DE69620074D1 - Rückschlagventil - Google Patents

Rückschlagventil

Info

Publication number
DE69620074D1
DE69620074D1 DE69620074T DE69620074T DE69620074D1 DE 69620074 D1 DE69620074 D1 DE 69620074D1 DE 69620074 T DE69620074 T DE 69620074T DE 69620074 T DE69620074 T DE 69620074T DE 69620074 D1 DE69620074 D1 DE 69620074D1
Authority
DE
Germany
Prior art keywords
check valve
check
valve
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
DE69620074T
Other languages
English (en)
Other versions
DE69620074T2 (de
Inventor
John Lawrence Bowers
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=10778752&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69620074(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 DE69620074D1 publication Critical patent/DE69620074D1/de
Application granted granted Critical
Publication of DE69620074T2 publication Critical patent/DE69620074T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/16—Check valves with flexible valve members with tongue-shaped laminae
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
    • A62B18/10—Valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/144—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery
    • 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
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7879—Resilient material valve
    • Y10T137/7888—With valve member flexing about securement
    • Y10T137/7891—Flap or reed

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Check Valves (AREA)
DE1996620074 1995-08-04 1996-07-16 Rückschlagventil Expired - Lifetime DE69620074T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9515986A GB9515986D0 (en) 1995-08-04 1995-08-04 Uni-directional fluid valve

Publications (2)

Publication Number Publication Date
DE69620074D1 true DE69620074D1 (de) 2002-05-02
DE69620074T2 DE69620074T2 (de) 2002-08-01

Family

ID=10778752

Family Applications (2)

Application Number Title Priority Date Filing Date
DE1996620074 Expired - Lifetime DE69620074T2 (de) 1995-08-04 1996-07-16 Rückschlagventil
DE1996633804 Expired - Lifetime DE69633804T2 (de) 1995-08-04 1996-07-16 Gesichtsmaske mit Filter

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE1996633804 Expired - Lifetime DE69633804T2 (de) 1995-08-04 1996-07-16 Gesichtsmaske mit Filter

Country Status (8)

Country Link
US (2) US5687767A (de)
EP (2) EP1203599B1 (de)
AU (1) AU709637B2 (de)
CA (1) CA2181878C (de)
DE (2) DE69620074T2 (de)
ES (2) ES2171617T3 (de)
GB (1) GB9515986D0 (de)
HK (1) HK1013433A1 (de)

Families Citing this family (112)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5325892A (en) * 1992-05-29 1994-07-05 Minnesota Mining And Manufacturing Company Unidirectional fluid valve
US7117868B1 (en) 1992-05-29 2006-10-10 3M Innovative Properties Company Fibrous filtration face mask having a new unidirectional fluid valve
AU665082B2 (en) 1992-05-29 1995-12-14 Minnesota Mining And Manufacturing Company Unidirectional fluid valve
US5957978A (en) * 1997-12-22 1999-09-28 Hansa Medical Products, Inc. Valved fenestrated tracheotomy tube
US6722367B1 (en) 1997-12-22 2004-04-20 Hansa Medical Products, Inc. Valved fenestrated tracheotomy tube having outer and inner cannulae
US5970801A (en) * 1997-12-30 1999-10-26 Bear Medical Systems, Inc. Variable orifice flow sensor
SE9802123D0 (sv) * 1998-06-15 1998-06-15 Siemens Elema Ab Riktningsventil
US6047698A (en) * 1998-08-20 2000-04-11 Moldex-Metric, Inc. Unidirectional fluid valve
US6283122B1 (en) * 1999-03-10 2001-09-04 Flight Medical Ltd. Exhalation valve for respirator
US6357473B1 (en) 1999-05-28 2002-03-19 Ligon Brother Manufacturing Company One way anti-backflow valve
US6837265B2 (en) * 1999-05-28 2005-01-04 Ligon Brothers Manufacturing Co. One way anti-back flow valve
AU6058000A (en) * 1999-07-12 2001-01-30 Scimed Life Systems, Inc. Liquid based vaso-occlusive compositions
US6604524B1 (en) * 1999-10-19 2003-08-12 3M Innovative Properties Company Manner of attaching component elements to filtration material such as may be utilized in respiratory masks
US6460539B1 (en) 2000-09-21 2002-10-08 3M Innovative Properties Company Respirator that includes an integral filter element, an exhalation valve, and impactor element
US8026280B2 (en) * 2001-03-27 2011-09-27 Errant Gene Therapeutics, Llc Histone deacetylase inhibitors
US6969314B2 (en) * 2001-05-03 2005-11-29 Cadillac Automotive Products Compang Air exhauster invention
US7849856B2 (en) 2001-06-25 2010-12-14 3M Innovative Properties Company Respirator valve
US6883518B2 (en) * 2001-06-25 2005-04-26 3M Innovative Properties Company Unidirectional respirator valve
US6609535B2 (en) * 2001-07-24 2003-08-26 Henry A. Opperman Reed valve and method of making same
US7028689B2 (en) * 2001-11-21 2006-04-18 3M Innovative Properties Company Filtering face mask that uses an exhalation valve that has a multi-layered flexible flap
US7171967B2 (en) * 2002-06-05 2007-02-06 Louis M. Gerson Co., Inc. Face mask and method of manufacturing the same
US20040261795A1 (en) * 2002-08-28 2004-12-30 Brunell Robert A. Respirator mask and valve
US7651513B2 (en) * 2003-04-03 2010-01-26 Boston Scientific Scimed, Inc. Flexible embolic device delivery system
WO2004112906A1 (en) * 2003-06-17 2004-12-29 Louis M. Gerson Co., Inc. Respirator mask and valve
US7188622B2 (en) * 2003-06-19 2007-03-13 3M Innovative Properties Company Filtering face mask that has a resilient seal surface in its exhalation valve
US7650884B2 (en) 2003-11-21 2010-01-26 3M Innovative Properties Company Respiratory facepiece and method of making a facepiece using separate molds
US20050145249A1 (en) 2003-12-31 2005-07-07 Solyntjes Alan J. Personal respiratory protection device that has a permanent or semi-permanent bayonet connection
US7320722B2 (en) * 2004-10-29 2008-01-22 3M Innovative Properties Company Respiratory protection device that has rapid threaded clean air source attachment
US8171933B2 (en) * 2005-08-25 2012-05-08 3M Innovative Properties Company Respirator having preloaded nose clip
US7503326B2 (en) * 2005-12-22 2009-03-17 3M Innovative Properties Company Filtering face mask with a unidirectional valve having a stiff unbiased flexible flap
US8707956B2 (en) 2005-12-27 2014-04-29 Hansa Medical Products, Inc. Endotracheal tube having outer and inner cannulae
US9579477B2 (en) 2005-12-27 2017-02-28 Hansa Medical Products, Inc. Endotracheal tube having outer and inner cannulae
US7987851B2 (en) 2005-12-27 2011-08-02 Hansa Medical Products, Inc. Valved fenestrated tracheotomy tube having outer and inner cannulae
US20070175523A1 (en) * 2006-01-31 2007-08-02 Levey Kenneth R Pressure relief assembly
FI20065120A0 (fi) * 2006-02-17 2006-02-17 Euromaski Oy Suojalaite
US20080178884A1 (en) * 2007-01-25 2008-07-31 Gerson Ronald L Fluid Valve with Center Post
US9770611B2 (en) 2007-05-03 2017-09-26 3M Innovative Properties Company Maintenance-free anti-fog respirator
US20080271739A1 (en) 2007-05-03 2008-11-06 3M Innovative Properties Company Maintenance-free respirator that has concave portions on opposing sides of mask top section
AU2008302602B2 (en) * 2007-09-20 2012-03-15 3M Innovative Properties Company Filtering face-piece respirator having a frame for supporting the exhalation valve
KR101580339B1 (ko) 2007-09-20 2015-12-23 쓰리엠 이노베이티브 프로퍼티즈 컴파니 확장가능한 마스크 본체를 구비하는 안면부 여과식 호흡기
JP5312472B2 (ja) 2007-11-27 2013-10-09 スリーエム イノベイティブ プロパティズ カンパニー 一方向弁を備えるフェースマスク
MX2010006177A (es) * 2007-12-06 2010-07-01 3M Innovative Properties Co Redes de electretos con aditivos que intensifican la carga.
US20090235934A1 (en) 2008-03-24 2009-09-24 3M Innovative Properties Company Filtering face-piece respirator having an integrally-joined exhalation valve
JP2009254418A (ja) * 2008-04-11 2009-11-05 Three M Innovative Properties Co マスク用ノーズクリップ及びマスク
EP2297086A4 (de) * 2008-06-02 2012-01-25 3M Innovative Properties Co Ladungssteigernde zusätze für elektrete
US7765698B2 (en) * 2008-06-02 2010-08-03 3M Innovative Properties Company Method of making electret articles based on zeta potential
EP2294257B1 (de) * 2008-06-02 2014-01-22 3M Innovative Properties Company Elektretvliese mit ladungsverstärkenden additiven
KR101025787B1 (ko) 2008-08-20 2011-04-04 (주)파인텍 일체형 날숨막에 의한 배기밸브가 형성된 마스크
KR100912233B1 (ko) 2008-12-12 2009-08-14 (주)피앤티디 마스크
US11083916B2 (en) * 2008-12-18 2021-08-10 3M Innovative Properties Company Flat fold respirator having flanges disposed on the mask body
US20100252047A1 (en) 2009-04-03 2010-10-07 Kirk Seth M Remote fluorination of fibrous filter webs
ITPD20090117A1 (it) * 2009-05-04 2010-11-05 Euroflex Srl Spruzzatore a mano per liquidi detergenti
US10065481B2 (en) * 2009-08-14 2018-09-04 Freudenberg Filtration Technologies, L.P. Non-woven air exhauster and filter
US8881729B2 (en) 2009-09-18 2014-11-11 3M Innovative Properties Company Horizontal flat-fold filtering face-piece respirator having indicia of symmetry
US8640704B2 (en) * 2009-09-18 2014-02-04 3M Innovative Properties Company Flat-fold filtering face-piece respirator having structural weld pattern
KR20110031144A (ko) 2009-09-18 2011-03-24 쓰리엠 이노베이티브 프로퍼티즈 컴파니 파지 특징부 표시부를 갖는 안면부 여과식 호흡기
US8528560B2 (en) 2009-10-23 2013-09-10 3M Innovative Properties Company Filtering face-piece respirator having parallel line weld pattern in mask body
SE0901460A1 (sv) * 2009-11-17 2011-05-18 Fogless Internat Ab Andnings-talventil
US8365771B2 (en) 2009-12-16 2013-02-05 3M Innovative Properties Company Unidirectional valves and filtering face masks comprising unidirectional valves
BR112012016094A2 (pt) 2009-12-30 2016-08-16 3M Innovative Properties Co respirador com peça facial filtrante tendo uma malha auxética no corpo da máscara
JP5212432B2 (ja) * 2010-07-16 2013-06-19 株式会社デンソー リードバルブ
US20120017911A1 (en) 2010-07-26 2012-01-26 3M Innovative Properties Company Filtering face-piece respirator having foam shaping layer
EP2436425B1 (de) 2010-10-01 2014-05-07 Moldex-Metric AG & Co. KG Rückschlagventil, Atemfiltermaske
US11116998B2 (en) 2012-12-27 2021-09-14 3M Innovative Properties Company Filtering face-piece respirator having folded flange
US10182603B2 (en) 2012-12-27 2019-01-22 3M Innovative Properties Company Filtering face-piece respirator having strap-activated folded flange
US20140182600A1 (en) 2012-12-27 2014-07-03 3M Innovative Properties Company Filtering face-piece respirator having welded indicia hidden in pleat
TWI630012B (zh) * 2013-01-29 2018-07-21 林淨植 單向閥及具單向閥之呼吸器
US9950202B2 (en) 2013-02-01 2018-04-24 3M Innovative Properties Company Respirator negative pressure fit check devices and methods
US11052268B2 (en) 2013-02-01 2021-07-06 3M Innovative Properties Company Respirator negative pressure fit check devices and methods
US9517367B2 (en) 2013-02-01 2016-12-13 3M Innovative Properties Company Respiratory mask having a clean air inlet chamber
USD746974S1 (en) 2013-07-15 2016-01-05 3M Innovative Properties Company Exhalation valve flap
JP6745216B2 (ja) 2013-07-15 2020-08-26 スリーエム イノベイティブ プロパティズ カンパニー 光学活性呼気弁を有する呼吸マスク
RU2650478C1 (ru) 2013-11-15 2018-04-13 3М Инновейтив Пропертиз Компани Респиратор с некруглым клапаном выдоха, установленным в центре масс
US10653901B2 (en) 2014-02-27 2020-05-19 3M Innovative Properties Company Respirator having elastic straps having openwork structure
US10344753B2 (en) 2014-02-28 2019-07-09 Encite Llc Micro pump systems
US10040621B2 (en) 2014-03-20 2018-08-07 3M Innovative Properties Company Filtering face-piece respirator dispenser
EP3888729A1 (de) 2014-05-19 2021-10-06 Fisher & Paykel Healthcare Limited Druckgesteuerte auslassentlüftung
SG11201701257PA (en) 2014-08-18 2017-03-30 3M Innovative Properties Co Respirator including polymeric netting and method of forming same
US11554471B2 (en) * 2014-08-28 2023-01-17 Power Tech Staple and Nail, Inc. Elastomeric exhaust reed valve for combustion driven fastener hand tool
US10330095B2 (en) 2014-10-31 2019-06-25 Encite Llc Microelectromechanical systems fabricated with roll to roll processing
GB201421618D0 (en) * 2014-12-04 2015-01-21 3M Innovative Properties Co Respirator valve
GB201508114D0 (en) 2015-05-12 2015-06-24 3M Innovative Properties Co Respirator tab
RU2015141569A (ru) 2015-09-30 2017-04-05 3М Инновейтив Пропертиз Компани Складной респиратор с лицевой маской и клапаном выдоха
WO2017066284A1 (en) 2015-10-12 2017-04-20 3M Innovative Properties Company Filtering face-piece respirator including functional material and method of forming same
BR112018009661A2 (pt) 2015-11-11 2018-11-13 3M Innovative Properties Co respirador de dobra plana com retenção de formato
EP3436161A4 (de) 2016-03-28 2020-01-22 3M Innovative Properties Company Aufhängungsbefestigungselement für kopfbedeckung
US11219787B2 (en) 2016-03-28 2022-01-11 3M Innovative Properties Company Respirator fit check sealing devices and methods
WO2017172361A1 (en) 2016-03-28 2017-10-05 3M Innovative Properties Company Multiple chamber respirator sealing devices and methods
USD816209S1 (en) 2016-03-28 2018-04-24 3M Innovative Properties Company Respirator inlet port connection seal
USD842982S1 (en) 2016-03-28 2019-03-12 3M Innovative Properties Company Hardhat suspension adapter for half facepiece respirators
USD827810S1 (en) 2016-03-28 2018-09-04 3M Innovative Properties Company Hardhat suspension adapter for half facepiece respirators
TWM525758U (zh) * 2016-04-06 2016-07-21 Mao Teng Jia Technology Co Ltd 具管道緩衝區段之口罩排氣結構
DE102016206775A1 (de) * 2016-04-21 2017-10-26 Uvex Arbeitsschutz Gmbh Atemschutzmaske
CN110088586B (zh) 2016-08-05 2021-11-05 斯蒂芬.A.马什 微压力传感器
USD842983S1 (en) 2016-09-16 2019-03-12 3M Innovative Properties Company Valve cover
CA3036977A1 (en) 2016-09-16 2018-03-22 3M Innovative Properties Company Exhalation valve and respirator including same
USD843562S1 (en) 2016-09-16 2019-03-19 3M Innovative Properties Company Valve cover with diamond pattern
USD828546S1 (en) 2016-09-16 2018-09-11 3M Innovative Properties Company Valve cover with openings
USD827811S1 (en) 2016-09-16 2018-09-04 3M Innovative Properties Company Valve cover
USD827812S1 (en) 2016-09-16 2018-09-04 3M Innovative Properties Company Valve cover with openings
USD900306S1 (en) 2016-09-16 2020-10-27 3M Innovative Properties Company Valve cover
USD882758S1 (en) 2016-09-16 2020-04-28 3M Innovative Properties Company Valve cover
USD849245S1 (en) 2016-09-16 2019-05-21 3M Innovative Properties Company Valve cover
WO2018081227A1 (en) 2016-10-28 2018-05-03 3M Innovative Properties Company Respirator including reinforcing element
CN106377853A (zh) * 2016-12-05 2017-02-08 马斐 直接呼出阀和直接呼出阀式口罩
US11092150B2 (en) 2017-03-13 2021-08-17 Encite Llc Micro pump systems and processing techniques
CN110869110B (zh) 2017-07-14 2022-11-18 3M创新有限公司 用于输送多个液体流的适配器
US10739170B2 (en) 2017-08-04 2020-08-11 Encite Llc Micro flow measurement devices and devices with movable features
US11046575B2 (en) * 2017-10-31 2021-06-29 Encite Llc Broad range micro pressure sensor
US11331618B2 (en) 2018-03-07 2022-05-17 Encite Llc R2R microelectromechanical gas concentrator
US11219729B2 (en) 2018-03-21 2022-01-11 Hansa Medical Products, Inc. Medical device system and method including an endotracheal tube
US11245344B2 (en) 2018-06-07 2022-02-08 Encite Llc Micro electrostatic motor and micro mechanical force transfer devices

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR791607A (fr) * 1934-06-28 1935-12-14 Degea Ag Soupape d'expiration pour appareils protecteurs
US2120231A (en) 1935-12-26 1938-06-14 Harvey S Cover Respirator
US2216619A (en) 1937-04-01 1940-10-01 American Optical Corp Respirator
US2320770A (en) 1940-12-20 1943-06-01 Harvey S Cover Respirator
US2864394A (en) * 1954-05-27 1958-12-16 Mcdowell Mfg Co Automatic relief valve
US2874093A (en) 1954-12-08 1959-02-17 Exxon Research Engineering Co Combination fluidized solids process for producing fuels and chemicals
US2895472A (en) 1956-01-05 1959-07-21 Electric Storage Battery Co Respirator
US2999498A (en) * 1957-05-07 1961-09-12 Electric Storage Battery Co Respirator
US2893387A (en) 1958-04-23 1959-07-07 Electric Storage Battery Co Respirator
US3191618A (en) * 1962-10-29 1965-06-29 Carrol D Mckim Curved seat reed valve
US3568712A (en) * 1969-04-01 1971-03-09 Gen Electric Suction valve for rotary compressor
GB2072516A (en) 1980-03-31 1981-10-07 Siebe Gorman & Co Ltd Improvements in and relating to respiratory face masks
US4414973A (en) 1981-03-10 1983-11-15 U.S.D. Corp. Respirator face mask
CA1164766A (en) 1981-06-25 1984-04-03 Gideon C. Silverthorn Universal canister mount
US4456016A (en) * 1982-07-01 1984-06-26 Trutek Research, Inc. Inhalation valve
US4631376A (en) 1984-09-28 1986-12-23 Westinghouse Electric Corp. Molded case circuit breaker with an improved arc gas external venting system
GB8428640D0 (en) 1984-11-13 1984-12-19 Avon Ind Polymers Valve for respirator
US4759758A (en) 1984-12-07 1988-07-26 Shlomo Gabbay Prosthetic heart valve
US4888009A (en) 1985-04-05 1989-12-19 Abiomed, Inc. Prosthetic heart valve
US4630604A (en) 1985-04-09 1986-12-23 Siebe North, Inc. Valve assembly for a replaceable filter respirator
SE455763B (sv) * 1986-07-03 1988-08-08 Horda Gummifabrik Ab Ventilanordning serskilt som ut- och/eller inandningsventil vid skyddsmasker
EP0266456A1 (de) * 1986-11-06 1988-05-11 Moldex-Metric AG & Co.KG Filtrierende Halbmaske
US4749003A (en) 1987-01-22 1988-06-07 Filtertek, Inc. Center flow check valve
US4934362A (en) 1987-03-26 1990-06-19 Minnesota Mining And Manufacturing Company Unidirectional fluid valve
US4972765A (en) 1987-12-03 1990-11-27 Dixon Alfred R Door vent
US4873972A (en) 1988-02-04 1989-10-17 Moldex/Metric Products, Inc. Disposable filter respirator with inner molded face flange
US4838262A (en) 1988-05-02 1989-06-13 Mine Safety Appliances Company Exhalation valve
US5036806A (en) * 1990-01-16 1991-08-06 Performance Industries, Inc. Reed valves for internal combustion engines
US4981134A (en) * 1990-01-16 1991-01-01 Courtney Darryl W Filtering face mask with inhalation/exhalation check valves
DE4029939A1 (de) 1990-09-21 1992-03-26 Am Produkte Gmbh Ventil fuer staubschutzmasken
JP2703688B2 (ja) * 1991-12-11 1998-01-26 三菱電機株式会社 スクロール圧縮機の吐出弁装置
US5255687A (en) * 1992-01-21 1993-10-26 Mckenna Charles L Zero dead space respiratory exercise valve
AU665082B2 (en) 1992-05-29 1995-12-14 Minnesota Mining And Manufacturing Company Unidirectional fluid valve
US5325892A (en) * 1992-05-29 1994-07-05 Minnesota Mining And Manufacturing Company Unidirectional fluid valve

Also Published As

Publication number Publication date
AU709637B2 (en) 1999-09-02
GB9515986D0 (en) 1995-10-04
USRE37974E1 (en) 2003-02-04
DE69633804T2 (de) 2005-11-03
ES2230223T3 (es) 2005-05-01
AU6079196A (en) 1997-02-06
US5687767A (en) 1997-11-18
EP0756881A3 (de) 1998-03-11
CA2181878C (en) 2003-01-14
EP1203599A3 (de) 2003-02-12
ES2171617T3 (es) 2002-09-16
DE69633804D1 (de) 2004-12-09
HK1013433A1 (en) 1999-08-27
EP1203599A2 (de) 2002-05-08
EP0756881A2 (de) 1997-02-05
EP1203599B1 (de) 2004-11-03
DE69620074T2 (de) 2002-08-01
CA2181878A1 (en) 1997-02-05
EP0756881B1 (de) 2002-03-27

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