SE9300678D0 - GAS-MASK - Google Patents

GAS-MASK

Info

Publication number
SE9300678D0
SE9300678D0 SE9300678A SE9300678A SE9300678D0 SE 9300678 D0 SE9300678 D0 SE 9300678D0 SE 9300678 A SE9300678 A SE 9300678A SE 9300678 A SE9300678 A SE 9300678A SE 9300678 D0 SE9300678 D0 SE 9300678D0
Authority
SE
Sweden
Prior art keywords
mask
air
channel
branches
exhalation
Prior art date
Application number
SE9300678A
Other languages
Swedish (sv)
Other versions
SE9300678L (en
SE506100C2 (en
Inventor
Jyrki Jaervinen
Original Assignee
Kemira Oy
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 Kemira Oy filed Critical Kemira Oy
Publication of SE9300678D0 publication Critical patent/SE9300678D0/en
Publication of SE9300678L publication Critical patent/SE9300678L/en
Publication of SE506100C2 publication Critical patent/SE506100C2/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
    • A62B18/02—Masks
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B9/00—Component parts for respiratory or breathing apparatus
    • A62B9/003—Means for influencing the temperature or humidity of the breathing gas

Abstract

A gas mask (1) comprises a set of inlet channels (4) for incoming breathing air, a filter (10) and a separate exhalation channel (5) for exhalation air. The channels (4) comprise in lot branches (6, 7) directed to the sides of the mask, of which one can be provided with a filter (10), if desired, and the other one can be closed by a closure (11). Using this arrangement, the same mask can be provided to suit either a right-handed or a left-handed wearer. The branches (6, 7) are joined together on the vertical center line of the mask into one vertical channel (8) which divides the incoming air essentially evenly to the area of windows (3) of the mask. The windows are maintained clean from condensing humidity with the aid of the air flow. When branches (6, 7) are joined together into one channel (8) directly on top of channel (5), the exhalation air can be arranged to heat the incoming air with the aid of a heat-conducting metal partition 14. <IMAGE>
SE9300678A 1992-03-02 1993-03-01 Gas-mask SE506100C2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI920940A FI101198B (en) 1992-03-02 1992-03-02 Gas mask

Publications (3)

Publication Number Publication Date
SE9300678D0 true SE9300678D0 (en) 1993-03-01
SE9300678L SE9300678L (en) 1993-09-03
SE506100C2 SE506100C2 (en) 1997-11-10

Family

ID=8534855

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9300678A SE506100C2 (en) 1992-03-02 1993-03-01 Gas-mask

Country Status (4)

Country Link
DE (1) DE4305570B4 (en)
FI (1) FI101198B (en)
GB (1) GB2264649B (en)
SE (1) SE506100C2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI20011992A (en) 2001-10-12 2003-04-13 Euromaski Oy Protective device
CA2422025A1 (en) * 2002-03-12 2003-09-12 Bombardier Inc. Helmet with breathing mask air passages
EP3479876A1 (en) * 2017-11-02 2019-05-08 Koninklijke Philips N.V. Breathing mask
WO2019043118A1 (en) * 2017-09-01 2019-03-07 Koninklijke Philips N.V. Breathing mask

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB530285A (en) * 1939-02-13 1940-12-09 Otto Heinrich Draeger Improvements in or relating to gas masks for horses
CH600898A5 (en) * 1975-10-10 1978-06-30 Luwa Ag
EP0087909B1 (en) * 1982-02-26 1987-06-24 Avon Industrial Polymers Limited Respirator air guide
US4595003A (en) * 1983-10-21 1986-06-17 The United States Of America As Represented By The Secretary Of The Army Protective mask for airborne toxic substances
US4671268A (en) * 1985-09-23 1987-06-09 Hunt Patrick T Cold weather breathing mask

Also Published As

Publication number Publication date
FI101198B1 (en) 1998-05-15
DE4305570A1 (en) 1993-09-09
FI920940A0 (en) 1992-03-02
FI920940A (en) 1993-09-03
SE9300678L (en) 1993-09-03
DE4305570B4 (en) 2004-07-01
SE506100C2 (en) 1997-11-10
FI101198B (en) 1998-05-15
GB2264649A (en) 1993-09-08
GB9304150D0 (en) 1993-04-21
GB2264649B (en) 1995-12-06

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Legal Events

Date Code Title Description
NUG Patent has lapsed