EP0196953B1 - Atemmaske und Verfahren zu deren Herstellung - Google Patents

Atemmaske und Verfahren zu deren Herstellung Download PDF

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Publication number
EP0196953B1
EP0196953B1 EP86400535A EP86400535A EP0196953B1 EP 0196953 B1 EP0196953 B1 EP 0196953B1 EP 86400535 A EP86400535 A EP 86400535A EP 86400535 A EP86400535 A EP 86400535A EP 0196953 B1 EP0196953 B1 EP 0196953B1
Authority
EP
European Patent Office
Prior art keywords
cells
sheet
holes
those
treated
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
Application number
EP86400535A
Other languages
English (en)
French (fr)
Other versions
EP0196953A1 (de
Inventor
Louis Giffard
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.)
L Giffard Sa SA
Original Assignee
L Giffard Sa SA
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 L Giffard Sa SA filed Critical L Giffard Sa SA
Publication of EP0196953A1 publication Critical patent/EP0196953A1/de
Application granted granted Critical
Publication of EP0196953B1 publication Critical patent/EP0196953B1/de
Expired legal-status Critical Current

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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
    • A41D13/1138—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a cup configuration
    • A41D13/1146—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a cup configuration obtained by moulding
    • 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
    • A62B23/00—Filters for breathing-protection purposes
    • A62B23/02—Filters for breathing-protection purposes for respirators
    • A62B23/025—Filters for breathing-protection purposes for respirators the filter having substantially the shape of a mask
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D2300/00—Details of garments
    • A41D2300/30—Closures
    • A41D2300/32—Closures using hook and loop-type fasteners

Definitions

  • the invention relates to a new disposable respiratory mask, the filter element of which consists of a granular material, for example granular activated carbon.
  • FR-A-2 414 941 describes a disposable respiratory mask comprising a shell made of heat-shrinkable materials comprising an outer ply having a plurality of cells projecting from its anterior face of said outer ply and occupying almost all of its surface, each of said cells defining an enclosure containing a grainy filter material, in particular activated carbon, highly compressed, said cells being closed by an inner ply applied to the outer ply during a thermal welding operation, such a mask has the drawback that air crossing the mask with a tendency to pass through the areas where the pressure drop is the lowest, that is to say around the cells in the areas where the two plies are directly in contact as well as at the base alveoli on the periphery thereof so that the air passing through the mask has little or no contact with the granular material. The filtration effect is therefore weak.
  • the present invention proposes to provide a mask having an improved filtration effect as a result of a channeling of the air entering the mass of the granular filtering material contained in each cell.
  • the mask is in the form of a shell C, the periphery of which closely follows the facies of the user by means of a flange made of two elements B1-B2 assembled behind the neck. thanks to two complementary elements V1-V2 formed by a hook-and-loop tape like the one sold under the brand VELCRO.
  • this shell C is provided with a plurality of cells A1-A6 projecting from its anterior face, each cell being truncated pyramid. or tapered.
  • these cells are arranged radiating in the direction of the most anterior part of the snout - either that they meet at this point, or that they end in a circular alveolus or even in a central valve S of the outlet of the expired air.
  • Each cell is filled with grain filtering material (activated carbon for example) compressed by heat shrinking the material constituting the shell C.
  • grain filtering material activated carbon for example
  • this shell C consists of a chamber initially made of three flat sheets: an outer sheet C1 made of nonwoven of retractable fibers such as polyvinyl fibers permeable to the fluid to be treated, an intermediate plate P made of a semi-rigid PVC film impermeable to the fluid to be treated and an inner web C2 of food-grade anti-allergic polyvinyl permeable to the fluid to be treated.
  • the outer ply C1 is preformed with cells (Al -A6) as has just been said.
  • the intermediate plate P is cut out of holes T1 to T6 (possibly T7) corresponding to the shape, number and arrangement of the cells of the sheet C1, however, the dimensions of these holes are smaller than those of the corresponding cells for reasons which will be explained more far.
  • the sheet C2 is not pierced.
  • the C1 sheet being placed flat, cells below, it is completely filled with activated carbon (or any similar filter material); the intermediate plate P is placed above, making its holes coincide with the cells then the sheet C2; a flat weld is carried out to close the cells.
  • activated carbon or any similar filter material
  • the air entering this zone is diverted towards the activated carbon before being able to reach the interior of the mask.
  • the central cell can be replaced by an exhalation valve 3 which is then assembled in a conventional manner.

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)
  • Respiratory Apparatuses And Protective Means (AREA)

Claims (2)

1. Wegwerfbare Atemmaske mit einer aus einem wärmeschrumpfenden Material gebildeten Muschel (C), die ein die zu bearbeitende Flüssigkeit durchlassendes äusseres Vlies (C1) aufweist, in dem eine Mehrzahl von aus der Vorderseite des äusseren Vlieses vorspringenden und nahezu dessen gesamte Oberfläche bedeckenden Zellen (A1-A6) ausgebildet sind, wobei jede der Zellen eine Einfassung definiert, die ein darin stark zusammengedrücktes, filtrierendes, körniges Material, insbesondere Aktivkohle, enthält und wobei die Zellen während einer Verschweiss-Wärmebehandlung von einem die zu bearbeitende Flüssigkeit durchlassenden inneren Vlies (C2), das auf das äussere Vlies gegeben wird, verschlossen werden, dadurch gekennzeichnet, dass sie eine für die zu bearbeitende Flüssigkeit undurchlässige, halbstarre Zwischenschicht (P) aufweist, die zwischen den äusseren (C1) und inneren (C2) Vliesen angeordnet und mit Öffnungen (T1-T6), die in Gestalt und Anordnung denjenigen der Zellen (A1-A6) entsprechen, versehen ist, wobei die Öffnungen (T1-T6) kleinere Abmessungen besitzen als die Grundfläche der entsprechenden Zellen, um die eintretende Luft in Richtung des körnigen Materials abzulenken.
2. Verfahren zur Herstellung einer Atemmaske gemäss Anspruch 1, dadurch gekennzeichnet, dass
- mittels Vorformung auf einem Vlies (C1) aus wärmeschrumpfenden Material Zellen (A1-A6) ausgebildet werden;
- aus einer halbstarren Zwischenplatte (P) Öffnungen (T1-T6) ausgestanzt werden, deren Form und Anordnung denen der Zellen (A1-A2) entspricht, wobei jede der Öffnungen Abmessungen aufweist, die kleiner sind als diejenigen der Grundfläche der entsprechenden Zelle;
- die Zellen (A1-A6) vollständig mit einem filtrierenden, körnigen Material gefüllt werden;
- die Zwischenschicht (P) so auf das Vlies (C1) gelegt wird, dass die Öffnungen (T1-T6) mit den Zellen (A1-A6) zur Übereinstimmung kommen;
- auf dem Vlies (C1) ein inneres Vlies (C2) so angeordnet wird, dass dieses die Zellen abdeckt;
- an den Vliesen eine Heiss- und Flachschweissbehandlung vorgenommen wird, um die Zellen zu schliessen und gleichzeitig die Vliesse mittels Schrumpfung zu verformen;
- an den oberen und unteren Enden zwei Dreiecke ausgestanzt werden, um das Zusammenfalten zu erleichtern; und
- die Ausstanzungen verschweisst werden, um die Maskengestalt auszubilden.
EP86400535A 1985-03-13 1986-03-13 Atemmaske und Verfahren zu deren Herstellung Expired EP0196953B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8503647 1985-03-13
FR8503647A FR2578748B1 (fr) 1985-03-13 1985-03-13 Masque respiratoire et son procede de fabrication

Publications (2)

Publication Number Publication Date
EP0196953A1 EP0196953A1 (de) 1986-10-08
EP0196953B1 true EP0196953B1 (de) 1989-10-18

Family

ID=9317130

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86400535A Expired EP0196953B1 (de) 1985-03-13 1986-03-13 Atemmaske und Verfahren zu deren Herstellung

Country Status (5)

Country Link
US (1) US4723542A (de)
EP (1) EP0196953B1 (de)
DE (1) DE3666352D1 (de)
FR (1) FR2578748B1 (de)
IE (1) IE57316B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD746439S1 (en) 2013-12-30 2015-12-29 Kimberly-Clark Worldwide, Inc. Combination valve and buckle set for disposable respirators
US9642403B2 (en) 2007-08-16 2017-05-09 Kimberly-Clark Worldwide, Inc. Strap fastening system for a disposable respirator providing improved donning
CN108404310A (zh) * 2018-02-06 2018-08-17 常州大学 一种温和型鳃式净化呼吸器

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD310431S (en) 1987-01-30 1990-09-04 Lifeline Limited Gas delivery mask
US5325892A (en) 1992-05-29 1994-07-05 Minnesota Mining And Manufacturing Company Unidirectional fluid valve
CA2134764C (en) * 1992-05-29 1999-04-27 Daniel A. Japuntich Unidirectional fluid valve
DE19548180C1 (de) * 1995-12-22 1997-07-17 Mann & Hummel Filter Filteranordnung
US5697105A (en) * 1996-09-04 1997-12-16 White; Mark Hunting mask
US20100224199A1 (en) * 2006-05-01 2010-09-09 Kimberly-Clark Worldwide, Inc. Respirator
US20070251522A1 (en) * 2006-05-01 2007-11-01 Welchel Debra N Respirator with exhalation vents
US20090044811A1 (en) * 2007-08-16 2009-02-19 Kimberly-Clark Worldwide, Inc. Vent and strap fastening system for a disposable respirator providing improved donning
US20090044809A1 (en) * 2007-08-16 2009-02-19 Kimberly-Clark Worldwide, Inc. Vent and strap fastening system for a disposable respirator
USD657052S1 (en) * 2009-09-22 2012-04-03 World Wide Welding, Inc. Dust mask
USD657053S1 (en) * 2009-09-22 2012-04-03 World Wide Welding, Inc. Dust mask
US9027554B2 (en) * 2011-12-06 2015-05-12 3M Innovative Properties Company Respirator having foam shaping layer with recessed regions surrounding air passageways
USD757249S1 (en) * 2015-01-13 2016-05-24 Lu Xu Respirator mask
CN105641821A (zh) * 2016-03-03 2016-06-08 北京尚宏恒远科技有限公司 一种主动进气式口罩
CN105617559A (zh) * 2016-04-01 2016-06-01 朱赛花 内置活性炭过滤装置的口罩
WO2018094472A1 (en) * 2016-11-28 2018-05-31 Clean Stream Technologies Respirator mask
US20210113863A1 (en) * 2019-10-21 2021-04-22 Airgle Corporation Nasal mask
WO2021078415A1 (en) * 2020-04-14 2021-04-29 Mann+Hummel Water Solutions Holding Pte. Ltd. Respiratory protection face mask shell, respiratory protection face mask, filter inlay, and method of manufacturing
CN111480929A (zh) * 2020-04-20 2020-08-04 昆山君元包装制品有限公司 一种吸塑工艺面罩式口罩的生产工艺
USD952132S1 (en) * 2020-10-01 2022-05-17 American Biomedical Group Inc. Facemask
USD952133S1 (en) * 2020-11-17 2022-05-17 American Biomedical Group Inc. Facemask body
US20220296941A1 (en) * 2021-03-19 2022-09-22 Brian Greene Firefighter Respirator Mask Device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2158629A5 (de) * 1971-10-26 1973-06-15 Giffard L
FR2414941A1 (fr) * 1977-11-24 1979-08-17 Giffard L Element filtrant a masse filtrante pulverulente ou granulee

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2798483A (en) * 1957-07-09 Hideo kashima
US2120230A (en) * 1933-08-10 1938-06-14 Harvey S Cover Respirator
US3633575A (en) * 1970-03-20 1972-01-11 Us Army Folded lightweight mask
FR2430774A1 (fr) * 1978-07-13 1980-02-08 Giffard L Masque respiratoire
GB2077112B (en) * 1980-06-09 1985-03-13 Metric Prod Inc Face mask
JPS5825175A (ja) * 1981-08-07 1983-02-15 揚　文羊 防煙防毒マスク
US4600002A (en) * 1984-10-24 1986-07-15 American Optical Corporation Disposable respirator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2158629A5 (de) * 1971-10-26 1973-06-15 Giffard L
FR2414941A1 (fr) * 1977-11-24 1979-08-17 Giffard L Element filtrant a masse filtrante pulverulente ou granulee

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9642403B2 (en) 2007-08-16 2017-05-09 Kimberly-Clark Worldwide, Inc. Strap fastening system for a disposable respirator providing improved donning
USD746439S1 (en) 2013-12-30 2015-12-29 Kimberly-Clark Worldwide, Inc. Combination valve and buckle set for disposable respirators
CN108404310A (zh) * 2018-02-06 2018-08-17 常州大学 一种温和型鳃式净化呼吸器

Also Published As

Publication number Publication date
IE57316B1 (en) 1992-07-15
IE860649L (en) 1986-09-13
DE3666352D1 (en) 1989-11-23
US4723542A (en) 1988-02-09
FR2578748B1 (fr) 1987-03-20
EP0196953A1 (de) 1986-10-08
FR2578748A1 (fr) 1986-09-19

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