EP0447619A1 - SystÀ¨me d'alarme avec une cellule de mesure et signalisation d'alarme pour indiquer l'état d'usure d'un filtre à gaz - Google Patents

SystÀ¨me d'alarme avec une cellule de mesure et signalisation d'alarme pour indiquer l'état d'usure d'un filtre à gaz Download PDF

Info

Publication number: EP0447619A1
Authority: EP; European Patent Office
Prior art keywords: warning device; gas filter; flap piece; breathing tube; measuring cell
Prior art date: 1990-03-21
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

EP90121361A

Other languages

German (de)

English (en)

Other versions

EP0447619B1 (fr

Inventor

Detlef Hoffmann

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.)

Auergesellschaft GmbH

Original Assignee

Auergesellschaft 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.)

1990-03-21

Filing date

1990-11-08

Publication date

1991-09-25

1990-11-08 Application filed by Auergesellschaft GmbH filed Critical Auergesellschaft GmbH

1990-11-08 Priority to AT90121361T priority Critical patent/ATE97824T1/de

1991-09-25 Publication of EP0447619A1 publication Critical patent/EP0447619A1/fr

1993-12-01 Application granted granted Critical

1993-12-01 Publication of EP0447619B1 publication Critical patent/EP0447619B1/fr

2010-11-08 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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
- A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
- A62B18/088—Devices for indicating filter saturation

Definitions

the invention relates to a warning device with a measuring cell and alarm transmitters for displaying the state of exhaustion of a gas filter in connection with a breathing connection, the warning device being designed as a unit separate from the gas filter.
Such a warning device is already known from DE 36 13 512 C2.
Optical and acoustic signal indicators are used in an electronic circuit arrangement as alarm devices, the measured value triggering the alarm being determined by means of an electrochemical measuring cell.
the use of optical and acoustic signals as alarm devices can be ignored or overlooked by the device wearer in the event of noise or poor visibility.
the invention is therefore based on the object of providing a warning device of the type mentioned at the outset which clearly and safely indicates to the device wearer the state of exhaustion of the gas filter even in the event of noise and poor visibility.
Fig. 3 the electronic circuit arrangement of the warning device 1 is shown as a block diagram.
the measuring cell 3 is a signal amplifier 19 and this a threshold switch 20 and as an alarm, the mechanical device 6 according to the invention with the permanent magnet 7 and the electromagnetic interrupter 7 a downstream.
the battery 5 is provided with a battery monitor 21 for supplying power to the circuit arrangement.
the switching threshold of the threshold switch 20 is set to the measurement signal corresponding to the measurement value which triggers the alarm corresponds to a certain harmful gas concentration, which indicates the end of the period of use of the gas filter 11.
the measuring signal coming from the measuring cell 3 exceeds the set switching threshold (alarm threshold) of the threshold switch 20, its output is turned on and the electromagnetic interrupter 7 a is activated such that the magnet 7 is deactivated and the held flap piece 14 is released, which is then released by means of the
the spring drive 16 swings suddenly into the breathing tube 8 and comes to rest against the stop 10 in the end position.
the flap piece 14 closes the flow cross section of the breathing tube 8 and only the opening 17, which is worked in concentrically in the flap piece, remains as a passage for inhalation for the device wearer. Due to the relatively small opening 17, the inhalation resistance increases noticeably. This is then the sign for the equipment carrier that the gas filter 11 will be exhausted in a short time.
FIG. 4 shows a block diagram of the warning device 1, in which, in addition to the flap device 6 described above and connected in parallel to it, a light-emitting diode 22 is provided as an optical alarm transmitter and a signal transmitter 23 as an acoustic alarm transmitter.
An electrochemical measuring cell can be provided as the measuring cell 3, which works on the principle of electrochemical oxidation. It serves as a measuring element for the detection of harmful concentrations of harmful gas in the inhaled air, which can no longer be retained or removed by the gas filter 11 connected upstream of the measuring element in the event of being exhausted. In other words: the measuring element 3 measures a certain harmful pollutant concentration, which indicates that the pollutant retained in the gas filter 11 breaks through, which means that the gas filter is exhausted. Electrochemical measuring cells already exist for the detection of carbon monoxide, chlorine, hydrogen sulfide, hydrocyanic acid and oxygen, which can be used in the warning device 1 for the corresponding gas filter.
a semiconductor sensor can be used as the measuring element, as a result of which a larger number of pollutants to be detected can advantageously be measured.

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)
Fuel Cell (AREA)
Sampling And Sample Adjustment (AREA)
Burglar Alarm Systems (AREA)
Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)

EP90121361A 1990-03-21 1990-11-08 Système d'alarme avec une cellule de mesure et signalisation d'alarme pour indiquer l'état d'usure d'un filtre à gaz Expired - Lifetime EP0447619B1 (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
AT90121361T ATE97824T1 (de)	1990-03-21	1990-11-08	Warneinrichtung mit einer messzelle und alarmgebern zur anzeige des erschoepfungszustandes eines gasfilters.

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE4009107		1990-03-21
DE4009107A DE4009107A1 (de)	1990-03-21	1990-03-21	Warneinrichtung mit einer messzelle und alarmgebern zur anzeige des erschoefpungszustandes eines gasfilters

Publications (2)

Publication Number	Publication Date
EP0447619A1 true EP0447619A1 (fr)	1991-09-25
EP0447619B1 EP0447619B1 (fr)	1993-12-01

Family

ID=6402758

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP90121361A Expired - Lifetime EP0447619B1 (fr)	1990-03-21	1990-11-08	Système d'alarme avec une cellule de mesure et signalisation d'alarme pour indiquer l'état d'usure d'un filtre à gaz

Country Status (4)

Country	Link
EP (1)	EP0447619B1 (fr)
AT (1)	ATE97824T1 (fr)
DE (2)	DE4009107A1 (fr)
NO (1)	NO905329L (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
AU645959B3 (en) *	1993-11-05	1994-01-27	Purecab (Australia) Pty Ltd	Respiratory filter indicator
WO1996012524A1 (fr) *	1994-10-24	1996-05-02	Minnesota Mining And Manufacturing Company	Exposimetre
WO1996012523A1 (fr) *	1994-10-24	1996-05-02	Minnesota Mining And Manufacturing Company	Exposimetre a signal d'alarme
WO1998024516A1 (fr) *	1996-12-07	1998-06-11	T.E.M. Technische Entwicklung Und Management Gmbh	Ameliorations concernant les masques a gaz
WO2000054841A1 (fr)	1999-03-17	2000-09-21	T.E.M.! Technische Entwicklungen Und Management Gmbh	Dispositif capteur et procede pour la detection de gaz ou de vapeurs contenus dans l'air
DE19911867A1 (de) *	1999-03-17	2000-10-19	T E M Tech Entwicklungen Und M	Sensorsystem zur Detektion von Gasen und Dämpfen in Luft
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
EP0814872A4 (fr) *	1995-03-23	2001-07-11	Safety Equipment Sweden Ab	Systeme de commande de respirateurs a adduction d'air filtre avec ensemble moteur

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE29504087U1 (de) *	1995-03-10	1995-08-10	Palocz-Andresen, Michael, Dr.-Ing.habil., 20459 Hamburg	Mikro-Meßvorrichtung für die Erfassung der Beladung von Filtern

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1676125A (en) *		1928-07-03		Device for indicating admixtures to gases and liquids
FR1353343A (fr) *	1963-04-09	1964-02-21		Avertisseur pour appareils protecteurs des voies respiratoires
DE3613512A1 (de) *	1986-04-22	1987-10-29	Auergesellschaft Gmbh	Warneinrichtung zur anzeige des erschoepfungszustandes eines schadgase zurueckhaltenden gasfilters

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE670550C (de) *	1929-04-10	1939-01-20	Bernh Draeger	Sauerstoffatemschutzgeraet
DE693685C (de) *	1935-11-19	1940-07-17	Auergesellschaft Akt Ges	Warnvorrichtung fuer Sauerstoffatemschutzgeraete

1990
- 1990-03-21 DE DE4009107A patent/DE4009107A1/de active Granted
- 1990-11-08 AT AT90121361T patent/ATE97824T1/de not_active IP Right Cessation
- 1990-11-08 DE DE90121361T patent/DE59003710D1/de not_active Expired - Fee Related
- 1990-11-08 EP EP90121361A patent/EP0447619B1/fr not_active Expired - Lifetime
- 1990-12-10 NO NO90905329A patent/NO905329L/no unknown

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1676125A (en) *		1928-07-03		Device for indicating admixtures to gases and liquids
FR1353343A (fr) *	1963-04-09	1964-02-21		Avertisseur pour appareils protecteurs des voies respiratoires
DE3613512A1 (de) *	1986-04-22	1987-10-29	Auergesellschaft Gmbh	Warneinrichtung zur anzeige des erschoepfungszustandes eines schadgase zurueckhaltenden gasfilters

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
AU645959B3 (en) *	1993-11-05	1994-01-27	Purecab (Australia) Pty Ltd	Respiratory filter indicator
WO1996012524A1 (fr) *	1994-10-24	1996-05-02	Minnesota Mining And Manufacturing Company	Exposimetre
WO1996012523A1 (fr) *	1994-10-24	1996-05-02	Minnesota Mining And Manufacturing Company	Exposimetre a signal d'alarme
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
EP0814872A4 (fr) *	1995-03-23	2001-07-11	Safety Equipment Sweden Ab	Systeme de commande de respirateurs a adduction d'air filtre avec ensemble moteur
WO1998024516A1 (fr) *	1996-12-07	1998-06-11	T.E.M. Technische Entwicklung Und Management Gmbh	Ameliorations concernant les masques a gaz
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
WO2000054841A1 (fr)	1999-03-17	2000-09-21	T.E.M.! Technische Entwicklungen Und Management Gmbh	Dispositif capteur et procede pour la detection de gaz ou de vapeurs contenus dans l'air
WO2000054840A1 (fr)	1999-03-17	2000-09-21	T.E.M.! Technische Entwicklungen Und Management Gmbh	Procede et dispositif capteur pour la detection de gaz ou de vapeurs contenus dans l'air
DE19911867A1 (de) *	1999-03-17	2000-10-19	T E M Tech Entwicklungen Und M	Sensorsystem zur Detektion von Gasen und Dämpfen in Luft
DE19911867C2 (de) *	1999-03-17	2002-02-21	T E M Techn Entwicklungen Und	Sensorsystem zur Detektion von Gasen und Dämpfen in Luft

Also Published As

Publication number	Publication date
ATE97824T1 (de)	1993-12-15
DE59003710D1 (de)	1994-01-13
DE4009107A1 (de)	1991-09-26
NO905329D0 (no)	1990-12-10
DE4009107C2 (fr)	1993-06-09
NO905329L (no)	1991-09-23
EP0447619B1 (fr)	1993-12-01

Publication	Publication Date	Title
DE3613512A1 (de)	1987-10-29	Warneinrichtung zur anzeige des erschoepfungszustandes eines schadgase zurueckhaltenden gasfilters
DE68909693T2 (de)	1994-02-03	Angetriebenes Atemgerät.
DE69634169T2 (de)	2006-05-11	Strombetriebenes luftreinigungs-beatmungs-management-system
DE69533138T2 (de)	2005-06-16	Expositionsmelder
DE69015622T2 (de)	1995-05-11	Verfahren zum nachweis von in der luft suspendierten allergenen.
EP0447619B1 (fr)	1993-12-01	Système d'alarme avec une cellule de mesure et signalisation d'alarme pour indiquer l'état d'usure d'un filtre à gaz
DE60300172T2 (de)	2005-11-03	Vorrichtung und Methode zur Messung von Atemalkohol
DE60209279T2 (de)	2006-08-10	Tragbare Gasalarmvorrichtung
DE69519477T2 (de)	2001-07-12	Expositionsmelder mit alarmsignalvorrichtung
DE60223527T2 (de)	2008-12-04	Verfahren und messgerät zur messung der stickoxidkonzentration in der ausatemluft
CN210639150U (zh)	2020-05-29	多参数环境空气质量在线监测仪
DE2252373B2 (de)	1976-10-28	Sicherheitsvorrichtung zum verhindern des benutzens eines kraftfahrzeuges durch einen unter alkoholeinfluss stehenden fahrer
DE69718958T2 (de)	2003-06-18	Überwachungsanordnung
EP1165186B1 (fr)	2007-02-21	Procede et dispositif capteur pour la detection de gaz ou de vapeurs contenus dans l'air
DE202011109258U1 (de)	2012-02-13	Atemalkohol-Analysegerät
DE2428352A1 (de)	1976-01-02	Anordnung zur bestimmung der alkoholkonzentration der (tiefen) lungenluft
DE2800638A1 (de)	1978-07-27	Messgeraet zur bestimmung des alkoholgehaltes in dem atem einer versuchsperson
DE19847707A1 (de)	2000-04-20	Verfahren und Vorrichtung zur Bestimmung von O¶2¶ und N¶2¶O in Gasgemischen
DE19911869B4 (de)	2004-03-25	Neuartige Atemschutzmaske mit Sensor-Mikrosystem und Verfahren zum Betreiben derselben
DE2337988B2 (de)	1978-11-30	Vorrichtung zur Bestimmung des Alkoholgehaltes in der Atemluft
DE2909578A1 (de)	1979-10-31	System zur erfassung der zeigerstellung eines messgeraetes
DE2462607C2 (de)	1988-09-08	Atemalkoholmeßgerät
WO2024218085A1 (fr)	2024-10-24	Dispositif de mesure portable pour mesurer une charge de poussière fine
DE1163153B (de)	1964-02-13	Warnvorrichtung fuer Druckgasatemschutzgeraete
CN212845258U (zh)	2021-03-30	一种车载甲醛检测装置

Legal Events

Date	Code	Title	Description
1991-08-09	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
1991-09-25	17P	Request for examination filed	Effective date: 19901122
1991-09-25	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL
1993-05-05	17Q	First examination report despatched	Effective date: 19930318
1993-10-15	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1993-12-01	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL
1993-12-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19931201
1993-12-01	REF	Corresponds to:	Ref document number: 97824 Country of ref document: AT Date of ref document: 19931215 Kind code of ref document: T
1994-01-13	REF	Corresponds to:	Ref document number: 59003710 Country of ref document: DE Date of ref document: 19940113
1994-02-16	GBT	Gb: translation of ep patent filed (gb section 77(6)(a)/1977)	Effective date: 19940114
1994-02-23	ITF	It: translation for a ep patent filed
1994-03-01	REG	Reference to a national code	Ref country code: ES Ref legal event code: BA2A
1994-04-01	ET	Fr: translation filed
1994-04-28	REG	Reference to a national code	Ref country code: GR Ref legal event code: FG4A Free format text: 3010719
1994-10-06	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1994-10-06	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1994-11-08	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: AT Effective date: 19941108
1994-11-09	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19941109
1994-11-23	26N	No opposition filed
1994-11-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19941130 Ref country code: LI Effective date: 19941130 Ref country code: CH Effective date: 19941130
1995-07-31	REG	Reference to a national code	Ref country code: CH Ref legal event code: PL Ref country code: GR Ref legal event code: MM2A Free format text: 3010719
1995-08-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DE Effective date: 19950801
1995-11-03	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 19951103 Year of fee payment: 6
1995-11-16	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: BE Payment date: 19951116 Year of fee payment: 6
1995-11-20	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 19951120 Year of fee payment: 6
1995-11-30	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: NL Payment date: 19951130 Year of fee payment: 6
1996-11-08	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GB Effective date: 19961108
1996-11-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: BE Effective date: 19961130
1997-05-01	REG	Reference to a national code	Ref country code: ES Ref legal event code: FA2A Effective date: 19970325
1997-05-31	BERE	Be: lapsed	Owner name: AUERGESELLSCHAFT G.M.B.H. Effective date: 19961130
1997-06-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: NL Effective date: 19970601
1997-06-25	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 19961108
1997-07-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Effective date: 19970731
1997-08-01	NLV4	Nl: lapsed or anulled due to non-payment of the annual fee	Effective date: 19970601
1997-09-26	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST
2005-11-08	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;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20051108