SE8100510L - RESPIRATORY PROTECTIVE MASK WITH INNER HALF MASK - Google Patents
RESPIRATORY PROTECTIVE MASK WITH INNER HALF MASKInfo
- Publication number
- SE8100510L SE8100510L SE8100510A SE8100510A SE8100510L SE 8100510 L SE8100510 L SE 8100510L SE 8100510 A SE8100510 A SE 8100510A SE 8100510 A SE8100510 A SE 8100510A SE 8100510 L SE8100510 L SE 8100510L
- Authority
- SE
- Sweden
- Prior art keywords
- mask
- space
- inner half
- respiratory gas
- respiratory
- Prior art date
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
Abstract
A respiratory mask system has a main mask 1 and an inner half mask 5. A non-return valve 9 permits respiratory gas to flow only from the half mask 5 to a space 10. Thus, during exhalation, the space 10 is charged to a super-atmospheric pressure and this pressure prevents infiltration of the surrounding atmosphere into the main mask 1. As there is no permanent open connection between a respiratory gas circuit and the space, large losses of respiratory gas due to leaks should not occur. <IMAGE>
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19803015761 DE3015761A1 (en) | 1980-04-24 | 1980-04-24 | RESPIRATORY MASK WITH INTERNAL HALF MASK |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE8100510L true SE8100510L (en) | 1981-10-25 |
Family
ID=6100822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8100510A SE8100510L (en) | 1980-04-24 | 1981-01-27 | RESPIRATORY PROTECTIVE MASK WITH INNER HALF MASK |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE3015761A1 (en) |
| GB (1) | GB2074457A (en) |
| SE (1) | SE8100510L (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3230939C2 (en) * | 1982-08-20 | 1984-06-28 | Drägerwerk AG, 2400 Lübeck | Respirator with inner half mask |
| GB2182568B (en) * | 1985-09-13 | 1988-12-29 | Catalyst Technology U K Limite | Improvements in or relating to safety helmets |
| DE3724336A1 (en) * | 1987-07-23 | 1989-02-02 | Draegerwerk Ag | PROTECTIVE MASK WITH BUILT-IN SENSOR FOR MONITORING LIFE FUNCTIONS |
| US5018519B1 (en) * | 1990-08-03 | 2000-11-28 | Porter Instr Company Inc | Mask for administering an anesthetic gas to a patient |
| GB2266669B (en) * | 1992-05-05 | 1996-03-27 | Joseph Anthony Griffiths | Breathing equipment for aircrew |
| FR2742667B1 (en) * | 1995-12-21 | 1998-02-06 | Schegerin Robert | HEAD ELEMENT WITH REGULATED PRESSURE AREAS, ESPECIALLY FOR AIRCRAFT PILOTS |
| GB0203701D0 (en) * | 2002-02-16 | 2002-04-03 | Secr Defence | Respirators |
| FR2854808B1 (en) * | 2003-05-16 | 2005-11-11 | Robert Schegerin | REMOVABLE INNER MASK FILTER FOR RAPID SETTING FOR AIRCRAFT DRIVERS |
| TWI510261B (en) * | 2013-12-12 | 2015-12-01 | Univ Chienkuo Technology | Multi - stage gas volume adjustment of the auxiliary breathing device |
-
1980
- 1980-04-24 DE DE19803015761 patent/DE3015761A1/en not_active Ceased
-
1981
- 1981-01-27 SE SE8100510A patent/SE8100510L/en not_active Application Discontinuation
- 1981-04-01 GB GB8110202A patent/GB2074457A/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE3015761A1 (en) | 1981-10-29 |
| GB2074457A (en) | 1981-11-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NAV | Patent application has lapsed |
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