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NO905329L - ALARM DEVICE WITH A MEASURING CELL AND AN ALARM SENSOR FOR INDICATING THE STATE OF A GAS FILTER - Google Patents

ALARM DEVICE WITH A MEASURING CELL AND AN ALARM SENSOR FOR INDICATING THE STATE OF A GAS FILTER

Info

Publication number
NO905329L
NO905329L NO90905329A NO905329A NO905329L NO 905329 L NO905329 L NO 905329L NO 90905329 A NO90905329 A NO 90905329A NO 905329 A NO905329 A NO 905329A NO 905329 L NO905329 L NO 905329L
Authority
NO
Norway
Prior art keywords
gas filter
state
measuring cell
alarm
indicating
Prior art date
Application number
NO90905329A
Other languages
Norwegian (no)
Other versions
NO905329D0 (en
Inventor
Detlef Hoffmann
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
Application filed by Auergesellschaft Gmbh filed Critical Auergesellschaft Gmbh
Publication of NO905329D0 publication Critical patent/NO905329D0/en
Publication of NO905329L publication Critical patent/NO905329L/en

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

Abstract

The invention describes a warning system with a measuring cell and alarm monitors for indicating the state of exhaustion of a gas filter connected to a breathing connection, the warning system being constructed as a unit separate from the gas filter. The system comprises a) a warning device (1) which is arranged on a breathing tube (8), which is connected behind the gas filter (11) in the flow direction, and connected to this breathing tube in terms of flow, b) an alarm monitor which is constructed as a mechanical device (6) which has a pivotable hinged piece (14) which can be disengaged in the state of exhaustion of the gas filter (11) measured by the measuring cell, and seals the breathing tube (8) in the direction of flow, and c) a hinged piece (14), which has an opening (17) through which the wearer of the equipment breathes, a perceptible increase in the inhalation resistance being an index of the imminent state of exhaustion of the gas filter (11). <IMAGE>
NO90905329A 1990-03-21 1990-12-10 ALARM DEVICE WITH A MEASURING CELL AND AN ALARM SENSOR FOR INDICATING THE STATE OF A GAS FILTER NO905329L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4009107A DE4009107A1 (en) 1990-03-21 1990-03-21 WARNING DEVICE WITH A MEASURING CELL AND ALARMS TO INDICATE THE DEFAULT OF A GAS FILTER

Publications (2)

Publication Number Publication Date
NO905329D0 NO905329D0 (en) 1990-12-10
NO905329L true NO905329L (en) 1991-09-23

Family

ID=6402758

Family Applications (1)

Application Number Title Priority Date Filing Date
NO90905329A NO905329L (en) 1990-03-21 1990-12-10 ALARM DEVICE WITH A MEASURING CELL AND AN ALARM SENSOR FOR INDICATING THE STATE OF A GAS FILTER

Country Status (4)

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

Families Citing this family (9)

* 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
US5666949A (en) * 1994-10-24 1997-09-16 Minnesota Mining And Manufacturing Company Exposure indicator with continuous alarm signal indicating multiple conditions
US5659296A (en) * 1994-10-24 1997-08-19 Minnesota Mining And Manufacturing Company Exposure indicating apparatus
DE29504087U1 (en) * 1995-03-10 1995-08-10 Palocz-Andresen, Michael, Dr.-Ing.habil., 20459 Hamburg Micro measuring device for the detection of the loading of filters
AUPN191095A0 (en) * 1995-03-23 1995-04-27 Safety Equipment Australia Pty Ltd Positive air-purifying respirator management system
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
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
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
JP2002539441A (en) 1999-03-17 2002-11-19 テー・エー・エム！テクニシェ・エントビクルンゲン・ウント・メニジメント・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング Sensor and detection method for gas and smoke contained in air

Family Cites Families (5)

* 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
DE670550C (en) * 1929-04-10 1939-01-20 Bernh Draeger Oxygen breathing apparatus
DE693685C (en) * 1935-11-19 1940-07-17 Auergesellschaft Akt Ges Warning device for oxygen breathing apparatus
FR1353343A (en) * 1963-04-09 1964-02-21 Alarm for respiratory protection devices
DE3613512C3 (en) * 1986-04-22 1994-09-29 Auergesellschaft Gmbh Electrical warning device for displaying the state of exhaustion of a gas filter which retains harmful gases

Also Published As

Publication number Publication date
EP0447619B1 (en) 1993-12-01
DE59003710D1 (en) 1994-01-13
DE4009107A1 (en) 1991-09-26
DE4009107C2 (en) 1993-06-09
ATE97824T1 (en) 1993-12-15
EP0447619A1 (en) 1991-09-25
NO905329D0 (en) 1990-12-10

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