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GB1554542A - Respirator cartridges - Google Patents

Respirator cartridges

Info

Publication number
GB1554542A
GB1554542A GB7178A GB7178A GB1554542A GB 1554542 A GB1554542 A GB 1554542A GB 7178 A GB7178 A GB 7178A GB 7178 A GB7178 A GB 7178A GB 1554542 A GB1554542 A GB 1554542A
Authority
GB
United Kingdom
Prior art keywords
respirator cartridges
respirator
cartridges
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
Application number
GB7178A
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.)
American Optical Corp
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
Priority claimed from GB717871A external-priority patent/GB1381710A/en
Priority to US75710577A priority Critical
Application filed by American Optical Corp filed Critical American Optical Corp
Publication of GB1554542A publication Critical patent/GB1554542A/en
Application status is Expired legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00Breathing 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
    • A62B18/08Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
    • A62B18/088Devices for indicating filter saturation
GB7178A 1977-01-05 1978-01-03 Respirator cartridges Expired GB1554542A (en)

Priority Applications (1)

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

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB717871A GB1381710A (en) 1971-03-18 1971-03-18 Sulphonation of fatty acids
NL7203459A NL7203459A (en) 1971-03-18 1972-03-16
FR7209559A FR2178284A5 (en) 1971-03-18 1972-03-17
DE19722213155 DE2213155A1 (en) 1971-03-18 1972-03-17

Publications (1)

Publication Number Publication Date
GB1554542A true GB1554542A (en) 1979-10-24

Family

ID=25046371

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7178A Expired GB1554542A (en) 1977-01-05 1978-01-03 Respirator cartridges

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)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2168259A (en) * 1984-12-14 1986-06-18 Draegerwerk Ag A filter apparatus having a monitor for indicating the state of exhaustion of the filter
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

Families Citing this family (10)

* 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
DE3610492C2 (en) * 1986-03-27 1988-02-11 Draegerwerk Ag, 2400 Luebeck, De
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
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
CN105102103B (en) 2013-03-15 2017-08-18 3M创新有限公司 End of life indication system for stratification cartridge

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2168259A (en) * 1984-12-14 1986-06-18 Draegerwerk Ag A filter apparatus having a monitor for indicating the state of exhaustion of the filter
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

Also Published As

Publication number Publication date
JPS5385993A (en) 1978-07-28
JPS6218156U (en) 1987-02-03
DE2758603A1 (en) 1978-07-20
HK22181A (en) 1981-05-29
CA1100419A (en) 1981-05-05
BR7800046A (en) 1978-08-15
CA1100419A1 (en)

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee