EP0246444A3 - Warning device for indicating the state of exhaustion of a gas filter - Google Patents

Warning device for indicating the state of exhaustion of a gas filter Download PDF

Info

Publication number
EP0246444A3
EP0246444A3 EP87105362A EP87105362A EP0246444A3 EP 0246444 A3 EP0246444 A3 EP 0246444A3 EP 87105362 A EP87105362 A EP 87105362A EP 87105362 A EP87105362 A EP 87105362A EP 0246444 A3 EP0246444 A3 EP 0246444A3
Authority
EP
European Patent Office
Prior art keywords
exhaustion
indicating
state
warning device
gas filter
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
EP87105362A
Other languages
German (de)
Other versions
EP0246444B1 (en
EP0246444A2 (en
Inventor
Jurgen Coym
Michael Freidank
Axel Dr. Schubert
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.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6299213&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0246444(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Auergesellschaft GmbH filed Critical Auergesellschaft GmbH
Publication of EP0246444A2 publication Critical patent/EP0246444A2/en
Publication of EP0246444A3 publication Critical patent/EP0246444A3/en
Application granted granted Critical
Publication of EP0246444B1 publication Critical patent/EP0246444B1/en
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
    • A62B18/088—Devices for indicating filter saturation

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
EP87105362A 1986-04-22 1987-04-10 Warning device for indicating the state of exhaustion of a gas filter Expired - Lifetime EP0246444B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3613512 1986-04-22
DE3613512A DE3613512C3 (en) 1986-04-22 1986-04-22 Electrical warning device for displaying the state of exhaustion of a gas filter which retains harmful gases

Publications (3)

Publication Number Publication Date
EP0246444A2 EP0246444A2 (en) 1987-11-25
EP0246444A3 true EP0246444A3 (en) 1990-08-22
EP0246444B1 EP0246444B1 (en) 1993-02-03

Family

ID=6299213

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87105362A Expired - Lifetime EP0246444B1 (en) 1986-04-22 1987-04-10 Warning device for indicating the state of exhaustion of a gas filter

Country Status (3)

Country Link
US (1) US4873970A (en)
EP (1) EP0246444B1 (en)
DE (2) DE3613512C3 (en)

Families Citing this family (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3818052A1 (en) * 1988-05-27 1989-12-07 Geraetebau Gmbh RESPIRATORY MASK
DE3838531A1 (en) * 1988-11-14 1990-05-17 Wolfgang Gerigk Device for the detection of infected and poisoned breathing air
DE4009107A1 (en) * 1990-03-21 1991-09-26 Auergesellschaft Gmbh WARNING DEVICE WITH A MEASURING CELL AND ALARMS TO INDICATE THE DEFAULT OF A GAS FILTER
CA2020503C (en) * 1990-07-05 1998-11-17 Jacques Lesage Chemical cartridge for protective respiratory mask
FR2677765B1 (en) * 1991-06-17 1994-06-17 Commissariat Energie Atomique PROCESS FOR MONITORING THE SATURATION STATE OF A FILTERED ACTIVE CARBON MASS OF A FILTRATION DEVICE AND RESPIRATORY MASK CARTRIDGE USING THE SAME.
DE4132680C2 (en) * 1991-10-01 1994-02-10 Draegerwerk Ag Respirator mask with inner half mask and pollutant indicator
DE4133235A1 (en) * 1991-10-07 1993-04-08 Draegerwerk Ag FAN-SUPPORTED BREATHING DEVICE WITH AN ADD-ON CONTROL UNIT
US5117821A (en) * 1991-10-18 1992-06-02 White George M Hunting mask with breath odor control system
DE4214239C2 (en) * 1992-04-30 1994-06-16 Draegerwerk Ag RESPIRATORY MASK WITH AN INDICATOR
US5338430A (en) * 1992-12-23 1994-08-16 Minnesota Mining And Manufacturing Company Nanostructured electrode membranes
CA2172719A1 (en) 1993-10-01 1995-04-13 Joyce B. Palazzotto Speech transmission adaptor for use with a respirator mask
US5906203A (en) * 1994-08-01 1999-05-25 Safety Equipment Sweden Ab Breathing apparatus
TW287952B (en) * 1994-08-31 1996-10-11 Lifepro Inc
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
US5856198A (en) * 1994-12-28 1999-01-05 Extraction Systems, Inc. Performance monitoring of gas-phase air filters
US5676133A (en) * 1995-06-14 1997-10-14 Apotheus Laboratories, Inc. Expiratory scavenging method and apparatus and oxygen control system for post anesthesia care patients
US5878743A (en) * 1996-09-23 1999-03-09 Respironics, Inc. Pressure sensitive flow control valve
US6003511A (en) * 1996-11-18 1999-12-21 Medlis Corp. Respiratory circuit terminal for a unilimb respiratory device
DE19650897A1 (en) * 1996-12-07 1998-06-10 T E M Tech Entwicklung Und Man Apparatus and method for increasing the safety of respiratory masks
US6096267A (en) * 1997-02-28 2000-08-01 Extraction Systems, Inc. System for detecting base contaminants in air
DE69816277T2 (en) * 1997-02-28 2004-06-03 Extraction Systems, Inc., Franklin SYSTEM FOR THE DETECTION OF AMINES AND OTHER BASIC MOLECULAR SUB-CLEANING IN A GAS
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
US5937852A (en) * 1997-04-08 1999-08-17 The Board Of Regents Of The University Of Texas System Apparatus for induction of inhaled pharmacological agent by a pediatric patient
US6207460B1 (en) 1999-01-14 2001-03-27 Extraction Systems, Inc. Detection of base contaminants in gas samples
EP1165186B1 (en) 1999-03-17 2007-02-21 T.E.M.! Technische Entwicklungen und Management GmbH Method and sensor device for detecting gases or fumes in air
DE19911867C2 (en) * 1999-03-17 2002-02-21 T E M Techn Entwicklungen Und Sensor system for the detection of gases and vapors in air
US6761169B2 (en) * 2000-08-17 2004-07-13 Vase Technology Bi/multi-directional filter cartridge and filter platform for mounting the cartridge thereon
US20040182394A1 (en) * 2003-03-21 2004-09-23 Alvey Jeffrey Arthur Powered air purifying respirator system and self contained breathing apparatus
US20060048777A1 (en) * 2003-03-21 2006-03-09 Interspiro, Inc. Apparatus and method for providing breathable air and bodily protection in a contaminated environment
US7647927B2 (en) * 2003-08-22 2010-01-19 Wilcox Industries Corp. Self-contained breathing system
US7100423B2 (en) * 2003-09-04 2006-09-05 Midwest Research Institute Method and apparatus for monitoring particles in a flowing gas
US20100139661A1 (en) * 2003-12-18 2010-06-10 Scott Technologies, Inc. Air breathing hose with integrated electrical wiring
US20070105494A1 (en) * 2005-11-08 2007-05-10 Esco Micro Pte Ltd Ductless fume hood with improved filter monitoring system and extended filter life
US8225782B2 (en) * 2009-05-22 2012-07-24 3M Innovative Properties Company Filter cartridge having location-registered view window for end-of-service-life-indicator (ESLI)
US8365723B2 (en) * 2009-05-22 2013-02-05 3M Innovative Properties Company Filter cartridge having cone of visibility for end-of-service-life-indicator (ESLI)
US8336543B2 (en) * 2009-05-22 2012-12-25 3M Innovative Properties Company Filter cartridge having cover for masking service life indicator
US8372186B2 (en) * 2009-08-14 2013-02-12 Gregory J. Dobbyn Ductless fume hood gas monitoring and detection system
WO2011104635A1 (en) * 2010-02-26 2011-09-01 Intertechnique Method for determining partial pressure of a gaseous constituent and regulator of breathing mask for aircraft occupant
WO2011116428A1 (en) 2010-03-25 2011-09-29 Resmed Paris Sas Breathable gas inlet control device for respiratory treatment apparatus
CN102834711A (en) 2010-04-02 2012-12-19 3M创新有限公司 Filter systems including optical analyte sensors and optical readers
CN103068465B (en) * 2010-08-06 2017-08-29 斯科特科技股份有限公司 Chemistry and environment inductor are integrated into the method and apparatus in air cleaning filter by reusable sensor post
US8616205B2 (en) 2010-10-06 2013-12-31 Honeywell International Inc. Respirator with end-of-service-life detection
US9011584B2 (en) * 2011-08-25 2015-04-21 Honeywell International Inc. End of service life indicator for respirator
US9079049B2 (en) 2011-11-02 2015-07-14 Honeywell International Inc. Respirators with a sacrificial cartridge for end of service life indication
JP6242340B2 (en) 2011-12-12 2017-12-06 スリーエム イノベイティブ プロパティズ カンパニー End-of-life indication system for multilayer filter cartridges
US9283411B2 (en) 2013-04-19 2016-03-15 Honeywell International Inc. Gas sensing drift compensation using gas self-referencing for end of service life indication for respirators
EP2875847B1 (en) * 2013-11-26 2020-03-11 Naphtachimie S.A. Secure device for respiratory protection
US11235182B2 (en) 2014-09-05 2022-02-01 Honeywell International Inc. End of service life indicator for disposal mask
ITUB201594612U1 (en) * 2015-11-17 2017-05-17 Spasciani S P A PERSONAL PROTECTIVE EQUIPMENT FOR RESPIRATORY TRACKS PROVIDED WITH ALARM SYSTEM.
GB2579210A (en) * 2018-11-23 2020-06-17 World Wide Welding Ltd Powered air personal respirator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR843542A (en) * 1937-09-29 1939-07-05 Pirelli Device for signaling exhaustion of gas filters
DE2529058A1 (en) * 1975-06-30 1977-02-03 Richard A Wallace Electric heat-sensitive alarm for detecting toxic gases - is for use in chemical installations and mines and with breathing apparatus
US4051006A (en) * 1976-03-22 1977-09-27 Beckman Instruments, Inc. Portable electrochemical cell structure

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1320935A (en) * 1919-11-04 schwartz
GB170404A (en) * 1920-07-20 1921-10-20 Leonard Angelo Levy A carbon monoxide respirator
US1474205A (en) * 1921-10-11 1923-11-13 Mine Safety Appliances Co Gas mask
AT155693B (en) * 1934-09-21 1939-03-10 Pirelli Device for displaying the exhaustion status of gas filters and protection devices.
DE1721541U (en) * 1954-05-22 1956-05-03 Draegerwerk Ag DEVICE FOR INDICATING THE EXHAUST OF A BREATHING FILTER.
DE1120774B (en) * 1960-04-26 1961-12-28 Mine Safety Appliances Co Detector cell for measuring the concentration of a gas component
US3902485A (en) * 1974-02-08 1975-09-02 Richard A Wallace Chemically activated warning system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR843542A (en) * 1937-09-29 1939-07-05 Pirelli Device for signaling exhaustion of gas filters
DE2529058A1 (en) * 1975-06-30 1977-02-03 Richard A Wallace Electric heat-sensitive alarm for detecting toxic gases - is for use in chemical installations and mines and with breathing apparatus
US4051006A (en) * 1976-03-22 1977-09-27 Beckman Instruments, Inc. Portable electrochemical cell structure

Also Published As

Publication number Publication date
EP0246444B1 (en) 1993-02-03
DE3783944D1 (en) 1993-03-18
EP0246444A2 (en) 1987-11-25
DE3613512C3 (en) 1994-09-29
US4873970A (en) 1989-10-17
DE3613512A1 (en) 1987-10-29
DE3613512C2 (en) 1994-09-29

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