DE69914346D1 - Hochwirksames künstliches filtermaterial - Google Patents

Hochwirksames künstliches filtermaterial

Info

Publication number
DE69914346D1
DE69914346D1 DE69914346T DE69914346T DE69914346D1 DE 69914346 D1 DE69914346 D1 DE 69914346D1 DE 69914346 T DE69914346 T DE 69914346T DE 69914346 T DE69914346 T DE 69914346T DE 69914346 D1 DE69914346 D1 DE 69914346D1
Authority
DE
Germany
Prior art keywords
filter material
highly effective
artificial filter
effective artificial
highly
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
DE69914346T
Other languages
English (en)
Other versions
DE69914346T2 (de
Inventor
T Wu
Richard Kinderman
Seyed Abolhassan
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22518223&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69914346(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of DE69914346D1 publication Critical patent/DE69914346D1/de
Application granted granted Critical
Publication of DE69914346T2 publication Critical patent/DE69914346T2/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
    • 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
    • B01D39/163—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin sintered or bonded
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/02—Loose filtering material, e.g. loose fibres
    • B01D39/04—Organic material, e.g. cellulose, cotton
    • 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
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/48—Processes of making filters
    • 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
    • Y10S55/05—Methods of making filter
    • 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
    • Y10S55/39—Electrets separator
    • 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.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2221—Coating or impregnation is specified as water proof
    • Y10T442/2238—Fluorocarbon containing
DE69914346T 1998-09-03 1999-02-16 Hochwirksames künstliches filtermaterial Expired - Lifetime DE69914346T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US146627 1998-09-03
US09/146,627 US6123752A (en) 1998-09-03 1998-09-03 High efficiency synthetic filter medium
PCT/US1999/003188 WO2000013765A1 (en) 1998-09-03 1999-02-16 High efficiency synthetic filter medium

Publications (2)

Publication Number Publication Date
DE69914346D1 true DE69914346D1 (de) 2004-02-26
DE69914346T2 DE69914346T2 (de) 2004-11-11

Family

ID=22518223

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69914346T Expired - Lifetime DE69914346T2 (de) 1998-09-03 1999-02-16 Hochwirksames künstliches filtermaterial

Country Status (9)

Country Link
US (1) US6123752A (de)
EP (1) EP1117467B1 (de)
JP (1) JP2002524226A (de)
KR (1) KR20010073090A (de)
AU (1) AU3293399A (de)
CA (1) CA2340355C (de)
DE (1) DE69914346T2 (de)
TW (1) TW487595B (de)
WO (1) WO2000013765A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10273611B2 (en) 2006-03-28 2019-04-30 Irema-Filter Gmbh Pleatable nonwoven material and method and apparatus for production thereof

Families Citing this family (70)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6432175B1 (en) * 1998-07-02 2002-08-13 3M Innovative Properties Company Fluorinated electret
US6110588A (en) 1999-02-05 2000-08-29 3M Innovative Properties Company Microfibers and method of making
US6630231B2 (en) * 1999-02-05 2003-10-07 3M Innovative Properties Company Composite articles reinforced with highly oriented microfibers
AU2001237000A1 (en) * 2000-02-15 2001-08-27 Hollingsworth And Vose Company Melt blown composite hepa filter media and vacuum bag
JP4581213B2 (ja) * 2000-10-11 2010-11-17 東レ株式会社 エレクトレット加工品の製造方法
JP4581212B2 (ja) * 2000-10-11 2010-11-17 東レ株式会社 エレクトレット加工品の製造方法
CA2428868C (en) 2000-11-14 2007-03-13 Lydall, Inc. Air laid/wet laid gas filtration media
JP3780916B2 (ja) * 2000-11-28 2006-05-31 東レ株式会社 エレクトレット加工品の製造方法
DE10059050C2 (de) * 2000-11-28 2003-02-27 Freudenberg Carl Kg Verfahren zur Herstellung eines triboelektrisch geladenen Vliesstoffs
JP4670144B2 (ja) * 2000-12-04 2011-04-13 東レ株式会社 エレクトレット加工品の製造方法
US6420024B1 (en) * 2000-12-21 2002-07-16 3M Innovative Properties Company Charged microfibers, microfibrillated articles and use thereof
JP4747255B2 (ja) * 2000-12-27 2011-08-17 Ｊｎｃ株式会社 帯電性を有するトウおよびそれを用いた積層体
WO2002089956A1 (en) * 2001-05-02 2002-11-14 Hollingsworth & Vose Company Filter media with enhanced stiffness and increased dust holding capacity
US6680114B2 (en) 2001-05-15 2004-01-20 3M Innovative Properties Company Fibrous films and articles from microlayer substrates
US6969484B2 (en) 2001-06-18 2005-11-29 Toray Industries, Inc. Manufacturing method and device for electret processed product
US20030054716A1 (en) * 2001-09-07 2003-03-20 3M Innovative Properties Company Method of making an electret
DE50115833D1 (de) * 2001-12-08 2011-05-12 Ibs Filtran Kunststoff Metall on
US20030203696A1 (en) * 2002-04-30 2003-10-30 Healey David Thomas High efficiency ashrae filter media
US6923182B2 (en) 2002-07-18 2005-08-02 3M Innovative Properties Company Crush resistant filtering face mask
EP1416745A1 (de) * 2002-10-31 2004-05-06 Siemens Aktiengesellschaft Lokalisierungsverfahren
DE10310435B3 (de) * 2003-02-05 2004-06-03 Helsa-Werke Helmut Sandler Gmbh & Co. Kg Filterelement und Verfahren zu seiner Herstellung
US20050000642A1 (en) * 2003-07-03 2005-01-06 3M Innovative Properties Company Cling articles
US7025806B2 (en) 2003-11-25 2006-04-11 Stri{dot over (o)}nAir, Inc. Electrically enhanced air filtration with improved efficacy
US7097694B1 (en) 2003-12-04 2006-08-29 Fleetguard, Inc. High performance, high efficiency filter
US20050148266A1 (en) * 2003-12-30 2005-07-07 Myers David L. Self-supporting pleated electret filter media
DE102006048076A1 (de) * 2006-10-09 2008-04-10 Mann + Hummel Gmbh Filtereinrichtung, insbesondere zur Filtration von Verbrennungsluft in Brennkraftmaschinen
EP2005453B1 (de) * 2006-04-11 2009-09-09 Basf Se Electretmaterialien
US20080017038A1 (en) * 2006-07-21 2008-01-24 3M Innovative Properties Company High efficiency hvac filter
KR101423586B1 (ko) * 2006-08-25 2014-07-25 폴 코포레이션 정화 요소를 포함하는 유체 조립체
US20080249269A1 (en) 2007-04-05 2008-10-09 Hui Chin Electret materials
US8986432B2 (en) 2007-11-09 2015-03-24 Hollingsworth & Vose Company Meltblown filter medium, related applications and uses
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
KR101554052B1 (ko) * 2007-12-06 2015-09-17 쓰리엠 이노베이티브 프로퍼티즈 컴파니 전하 증대 접착제를 갖는 일렉트릿 웨브
EP2234662B1 (de) * 2008-01-25 2017-01-11 Flodins Filter Aktiebolag Filter
WO2009148744A2 (en) * 2008-06-02 2009-12-10 3M Innovative Properties Company Electret webs with charge-enhancing additives
DE102008047552A1 (de) * 2008-09-16 2010-04-08 Carl Freudenberg Kg Elektretfilterelement und Verfahren zu dessen Herstellung
EP2340098B1 (de) * 2008-10-31 2016-11-30 Carl Freudenberg KG Filtermedium zur partikelfiltration
US8906275B2 (en) 2012-05-29 2014-12-09 Nike, Inc. Textured elements incorporating non-woven textile materials and methods for manufacturing the textured 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
US20100199520A1 (en) * 2009-02-06 2010-08-12 Nike, Inc. Textured Thermoplastic Non-Woven Elements
US8850719B2 (en) 2009-02-06 2014-10-07 Nike, Inc. Layered thermoplastic non-woven textile elements
US20100212272A1 (en) * 2009-02-24 2010-08-26 Hollingsworth & Vose Company Filter media suitable for ashrae applications
KR101679894B1 (ko) 2009-04-03 2016-11-25 쓰리엠 이노베이티브 프로퍼티즈 컴파니 일렉트릿 웨브를 포함하는, 올레핀성 웨브를 위한 가공 보조제
US8950587B2 (en) 2009-04-03 2015-02-10 Hollingsworth & Vose Company Filter media suitable for hydraulic applications
JP5706875B2 (ja) 2009-04-03 2015-04-22 スリーエム イノベイティブ プロパティズ カンパニー 帯電強化添加剤を含むエレクトレットウェブ
US8679218B2 (en) 2010-04-27 2014-03-25 Hollingsworth & Vose Company Filter media with a multi-layer structure
BR112013004279B1 (pt) 2010-08-23 2021-01-05 Fiberweb Holdings Limited trama não tecida e fibras com propriedades de eletreto, processos de fabricação das mesmas e seu uso
DE102010052155A1 (de) 2010-11-22 2012-05-24 Irema-Filter Gmbh Luftfiltermedium mit zwei Wirkmechanismen
US10155186B2 (en) 2010-12-17 2018-12-18 Hollingsworth & Vose Company Fine fiber filter media and processes
US20120152821A1 (en) 2010-12-17 2012-06-21 Hollingsworth & Vose Company Fine fiber filter media and processes
US20130255103A1 (en) 2012-04-03 2013-10-03 Nike, Inc. Apparel And Other Products Incorporating A Thermoplastic Polymer Material
EP3159056A1 (de) * 2012-06-14 2017-04-26 Irema-Filter GmbH Filtermedium aus synthetischem polymer
US9149748B2 (en) 2012-11-13 2015-10-06 Hollingsworth & Vose Company Multi-layered filter media
US11090590B2 (en) 2012-11-13 2021-08-17 Hollingsworth & Vose Company Pre-coalescing multi-layered filter media
US9149749B2 (en) 2012-11-13 2015-10-06 Hollingsworth & Vose Company Pre-coalescing multi-layered filter media
CN105188877A (zh) * 2013-02-06 2015-12-23 达斯帝私人有限公司达斯帝联合信托公司 过滤介质
DE102013008402A1 (de) 2013-05-16 2014-11-20 Irema-Filter Gmbh Faservlies und Verfahren zur Herstellung desselben
US9694306B2 (en) 2013-05-24 2017-07-04 Hollingsworth & Vose Company Filter media including polymer compositions and blends
WO2015039098A1 (en) * 2013-09-16 2015-03-19 Enverid Systems, Inc. Method and system for filtering formaldehyde from indoor air
US10399024B2 (en) 2014-05-15 2019-09-03 Hollingsworth & Vose Company Surface modified filter media
US10195542B2 (en) 2014-05-15 2019-02-05 Hollingsworth & Vose Company Surface modified filter media
DE102014117506A1 (de) 2014-11-28 2016-06-02 Filta Co., Ltd Filtermedium mit großem Faltenabstand
US10343095B2 (en) 2014-12-19 2019-07-09 Hollingsworth & Vose Company Filter media comprising a pre-filter layer
US10828587B2 (en) 2015-04-17 2020-11-10 Hollingsworth & Vose Company Stable filter media including nanofibers
KR101731948B1 (ko) * 2015-05-29 2017-05-02 주식회사 피켐에프코리아 공기 정화 장치
US10625196B2 (en) 2016-05-31 2020-04-21 Hollingsworth & Vose Company Coalescing filter media
JP2018095973A (ja) * 2016-12-08 2018-06-21 東レ株式会社 メルトブロー不織布
CN110820174B (zh) * 2019-11-20 2021-05-28 邯郸恒永防护洁净用品有限公司 一种聚丙烯熔喷无纺布的驻极设备
CN111394887B (zh) * 2020-03-20 2022-04-08 江苏丽洋新材料股份有限公司 一种液体摩擦驻极体过滤材料的制备装置

Family Cites Families (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4011067A (en) * 1974-01-30 1977-03-08 Minnesota Mining And Manufacturing Company Filter medium layered between supporting layers
US4011506A (en) * 1975-02-12 1977-03-08 Bowden Ralph H TV service triggered oscilloscope
JPS5735920A (en) * 1980-08-14 1982-02-26 Yoshimi Oshitari Filter medium for air
US4375718A (en) * 1981-03-12 1983-03-08 Surgikos, Inc. Method of making fibrous electrets
AU565762B2 (en) * 1983-02-04 1987-09-24 Minnesota Mining And Manufacturing Company Method and apparatus for manufacturing an electret filter medium
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
US4874659A (en) * 1984-10-24 1989-10-17 Toray Industries Electret fiber sheet and method of producing same
GB8605033D0 (en) * 1986-02-28 1986-04-09 Shell Int Research Fluid driven pumping apparatus
US4824451A (en) * 1985-12-31 1989-04-25 Kimberly-Clark Corporation Melt-blown filter medium
US4650506A (en) * 1986-02-25 1987-03-17 Donaldson Company, Inc. Multi-layered microfiltration medium
US4874399A (en) * 1988-01-25 1989-10-17 Minnesota Mining And Manufacturing Company Electret filter made of fibers containing polypropylene and poly(4-methyl-1-pentene)
JP2672329B2 (ja) * 1988-05-13 1997-11-05 東レ株式会社 エレクトレット材料
JP2797482B2 (ja) * 1989-07-21 1998-09-17 東洋紡績株式会社 均繊度の良好な不織布
US5017197A (en) * 1989-11-09 1991-05-21 Mcguire Thomas F Glove bag and method of use
CA2037942A1 (en) * 1990-03-12 1991-09-13 Satoshi Matsuura Process for producing an electret, a film electret, and an electret filter
US5069691B2 (en) * 1990-11-14 1996-11-05 Abatement Technologies Portable filtration unit
US5230723A (en) * 1990-11-14 1993-07-27 Abatement Technologies Portable filtration unit
US5102435A (en) * 1991-03-11 1992-04-07 Hako Minuteman, Inc. Vacuum suction machine with high efficiency filter and operating interlock
US5240479A (en) * 1991-05-17 1993-08-31 Donaldson Company, Inc. Pleated filter media having a continuous bead of adhesive between layers of filtering material
JP3164159B2 (ja) * 1991-05-31 2001-05-08 東洋紡績株式会社 海塩粒子除去用エレクトレットエアフィルター
US5427597A (en) * 1992-07-07 1995-06-27 Donaldson Company, Inc. Layered air filter medium having improved efficiency and pleatability
US5306321A (en) * 1992-07-07 1994-04-26 Donaldson Company, Inc. Layered air filter medium having improved efficiency and pleatability
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
US5273565A (en) * 1992-10-14 1993-12-28 Exxon Chemical Patents Inc. Meltblown fabric
US5301388A (en) * 1992-12-04 1994-04-12 Zeren Joseph D Critically safe vacuum pickup for use in wet or dry cleanup of radioactive materials
JPH06257065A (ja) * 1993-03-04 1994-09-13 Toyobo Co Ltd 超高性能エレクトレットメルトブロー不織布
JP2910484B2 (ja) * 1993-03-12 1999-06-23 東洋紡績株式会社 エレクトレット不織布の製造方法
AU669420B2 (en) * 1993-03-26 1996-06-06 Minnesota Mining And Manufacturing Company Oily mist resistant electret filter media
US5658640A (en) * 1993-08-17 1997-08-19 Minnesota Mining And Manufacturing Company Electret filter media having an undulated surface
WO1995005232A1 (en) * 1993-08-17 1995-02-23 Minnesota Mining And Manufacturing Company Filter media having an undulated surface
KR100336012B1 (ko) * 1993-08-17 2002-10-11 미네소타 마이닝 앤드 매뉴팩춰링 캄파니 일렉트릿필터매체를하전시키는방법
US5834386A (en) * 1994-06-27 1998-11-10 Kimberly-Clark Worldwide, Inc. Nonwoven barrier
US5582907A (en) * 1994-07-28 1996-12-10 Pall Corporation Melt-blown fibrous web
DE9414040U1 (de) * 1994-08-30 1995-01-19 Hoechst Ag Vliese aus Elektretfasermischungen mit verbesserter Ladungsstabilität
US5645627A (en) * 1995-02-28 1997-07-08 Hollingsworth & Vose Company Charge stabilized electret filter media
US5507859A (en) * 1995-04-03 1996-04-16 Kaiser; David M. Safe collection and disposal of hazardous, dry particulate material
US5620785A (en) * 1995-06-07 1997-04-15 Fiberweb North America, Inc. Meltblown barrier webs and processes of making same
ZA965786B (en) * 1995-07-19 1997-01-27 Kimberly Clark Co Nonwoven barrier and method of making the same
US5908598A (en) * 1995-08-14 1999-06-01 Minnesota Mining And Manufacturing Company Fibrous webs having enhanced electret properties
US5792242A (en) * 1996-02-26 1998-08-11 Minnesota Mining And Manufacturing Co. Electrostatic fibrous filter web
US5667562A (en) * 1996-04-19 1997-09-16 Kimberly-Clark Worldwide, Inc. Spunbond vacuum cleaner webs
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10273611B2 (en) 2006-03-28 2019-04-30 Irema-Filter Gmbh Pleatable nonwoven material and method and apparatus for production thereof

Also Published As

Publication number Publication date
WO2000013765A1 (en) 2000-03-16
JP2002524226A (ja) 2002-08-06
TW487595B (en) 2002-05-21
CA2340355C (en) 2007-05-01
AU3293399A (en) 2000-03-27
DE69914346T2 (de) 2004-11-11
EP1117467A1 (de) 2001-07-25
KR20010073090A (ko) 2001-07-31
CA2340355A1 (en) 2000-03-16
US6123752A (en) 2000-09-26
EP1117467B1 (de) 2004-01-21

Similar Documents

Publication Publication Date Title
DE69914346D1 (de) Hochwirksames künstliches filtermaterial
DE69619142T2 (de) Filtermaterial
DE60003664D1 (de) Filtermaterial
ID20115A (id) Filter
DE69612121D1 (de) Filtermaterial
DE69923714D1 (de) Zusammenlegbarer filter
DE69909878D1 (de) Filtervorrichtung
DE59903963D1 (de) Filterelement
DE69922710D1 (de) Gasadsorbierendes material
NO20004079L (no) Roterende filter
DE69904791T2 (de) Filterelement
DE59912091D1 (de) Filtervorrichtung
DE69823629D1 (de) Filter
FI972210A (fi) Hiostamaton materiaali
DE69836205D1 (de) Filtervorrichtung
DE69914264D1 (de) Knochenregenerierungsmaterial
DE69928586D1 (de) Filter
ID23470A (id) Filter
FI970538A0 (fi) Rengoeringsanordning foer filter i dammfiltreringsanordning
DE69906090T2 (de) Filteranordnungen
NO20013232L (no) Faststoffmateriale
DE29609029U1 (de) Kunststeinelement
DE69931849D1 (de) Zeitdiskretes filter
DE59908230D1 (de) Filtervorrichtung
DE29709719U1 (de) Filter

Legal Events

Date Code Title Description
8363 Opposition against the patent
8365 Fully valid after opposition proceedings
8328 Change in the person/name/address of the agent

Representative=s name: PAE REINHARD, SKUHRA, WEISE & PARTNER GBR, 80801 M