NZ240850A - Gas helmet: air supply selectively switchable between compressed air supply and air filter - Google Patents
Gas helmet: air supply selectively switchable between compressed air supply and air filterInfo
- Publication number
- NZ240850A NZ240850A NZ240850A NZ24085091A NZ240850A NZ 240850 A NZ240850 A NZ 240850A NZ 240850 A NZ240850 A NZ 240850A NZ 24085091 A NZ24085091 A NZ 24085091A NZ 240850 A NZ240850 A NZ 240850A
- Authority
- NZ
- New Zealand
- Prior art keywords
- air
- volume
- safety helmet
- isolated volume
- pressure
- Prior art date
Links
- 210000003128 head Anatomy 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 210000001061 forehead Anatomy 0.000 claims description 4
- 230000001419 dependent effect Effects 0.000 claims description 2
- 241001125671 Eretmochelys imbricata Species 0.000 claims 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 7
- 230000002411 adverse Effects 0.000 description 6
- 238000012856 packing Methods 0.000 description 4
- 238000011109 contamination Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 210000000887 face Anatomy 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000126 substance Substances 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
- A62B18/04—Gas helmets
Landscapes
- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Helmets And Other Head Coverings (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB909026311A GB9026311D0 (en) | 1990-12-04 | 1990-12-04 | Improvements in or relating to safety helmets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NZ240850A true NZ240850A (en) | 1993-09-27 |
Family
ID=10686429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NZ240850A NZ240850A (en) | 1990-12-04 | 1991-12-04 | Gas helmet: air supply selectively switchable between compressed air supply and air filter |
Country Status (8)
| Country | Link |
|---|---|
| CN (1) | CN1063049A (Direct) |
| AU (1) | AU8940991A (Direct) |
| GB (1) | GB9026311D0 (Direct) |
| IN (1) | IN180245B (Direct) |
| MX (1) | MX9102372A (Direct) |
| NZ (1) | NZ240850A (Direct) |
| WO (1) | WO1992010237A1 (Direct) |
| ZA (1) | ZA919486B (Direct) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5640952A (en) * | 1995-09-01 | 1997-06-24 | Swann; Linsey J. | Personal emergency breathing system for supplied air respirators |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR857420A (fr) * | 1939-07-06 | 1940-09-12 | Masque à gaz | |
| US3202150A (en) * | 1962-06-11 | 1965-08-24 | Scott Aviation Corp | Filter attachment for a pressurized breathing apparatus |
| CH614379A5 (en) * | 1977-03-14 | 1979-11-30 | Franco Carloni | Fire protection helmet for motor racing events having devices permitting respiration |
| GB2182568B (en) * | 1985-09-13 | 1988-12-29 | Catalyst Technology U K Limite | Improvements in or relating to safety helmets |
-
1990
- 1990-12-04 GB GB909026311A patent/GB9026311D0/en active Pending
-
1991
- 1991-11-27 WO PCT/GB1991/002097 patent/WO1992010237A1/en not_active Ceased
- 1991-11-27 AU AU89409/91A patent/AU8940991A/en not_active Abandoned
- 1991-12-02 ZA ZA919486A patent/ZA919486B/xx unknown
- 1991-12-03 IN IN886MA1991 patent/IN180245B/en unknown
- 1991-12-04 NZ NZ240850A patent/NZ240850A/en unknown
- 1991-12-04 CN CN91112799A patent/CN1063049A/zh active Pending
- 1991-12-04 MX MX9102372A patent/MX9102372A/es not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| IN180245B (Direct) | 1998-01-17 |
| GB9026311D0 (en) | 1991-01-23 |
| WO1992010237A1 (en) | 1992-06-25 |
| CN1063049A (zh) | 1992-07-29 |
| MX9102372A (es) | 1992-09-01 |
| ZA919486B (en) | 1992-11-25 |
| AU8940991A (en) | 1992-07-08 |
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