CN1120738C - 具有扩散通道的过滤器和制备方法 - Google Patents

具有扩散通道的过滤器和制备方法 Download PDF

Info

Publication number
CN1120738C
CN1120738C CN99108963A CN99108963A CN1120738C CN 1120738 C CN1120738 C CN 1120738C CN 99108963 A CN99108963 A CN 99108963A CN 99108963 A CN99108963 A CN 99108963A CN 1120738 C CN1120738 C CN 1120738C
Authority
CN
China
Prior art keywords
filter
passage
binding agent
boundary layer
channel layer
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
CN99108963A
Other languages
English (en)
Chinese (zh)
Other versions
CN1241449A (zh
Inventor
D·L·杜马
R·J·洛甘
A·C·达金
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.)
Donaldson Co Inc
Original Assignee
Donaldson Co 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 Donaldson Co Inc filed Critical Donaldson Co Inc
Publication of CN1241449A publication Critical patent/CN1241449A/zh
Application granted granted Critical
Publication of CN1120738C publication Critical patent/CN1120738C/zh
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/22Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/0407Constructional details of adsorbing systems
    • B01D53/0446Means for feeding or distributing gases
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D63/00Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/08Flat membrane modules
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/14Reducing influence of physical parameters, e.g. temperature change, moisture, dust
    • G11B33/1486Control/regulation of the pressure, e.g. the pressure inside the housing of a drive
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2253/00Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10Inorganic adsorbents
    • B01D2253/102Carbon
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2253/00Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10Inorganic adsorbents
    • B01D2253/106Silica or silicates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2253/00Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10Inorganic adsorbents
    • B01D2253/116Molecular sieves other than zeolites
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2253/00Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/25Coated, impregnated or composite adsorbents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/20Halogens or halogen compounds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/30Sulfur compounds
    • B01D2257/304Hydrogen sulfide
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/40Nitrogen compounds
    • B01D2257/404Nitrogen oxides other than dinitrogen oxide
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/70Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/702Hydrocarbons
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/80Water
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2265/00Casings, housings or mounting for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2265/04Permanent measures for connecting different parts of the filter, e.g. welding, glueing or moulding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2275/00Filter media structures for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2275/10Multiple layers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2279/00Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
    • B01D2279/45Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for electronic devices, e.g. computers, hard-discs, mobile phones
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2313/00Details relating to membrane modules or apparatus
    • B01D2313/40Adsorbents within the flow path
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/0407Constructional details of adsorbing systems
    • B01D53/0415Beds in cartridges
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26Drying gases or vapours
    • B01D53/261Drying gases or vapours by adsorption

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Filtering Materials (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
CN99108963A 1998-07-13 1999-06-30 具有扩散通道的过滤器和制备方法 Expired - Lifetime CN1120738C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/114,801 1998-07-13
US09/114,801 US5997614A (en) 1998-07-13 1998-07-13 Filter with diffusion channel and methods of making and using the filter

Publications (2)

Publication Number Publication Date
CN1241449A CN1241449A (zh) 2000-01-19
CN1120738C true CN1120738C (zh) 2003-09-10

Family

ID=22357509

Family Applications (1)

Application Number Title Priority Date Filing Date
CN99108963A Expired - Lifetime CN1120738C (zh) 1998-07-13 1999-06-30 具有扩散通道的过滤器和制备方法

Country Status (4)

Country Link
US (1) US5997614A (enExample)
JP (1) JP2000033212A (enExample)
KR (1) KR100505338B1 (enExample)
CN (1) CN1120738C (enExample)

Families Citing this family (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000231775A (ja) * 1999-02-10 2000-08-22 Internatl Business Mach Corp <Ibm> Hdd用ブリーザーフィルタ
US6309437B1 (en) * 1999-06-09 2001-10-30 William H. Jones Computer box filter cover
WO2001014041A2 (en) * 1999-08-23 2001-03-01 Gore Enterprise Holdings, Inc. Filter for removing contaminants from an enclosure
US6296691B1 (en) * 1999-09-21 2001-10-02 Gore Enterprise Holdings, Inc. Multi-functional molded filter for removing contaminants from an enclosure
US6560064B1 (en) * 2000-03-21 2003-05-06 International Business Machines Corporation Disk array system with internal environmental controls
US6475270B1 (en) * 2000-05-22 2002-11-05 3M Innovative Properties Company Nested diffusional filter
US20030219570A1 (en) * 2000-07-17 2003-11-27 Kanter Ray D. Shock absorbing carpet system
JP2004506292A (ja) * 2000-08-16 2004-02-26 ドナルドソン カンパニー,インコーポレイティド ディスクドライブ用の濾過組立体とその使用
JP2002245771A (ja) * 2001-02-13 2002-08-30 Internatl Business Mach Corp <Ibm> ディスク・ドライブ装置、ハード・ディスク・ドライブ、カバー、ベースおよびディスク・ドライブ装置の検査方法
US6709493B2 (en) * 2001-03-26 2004-03-23 Gore Enterprise Holdings, Inc. Device for reducing the presence of moisture within an enclosure containing a heat source
US6916454B2 (en) * 2001-03-30 2005-07-12 Siemens Westinghouse Power Corporation Metal gas separation membrane
US6913736B2 (en) * 2001-03-30 2005-07-05 Siemens Westinghouse Power Corporation Metal gas separation membrane module design
US6475269B1 (en) * 2001-06-12 2002-11-05 Maxtor Corporation Disk drive recirculation filter assembly
JP3966705B2 (ja) * 2001-09-26 2007-08-29 ジャパンゴアテックス株式会社 ガス吸着フィルターの取り付け構造及びガス吸着フィルター付きハウジング
JP3657904B2 (ja) * 2001-10-30 2005-06-08 株式会社東芝 ガス捕集方法およびガス捕集装置
US6822824B2 (en) 2002-06-07 2004-11-23 Seagate Technology Llc Flex circuit bracket which establishes a diffusion path for a data storage device housing
AU2003302735A1 (en) * 2002-12-02 2004-07-09 Donaldson Company, Inc. Various filter elements for hydrogen fuel cell
US7404836B2 (en) * 2003-05-12 2008-07-29 Donaldson Company, Inc. Focused flow filter
US6972927B2 (en) * 2003-09-24 2005-12-06 Seagate Technology Llc Flanged breather filter cartridge with an integrated diffusion path
US7591868B2 (en) * 2003-10-07 2009-09-22 Donaldson Company, Inc. Filter for electronic enclosure
JP4231769B2 (ja) * 2003-11-14 2009-03-04 株式会社日立産機システム フィルタ装置、及びそのフィルタ装置が接続される電力変換装置
US20050108996A1 (en) * 2003-11-26 2005-05-26 Latham Steven R. Filter system for an electronic equipment enclosure
US7125433B2 (en) 2003-12-31 2006-10-24 Donaldson Company, Inc. Dual diffusion channel filter
US7166142B2 (en) * 2003-12-31 2007-01-23 Donaldson Company, Inc. Filter constructions containing breather and recirculation filter elements
US7209319B1 (en) * 2004-06-25 2007-04-24 Western Digital Technologies, Inc. Disk drive having a disk drive component adhered to the disk drive housing via an adhesive assembly having a leveling layer
US7367997B1 (en) * 2004-07-12 2008-05-06 Donaldson Company, Inc. Electronic enclosure filter for very small spaces
US7291208B2 (en) 2004-08-13 2007-11-06 Gore Enterprise Holdings, Inc. Grooved active and passive adsorbent filters
US7306659B2 (en) * 2004-08-13 2007-12-11 Gore Enterprise Holdings Adsorbent breather filter
US7318859B2 (en) 2004-10-18 2008-01-15 Gore Enterprise Holdings Modular adsorbent filters
US20060191249A1 (en) * 2004-11-09 2006-08-31 Gogins Mark A Electronic enclosure filter containing polymer microfiber element
US7217314B2 (en) * 2005-01-10 2007-05-15 Gore Enterprise Holdings, Inc. Venting system for minimizing condensation in a lighting assembly
JP2008528286A (ja) * 2005-02-03 2008-07-31 ドナルドソン カンパニー,インコーポレイティド 汚染物質の拡散を低減するためのブリーザフィルタ
US7611557B2 (en) * 2005-03-24 2009-11-03 Plitek, Llc Reversed pressure relief valve
US20060272507A1 (en) * 2005-04-04 2006-12-07 Johnson Christopher M Adsorbent Carbon Breather with Scrim for Improved Flow
US20070056444A1 (en) * 2005-07-12 2007-03-15 Garikipati Vijay K Electronic Enclosure Filter Containing Fluted Media
US20070103811A1 (en) * 2005-09-09 2007-05-10 Olszewski Jason R Filtration arrangment for electronic enclosure
JP2007190090A (ja) * 2006-01-17 2007-08-02 Pentax Corp 内視鏡用光学系および内視鏡
WO2009012188A2 (en) 2007-07-13 2009-01-22 Donaldson Company, Inc. Contaminant control filter with fill port
US20090090245A1 (en) * 2007-10-04 2009-04-09 Donaldson Company, Inc. Filter assembly
JP2010086629A (ja) * 2008-10-01 2010-04-15 Japan Gore Tex Inc 通気フィルター、電気装置及びその製造方法
JP2010207663A (ja) * 2009-03-06 2010-09-24 Japan Gore Tex Inc 通気フィルター及びこれを用いた電気装置
US8377182B2 (en) 2010-05-14 2013-02-19 Brady Worldwide, Inc. Gas anti diffusion assemblies
US8665555B1 (en) * 2010-06-29 2014-03-04 Western Digital Technologies, Inc. Disk drive with added external labyrinth path during servo track writing
JP5753032B2 (ja) * 2011-09-02 2015-07-22 日東電工株式会社 通気機能を有する接合部材及びそれを用いた接合構造
WO2015064028A1 (ja) * 2013-10-30 2015-05-07 日東電工株式会社 防水通気構造及び防水通気部材
US9183889B1 (en) 2015-03-23 2015-11-10 Western Digital Technologies, Inc. Disk drive having a top cover channel vented to a central cavity via a hole through a bottom land
US9171583B1 (en) 2015-03-23 2015-10-27 Western Digital Technologies, Inc. Disk drive having a top cover channel vented to a central cavity via a peripheral clearance gap
BE1023374B1 (nl) * 2015-08-24 2017-02-24 Sac O2 Nv Werkwijze en inrichting voor het op een onderdeel van een recipiënt aanbrengen van een gasfilter
CN108290105B (zh) * 2016-07-20 2021-08-20 W.L.戈尔及同仁股份有限公司 用于闭合件保护的吸附剂通气装置
US10589219B2 (en) * 2017-10-27 2020-03-17 Seagate Technology Llc Environmental control assemblies
US11344835B2 (en) 2018-08-21 2022-05-31 Donaldson Company, Inc. Filter assembly for an enclosure
CN114556474B (zh) * 2019-08-22 2024-10-11 唐纳森公司 用于外壳的气体补充部件
US11352183B2 (en) 2020-03-05 2022-06-07 Plitek, L.L.C. Pressure relief valve with wetting fluid reservoirs

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3422679A (en) * 1967-12-13 1969-01-21 Gerber Prod Aseptic pressure and/or vacuum measuring device
US3740735A (en) * 1970-09-14 1973-06-19 Diablo Systems Inc Air circulation apparatus
US3822601A (en) * 1973-02-16 1974-07-09 Gen Electric Pneumatic analogue decompression instrument
JPS55119418A (en) * 1979-03-06 1980-09-13 Daishiro Fujishima Gas adsorption sheet
US4329722A (en) * 1980-05-15 1982-05-11 Priam Corporation Enclosed disc drive having combination filter assembly
US4350508A (en) * 1981-12-21 1982-09-21 Santoro Dario S Desiccant cap
US4657570A (en) * 1985-03-20 1987-04-14 Donaldson Company, Inc. Air filter device
US4684510A (en) * 1985-12-20 1987-08-04 Hewlett-Packard Company Method and apparatus for prevention of atmospheric corrosion of electronic equipment
US4684381A (en) * 1986-04-14 1987-08-04 Wasylyniuk Ralph E Chemical filter for use in a cab ventilation system
GB2202076A (en) * 1987-03-06 1988-09-14 Ibm Disc file having at least two filters
US4863499A (en) * 1988-07-29 1989-09-05 Donaldson Company, Inc. Anti-duffusion chemical breather assembly for disk drives
US4889542A (en) * 1988-11-14 1989-12-26 Hayes William J Computer air filter device and method
US4957518A (en) * 1989-06-06 1990-09-18 Brassell Gilbert W Assembly useful for retaining components such as a filter to a container and a corresponding combination
US5130205A (en) * 1989-06-12 1992-07-14 W. R. Grace & Co.-Conn. Laminate and gas permeation module comprising two-component polyurethane adhesive
US5030260A (en) * 1989-12-04 1991-07-09 International Business Machines Corporation Disk drive breather filter
US5593482A (en) * 1990-03-20 1997-01-14 W. L. Gore & Associates, Inc. Adsorbent assembly for removing gaseous contaminants
WO1991014496A1 (en) * 1990-03-20 1991-10-03 W.L. Gore & Associates, Inc. An adsorbent assembly for removing gaseous contaminants
US5124856A (en) * 1990-08-03 1992-06-23 International Business Machines Corporation Magnetic recording device with unitary filter medium to trap organic and inorganic chemical pollutants
US5163870A (en) * 1990-10-30 1992-11-17 Systems Alternatives, Inc. Protective dust cover for computer components
US5108474A (en) * 1991-01-03 1992-04-28 W. L. Gore & Associates, Inc. Smoke filter
US5346518A (en) * 1993-03-23 1994-09-13 International Business Machines Corporation Vapor drain system
US5417743A (en) * 1994-01-21 1995-05-23 W. L. Gore & Associates, Inc. Self-adhesive vent filter and adsorbent assembly with a diffusion tube

Also Published As

Publication number Publication date
US5997614A (en) 1999-12-07
KR20000011596A (ko) 2000-02-25
JP2000033212A (ja) 2000-02-02
CN1241449A (zh) 2000-01-19
KR100505338B1 (ko) 2005-08-03

Similar Documents

Publication Publication Date Title
CN1120738C (zh) 具有扩散通道的过滤器和制备方法
US7125433B2 (en) Dual diffusion channel filter
US7166142B2 (en) Filter constructions containing breather and recirculation filter elements
JP4733321B2 (ja) ガス吸着フィルター
CN101743051B (zh) 具有填充口的污染物控制过滤器
CN100349638C (zh) 包括具有多层褶状支承结构的过滤介质的过滤元件
CN1094064C (zh) 无颗粒化吸附再循环过滤器
CN1258768C (zh) 扩散通道装置和形成该装置的方法
JP4805438B2 (ja) 吸着体又は吸収体を有するフィルタ組立体と装置及び使用方法
CN1267927C (zh) 用于盘片驱动器的过滤器结构及其使用方法
JPH09508061A (ja) 拡散チューブを備えた自己接着性通気フィルター及び吸着剤のアセンブリー
US7095584B2 (en) Integrated chemical breather filter with high and low pressure surfaces
CN101035615A (zh) 浸渍的过滤元件和方法
JP2000033212A5 (enExample)
EP1796817A2 (en) Adsorbent breather filter
CN101460252A (zh) 改进的再循环过滤器
CN108290105B (zh) 用于闭合件保护的吸附剂通气装置
WO1991014496A1 (en) An adsorbent assembly for removing gaseous contaminants
US7404836B2 (en) Focused flow filter
DE60132347D1 (de) Kombinationsfiltersystem mit filtermedium in einem strömungskanal und adsorptionspartikelfiltermedium
WO1999004884A1 (en) High flow absorbent breather filter
JP2004295993A (ja) 呼吸フィルタ
JP2010522071A (ja) 流体処理エレメントのセットを備える流体処理装置及び流体処理装置を製造し使用するための方法

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Donaldson(Wuxi)Filters Co., Ltd.

Assignor: Donaldson Company, Inc.

Contract fulfillment period: 2007.9.1 to 2012.8.31

Contract record no.: 2008990000424

Denomination of invention: Filter with diffusion channel and methods

Granted publication date: 20030910

License type: Exclusive license

Record date: 2008.9.22

LIC Patent licence contract for exploitation submitted for record

Free format text: EXCLUSIVE LICENCE; TIME LIMIT OF IMPLEMENTING CONTACT: 2007.9.1 TO 2012.8.31

Name of requester: DONALDSON (WUXI) FILTERS CO., LTD.

Effective date: 20080922

CX01 Expiry of patent term

Granted publication date: 20030910

CX01 Expiry of patent term