DE301747C - - Google Patents
Info
- Publication number
- DE301747C DE301747C DENDAT301747D DE301747DA DE301747C DE 301747 C DE301747 C DE 301747C DE NDAT301747 D DENDAT301747 D DE NDAT301747D DE 301747D A DE301747D A DE 301747DA DE 301747 C DE301747 C DE 301747C
- Authority
- DE
- Germany
- Prior art keywords
- mask
- gas
- face
- impermeable material
- user
- 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.)
- Active
Links
- 239000000463 material Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 5
- 239000011324 bead Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 210000001061 forehead Anatomy 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 231100000925 very toxic Toxicity 0.000 description 1
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
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Zoology (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE301747C true DE301747C (enExample) |
Family
ID=555596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT301747D Active DE301747C (enExample) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE301747C (enExample) |
-
0
- DE DENDAT301747D patent/DE301747C/de active Active
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