EP1448271A1 - Masque de protection respiratoire pour appareil respiratoire a air comprime - Google Patents

Masque de protection respiratoire pour appareil respiratoire a air comprime

Info

Publication number
EP1448271A1
EP1448271A1 EP02772058A EP02772058A EP1448271A1 EP 1448271 A1 EP1448271 A1 EP 1448271A1 EP 02772058 A EP02772058 A EP 02772058A EP 02772058 A EP02772058 A EP 02772058A EP 1448271 A1 EP1448271 A1 EP 1448271A1
Authority
EP
European Patent Office
Prior art keywords
control membrane
air outlet
air
mask
membrane
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.)
Granted
Application number
EP02772058A
Other languages
German (de)
English (en)
Other versions
EP1448271B1 (fr
EP1448271B2 (fr
Inventor
Peter Kling
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.)
MSA Auer GmbH
Original Assignee
MSA Auer GmbH
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=7707806&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1448271(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by MSA Auer GmbH filed Critical MSA Auer GmbH
Publication of EP1448271A1 publication Critical patent/EP1448271A1/fr
Publication of EP1448271B1 publication Critical patent/EP1448271B1/fr
Application granted granted Critical
Publication of EP1448271B2 publication Critical patent/EP1448271B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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

Definitions

  • the invention relates to a breathing mask for compressed air breathing apparatus, with a regulator, which is controlled by a control membrane, and an exhalation valve with an air outlet.
  • Respiratory masks are usually operated in conjunction with a compressed air breathing apparatus with a regulator, which is connected to the mask body via a screw or plug connection.
  • the air supply from a pressure reducer is controlled via a medium pressure line via a control membrane which is actuated by breathing in the mask wearer and which acts via a mechanical connection on a control valve which releases the medium pressure line as required.
  • This understandably highly sensitive thin membrane made of an elastic material is extremely sensitive to the environmental influences caused by extreme temperatures and aggressive media.
  • the functionality of the membrane can be impaired, for example, by reducing elasticity at low temperatures and thereby negatively influencing breathing resistance and sensitivity, or penetrating, destroying or at least impairing its mechanical properties by aggressive gases such as hydrogen sulfide or phosgene becomes.
  • the invention is therefore based on the object of designing a breathing mask of the type mentioned at the outset such that the function of the control membrane is not impaired by temperature influences and aggressive media and a long service life is ensured.
  • the object is achieved with a respiratory mask according to the features of claim 1.
  • the basic idea of the invention consists in the arrangement of a cover cap which overlaps the air outlet of the exhalation valve and the control membrane and which has air outlet openings on the opposite side, that is to say from the air outlet.
  • a rinsing chamber or rinsing channel is created above the control membrane, in which uniformly tempered, clean exhaled air from the mask wearer flows from the air outlet of the respirator mask over the surface of the control membrane to the air outlet opening in the cover cap, thereby flushing away the aggressive gases and at the same time flushing the control membrane onto a constant one Temperature maintains or cools or warms according to the outside temperature. This ensures undisturbed functionality and a long service life for the control membrane.
  • the mask body 1 of a respiratory protection mask has a lung regulator 2 for supplying the breathing air provided by a compressed air reservoir via a pressure reducer and a medium pressure line 3 to the mask wearer.
  • the air supply is controlled according to the breathing rhythm via a control membrane 4 actuated by inhalation, which is connected via a lever system to a control valve (not shown) for releasing the medium pressure line 3 when inhaling.
  • Arrows A, B and C show along the dotted line the path of the inhaled air from the medium pressure line 3 via the chamber 5 and the air inlet 6 of the lung machine and along the mask disks 12 to the mask wearer, while the used air in the direction of arrows D, E and F passes through the exhalation valve 7 into the open.
  • the air exhaled by the mask wearer does not flow directly into the open air, but via an air outlet 8 into the flushing space 10 above the control membrane 4 which is delimited by a cover cap 9 , namely the exhaled air of the mask wearer, over the surface of the control membrane
  • control diaphragm 4 is therefore always evenly temperature-controlled and, as a result, its functionality is not restricted either by too high or too low outside temperatures. ⁇
  • the control diaphragm 4 is neither too stiff nor too soft, but maintains its predetermined mechanical properties.
  • the breathing conditions for the mask wearer thus remain optimal even under extreme conditions.
  • aggressive, toxic gases, such as hydrogen sulfide or phosgene which diffuse relatively quickly through the thin control membrane into the breathing air area and can damage the device wearer, are continuously flushed away from the control membrane 4 by the exhaled air, so that there is no impairment in this regard either the control membrane is to be feared, but a long life and purity of the breathing air is guaranteed.
  • the exhaled air (purging air) is released outside through air outlet openings 11 in the cover cap 9.

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
EP02772058A 2001-11-27 2002-09-10 Masque de protection respiratoire pour appareil respiratoire a air comprime Expired - Lifetime EP1448271B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10159219A DE10159219B4 (de) 2001-11-27 2001-11-27 Atemschutzmaske für einen Preßluftatmer
DE10159219 2001-11-27
PCT/DE2002/003420 WO2003047698A1 (fr) 2001-11-27 2002-09-10 Masque de protection respiratoire pour appareil respiratoire a air comprime

Publications (3)

Publication Number Publication Date
EP1448271A1 true EP1448271A1 (fr) 2004-08-25
EP1448271B1 EP1448271B1 (fr) 2006-03-01
EP1448271B2 EP1448271B2 (fr) 2009-10-07

Family

ID=7707806

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02772058A Expired - Lifetime EP1448271B2 (fr) 2001-11-27 2002-09-10 Masque de protection respiratoire pour appareil respiratoire a air comprime

Country Status (7)

Country Link
US (2) US7673630B2 (fr)
EP (1) EP1448271B2 (fr)
AT (1) ATE318647T1 (fr)
AU (1) AU2002336904A1 (fr)
DE (2) DE10159219B4 (fr)
ES (1) ES2259100T5 (fr)
WO (1) WO2003047698A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10159219B4 (de) * 2001-11-27 2005-09-29 Msa Auer Gmbh Atemschutzmaske für einen Preßluftatmer
WO2004052464A1 (fr) * 2002-12-11 2004-06-24 Draeger Safety Uk Ltd Appareil de respiration
US10159856B1 (en) * 2013-11-07 2018-12-25 The United States Of America As Represented By The Secretary Of The Army Apparatus and method for replacing an air filter of an air filtration mask
DE102015204645B4 (de) 2015-03-13 2020-04-23 Msa Europe Gmbh Atemschutzmaske
CN107822232B (zh) * 2017-12-05 2023-08-22 王冬艳 电动口罩反冲洗一体机

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE695492C (de) 1935-01-16 1940-08-26 Draegerwerk Heinr U Bernh Drae Ausatemventil fuer Gasschutzmasken
GB934213A (en) † 1959-04-04 1963-08-14 L V A S Soc An Lavoraz Varie A An improved air delivery unit for underwater respirators
DE1153258B (de) * 1961-05-16 1963-08-22 Draegerwerk Ag Druckgasatemschutzgeraet mit lungengesteuertem Atemgaszufuehrungs-ventil
DE1945462U (de) * 1965-03-17 1966-09-01 Draegerwerk Ag Atemschutzmaske fuer atemschutzgeraete mit druckgaszufuhr und an der maske angeordnetem lungengesteuertem ventil.
DE1708045A1 (de) 1967-06-03 1972-01-05 Draegerwerk Ag Atemschutzmaske mit Ausatemventilvorkammer und Sprechmembran
DE1945462A1 (de) * 1969-09-08 1971-03-11 Schieck Karl Dipl Ing Spurbahn,z.B. Eisen- oder Strassenbahn u.dgl.
US3957044A (en) † 1974-11-11 1976-05-18 Nasa Self-contained breathing apparatus
DE2720681C2 (de) † 1977-05-07 1979-07-05 Auergesellschaft Gmbh, 1000 Berlin Atemschutzgerät mit einer als AtemanschluB dienenden Atemschutzmaske
DE2852016A1 (de) * 1978-12-01 1980-06-04 Draegerwerk Ag Membran fuer atemgesteuertes dosierventil
US4856120A (en) * 1988-01-25 1989-08-15 Undersea Industries, Inc. Dive mask
IT1216459B (it) * 1988-02-26 1990-03-08 Ind Pirelli S P A Milano Minis Maschera protettiva per interventi operativi in ambienti contaminati.
DE4237294C1 (de) * 1992-11-05 1993-11-25 Draegerwerk Ag Atemschutzmaske mit Überdruck im Maskeninnenraum
GB2329591B (en) * 1996-06-05 2000-03-01 Scott Tech Inc Breathing apparatus
US5787882A (en) * 1996-06-21 1998-08-04 Computer Assisted Engineering Demand valve resuscitator
DE10159219B4 (de) * 2001-11-27 2005-09-29 Msa Auer Gmbh Atemschutzmaske für einen Preßluftatmer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03047698A1 *

Also Published As

Publication number Publication date
EP1448271B1 (fr) 2006-03-01
US7673630B2 (en) 2010-03-09
AU2002336904A1 (en) 2003-06-17
US8245712B2 (en) 2012-08-21
DE10159219B4 (de) 2005-09-29
US20110226251A1 (en) 2011-09-22
US20050066966A1 (en) 2005-03-31
ATE318647T1 (de) 2006-03-15
DE10159219A1 (de) 2003-06-12
DE50205957D1 (de) 2006-04-27
EP1448271B2 (fr) 2009-10-07
ES2259100T3 (es) 2006-09-16
ES2259100T5 (es) 2009-12-28
WO2003047698A1 (fr) 2003-06-12

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