SE7908338L - Breathing mask - Google Patents

Breathing mask

Info

Publication number
SE7908338L
SE7908338L SE7908338A SE7908338A SE7908338L SE 7908338 L SE7908338 L SE 7908338L SE 7908338 A SE7908338 A SE 7908338A SE 7908338 A SE7908338 A SE 7908338A SE 7908338 L SE7908338 L SE 7908338L
Authority
SE
Sweden
Prior art keywords
pressure chamber
port
valve
user
spring
Prior art date
Application number
SE7908338A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE428759B (en
Inventor
S Ekstrom
H Wettergren
Original Assignee
Aga Ab
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 Aga Ab filed Critical Aga Ab
Priority to SE7908338A priority Critical patent/SE428759B/en
Priority to FR8021319A priority patent/FR2466996B1/en
Priority to GB8032209A priority patent/GB2061117B/en
Priority to JP14182280A priority patent/JPS5660573A/en
Priority to DE19803038128 priority patent/DE3038128C2/en
Publication of SE7908338L publication Critical patent/SE7908338L/en
Publication of SE428759B publication Critical patent/SE428759B/en

Links

Classifications

    • 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
    • A62B9/02—Valves
    • A62B9/022—Breathing demand regulators

Abstract

A respirator mask has a valve 11 for admitting breathing gas and a pressure chamber 8 between a breathing space 9 in front of the user's respiratory organs and the surrounding atmosphere. The purpose is to set up a gauge pressure in front of the user's respiratory organs during the inhalation phase as well as during the exhalation phase. Pressure chamber 8 is defined by two dish-shaped ports 12, 13 (port 12 being connected by holes 14 to space 9) and by a diaphragm 7. Port 13 is forced downwards by a spring 19. When the user inhales, pressure chamber 8 moves downward under the action of spring 19 and diaphragm 7 and pivots an arm 28 which causes the valve 11 to open. When the user exhales, pressure chamber 8 moves upwards and closes valve 11, port 12 abuts against flange 18, and port 13 is forced further upwards against spring 19 to allow gas to escape to the outside. A detent unit 31 may be present to push pressure chamber 8 upwards and keep valve 11 closed. <IMAGE>
SE7908338A 1979-10-09 1979-10-09 Breathing mask SE428759B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE7908338A SE428759B (en) 1979-10-09 1979-10-09 Breathing mask
FR8021319A FR2466996B1 (en) 1979-10-09 1980-10-06 RESPIRATORY MASK WITH BREATHING VALVE
GB8032209A GB2061117B (en) 1979-10-09 1980-10-07 Respirator mask
JP14182280A JPS5660573A (en) 1979-10-09 1980-10-08 Respirator
DE19803038128 DE3038128C2 (en) 1979-10-09 1980-10-09 Breathing mask

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7908338A SE428759B (en) 1979-10-09 1979-10-09 Breathing mask

Publications (2)

Publication Number Publication Date
SE7908338L true SE7908338L (en) 1981-04-10
SE428759B SE428759B (en) 1983-07-25

Family

ID=20339006

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7908338A SE428759B (en) 1979-10-09 1979-10-09 Breathing mask

Country Status (5)

Country Link
JP (1) JPS5660573A (en)
DE (1) DE3038128C2 (en)
FR (1) FR2466996B1 (en)
GB (1) GB2061117B (en)
SE (1) SE428759B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT216049Z2 (en) * 1988-12-29 1991-04-26 Amf Mares Spa AUTOMATIC DISPENSER FOR SELF-BREAKING RATORS

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2760507A (en) * 1952-02-07 1956-08-28 Scott Aviation Corp Demand pressure regulator
SE335826B (en) * 1970-03-05 1971-06-07 Aga Ab
JPS5142877A (en) * 1974-10-09 1976-04-12 Taguchi Keihan Jugengaisha WARIDASHIKAITENGATATORUKUAKUCHUEETAA
DE2620170A1 (en) * 1976-05-07 1977-11-17 Draegerwerk Ag Lung action controlled air supply respirator - has dosing valve assembly controlled by lever attached to diaphragm
DE2645675C3 (en) * 1976-10-09 1981-09-17 Drägerwerk AG, 2400 Lübeck Ventilation valve for ventilators
DE2735275A1 (en) * 1977-08-05 1979-02-15 Matter Gmbh Kg Kurt Compressed air respirator inhaling valve - has springs acting in closing direction with optional opening direction operation

Also Published As

Publication number Publication date
GB2061117B (en) 1984-07-25
DE3038128A1 (en) 1981-04-30
FR2466996A1 (en) 1981-04-17
FR2466996B1 (en) 1985-11-22
JPS5660573A (en) 1981-05-25
GB2061117A (en) 1981-05-13
DE3038128C2 (en) 1984-07-05
SE428759B (en) 1983-07-25

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