BE419867A - - Google Patents
Info
- Publication number
- BE419867A BE419867A BE419867DA BE419867A BE 419867 A BE419867 A BE 419867A BE 419867D A BE419867D A BE 419867DA BE 419867 A BE419867 A BE 419867A
- Authority
- BE
- Belgium
- Prior art keywords
- valve
- valve according
- exhalation
- connector
- sheets
- Prior art date
Links
- 230000001681 protective effect Effects 0.000 claims description 2
- 239000000470 constituent Substances 0.000 claims 2
- 239000012080 ambient air Substances 0.000 claims 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
Landscapes
- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Check Valves (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Publications (1)
Publication Number | Publication Date |
---|---|
BE419867A true BE419867A (OSRAM) |
Family
ID=82060
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE419867D BE419867A (OSRAM) |
Country Status (1)
Country | Link |
---|---|
BE (1) | BE419867A (OSRAM) |
-
0
- BE BE419867D patent/BE419867A/fr unknown
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3606814B1 (fr) | Masque de plongee ayant un corps muni d'un dispositif d'echappement d'air expire comportant une valve anti-retour | |
US6047698A (en) | Unidirectional fluid valve | |
US4610246A (en) | Snorkel valve assembly | |
EP1624937B1 (fr) | Masque respiratoire a protection hygienique | |
US3990439A (en) | Protective breathing apparatus and valve therefor | |
FR2548911A1 (fr) | Soupape combinee anti-suffocation et d'exhalation a compensation de pression | |
US5080092A (en) | Protective mask | |
CA1300468C (en) | Exhalation valve | |
US11052268B2 (en) | Respirator negative pressure fit check devices and methods | |
EP3727613B1 (fr) | Masque de plongee permettant l'equilibrage des pressions au niveau des oreilles | |
US2291603A (en) | Outlet valve for gas masks | |
US2821192A (en) | Monro | |
FR2872050A1 (fr) | Masque respiratoire a joint superealistique | |
FR2823122A1 (fr) | Masque de protection respiratoire comportant une levre additionnelle ultra-souple | |
AU2014264187B2 (en) | Butterfly type exhalation valve | |
EP3263184B1 (fr) | Masque anti-pollution | |
BE419867A (OSRAM) | ||
US20200324151A1 (en) | Valve membrane | |
BR112016027248B1 (pt) | Máscara respiratória | |
JP2007529254A5 (OSRAM) | ||
US2036850A (en) | Mask | |
EP0274963B1 (fr) | Soupape à membrane à ouverture rapide, notamment pour un vêtement de sécurité | |
US1853373A (en) | Respiratory valve | |
KR102829306B1 (ko) | 마스크용 배기밸브 장치 | |
JP7197921B2 (ja) | 作業用フェイスマスク |