (de) 2005-08-04
DE60021055T2 true DE60021055T2 (de) 2006-04-27

Family

ID=22358877

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60021055T Expired - Lifetime DE60021055T2 (de) 1999-01-07 2000-01-07 Gefaltetes filterelement und verfahren zur herstellung eines gefalteten filterelements

Country Status (7)

Country Link
US (1) US6315130B1 (enExample)
EP (1) EP1140319B1 (enExample)
JP (2) JP5042408B2 (enExample)
AU (1) AU765826B2 (enExample)
BR (1) BR0008591A (enExample)
DE (1) DE60021055T2 (enExample)
WO (1) WO2000040319A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008050454B3 (de) * 2008-10-08 2009-12-17 Karl Rabofsky Gmbh Verfahren und Faltvorrichtung zum Herstellen von Faltenpaketen mit variabler Faltenhöhe

Families Citing this family (72)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030024872A1 (en) * 1999-06-30 2003-02-06 Pti Advanced Filtration, Inc. Filter having staged pleating
EP1286745A1 (en) * 2000-06-05 2003-03-05 Cuno Incorporated Expansion resistant filter cartridge
WO2002022230A2 (en) * 2000-09-15 2002-03-21 Cuno Incorporated Spiral pleated filter cartridges
DE10061479B4 (de) * 2000-12-08 2007-08-02 Carl Freudenberg Kg Verfahren zur Herstellung eines Filtereinsatzes
US7638042B2 (en) * 2002-02-15 2009-12-29 3M Innovative Properties Company System for monitoring the performance of fluid treatment cartridges
WO2003070351A1 (en) * 2002-02-15 2003-08-28 Cuno Incorporated System for monitoring the performance of fluid treatment cartridges
AU2003275175A1 (en) * 2002-09-26 2004-04-19 3M Innovative Properties Company Filterement including filtration media with multi-layer pleat support
TWI251581B (en) * 2002-10-24 2006-03-21 Kang Na Hsiung Entpr Co Ltd Non-woven fabric filter for processing activated sludge and method for treating wastewater by using such non-woven fabric filter
DE10250969A1 (de) * 2002-11-02 2004-05-19 Hydac Filtertechnik Gmbh Filterelement
EP1592490A4 (en) * 2003-02-14 2007-03-21 WATER-JET EVAPORATED LIQUID FILTER MEDIA AND MANUFACTURING METHOD
US7125490B2 (en) * 2003-05-29 2006-10-24 Porex Corporation Porous filter
JP2007504948A (ja) * 2003-09-12 2007-03-08 スリーエム イノベーティブ プロパティーズ カンパニー 非崩壊性デュアルフィルタエレメント
US20050132682A1 (en) * 2003-12-23 2005-06-23 Paul C. T. Binderless glass composite filter
US7169202B2 (en) * 2003-12-24 2007-01-30 3M Innovative Properties Company Filter assembly
KR20070000513A (ko) * 2004-04-15 2007-01-02 엔테그리스, 아이엔씨. 플리츠형 카트리지 필터 장치
EP1804953A4 (en) * 2004-10-01 2012-04-18 Honeywell Int Inc FILTER AND MANUFACTURING PROCESS
US7645312B2 (en) * 2004-10-15 2010-01-12 3M Innovative Properties Company Pleated multi-layer filter media and cartridge
US20060108277A1 (en) * 2004-11-19 2006-05-25 Fall Brian L Circumferentially pleated filter assembly and method of forming the same
JP2007117945A (ja) 2005-10-31 2007-05-17 Nippon Rokaki Kk フィルタ装置
US8545658B2 (en) * 2005-11-09 2013-10-01 3M Innovative Properties Company Apparatus and methods for forming filter sleeves having circumferential pleats for use in a bag-type filter assembly
US7648546B2 (en) * 2006-01-06 2010-01-19 Cummins Filtration Ip Inc. Filter with variable pleat depth
US7931723B2 (en) * 2006-03-09 2011-04-26 Donaldson Company, Inc. Filter assembly with pleated media pockets, and methods
US20090020472A1 (en) * 2007-07-19 2009-01-22 3M Innovative Properties Company Pleated filter
EP2042221B1 (en) * 2007-07-31 2012-05-02 Sorin Group Italia S.r.l. Filter for body fluids
US20090032469A1 (en) * 2007-07-31 2009-02-05 Sorin Biomedica Cardio S.R.L. Filter for body fluids
EP2231300B1 (en) 2007-12-21 2013-12-11 3M Innovative Properties Company Filter device
WO2009146321A1 (en) 2008-05-30 2009-12-03 3M Innovative Properties Company Ligand functionalized substrates
EP2522692B1 (en) 2008-05-30 2014-06-18 3M Innovative Properties Company Ligand monomers and copolymers made therewith
BRPI0923565A2 (pt) * 2008-12-23 2016-01-26 3M Innovative Properties Co artigo não tecido funcionalizado
US8850719B2 (en) 2009-02-06 2014-10-07 Nike, Inc. Layered thermoplastic non-woven textile elements
US9682512B2 (en) 2009-02-06 2017-06-20 Nike, Inc. Methods of joining textiles and other elements incorporating a thermoplastic polymer material
US20100199406A1 (en) 2009-02-06 2010-08-12 Nike, Inc. Thermoplastic Non-Woven Textile Elements
US8906275B2 (en) 2012-05-29 2014-12-09 Nike, Inc. Textured elements incorporating non-woven textile materials and methods for manufacturing the textured elements
US20100243554A1 (en) * 2009-03-25 2010-09-30 Nathan Herrin Fluid Filter Assembly
WO2010146462A2 (en) * 2009-06-19 2010-12-23 Entegris, Inc. Filter pleat structure
BRPI1011747A2 (pt) 2009-06-23 2018-02-27 3M Innovative Properties Co artigo não tecido funcionalizado.
US8377672B2 (en) 2010-02-18 2013-02-19 3M Innovative Properties Company Ligand functionalized polymers
EP2889625B1 (en) 2010-03-03 2016-09-14 3M Innovative Properties Company Ligand guanidinyl functionalized polymers
WO2011149324A1 (en) * 2010-05-26 2011-12-01 Jaya Filter (M) Sdn Bhd Pleated filter element / cartridge
JP2012091165A (ja) * 2010-09-27 2012-05-17 Powrex Corp 粉粒体処理装置
DE102010056148B4 (de) * 2010-12-28 2013-01-03 Sartorius Stedim Biotech Gmbh Filter
WO2012096583A2 (en) 2011-01-11 2012-07-19 Secura-Nova Spółka Z Ograniczoną Odpowiedzialnością Pleated filter and a method for manufacturing of pleated filters
DE102011003585A1 (de) 2011-02-03 2012-08-09 Mahle International Gmbh Harnstofffiltermaterial
DE102012000470A1 (de) * 2012-01-13 2013-07-18 Mann + Hummel Gmbh Luftfilterelement und Luftfilter
US20130255103A1 (en) 2012-04-03 2013-10-03 Nike, Inc. Apparel And Other Products Incorporating A Thermoplastic Polymer Material
US20130306547A1 (en) * 2012-05-16 2013-11-21 Lydall, Inc Pleated filter media with continually varying intermediate pleat heights
CN104822432B (zh) * 2012-10-09 2017-06-20 唐纳森公司 自承式折叠的片材、过滤元件和方法
JP6258956B2 (ja) * 2012-11-14 2018-01-10 エルテー−フィルターテヒニク ゲゼルシャフト ミット ベシュレンクテル ハフツング フィルタエレメントおよびこの種のフィルタエレメントを有する流体回路
DE102012022283A1 (de) * 2012-11-14 2014-05-15 Rt-Filtertechnik Gmbh Filterelement und hydraulischer Kreislauf mit einem solchen Filterelement
EP2732863A1 (en) 2012-11-15 2014-05-21 Pall Corporation Filter Element
DE102013007605A1 (de) * 2013-05-03 2014-11-06 Hydac Filter Systems Gmbh Filterelement
US10105632B2 (en) 2014-04-09 2018-10-23 Donaldson Company, Inc. Self-supporting folded sheet material, filter elements, and methods
US20150336033A1 (en) * 2014-05-22 2015-11-26 W. L. Gore & Associates, Inc. Filtration Article Containing A Filtration Material Having Twisted Pleats Therein
US9737855B2 (en) * 2014-06-17 2017-08-22 W. L. Gore & Associates, Inc. Filtration article containing a filtration material containing fibrous layers having different lengths
RU2698822C1 (ru) 2015-10-23 2019-08-30 3М Инновейтив Пропертиз Компани Упорядоченный фильтрующий материал для очистки биоматериала
US11752470B2 (en) 2016-08-29 2023-09-12 Emd Millipore Corporation Fixed rigid wall device for compressed pleat configuration filters
DE102016011754A1 (de) * 2016-09-30 2018-04-05 Mann+Hummel Gmbh Filterelement
DE102017003577A1 (de) * 2017-04-12 2018-10-18 Hydac Process Technology Gmbh Vorrichtung zum Behandeln von Fluid
CN115400518B (zh) 2017-09-25 2024-03-26 唐纳森公司 过滤器组件
AU2018383589B2 (en) * 2017-12-14 2023-11-30 Donaldson Company, Inc. Periodic radial symmetry for filter pleating
DE102018101804A1 (de) * 2018-01-26 2019-08-01 Sartorius Stedim Biotech Gmbh Filtermodul
US10688417B2 (en) * 2018-10-24 2020-06-23 Pall Corporation Support and drainage material, filter, and method of use
US11420143B2 (en) 2018-11-05 2022-08-23 Hollingsworth & Vose Company Filter media with irregular structure and/or reversibly stretchable layers
US11433332B2 (en) * 2018-11-05 2022-09-06 Hollingsworth & Vose Company Filter media with irregular structure
WO2020113215A1 (en) * 2018-11-30 2020-06-04 Majid Zia Pleated media for a conical shaped filter element
JP7640464B2 (ja) 2019-03-27 2025-03-05 ドナルドソン カンパニー，インコーポレイティド 軸方向に延在する流れ面を有するパーティクルセパレータフィルタ
KR20220012257A (ko) 2019-05-28 2022-02-03 에스더블유엠 룩셈부르크 개구를 갖는 플리팅된 중합체 시트
KR20210032730A (ko) * 2019-09-17 2021-03-25 코웨이 주식회사 튜브형상의 절곡형 필터부재
US20230313097A1 (en) * 2022-03-31 2023-10-05 Pall Life Sciences Belgium BV Cell culture arrangement, device and method of use
TWI873730B (zh) * 2022-08-04 2025-02-21 美商帷幕公司 包括具有混合褶皺高度的過濾元件的圓柱形多孔過濾器及處理流體之方法
TWI878987B (zh) * 2022-08-04 2025-04-01 美商帷幕公司 包括具有混合褶皺高度的過濾元件的圓柱形多孔過濾器及處理流體之方法
TWI869941B (zh) * 2022-08-04 2025-01-11 美商帷幕公司 包括具有混合褶皺高度的過濾元件的圓柱形多孔過濾器及以該圓柱形多孔過濾器處理流體的方法

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2627350A (en) 1949-01-12 1953-02-03 Wix Accessories Corp Filter cartridge
GB735842A (en) 1953-11-14 1955-08-31 Gen Motors Ltd Improvements in filters for gases
US3022861A (en) 1958-01-08 1962-02-27 American Air Filter Co Filter medium
DE1611083A1 (de) 1967-08-16 1971-05-19 Faudi Feinbau Trennelement
GB1426173A (en) 1972-03-11 1976-02-25 Gen Motors Ltd Fluid filter elements
US4181070A (en) 1977-02-16 1980-01-01 Robbins Alvin M Method of making variable pleat paper
US4184966A (en) * 1977-09-29 1980-01-22 Pall David B Tubular filter elements with improved side seam seal
US4201119A (en) 1978-09-08 1980-05-06 Mine Safety Appliances Company Filter pleating machine
DE3151238C2 (de) 1981-12-22 1984-12-13 Karl Rabofsky GmbH, 1000 Berlin Vorrichtung zum Führen des Faltmessers und zum Betätigen des Kipparmes des Messerbalkens einer Plissiermaschine
US4465213A (en) 1981-12-22 1984-08-14 Karl Rabofsky Gmbh Pleating machine
JPS6058208A (ja) * 1983-09-09 1985-04-04 Kurabo Ind Ltd フイルタ−エレメントとその製法
JPS6061017A (ja) * 1983-09-12 1985-04-08 Nippon Denso Co Ltd 流体濾過エレメントの製造方法
JPS60238111A (ja) * 1984-05-11 1985-11-27 Nippon Rokaki Kk フイルタエレメント
JPS6217320U (enExample) * 1985-07-18 1987-02-02
US4673503A (en) 1985-07-18 1987-06-16 Tokyo Roki Co., Ltd. Variant length pleated filter element
KR900004542B1 (ko) 1986-07-18 1990-06-29 닛뽕 덴소오 가부시기 가이샤 거르개소자의 제조방법 및 장치
JPS6421715U (enExample) * 1987-07-30 1989-02-03
JP3233683B2 (ja) * 1992-05-22 2001-11-26 ジャパンゴアテックス株式会社 撥油性防水性通気フィルター製品
US5543047A (en) 1992-11-06 1996-08-06 Pall Corporation Filter with over-laid pleats in intimate contact
CN1067291C (zh) * 1992-11-06 2001-06-20 帕尔公司 过滤器
DE4345130C1 (de) * 1993-12-30 2000-11-23 Jacobi Systemtechnik Gmbh Hohlzylindrisches Filterelement
US5665235A (en) * 1995-05-09 1997-09-09 Pall Corporation Supported fibrous web assembly
JP3712464B2 (ja) * 1996-02-22 2005-11-02 大和紡績株式会社 カートリッジフィルター及びその製造方法
BR9806721A (pt) 1997-01-20 2000-04-04 Cuno Inc Aparelho e método compreendendo etapas para formação de cartuchos de filtro pregueado helicoidal
JPH10244104A (ja) * 1997-03-06 1998-09-14 Japan Organo Co Ltd プリーツ型カートリッジフィルタ

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008050454B3 (de) * 2008-10-08 2009-12-17 Karl Rabofsky Gmbh Verfahren und Faltvorrichtung zum Herstellen von Faltenpaketen mit variabler Faltenhöhe

Also Published As

Publication number Publication date
AU765826B2 (en) 2003-10-02
US6315130B1 (en) 2001-11-13
EP1140319A1 (en) 2001-10-10
JP2010110760A (ja) 2010-05-20
EP1140319B1 (en) 2005-06-29
JP2002534243A (ja) 2002-10-15
DE60021055D1 (de) 2005-08-04
JP5042408B2 (ja) 2012-10-03
AU2496000A (en) 2000-07-24
BR0008591A (pt) 2002-10-08
WO2000040319A1 (en) 2000-07-13

Similar Documents

Publication Publication Date Title
DE60021055T2 (de) Gefaltetes filterelement und verfahren zur herstellung eines gefalteten filterelements
DE69329118T2 (de) Zick-zack-formig gefaltete filterzusammenstellung und methode und vorrichtung zu deren herstellung
DE3875041T2 (de) Flexibles filterelement, das filterblaetter mit bypass-oeffnungen enthaelt.
DE60303807T2 (de) Ein filterelement mit mehrschichtiger faltenabstützung enthaltendem filterelement
DE69029455T2 (de) Filteranlage
DE69906109T2 (de) Filter und verfahren zum filtrieren eines fluids
DE2530413C3 (de) Beutelförmiges Blutfilter
DE2457289C3 (de) Trennanordnung für ein öl-Wasser-Gemisch
DE4319261C2 (de) Schraubenförmig umwickeltes Filterelement
DE60200569T2 (de) Gefaltetes Filterelement und Verfahren zu seiner Herstellung
DE3874847T2 (de) Biegsamer filtersack und verfahren zur herstellung.
DE2948925A1 (de) Rohrfoermiges filterelement
DE2126080C3 (de) Rohrförmiges Trennelement zum Filtern und Abscheiden von Wasser und Feststoffen aus Kraftstoff
DE60100409T2 (de) Faserfiltermedien
EP2991748B1 (de) Filterelement
WO2014075702A1 (de) Filterelement
DE3337517C2 (de) Filterelement und Verfahren zu seiner Herstellung
WO1999010080A1 (de) Filterelement mit kunststoff-filtermantel
EP1595590A1 (en) Pleated filter element and method of forming a pleated filter element
DE2600228A1 (de) Rohrartiges filter
DE69935432T2 (de) Filterelement und verfahren zu seiner herstellung
DE102019207003B4 (de) Filterelement für eine Filtereinheit und Filtereinheit
DE69930743T2 (de) Faltenfilter und verfahren zur seiner herstellung
DE69704032T2 (de) Filterbeutel mit hoher rückhaltekapazität
DE102019006765A1 (de) Verfahren zum Herstellen eines mehrlagigen Filtermediums sowie ein nach diesem Verfahren hergestelltes Filtermedium

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: 3M INNOVATIVE PROPERTIES CO., ST. PAUL, MINN., US

8328 Change in the person/name/address of the agent

Representative=s name: STROHSCHAENK UND KOLLEGEN, 85521 OTTOBRUNN