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BR7800046A - BREATHING CARTRIDGE AND PROCESS TO INDICATE THE END OF USER LIFE SAME - Google Patents

BREATHING CARTRIDGE AND PROCESS TO INDICATE THE END OF USER LIFE SAME

Info

Publication number
BR7800046A
BR7800046A BR7800046A BR7800046A BR7800046A BR 7800046 A BR7800046 A BR 7800046A BR 7800046 A BR7800046 A BR 7800046A BR 7800046 A BR7800046 A BR 7800046A BR 7800046 A BR7800046 A BR 7800046A
Authority
BR
Brazil
Prior art keywords
indicate
user life
life same
breathing cartridge
breathing
Prior art date
Application number
BR7800046A
Other languages
Portuguese (pt)
Inventor
J Jones
Original Assignee
American Optical Corp
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 American Optical Corp filed Critical American Optical Corp
Publication of BR7800046A publication Critical patent/BR7800046A/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)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Treating Waste Gases (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
BR7800046A 1977-01-05 1978-01-04 BREATHING CARTRIDGE AND PROCESS TO INDICATE THE END OF USER LIFE SAME BR7800046A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US75710577A 1977-01-05 1977-01-05

Publications (1)

Publication Number Publication Date
BR7800046A true BR7800046A (en) 1978-08-15

Family

ID=25046371

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7800046A BR7800046A (en) 1977-01-05 1978-01-04 BREATHING CARTRIDGE AND PROCESS TO INDICATE THE END OF USER LIFE SAME

Country Status (6)

Country Link
JP (2) JPS5385993A (en)
BR (1) BR7800046A (en)
CA (1) CA1100419A (en)
DE (1) DE2758603A1 (en)
GB (1) GB1554542A (en)
HK (1) HK22181A (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4326514A (en) * 1980-06-20 1982-04-27 Minnesota Mining And Manufacturing Company Cartridge respirator with service life indicator
US4365627A (en) * 1980-09-22 1982-12-28 The Dow Chemical Company Filter-type respirator canister
GB2119659B (en) * 1982-04-28 1985-10-02 Mine Safety Appliances Co Breathing device having irreversible moisture indicator
DE3445639C2 (en) * 1984-12-14 1987-02-12 Drägerwerk AG, 2400 Lübeck Colorimetric indicator for indicating the exhaustion status of gas filters
DE3610492A1 (en) * 1986-03-27 1987-10-01 Draegerwerk Ag RESPIRATOR
US4886058A (en) * 1988-05-17 1989-12-12 Minnesota Mining And Manufacturing Company Filter element
WO1994019056A1 (en) * 1993-02-27 1994-09-01 Paul Hartmann Ag Respiratory system protection
RU2108821C1 (en) * 1994-09-13 1998-04-20 Войсковая часть 20914 Regenerative cartridge
US5634426A (en) * 1995-02-22 1997-06-03 Tomlinson; Bruce Absorption depletion indicators for anesthetic gas administration systems
US7442237B1 (en) * 2004-09-16 2008-10-28 The United States Of America As Represented By The Secretary Of The Army Multi-agent end-of-service-life indicator for respirator filters
US8955515B2 (en) * 2009-10-23 2015-02-17 3M Innovative Properties Company Patterned chemical sensor having inert occluding layer
US9192795B2 (en) 2011-10-07 2015-11-24 Honeywell International Inc. System and method of calibration in a powered air purifying respirator
US9808656B2 (en) 2012-01-09 2017-11-07 Honeywell International Inc. System and method of oxygen deficiency warning in a powered air purifying respirator
EP2969128B1 (en) 2013-03-15 2018-11-14 3M Innovative Properties Company End of service life indicating systems for layered filter cartridges

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1725893A (en) * 1924-12-05 1929-08-27 Mine Safety Appliances Co Indicating gas-mask canister
US3966440A (en) * 1975-06-03 1976-06-29 Catalyst Research Corporation Colorimetric vinyl chloride indicator

Also Published As

Publication number Publication date
HK22181A (en) 1981-05-29
GB1554542A (en) 1979-10-24
DE2758603A1 (en) 1978-07-20
JPS6218156U (en) 1987-02-03
JPS5385993A (en) 1978-07-28
CA1100419A (en) 1981-05-05

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