BE638598A - - Google Patents
Info
- Publication number
- BE638598A BE638598A BE638598DA BE638598A BE 638598 A BE638598 A BE 638598A BE 638598D A BE638598D A BE 638598DA BE 638598 A BE638598 A BE 638598A
- Authority
- BE
- Belgium
- Prior art keywords
- valve
- cover
- edge
- frame
- tie
- Prior art date
Links
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 4
- 229920002994 synthetic fiber Polymers 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 239000011324 bead Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000004520 agglutination Effects 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 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
- A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
- A62B18/10—Valves
Landscapes
- Health & Medical Sciences (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 |
|---|---|
| BE638598A true BE638598A (de) |
Family
ID=203487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE638598D BE638598A (de) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE638598A (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5231982A (en) * | 1989-07-18 | 1993-08-03 | Her Majesty The Queen In Right Of Canada | Molded nosecup valve assembly |
| US5890234A (en) * | 1998-08-20 | 1999-04-06 | Lan; Shun-Nan | One piece water drain unit in a diver mask |
-
0
- BE BE638598D patent/BE638598A/fr unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5231982A (en) * | 1989-07-18 | 1993-08-03 | Her Majesty The Queen In Right Of Canada | Molded nosecup valve assembly |
| US5890234A (en) * | 1998-08-20 | 1999-04-06 | Lan; Shun-Nan | One piece water drain unit in a diver mask |
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