EP0275934A2 - Cagoule de protection pour cas d'urgence - Google Patents

Cagoule de protection pour cas d'urgence Download PDF

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Publication number
EP0275934A2
EP0275934A2 EP88100486A EP88100486A EP0275934A2 EP 0275934 A2 EP0275934 A2 EP 0275934A2 EP 88100486 A EP88100486 A EP 88100486A EP 88100486 A EP88100486 A EP 88100486A EP 0275934 A2 EP0275934 A2 EP 0275934A2
Authority
EP
European Patent Office
Prior art keywords
hood
protective hood
nonwoven fabric
breathing
hood according
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
EP88100486A
Other languages
German (de)
English (en)
Other versions
EP0275934B1 (fr
EP0275934A3 (en
Inventor
Carl-Ernst Dr. Van Der Smissen
Holmer Dipl.-Ing. Röhling
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.)
Draegerwerk AG and Co KGaA
Original Assignee
Draegerwerk AG and Co KGaA
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=6319244&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0275934(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Draegerwerk AG and Co KGaA filed Critical Draegerwerk AG and Co KGaA
Publication of EP0275934A2 publication Critical patent/EP0275934A2/fr
Publication of EP0275934A3 publication Critical patent/EP0275934A3/de
Application granted granted Critical
Publication of EP0275934B1 publication Critical patent/EP0275934B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B17/00—Protective clothing affording protection against heat or harmful chemical agents or for use at high altitudes
    • A62B17/04—Hoods
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S55/00—Gas separation
    • Y10S55/35—Respirators and register filters

Definitions

  • the invention relates to a protective cover for emergencies, which is partly formed from a permeable, dust-like contaminant-retaining sheet, at least in the eye area from a transparent material has existing section and has an inner half mask with a breathing air inlet and an exhalation valve.
  • Protective covers for emergencies are preferably used when rescuing people from fire-endangered rooms in which smoke and dust develop in the event of a fire, but they also serve as respiratory protection for flight passengers who require additional breathing support in the passenger cabin in the event of decompression or if a fire breaks out , be it by protection against breathable pollutants and / or by enriching the breathing air with oxygen.
  • the known protective hood consists of a material that is permeable to air and water vapor, however Holds back dust. It has an inner half mask with an inlet opening which opens into the interior of the hood and through which the hood wearer can breathe the air. The exhalation takes place via an exhalation valve, which opens into the surroundings from the inner half mask. In order to keep even the finest dusts, which could possibly have penetrated through the interstices of the hood, away from the airways of the hood wearer, the inlet opening is provided with a further dust filter. In order to suppress pendulum breathing in the hood space, the flow resistance of this inlet opening must be significantly greater than that of the exhalation valve. This makes breathing difficult.
  • the known protective hood In the known protective hood, it is disadvantageous that it can only protect the hood carrier against dusts, an inlet opening with considerable breathing resistance being required to retain the finest dusts. Protection against gaseous pollutants that penetrate the hood fabric and then irritate the eyes and skin and damage the breathing is not provided.
  • the protruding design of the inhalation opening and the outlet valve prevents the entire hood from being packed in a space-saving manner and is therefore a hindrance in the known confined spaces in the aircraft or on the user himself.
  • This protective hood is used to completely cover the head and is made in the form of a hood made of a fabric that can be stored by Activated carbon is designed as a filter.
  • Activated carbon is designed as a filter.
  • a dome-shaped spacer can be attached over the mouth-nose area. Breathing takes place through the entire surface of the hood, with both inhalation and exhalation taking place undirected via the space between the head of the hood wearer and the hood itself. This creates an undesirably high ventilated dead space, which leads to excessive C02 and water vapor accumulation with long-term breathing activity.
  • the present invention is therefore based on the object of improving a protective hood of the type mentioned in such a way that its breathing resistance is reduced with a small ventilated dead space, its height and weight are reduced and its area of use also for protection against harmful gases of the respiratory tract and the surface of the head is expanded.
  • the web consists of a nonwoven fabric which is provided with a preparation which also retains gaseous pollutants, and in that an inhalation valve is provided as the breathing air inlet.
  • the advantages achieved with the invention are essentially that now the large-area, low-resistance nonwoven fabric as the sole filter is sufficient and a low inhalation resistance is achieved through the easily responding inhalation valve.
  • the inhalation valve prevents exhaled air from entering the hood space as a dead space, which could lead to dangerous C02 enrichment and oxygen depletion of the inhalation flow.
  • the protective effect of the filtering web has been expanded to include additional gaseous pollutants depending on the choice of impregnation. This also protects the head area from these damaging environmental influences. Since there are no other bulky filters apart from the collapsible filter sheet, the protective cover is ready to form a handy, easy-to-carry emergency package.
  • a particularly effective preparation can consist in that the nonwoven fabric is permeated with activated carbon or aluminum oxide, which are provided with an impregnation.
  • the activated carbon can consist of incorporated granular material or also of integrated activated carbon fibers.
  • the use of activated carbon fibers has the advantage that they can be incorporated into the hood both as a fabric structure and as a fleece and thus have a self-supporting function.
  • the nonwoven fabric can be provided with a copper-chromium and / or zinc impregnation to filter out, for example, hydrocyanic acid.
  • a copper-chromium and / or zinc impregnation to filter out, for example, hydrocyanic acid.
  • impregnation with noble metals from the Pt group can be provided.
  • the inner half mask of the protective hood is provided with an additional connecting piece which has a switching valve and to which a respiratory gas supply can be connected.
  • the connection piece is closed by the switching valve against the ingress of unpurified outside air, while it is open when a breathing gas supply is connected.
  • the hood wearer can connect an external oxygen source to the half mask as a breathing gas supply, such as is available, for example, in the electrical system of an aircraft, or if the hood is used underground in mining, a portable oxygen source can be carried for this purpose.
  • the half mask can therefore be used both for enriching the breathing air with oxygen and for escaping from rooms that are at risk of fire or enriched with pollutants, as is required, for example, during rescues from burning airplanes or in the case of hotel fires.
  • the switching valve can preferably be designed such that the gas path into the inner half mask is opened by coupling the breathing gas supply, and it prevents the passage of ambient air when the breathing gas supply is disconnected. This inevitable connection of the valve circuit with the coupling process ensures that even under panic in emergency situations there are no serious switching errors.
  • the hood (1) in FIG. 2 is extended at the end piece (6) of its inner half mask (3) by a switching valve (11) to which a breathing bag (12) is connected, which can be filled with additional oxygen via a supply line (13) from a gas source, not shown, such as vehicle electrical system, bottle or chemical cartridge.
  • the supply line (13) is connected to the nozzle (14) on the breathing bag (12).
  • the breathing bag (12) carries a coupling sleeve (18) which engages over the housing (19) of the switching valve (11) (see Fig. 3).
  • a spring-loaded closure element (16) is opened by a driver (15) arranged in the coupling sleeve (18) and clears the way into the interior of the half mask (3).
  • a check valve (20) prevents breathing back into the breathing bag (12).
  • the spring (17) presses the closure (16) against its seat and prevents ambient air from penetrating into the half mask (3) even during the inhalation phase.

Landscapes

  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
EP88100486A 1987-01-22 1988-01-15 Cagoule de protection pour cas d'urgence Expired - Lifetime EP0275934B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873701695 DE3701695A1 (de) 1987-01-22 1987-01-22 Schutzhaube fuer den notfall
DE3701695 1987-01-22

Publications (3)

Publication Number Publication Date
EP0275934A2 true EP0275934A2 (fr) 1988-07-27
EP0275934A3 EP0275934A3 (en) 1989-06-14
EP0275934B1 EP0275934B1 (fr) 1991-08-14

Family

ID=6319244

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88100486A Expired - Lifetime EP0275934B1 (fr) 1987-01-22 1988-01-15 Cagoule de protection pour cas d'urgence

Country Status (5)

Country Link
US (1) US4807614A (fr)
EP (1) EP0275934B1 (fr)
JP (1) JPH0720497B2 (fr)
DE (2) DE3701695A1 (fr)
ES (1) ES2025705T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989002293A1 (fr) * 1987-09-21 1989-03-23 Karl Wingett Smith Appareil respiratoire
FR2680468A1 (fr) * 1991-08-23 1993-02-26 Miaud Pierre Bulle de tete pour l'evacuation des blesses en atmosphere toxique.
EP0876830A3 (fr) * 1997-04-09 2000-10-18 Duram Rubber Products Masque de protection respiratoire améliorée

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5115804A (en) * 1987-08-05 1992-05-26 Dme Corporation Protective hood and oral-nasal mask
US5029578A (en) * 1989-09-15 1991-07-09 United States Of America As Represented By The Secretary Of The Navy Oxygen breathing apparatus simulator
US5038768A (en) * 1989-10-02 1991-08-13 The United States Of America As Represented By The Secretary Of The Navy Carbon monoxide conversion device
US5113854A (en) * 1990-01-25 1992-05-19 Figgie International, Inc. Quick-donning protective hood assembly
FR2669542B1 (fr) * 1990-11-27 1993-02-19 Intertechnique Sa Equipement individuel de protection a scaphandre et alimentation autonome.
US6340024B1 (en) 1993-01-07 2002-01-22 Dme Corporation Protective hood and oral/nasal mask
US5373851A (en) * 1993-04-19 1994-12-20 Brunswick Biomedical Corporation Specialized peak flow meter
US5529058A (en) * 1994-09-30 1996-06-25 Crippen; Warren S. Personal self-contained air safety system
DE19519869C2 (de) * 1995-05-31 2001-02-08 Kaercher Gmbh & Co Alfred Dekontaminierbares Schutzmaterial sowie daraus hergestellter ABC- Schutzanzug
US6432172B1 (en) 1996-03-07 2002-08-13 Ptrl East, Inc. Method of treating symptoms of panic attacks
US5709204A (en) * 1996-11-04 1998-01-20 Lester; Richard Aircraft passenger oxygen, survival and escape mask
US6408845B1 (en) 1997-05-19 2002-06-25 Michael Pereira Respiratory filter
US6158429A (en) * 1998-10-26 2000-12-12 The United States Of America As Represented By The Secretary Of The Army Hood respirator for protection against biological hazards
AU6064000A (en) * 1999-06-30 2001-01-31 University Of Florida Ventilator monitor system and method of using same
US6412482B1 (en) * 2000-01-24 2002-07-02 Carl D. Rowe Avalanche survival pack assembly
GB2367755B (en) * 2000-08-01 2002-08-28 Joseph Anthony Griffiths Emergency escape hood
IL148504A (en) * 2002-03-05 2006-10-05 Reisman Ron Protective breathing hood
US6701925B1 (en) * 2002-04-11 2004-03-09 Todd A. Resnick Protective hood respirator
US6796304B2 (en) 2002-04-12 2004-09-28 3M Innovative Properties Company Personal containment system with sealed passthrough
US6948191B2 (en) * 2002-04-12 2005-09-27 3M Innovative Properties Company Personal protective suit with partial flow restriction
GB0210417D0 (en) * 2002-05-08 2002-06-12 Qinetiq Ltd Respirator assembly
US7677245B2 (en) * 2002-05-15 2010-03-16 Dimar S.R.L. Helmet for artificial respiration
US7210477B2 (en) * 2002-05-29 2007-05-01 Brookdale International Systems, Inc. Respirator hood assembly
US6758212B2 (en) * 2002-06-24 2004-07-06 Brookdale International Systems, Inc. Personal emergency breathing system
IL152060A0 (en) * 2002-10-02 2003-07-31 Porat Michael Emergency escape mask
AU2003269451A1 (en) * 2002-10-03 2004-04-23 Inspure Device for providing protection to the respiratory system
US7251841B2 (en) * 2002-10-15 2007-08-07 Ralph Corsini Integrated facemask firefighting hood packing system
KR20040068913A (ko) 2004-07-16 2004-08-02 (주)우리텍 다기능성 마스크
USD547442S1 (en) * 2005-10-14 2007-07-24 Avon Polymer Products Limited Escape hood
JP5474803B2 (ja) * 2007-10-05 2014-04-16 スリーエム イノベイティブ プロパティズ カンパニー レスピレーターの流量制御装置及び方法
US8613113B1 (en) * 2009-02-25 2013-12-24 Todd A. Resnick Compact protective hood with vulcanized neck dam interface
UA97677C2 (uk) * 2010-02-15 2012-03-12 Николай Григорьевич Ляпко Пристрій для лікувального дихання
AT11668U3 (de) * 2010-04-14 2011-07-15 Peter Kraml Gesichts- bzw. kopfschutz gegen staub und pollen
JP5093863B1 (ja) * 2011-09-28 2012-12-12 隆平 川口 放射性物質対策インナーマスク
US8574331B2 (en) * 2011-10-26 2013-11-05 Elwha Llc Air-treatment mask systems, and related methods and air-treatment masks
EP2805748B1 (fr) * 2013-05-24 2018-09-26 Drägerwerk AG & Co. KGaA Masque respiratoire doté d'une soupape de respiration de secours
US11077425B2 (en) 2016-09-02 2021-08-03 Regents Of The University Of Minnesota Systems and methods for body-proximate recoverable capture of mercury vapor during cremation
EP3791933B1 (fr) * 2019-09-13 2023-01-11 Safran Aerotechnics Système d'apport de gaz respiratoire à des passagers
CN210605243U (zh) * 2020-03-19 2020-05-22 深圳北极之光科技有限公司 一种主动送风净化护目镜
CN111389362B (zh) * 2020-03-30 2022-05-17 山西新华防化装备研究院有限公司 一种防护HCN、CNCl用载镍浸渍炭及制备方法
US11871803B2 (en) * 2020-04-03 2024-01-16 Lsi Solutions, Inc. Wearable physical shield
JP2023047094A (ja) * 2021-09-24 2023-04-05 株式会社Magos 保護装置

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US1410928A (en) * 1920-05-22 1922-03-28 American La France Fire Engine Respirator
DE530381C (de) * 1928-09-30 1931-07-28 Draegerwerk Ag Absorptionsmasse fuer Gasfilter, insbesondere solche fuer Atmungszwecke
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US4355637A (en) * 1979-03-09 1982-10-26 Laporte Industries Limited Surgical masks
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US4683880A (en) * 1981-01-27 1987-08-04 E. I. Du Pont De Nemours And Company Toxic fume protective hood and method of construction
EP0070839A1 (fr) * 1981-02-05 1983-02-09 DE LA PENA, Michael Capuchon de protection contre la chaleur et la fumee
JPS5825175A (ja) * 1981-08-07 1983-02-15 揚　文羊 防煙防毒マスク
DE3138697A1 (de) * 1981-09-29 1983-04-07 Multi-Chemie AG, 8001 Zürich Abc-schutzmaske
JPS5858103A (ja) * 1981-09-30 1983-04-06 Mitsubishi Chem Ind Ltd 分離膜
JPS5946188B2 (ja) * 1981-10-05 1984-11-10 恵正 中川 防煙防毒マスク
DE3206484C2 (de) * 1982-02-23 1984-03-15 Drägerwerk AG, 2400 Lübeck Atemschutzgerät mit Schutzhaube
DE3231717C2 (de) * 1982-08-26 1986-04-24 Drägerwerk AG, 2400 Lübeck Luftreinigungsmittel, imprägniert und zur Verwendung in Filtern
US4619254A (en) * 1983-01-13 1986-10-28 E. D. Bullard Company Protective respirator hood with inner and outer bibs
EP0114164A1 (fr) * 1983-01-19 1984-08-01 Multi-Chemie AG Masque protecteur ABC
US4502480A (en) * 1983-02-24 1985-03-05 Yamamoto Kogaku Co., Ltd. Helmet equipped with device for supplying atmospheric air
US4572178A (en) * 1983-04-01 1986-02-25 Toyo Cci Kabushiki Kaisha Emergency mask
US4643182A (en) * 1983-04-20 1987-02-17 Max Klein Disposable protective mask
EP0130707B1 (fr) * 1983-06-07 1988-05-11 Racal Safety Limited Appareil respiratoire
DE3405100A1 (de) * 1984-02-14 1985-08-14 Drägerwerk AG, 2400 Lübeck Pt-katalysator auf einem traeger als luftreinigungsmittel
SE448681B (sv) * 1984-09-21 1987-03-16 Interspiro Ab Andningsapparat av reddningstyp
US4627431A (en) * 1985-03-12 1986-12-09 E. I. Du Pont De Nemours And Company Protective hood with CO2 absorbent
US4637383A (en) * 1985-12-23 1987-01-20 Lockheed Corporation Toxic environmental breathing hood

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989002293A1 (fr) * 1987-09-21 1989-03-23 Karl Wingett Smith Appareil respiratoire
FR2680468A1 (fr) * 1991-08-23 1993-02-26 Miaud Pierre Bulle de tete pour l'evacuation des blesses en atmosphere toxique.
EP0876830A3 (fr) * 1997-04-09 2000-10-18 Duram Rubber Products Masque de protection respiratoire améliorée

Also Published As

Publication number Publication date
DE3701695A1 (de) 1988-08-04
DE3701695C2 (fr) 1991-06-27
JPH0720497B2 (ja) 1995-03-08
EP0275934B1 (fr) 1991-08-14
EP0275934A3 (en) 1989-06-14
US4807614A (en) 1989-02-28
DE3864151D1 (de) 1991-09-19
JPS63192463A (ja) 1988-08-09
ES2025705T3 (es) 1992-04-01

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