CN107048530A - 具有对称标记的水平平折过滤式面罩呼吸器 - Google Patents

具有对称标记的水平平折过滤式面罩呼吸器 Download PDF

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Publication number
CN107048530A
CN107048530A CN201710056235.6A CN201710056235A CN107048530A CN 107048530 A CN107048530 A CN 107048530A CN 201710056235 A CN201710056235 A CN 201710056235A CN 107048530 A CN107048530 A CN 107048530A
Authority
CN
China
Prior art keywords
mask body
nose clip
flat
filtering face
mask
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.)
Pending
Application number
CN201710056235.6A
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English (en)
Chinese (zh)
Inventor
迪安·R·达菲
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
3M Innovative Properties 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
Application filed by 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Publication of CN107048530A publication Critical patent/CN107048530A/zh
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A41D13/1107—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape
    • A41D13/1115—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a horizontal pleated pocket
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A41D13/1161—Means for fastening to the user's head
    • 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
    • A62B18/02—Masks
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B23/00—Filters for breathing-protection purposes
    • A62B23/02—Filters for breathing-protection purposes for respirators
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B9/00—Component parts for respiratory or breathing apparatus
    • A62B9/06—Mouthpieces; Nose-clips

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Pulmonology (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Zoology (AREA)
CN201710056235.6A 2009-09-18 2010-09-20 具有对称标记的水平平折过滤式面罩呼吸器 Pending CN107048530A (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12/562,253 2009-09-18
US12/562,253 US8881729B2 (en) 2009-09-18 2009-09-18 Horizontal flat-fold filtering face-piece respirator having indicia of symmetry
CN2010102904799A CN102018300A (zh) 2009-09-18 2010-09-20 具有对称标记的水平平折过滤式面罩呼吸器

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN2010102904799A Division CN102018300A (zh) 2009-09-18 2010-09-20 具有对称标记的水平平折过滤式面罩呼吸器

Publications (1)

Publication Number Publication Date
CN107048530A true CN107048530A (zh) 2017-08-18

Family

ID=43086839

Family Applications (2)

Application Number Title Priority Date Filing Date
CN201710056235.6A Pending CN107048530A (zh) 2009-09-18 2010-09-20 具有对称标记的水平平折过滤式面罩呼吸器
CN2010102904799A Pending CN102018300A (zh) 2009-09-18 2010-09-20 具有对称标记的水平平折过滤式面罩呼吸器

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN2010102904799A Pending CN102018300A (zh) 2009-09-18 2010-09-20 具有对称标记的水平平折过滤式面罩呼吸器

Country Status (8)

Country Link
US (2) US8881729B2 (enExample)
EP (1) EP2298095A2 (enExample)
JP (1) JP2011062521A (enExample)
KR (1) KR20110031126A (enExample)
CN (2) CN107048530A (enExample)
AU (1) AU2010219428A1 (enExample)
MX (1) MX2010010250A (enExample)
RU (1) RU2443442C1 (enExample)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8881729B2 (en) 2009-09-18 2014-11-11 3M Innovative Properties Company Horizontal flat-fold filtering face-piece respirator having indicia of symmetry
US20140182600A1 (en) * 2012-12-27 2014-07-03 3M Innovative Properties Company Filtering face-piece respirator having welded indicia hidden in pleat
US9603396B2 (en) * 2013-08-29 2017-03-28 3M Innovative Properties Company Filtering face-piece respirator having nose notch
US9868002B2 (en) 2014-07-17 2018-01-16 3M Innovative Properties Company Respirator including contrast layer
CN106573158B (zh) * 2014-08-18 2022-06-28 3M创新有限公司 包括聚合物结网的呼吸器及其形成方法
WO2016033226A1 (en) 2014-08-26 2016-03-03 Curt G. Joa, Inc. Apparatus and methods for securing elastic to a carrier web
US10357069B2 (en) * 2016-06-20 2019-07-23 Ronald Tuan Gauze mask with folding lines capable of enabling the gauze mask to be folded into a flat package or unfolded into a three dimensional configuration
US10039333B2 (en) * 2017-08-18 2018-08-07 Shane Brian Hamilton Protective gear
EP3746021B1 (en) 2018-01-29 2024-01-31 Curt G. Joa, Inc. Apparatus and method of manufacturing an elastic composite structure for an absorbent sanitary product
EP3945912B1 (en) * 2018-04-05 2024-08-28 S Star Technologies LLC Personal protective mask
US11925538B2 (en) 2019-01-07 2024-03-12 Curt G. Joa, Inc. Apparatus and method of manufacturing an elastic composite structure for an absorbent sanitary product
US12433797B2 (en) 2019-09-04 2025-10-07 Curt G. Joa, Inc. Elastic entrapment with waist cap bonding
US11173072B2 (en) 2019-09-05 2021-11-16 Curt G. Joa, Inc. Curved elastic with entrapment
MX2022010076A (es) 2020-02-17 2022-09-02 Joa Curt G Inc Estructura compuesta elastica para un producto sanitario absorbente, y aparato y metodo para fabricar la estructura compuesta elastica.
US11766079B2 (en) 2020-03-30 2023-09-26 Under Armour, Inc. Face mask and method of making the same
US10966473B1 (en) * 2020-05-05 2021-04-06 Tri-State Media, Llc Face mask and liner assembly, system, and methods
US11284654B2 (en) 2020-06-10 2022-03-29 Under Armour, Inc. Breathable face mask
US12186647B2 (en) 2020-08-24 2025-01-07 Under Armour, Inc. Face guard
US20220143349A1 (en) * 2020-11-06 2022-05-12 Wade Lamont Yoder Respiratory mask
US11064745B1 (en) * 2020-11-12 2021-07-20 United Arab Emirates University Face mask with separate inhaling and exhaling portions
KR102648765B1 (ko) * 2021-04-23 2024-03-19 (주)피앤티디 제트폴드타입 접이식 마스크 및 그 제조방법
US12433355B2 (en) * 2021-09-27 2025-10-07 Erica Benton Complete face shield
KR102752013B1 (ko) * 2022-05-30 2025-01-14 주식회사 크리넷 폴딩 마스크 및 그 제조방법

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5827567A (ja) * 1981-08-12 1983-02-18 アメリカン・オプテイカル・コ−ポレ−シヨン 使捨型呼吸マスクとその製法
JPS6384253U (enExample) * 1986-11-20 1988-06-02
US6123077A (en) * 1995-03-09 2000-09-26 3M Innovative Properties Company Flat-folded personal respiratory protection devices and processes for preparing same
CN1107467C (zh) * 1994-10-13 2003-05-07 美国3M公司 口罩鼻夹
JP3094413U (ja) * 2002-12-02 2003-06-20 スルガ株式会社 マスク
JP2007021027A (ja) * 2005-07-20 2007-02-01 Daio Paper Corp マスク
JP2007135801A (ja) * 2005-11-17 2007-06-07 Hakujuji Co Ltd 立体型マスク
CN101272827A (zh) * 2005-09-27 2008-09-24 3M创新有限公司 使用聚合物鼻夹的呼吸器
JP2008279101A (ja) * 2007-05-11 2008-11-20 Masaru Imaizumi マスク
CN101385577A (zh) * 2008-10-27 2009-03-18 朱惠芬 一次性防尘口罩
US20090205666A1 (en) * 2008-02-19 2009-08-20 Bowen Michael L Directional Flat Face Mask
CN101594911A (zh) * 2006-11-03 2009-12-02 普里迈德医药产品有限公司 气体过滤软面罩

Family Cites Families (76)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3603315A (en) * 1969-10-17 1971-09-07 American Hospital Supply Corp Surgical face mask
US3971373A (en) 1974-01-21 1976-07-27 Minnesota Mining And Manufacturing Company Particle-loaded microfiber sheet product and respirators made therefrom
US3971369A (en) * 1975-06-23 1976-07-27 Johnson & Johnson Folded cup-like surgical face mask and method of forming the same
US4013816A (en) 1975-11-20 1977-03-22 Draper Products, Inc. Stretchable spun-bonded polyolefin web
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
US4312338A (en) 1980-01-21 1982-01-26 Glassman Jacob A Surgical mask
US4850347A (en) 1980-06-09 1989-07-25 Metric Products, Inc. Face mask
AU565762B2 (en) 1983-02-04 1987-09-24 Minnesota Mining And Manufacturing Company Method and apparatus for manufacturing an electret filter medium
USD285374S (en) 1983-11-21 1986-08-26 Moldex/Metric Products, Inc. Face mask
US4536440A (en) 1984-03-27 1985-08-20 Minnesota Mining And Manufacturing Company Molded fibrous filtration products
US5237986A (en) 1984-09-13 1993-08-24 Minnesota Mining And Manufacturing Company Respirator harness assembly
US4600002A (en) 1984-10-24 1986-07-15 American Optical Corporation Disposable respirator
US4606341A (en) 1985-09-23 1986-08-19 Tecnol, Inc. Noncollapsible surgical face mask
US4807619A (en) 1986-04-07 1989-02-28 Minnesota Mining And Manufacturing Company Resilient shape-retaining fibrous filtration face mask
GB8612070D0 (en) 1986-05-19 1986-06-25 Brown R C Blended-fibre filter material
CA1296487C (en) 1986-09-26 1992-03-03 Sabrina M. Yard Perimeter seal for disposable respirators
GB2198411B (en) * 1986-12-02 1990-04-18 Instance Ltd David J Labels and manufacture thereof
US4790306A (en) 1987-09-25 1988-12-13 Minnesota Mining And Manufacturing Company Respiratory mask having a rigid or semi-rigid, insert-molded filtration element and method of making
JPH0169899U (enExample) 1987-10-29 1989-05-09
US4825878A (en) * 1987-12-28 1989-05-02 Kuntz David H Light-weight disposable protective face shield
JP3094413B2 (ja) 1989-09-06 2000-10-03 富士ゼロックス株式会社 画像処理装置
US5307796A (en) 1990-12-20 1994-05-03 Minnesota Mining And Manufacturing Company Methods of forming fibrous filtration face masks
RU2068284C1 (ru) 1992-04-29 1996-10-27 Серебрянский завод неорганических производств Противопылевой респиратор
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
CA2134764C (en) 1992-05-29 1999-04-27 Daniel A. Japuntich Unidirectional fluid valve
US5753343A (en) 1992-08-04 1998-05-19 Minnesota Mining And Manufacturing Company Corrugated nonwoven webs of polymeric microfiber
PL173854B1 (pl) 1993-08-17 1998-05-29 Minnesota Mining & Mfg Sposób wytwarzania elektretowego środka filtracyjnego
JP2825758B2 (ja) * 1994-06-03 1998-11-18 クリンテック株式会社 鼻部保温マスク
USD412573S (en) 1994-10-14 1999-08-03 3M Innovative Properties Company Nose clip for a filtering face mask
US5579761A (en) 1995-01-20 1996-12-03 Minnesota Mining And Manufacturing Company Respirator having snap-fit filter cartridge
AU2095895A (en) 1995-03-09 1996-10-02 Minnesota Mining And Manufacturing Company Fold flat respirators and processes for preparing same
US6568392B1 (en) 1995-09-11 2003-05-27 3M Innovative Properties Company Flat-folded personal respiratory protection devices and processes for preparing same
US5706803A (en) * 1995-06-06 1998-01-13 Bayer; Robert T. Disposable face mask and method of manufacture
GB9515986D0 (en) 1995-08-04 1995-10-04 Racal Health & Safety Ltd Uni-directional fluid valve
US5908598A (en) 1995-08-14 1999-06-01 Minnesota Mining And Manufacturing Company Fibrous webs having enhanced electret properties
US5617849A (en) * 1995-09-12 1997-04-08 Minnesota Mining And Manufacturing Company Respirator having thermochromic fit-indicating seal
US5934275A (en) * 1995-09-15 1999-08-10 Splash Shield, Lp Mask with elastic webbing
US5813423A (en) 1995-11-01 1998-09-29 Kirchgeorg; John Inhalator and/or resuscitator mask adaptable for use with an adult and child
US5696199A (en) 1995-12-07 1997-12-09 Minnesota Mining And Manufacturing Company Pressure-sensitive adhesive polyacrylate polymer and method of making
US5803075A (en) 1996-03-15 1998-09-08 Yaru Llc Surgical mask with adhesive strip to improve breathing
US5673690A (en) * 1996-03-26 1997-10-07 Better Breathing, Inc. Breathing mask
US5701893A (en) 1996-05-20 1997-12-30 Survivair, Inc. Disposable face mask
USD620104S1 (en) 1996-11-25 2010-07-20 3M Innovative Properties Company Personal respiratory protection device
US6041782A (en) 1997-06-24 2000-03-28 3M Innovative Properties Company Respiratory mask having comfortable inner cover web
US6062221A (en) 1997-10-03 2000-05-16 3M Innovative Properties Company Drop-down face mask assembly
US6102039A (en) 1997-12-01 2000-08-15 3M Innovative Properties Company Molded respirator containing sorbent particles
US6230183B1 (en) 1998-03-11 2001-05-08 International Business Machines Corporation Method and apparatus for controlling the number of servers in a multisystem cluster
US6432175B1 (en) 1998-07-02 2002-08-13 3M Innovative Properties Company Fluorinated electret
US6139308A (en) 1998-10-28 2000-10-31 3M Innovative Properties Company Uniform meltblown fibrous web and methods and apparatus for manufacturing
US6394090B1 (en) 1999-02-17 2002-05-28 3M Innovative Properties Company Flat-folded personal respiratory protection devices and processes for preparing same
JP3327246B2 (ja) 1999-03-25 2002-09-24 富士ゼロックス株式会社 インクジェット記録ヘッド及びその製造方法
US6332465B1 (en) 1999-06-02 2001-12-25 3M Innovative Properties Company Face masks having an elastic and polyolefin thermoplastic band attached thereto by heat and pressure
US6412486B1 (en) * 1999-07-09 2002-07-02 Leonard W. Glass Disposable filtering face mask and method of making same
US6375886B1 (en) 1999-10-08 2002-04-23 3M Innovative Properties Company Method and apparatus for making a nonwoven fibrous electret web from free-fiber and polar liquid
US6454986B1 (en) 1999-10-08 2002-09-24 3M Innovative Properties Company Method of making a fibrous electret web using a nonaqueous polar liquid
US6406657B1 (en) 1999-10-08 2002-06-18 3M Innovative Properties Company Method and apparatus for making a fibrous electret web using a wetting liquid and an aqueous polar liquid
JP3295413B2 (ja) * 2000-01-21 2002-06-24 サンエム・パッケージ株式会社 マスク
US6743464B1 (en) 2000-04-13 2004-06-01 3M Innovative Properties Company Method of making electrets through vapor condensation
US6883518B2 (en) 2001-06-25 2005-04-26 3M Innovative Properties Company Unidirectional respirator valve
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
US6923182B2 (en) 2002-07-18 2005-08-02 3M Innovative Properties Company Crush resistant filtering face mask
CN2609585Y (zh) * 2003-05-15 2004-04-07 唐春芳 无缝隙口罩
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
EP1495785A1 (en) 2003-07-09 2005-01-12 Cheng-Yuan Chien Respirator mask
RU2289460C2 (ru) 2004-12-21 2006-12-20 Общество с ограниченной ответственностью Предприятие материально-технического обеспечения "Спецснаб" (ООО ПМТО "Спецснаб") Респиратор
FR2889916B1 (fr) 2005-08-26 2007-11-02 Maco Pharma Sa Masque de protection respiratoire comprenant un moyen d'inviolabilite
US20070175477A1 (en) 2005-12-23 2007-08-02 Baggett Richard W Personal protection, procedural and surgical mask
JP3121584U (ja) * 2006-03-02 2006-05-18 株式会社宇部兵間仏閣堂 衛生マスク
US20080099022A1 (en) * 2006-10-26 2008-05-01 3M Innovative Properties Company Respirator That Uses A Predefined Nose Foam Shape
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
US9770611B2 (en) * 2007-05-03 2017-09-26 3M Innovative Properties Company Maintenance-free anti-fog respirator
US8066006B2 (en) * 2007-10-09 2011-11-29 3M Innovative Properties Company Filtering face-piece respirator having nose clip molded into the mask body
US9012013B2 (en) 2008-12-18 2015-04-21 3M Innovative Properties Company Expandable face mask with reinforcing netting
US8881729B2 (en) 2009-09-18 2014-11-11 3M Innovative Properties Company Horizontal flat-fold filtering face-piece respirator having indicia of symmetry

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5827567A (ja) * 1981-08-12 1983-02-18 アメリカン・オプテイカル・コ−ポレ−シヨン 使捨型呼吸マスクとその製法
JPS6384253U (enExample) * 1986-11-20 1988-06-02
CN1107467C (zh) * 1994-10-13 2003-05-07 美国3M公司 口罩鼻夹
US6123077A (en) * 1995-03-09 2000-09-26 3M Innovative Properties Company Flat-folded personal respiratory protection devices and processes for preparing same
JP3094413U (ja) * 2002-12-02 2003-06-20 スルガ株式会社 マスク
JP2007021027A (ja) * 2005-07-20 2007-02-01 Daio Paper Corp マスク
CN101272827A (zh) * 2005-09-27 2008-09-24 3M创新有限公司 使用聚合物鼻夹的呼吸器
JP2007135801A (ja) * 2005-11-17 2007-06-07 Hakujuji Co Ltd 立体型マスク
CN101594911A (zh) * 2006-11-03 2009-12-02 普里迈德医药产品有限公司 气体过滤软面罩
JP2008279101A (ja) * 2007-05-11 2008-11-20 Masaru Imaizumi マスク
US20090205666A1 (en) * 2008-02-19 2009-08-20 Bowen Michael L Directional Flat Face Mask
CN101385577A (zh) * 2008-10-27 2009-03-18 朱惠芬 一次性防尘口罩

Also Published As

Publication number Publication date
EP2298095A2 (en) 2011-03-23
CN102018300A (zh) 2011-04-20
MX2010010250A (es) 2011-03-17
AU2010219428A1 (en) 2011-04-07
US8881729B2 (en) 2014-11-11
RU2443442C1 (ru) 2012-02-27
US20110067701A1 (en) 2011-03-24
US9826786B2 (en) 2017-11-28
JP2011062521A (ja) 2011-03-31
US20150020816A1 (en) 2015-01-22
KR20110031126A (ko) 2011-03-24

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WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20170818

WD01 Invention patent application deemed withdrawn after publication