EP0536546B1 - Appareil respiratoire assisté par un ventilateur avec organe de commande attachable - Google Patents

Appareil respiratoire assisté par un ventilateur avec organe de commande attachable Download PDF

Info

Publication number
EP0536546B1
EP0536546B1 EP92115316A EP92115316A EP0536546B1 EP 0536546 B1 EP0536546 B1 EP 0536546B1 EP 92115316 A EP92115316 A EP 92115316A EP 92115316 A EP92115316 A EP 92115316A EP 0536546 B1 EP0536546 B1 EP 0536546B1
Authority
EP
European Patent Office
Prior art keywords
blower unit
gas
control unit
respiratory
housing
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
EP92115316A
Other languages
German (de)
English (en)
Other versions
EP0536546A1 (fr
Inventor
Bodo Heins
Torsten Birenheide
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
Application filed by Draegerwerk AG and Co KGaA filed Critical Draegerwerk AG and Co KGaA
Publication of EP0536546A1 publication Critical patent/EP0536546A1/fr
Application granted granted Critical
Publication of EP0536546B1 publication Critical patent/EP0536546B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • A62B18/006—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 with pumps for forced ventilation

Definitions

  • the invention relates to a respirator with a respirator, to the respiratory gas inlet of which a particle or respiratory gas filter and a blower unit supporting breathing are connected, the blower unit being equipped with cable bushings for the electrical energy supply, and the respirator mask being at least directly connected to one another with the blower unit.
  • the respirator mask is directly connected to both the blower unit and the filter, the blower unit and filter being aligned with one another in the axial flow direction.
  • the fan part of the blower unit which supports the breathing gas during inhalation, is once fluidly arranged behind the filter as a breathing gas-sucking fan wheel, but it can also be installed upstream of the filter in terms of flow, the fan part pressing the breathing gas through the filter into the breathing gas inlet of the breathing mask.
  • the energy supply for the fan part is led out and through electrical lines from the blower unit a separate power supply (battery, control unit for the blower power and monitoring of the operating functions), which is attached as a separate component, for example, to the belt of the equipment carrier.
  • a pressure sensor which switches the blower unit on or off under certain circumstances using a switch. Both the sensor and the switch are fastened in a suitable place within the mask body, and their electrical connection is made to the power supply via separate cables.
  • control modules required for monitoring the blower unit are each individually connected both to the blower unit and to the energy supply, and that after replacing filters with different breathing gas resistances, the monitoring elements (pressure sensor, switch) cannot adapt to the new conditions, such as flow resistance and delivery rate.
  • the present invention is therefore based on the object of improving a respirator of the type mentioned in such a way that the blower output can be controlled independently of the filter type used and the filter service life according to predetermined setpoints, and the components controlling the blower output are attached to locations which are favorable for operation. and in the event of a filter change or changing loading condition of the built-in filters, the blower unit can be adapted to the changed performance parameters during operation.
  • the housing of the blower unit has a saddle-shaped upper part, via which a control unit adapted in terms of its outer dimensions to the contour of the upper part, the switching elements for the operation of the blower unit combined in an independent housing module, can be plugged on in a bow-like manner and thereby via electrical contact devices is connected to the cable bushings.
  • the advantage of the invention lies essentially in the fact that the housing module for the control part can be placed separately on the upper part of the blower unit, wherein it contains the components necessary for the operation and wiring of the blower unit.
  • the motor speed of the fan section can be monitored according to specified performance data and readjusted if necessary.
  • the necessary blower power can be programmed into a data memory within the control unit and can be passed on and monitored to the fan part of the blower unit via a speed setting.
  • the fan part can be a radial or an axial fan, which is driven by an electric motor.
  • Various types of coding can be used to ensure that the control unit required for the respiratory gas filter used is used.
  • such coding consists of a color marking on the control unit, which corresponds to the corresponding marking on the breathing gas filter.
  • the flow resistance increases, so that the increased power consumption of the motor for the fan part is regulated accordingly. This can be done by a power controller within the control unit.
  • a full face mask with a viewing window is used as a respiratory mask
  • the blower unit is provided with the control unit required for operation.
  • a simple coupling of the control unit to the upper part can be achieved in that the upper part has a semi-cylindrical shape, by means of which the control unit designed in the form of a horseshoe can be placed and engages around the upper part.
  • the electrical line bushings as metallic contact pads to the surface of the housing of the blower unit.
  • the control unit has contact pins at corresponding points which protrude from the housing surface and are pressed onto the contact pads when the control unit is attached.
  • the type and number of contact pins and the associated contact pads can also be used to provide further coding for a suitable combination between control unit and breathing gas filter.
  • a pressure line starting from the fan part of the blower unit to the surface of the housing of the blower unit, which ends there in a line mouth which is brought into a pressure-tight connection with a pressure inlet when the housing module of the control unit is plugged on. From the inlet, the pressure line continues to a pressure sensor within the control unit, so that the delivery pressure can always be measured and monitored. If a pressure limit is exceeded, which, for example, indicates that the respiratory gas filter is fully loaded, there is an acoustic and / or visual warning.
  • the pressure sensor is formed from a housing which is divided into two by a membrane, one housing part being connected to the pressure line and the other housing part being connected to the surroundings.
  • a magnet on the membrane which is moved with the membrane depending on the prevailing pressure conditions. The position of the magnet and thus the currently prevailing pressure is converted into an electrical signal by a holding element. If, for example, the power of the fan part of the blower unit is no longer sufficient to ensure sufficient overpressure in the breathing gas inlet, a pressure drop is generated with each breath, which triggers the warning when typically 0.1 mbar is reached.
  • the control unit works in this way as a display unit, both in the normal operating state and in the event of a fault if the fan part fails by a simple resistance detection triggering the warning device.
  • control unit contains a sensor element which responds in its composition to the breathing gas to be conveyed.
  • the gas-sensitive measuring surface of the sensor element is led out via a gas sample line to the surface of the housing module to a measuring gas opening and is brought into a gas-tight connection to a measuring gas line in the blower unit when the housing module is attached.
  • the sample gas line continues within the blower unit up to the breathing gas inlet through which the breathing gas is conveyed.
  • the sensor element responds to those gas components within the breathing gas that are to be retained by the filter.
  • An electrochemical measuring cell proves to be particularly suitable as a sensor element, since it is distinguished by an extremely low power consumption.
  • control unit as an independent housing module on a corresponding upper part of the blower unit can be realized both for full masks and for half masks, without the features of the invention having to be changed or the advantages of the invention being diminished.
  • FIG. 1 shows a breathing apparatus which, in conjunction with a full face mask (1), consists of a blower unit (2) which is connected on the one hand to the breathing gas inlet (3) of the mask (1) and on the other hand to the breathing gas filter (4).
  • the blower unit (2) is thus located in terms of flow between the breathing gas filter (4) and the breathing gas inlet (3).
  • the blower unit (2) has a semi-cylindrical upper part (5), which is arranged in the continuation of the center line of a viewing window (6) of the full face mask (1) in the field of view of the device wearer.
  • the upper part (5) has a control unit (7) placed in a bracket-like manner and brought into mechanical and electrical contact with the blower unit (2).
  • a warning lamp (9) points in the direction of the viewing window (6) on an elevation (8).
  • the partial section shown in FIG. 2 contains the breathing gas filter (4) in a filter housing (20), which is brought into flow connection with the blower unit (2) by means of a breathable gas-permeable cover (21).
  • the tight fit of the filter (4) is made by sealing pads (22).
  • the blower unit (2) contains a fan part (23) in the form of an axial blower, which is connected to an electric motor (24).
  • the necessary power lines (25) go from the electric motor (24) to metallic contact pads (26) which are attached to the surface of the blower unit (2).
  • the blower unit (2) also contains a pressure line (27), which is connected to the interior of the filter housing (20) and also opens on the surface of the blower unit (2), and a sample gas line (28), which also connects to the interior of the filter housing (20) is connected and opens on the surface of the blower unit (2).
  • the housing module (7) of the control unit which is placed on the upper part (5) of the blower unit (2), contains a sensor element (29) designed as an electrochemical gas sensor, the gas sample line (36) at its sample gas opening (30) being brought into register with the sample gas line (28) and a pressure sensor (31), the pressure inlet (32) of which is pressure-tightly connected to the mouth of the pressure line (27).
  • a Central control unit (33) (microprocessor) is connected on the one hand via contact pins (34) to the contact pads (26) and on the other hand via connecting lines (not shown) both to the pressure sensor (31), the gas sensor (29) and the warning lamp (9).
  • the respiratory gas flow is indicated by the directional arrows (35).
  • the double arrows (45) indicate the dividing line between the control unit (7) on the one hand and the blower unit (2) connected to the filter housing (20) on the other.
  • the horseshoe-shaped housing module (7) of the control unit is shown in the view as it is brought into contact with the blower unit (2) when it is in place.
  • Three contact pins (34) protrude from a recess (41) and form the connection connection to the contact pads (26).
  • the sample gas opening (30) continues to the sensor (29) and is surrounded by a silicone seal (42).
  • the delivery pressure inlet (32) is below and is also surrounded by a silicone seal (42).
  • the contour (43) of the housing module (7) adapted to the semi-cylindrical shape of the upper part (5) has a latching recess (44) into which a latching lug, not shown, of the blower unit (2) engages with its complementary shape.
  • the elevation (8) carries the warning lamp (9) on its undetectable rear side.

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)

Claims (10)

  1. Appareil de protection respiratoire comportant un masque de protection respiratoire, à l'entrée de gaz respiratoire duquel sont raccordés un filtre et une unité de soufflage facilitant la respiration, l'unité de soufflage étant équipée de passages de lignes pour l'alimentation en énergie électrique et le masque de protection respiratoire étant directement couplé au moins avec l'unité de soufflage, caractérisé en ce que le boîtier de l'unité de soufflage (2) possède une partie supérieure (5) en forme de selle, sur laquelle une unité de commande (7), dont les dimensions extérieures sont adaptées au contour de la partie supérieure (5) et réunissant les éléments de commande pour le fonctionnement de l'unité de soufflage (2) dans un module de boîtier indépendant, peut être emboîtée à la manière d'un étrier, et ce faisant est amenée en liaison avec les passages de ligne (25), par des dispositifs de contact électriques (26, 34).
  2. Appareil de protection respiratoire selon la revendication 1, caractérisé en ce que dans le cas d'un masque complet (1) avec fenêtre (6) servant de masque de protection respiratoire, l'unité de soufflage (2) est directement reliée au corps (1) du masque, l'unité de soufflage (2) formant avec son ventilateur (23) l'entrée de gaz respiratoire (3), et en ce que la partie supérieure (5) est située dans le prolongement de la ligne médiane de la fenêtre (6), au-dessus de l'entrée de gaz respiratoire (3).
  3. Appareil de protection respiratoire selon la revendication 1 ou 2, caractérisé en ce que l'unité de commande (7) entoure la partie supérieure (5) à la manière d'un fer à cheval.
  4. Appareil de protection respiratoire selon l'une des revendications 1 à 3, caractérisé en ce que les dispositifs de contact électriques sont placés sur la surface du boîtier de l'unité de soufflage (2) en tant que coussins de contact (26) et, lorsque l'unité de commande (7) est emboîtée, sont amenés en liaison avec des broches de contact (34), qui ressortent de l'unité de commande (7) en un point faisant face aux coussins de contact (26).
  5. Appareil de protection respiratoire selon l'une des revendications 1 à 4, caractérisé en ce que du boîtier de l'unité de soufflage (2) débouche une conduite de pression (27), qui est en liaison avec le ventilateur (23) permettant le transport du gaz respiratoire, et en ce que le module de boîtier (7) est pourvu d'une entrée de pression de transport (32), qui est raccordée à un capteur de pression (31) et qui, lorsque le module de boîtier (7) est emboîté, est amenée en contact étanche à la pression avec l'embouchure de la conduite de pression (27).
  6. Appareil de protection respiratoire selon l'une des revendications 1 à 5, caractérisé en ce que le boîtier de l'unité de soufflage (2) est équipé de crans dans lesquels s'accrochent des évidements (44) de l'unité de commande (7) emboîtée sur la partie supérieure (5).
  7. Appareil de protection respiratoire selon l'une des revendications 1 à 6, caractérisé en ce que l'unité de commande (7) porte une lampe de signalisation (9) sur un relief (8) situé au-dessus de la partie supérieure (5), dans la zone de visibilité de la vitre (6).
  8. Appareil de protection respiratoire selon l'une des revendications 1 à 7, caractérisé en ce que dans l'unité de commande (7) est prévu un avertisseur acoustique.
  9. Appareil de protection respiratoire selon l'une des revendications 1 à 8, caractérisé en ce que l'unité de commande (7) possède une sonde (29) pour la composition du gaz transporté à travers le ventilateur (23), qui, par une conduite d'échantillon de gaz (36), ressort à la surface du module de boîtier (7) vers une ouverture de gaz de mesure (30), et qui, lorsque le module de boîtier (7) est emboîté, est amené en liaison étanche aux gaz avec une conduite de gaz de mesure (28), dans l'unité de soufflage (2).
  10. Appareil de protection respiratoire selon la revendication 9, caractérisé en ce que la sonde est un capteur (29) électrochimique sensible aux composants de gaz devant être retenus par le filtre de gaz de respiration (4).
EP92115316A 1991-10-07 1992-09-08 Appareil respiratoire assisté par un ventilateur avec organe de commande attachable Expired - Lifetime EP0536546B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4133235A DE4133235A1 (de) 1991-10-07 1991-10-07 Geblaeseunterstuetztes atemschutzgeraet mit einem aufsetzbaren steuerteil
DE4133235 1991-10-07

Publications (2)

Publication Number Publication Date
EP0536546A1 EP0536546A1 (fr) 1993-04-14
EP0536546B1 true EP0536546B1 (fr) 1995-12-06

Family

ID=6442212

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92115316A Expired - Lifetime EP0536546B1 (fr) 1991-10-07 1992-09-08 Appareil respiratoire assisté par un ventilateur avec organe de commande attachable

Country Status (3)

Country Link
US (1) US5303701A (fr)
EP (1) EP0536546B1 (fr)
DE (2) DE4133235A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021203264A1 (de) 2020-04-07 2021-10-07 Francesco Paolo Monteleone Atemschutzmaske
EP3892338A1 (fr) 2020-04-07 2021-10-13 Francesco Paolo Monteleone Masque de protection respiratoire

Families Citing this family (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4202025C2 (de) * 1992-01-25 1995-02-02 Draegerwerk Ag Gebläseunterstütztes Atemschutzgerät mit einstellbarer Gebläseleistung
US5659296A (en) * 1994-10-24 1997-08-19 Minnesota Mining And Manufacturing Company Exposure indicating apparatus
US5666949A (en) * 1994-10-24 1997-09-16 Minnesota Mining And Manufacturing Company Exposure indicator with continuous alarm signal indicating multiple conditions
AUPN191095A0 (en) * 1995-03-23 1995-04-27 Safety Equipment Australia Pty Ltd Positive air-purifying respirator management system
US5592935A (en) * 1995-05-03 1997-01-14 Minnesota Mining And Manufacturing Company Positive/negative air pressure adaptor for use with respirators
US6186140B1 (en) * 1997-03-14 2001-02-13 3M Innovative Properties Company Respiratory filter element having a storage device for keeping track of filter usage and a system for use therewith
US6257235B1 (en) 1999-05-28 2001-07-10 Kimberly-Clark Worldwide, Inc. Face mask with fan attachment
US6575165B1 (en) 2000-08-03 2003-06-10 3M Innovative Properties Company Apparatus and method for breathing apparatus component coupling
GB0019291D0 (en) * 2000-08-07 2000-09-27 Secr Defence Respirators
EP1322367A4 (fr) * 2000-09-28 2009-08-26 Invacare Corp R gulation deux niveaux de la ventilation spontan e en pression positive continue sur la base du dioxyde de carbone
US6666209B2 (en) 2001-02-20 2003-12-23 3M Innovative Properties Company Method and system of calibrating air flow in a respirator system
US6553989B1 (en) * 2001-07-20 2003-04-29 James M. Richardson Self-contained breathing apparatus with emergency filtration device
DE10210878B4 (de) * 2002-03-12 2018-01-04 Drägerwerk AG & Co. KGaA Vorrichtung zur Atemunterstützung
US6701925B1 (en) 2002-04-11 2004-03-09 Todd A. Resnick Protective hood respirator
CN100415322C (zh) * 2002-12-23 2008-09-03 山本光学株式会社 呼吸用保护用具
KR100481669B1 (ko) * 2003-04-21 2005-04-14 강종신 방독면을 구비한 배낭
US7152598B2 (en) * 2003-06-23 2006-12-26 Invacare Corporation System and method for providing a breathing gas
FR2856930B1 (fr) * 2003-07-04 2007-09-07 Saime Sarl Dispositif d'aide a la respiration a turbine et capteur modulaires.
GB2404866B (en) 2003-08-15 2008-02-27 Shahar Hayek Respiratory apparatus
EP1675639A4 (fr) * 2003-09-25 2009-12-02 Resmed Ltd Masque de ventilateur et systeme
US8584676B2 (en) * 2003-11-19 2013-11-19 Immediate Response Technologies Breath responsive filter blower respirator system
DE102004013453B4 (de) * 2004-03-11 2006-07-27 Msa Auer Gmbh Gebläsefiltergerät für Atemschutzhauben und -masken
US20070000493A1 (en) * 2005-06-01 2007-01-04 Cox Kingsley J Apparatus for maintaining airway patency
US20070240719A1 (en) * 2006-04-18 2007-10-18 Raul Duarte Portable air-purifying system
WO2007124108A2 (fr) * 2006-04-21 2007-11-01 Cardinal Health 205, Inc. Appareil de thérapie respiratoire autonome pour conformité avec le patient et efficacité thérapeutique améliorées
EP2063945B1 (fr) * 2006-09-07 2019-07-03 ResMed Ltd. Masque et système générateur de flux
US20080060647A1 (en) * 2006-09-12 2008-03-13 Invacare Corporation System and method for delivering a breathing gas
US7897678B2 (en) * 2007-07-26 2011-03-01 3M Innovative Properties Company Fluorochemical urethane compounds having pendent silyl groups
US8015970B2 (en) * 2007-07-26 2011-09-13 3M Innovative Properties Company Respirator, welding helmet, or face shield that has low surface energy hard-coat lens
CA2696773A1 (fr) 2007-08-23 2009-02-26 Invacare Corporation Procede et dispositif de reglage de la pression recherchee dans des dispositifs de pression positive pour voies respiratoires
NZ574584A (en) 2008-01-31 2010-10-29 Resmed Ltd Respiratory Apparatus including a flow generator with two impellers and a directional stator
WO2010080709A1 (fr) 2009-01-08 2010-07-15 Hancock Medical Systèmes de pression des voies respiratoires positifs intermittents et autonomes, et méthodes de traitement de l'apnée du sommeil, du ronflement et d'autres troubles respiratoires
US10238822B2 (en) 2009-05-29 2019-03-26 Resmed Limited PAP system
GB2472592A (en) 2009-08-11 2011-02-16 3M Innovative Properties Co A control unit for respirator
EP3388101A1 (fr) 2009-08-28 2018-10-17 Resmed Limited Système pap
JP2013508087A (ja) * 2009-10-20 2013-03-07 デシャム・メディカル，エルエルシー 統合された気道内陽圧装置
EP3323461B1 (fr) 2009-11-19 2021-12-29 ResMed Motor Technologies Inc Gebläse
BR112013002839B1 (pt) * 2010-08-06 2020-02-18 Scott Technologies, Inc. Dispositivo de sensor para indicação de final de vida de serviço
US8336546B2 (en) 2011-02-08 2012-12-25 Hancock Medical, Inc. Positive airway pressure system with head control
US9084859B2 (en) 2011-03-14 2015-07-21 Sleepnea Llc Energy-harvesting respiratory method and device
EP3738638A1 (fr) 2012-03-15 2020-11-18 Fisher & Paykel Healthcare Limited Système d'humidification de gaz respiratoire
BR112014026771B1 (pt) 2012-04-27 2022-03-15 Fisher & Paykel Healthcare Limited Aparelho de umidificação para sistema de umidificação respiratória
GB2508184A (en) * 2012-11-22 2014-05-28 3M Innovative Properties Co Powered exhaust apparatus for respiratory device
WO2014117179A1 (fr) 2013-01-28 2014-07-31 Hancock Medical, Inc. Dispositifs et procédés de commande de position destinés à être utilisés avec des systèmes de pression de voie aérienne positive
DE102013008901A1 (de) * 2013-05-27 2014-11-27 Dräger Safety AG & Co. KGaA Gebläsefiltersystem
CN115671460A (zh) 2013-09-13 2023-02-03 费雪派克医疗保健有限公司 用于加湿系统的连接
HUE062413T2 (hu) 2013-12-20 2023-10-28 Fisher & Paykel Healthcare Ltd Párásító rendszer csatlakozásai
WO2015119515A1 (fr) 2014-02-07 2015-08-13 Fisher & Paykel Healthcare Limited Système d'humidification respiratoire
CN110124174A (zh) 2014-05-13 2019-08-16 费雪派克医疗保健有限公司 用于呼吸增湿系统的可用性特征
WO2015187039A1 (fr) 2014-06-03 2015-12-10 Fisher & Paykel Healthcare Limited Mélangeurs d'écoulement pour des systèmes de thérapie respiratoire
US10881829B2 (en) 2014-08-18 2021-01-05 Resmed Inc. Portable pap device with humidification
USD776802S1 (en) 2015-03-06 2017-01-17 Hancock Medical, Inc. Positive airway pressure system console
JP2019518520A (ja) 2016-05-19 2019-07-04 ハンコック メディカル， インコーポレイテッド 位置閉塞性睡眠時無呼吸検出システム
USD858749S1 (en) 2016-08-06 2019-09-03 Stephen P Konrad Mouth-held filter
WO2018106126A1 (fr) 2016-12-07 2018-06-14 Fisher And Paykel Healthcare Limited Agencements de détection pour dispositifs médicaux
US11474020B2 (en) 2017-09-01 2022-10-18 3M Innovative Properties Company Sensing element for respirator
EP3675970A4 (fr) * 2017-09-01 2021-06-30 3M Innovative Properties Company Procédé d'essai de réglage pour respirateur doté d'un système de détection
WO2019046686A1 (fr) 2017-09-01 2019-03-07 3M Innovative Properties Company Procédé d'essai de réglage pour respirateur doté de système de détection
CN111050644A (zh) 2017-09-01 2020-04-21 3M创新有限公司 用于呼吸器的感测系统
CN112516477A (zh) * 2020-11-16 2021-03-19 科安尼生物医疗科技(北京)有限公司 一种新型辅助呼吸防雾口罩

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU4275385A (en) * 1984-06-06 1985-12-12 Racal Safety Ltd. Respirators fan-assisted
DE3613512C3 (de) * 1986-04-22 1994-09-29 Auergesellschaft Gmbh Elektrische Warneinrichtung zur Anzeige des Erschöpfungszustandes eines Schadgase zurückhaltenden Gasfilters
GB2215216B (en) * 1988-03-01 1991-12-18 Sabre Safety Ltd Positive pressure breathing apparatus
DE3818052A1 (de) * 1988-05-27 1989-12-07 Geraetebau Gmbh Atemschutzmaske
GB2221164B (en) * 1988-07-26 1992-02-12 Racal Safety Ltd Breathing apparatus
US4899740A (en) * 1989-01-17 1990-02-13 E. D. Bullard Company Respirator system for use with a hood or face mask

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021203264A1 (de) 2020-04-07 2021-10-07 Francesco Paolo Monteleone Atemschutzmaske
EP3892338A1 (fr) 2020-04-07 2021-10-13 Francesco Paolo Monteleone Masque de protection respiratoire

Also Published As

Publication number Publication date
DE4133235A1 (de) 1993-04-08
EP0536546A1 (fr) 1993-04-14
DE4133235C2 (fr) 1993-09-23
DE59204588D1 (de) 1996-01-18
US5303701A (en) 1994-04-19

Similar Documents

Publication Publication Date Title
EP0536546B1 (fr) Appareil respiratoire assisté par un ventilateur avec organe de commande attachable
DE69213620T2 (de) Giftstoffatemschutzausrüstung
DE4202025C2 (de) Gebläseunterstütztes Atemschutzgerät mit einstellbarer Gebläseleistung
DE3109658C2 (de) Elektrisch steuerbares Atemschutzgerät nach dem Kreislaufprinzip
DE102004013453B4 (de) Gebläsefiltergerät für Atemschutzhauben und -masken
DE3412409A1 (de) Atemmaske
DE10315607B4 (de) Belüftungssystem für Schutzbekleidung
DE3111795C3 (de) Atembeutel mit einem im Innern angeordneten Luftverteiler
DE10323138A1 (de) Not-Sauerstoffversorgungssystem für ein Flugzeug
DE3032371A1 (de) Atemschutzhelm
DE10333585A1 (de) Atemschutzprodukt mit einer elektrischen Komponente
EP1436046B1 (fr) Appareil respiratoire pour equipements respiratoires a air comprime
DE202020002532U1 (de) Filtermaske mit Luftansaug- und Luftauslassfunktion
DE10261602A1 (de) Atemschutzvorrichtung
EP0674918A1 (fr) Dispositif d'oxygène chimique
DE10201250C1 (de) Druckluftversorgungssystem für ein Preßluftatemgerät
DE19854301C5 (de) Gasdruckregler mit Überdrucksicherung
EP1537903B1 (fr) Dispositif avec filtre
DE3035385C2 (de) Belüftungsvorrichtung für Personenfahrzeuge, insbesondere Kampfwagen, Sanitätswagen, Kommandowagen o.dgl.
DE69217896T2 (de) Vor der Brust zu tragende Atemgas-Anschlussanordnung
DE9214412U1 (de) Fahrzeugkabine mit Innenraumüberdruck
DE3508129C2 (de) Druckluft-Schlauchgerät für Atemschutz
EP0182235B1 (fr) Cagoule de protection respiratoire
EP1448271A1 (fr) Masque de protection respiratoire pour appareil respiratoire a air comprime
DE2951312C2 (de) Explosionsgeschützte Diesellokomotive

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT SE

17P Request for examination filed

Effective date: 19930503

17Q First examination report despatched

Effective date: 19950428

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT SE

REF Corresponds to:

Ref document number: 59204588

Country of ref document: DE

Date of ref document: 19960118

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19960304

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19960819

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19960906

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19960913

Year of fee payment: 5

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970908

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970909

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19970930

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19970908

EUG Se: european patent has lapsed

Ref document number: 92115316.9

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20001006

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050908