GB856026A - Oxygen producing canister - Google Patents
Oxygen producing canisterInfo
- Publication number
- GB856026A GB856026A GB530659A GB530659A GB856026A GB 856026 A GB856026 A GB 856026A GB 530659 A GB530659 A GB 530659A GB 530659 A GB530659 A GB 530659A GB 856026 A GB856026 A GB 856026A
- Authority
- GB
- United Kingdom
- Prior art keywords
- housing
- inlet
- chamber
- outlet
- oxygen
- 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.)
- Expired
Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title abstract 5
- 229910052760 oxygen Inorganic materials 0.000 title abstract 5
- 239000001301 oxygen Substances 0.000 title abstract 5
- 238000005192 partition Methods 0.000 abstract 7
- 239000000126 substance Substances 0.000 abstract 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 2
- XXQBEVHPUKOQEO-UHFFFAOYSA-N potassium superoxide Chemical compound [K+].[K+].[O-][O-] XXQBEVHPUKOQEO-UHFFFAOYSA-N 0.000 abstract 2
- 239000000956 alloy Substances 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 1
- 239000001569 carbon dioxide Substances 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000007717 exclusion Effects 0.000 abstract 1
- 239000004744 fabric Substances 0.000 abstract 1
- 239000011152 fibreglass Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000000155 melt Substances 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000000241 respiratory effect Effects 0.000 abstract 1
- 229910000679 solder Inorganic materials 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B21/00—Devices for producing oxygen from chemical substances for respiratory apparatus
Landscapes
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
856,026. Oxygen-producing canisters. MINE SAFETY APPLIANCES CO. Feb. 16, 1959, No. 5306/59. Class 81(2) An oxygen producing canister for respiratory apparatus comprises a housing with an inlet for exhaled air and an oxygen outlet, two chambers containing oxygen-generating material in the housing, each chamber having ari inlet and an outlet and means for connecting one chamber at a time to the exclusion of the other between the housing inlet and outlet. In an airtight housing 1 having an inlet 2 and an outlet 3 is a hollow cylinder 6 divided into two chambers by a transverse solid wall 12 and having perforated end walls 7, 8 spaced from the housing by corrugated mesh 13, 14. Oxygen generating and carbon dioxide chemical' 26, 27 e.g. potassium superoxide in the chambers is spaced from each side of the transverse wall.by perforated walls 9, 10 and corrugated mesh 11. Fibre glass cloth or mats 28, 29 are located between 'the chemical and the perforated walls. Two annular partitions 15, 16 space the cylinder from the housing, the space between the partitions communicating with outlet ports 17 of the lower chamber 4, and inlet ports 18 of the upper chamber 5. Each partition has circumferentially spaced openings 20, which are axially aligned in pairs and permit communication between the spaces 31, 32 'between each chamber and the housing. A valve 22 is soldered by a low melting point alloy to each opening 20 in the lower partition and is spring urged towards the corresponding opening in the upper partition. Initially air passes from the inlet 2 through the lower chamber 4 to its outlet ports 17 and then through space 31 surrounding the upper chamber 5, thus by-passing the upper chamber. As the chemical in the lower chamber becomes exhausted heat generated by the chemical reaction melts the solder and each valve 22 is released from an opening 20 to close the corresponding opening 21 in the upper partition. Air from the housing inlet 2 then flows to the outlet 3 by way of the space 32 around the lower chamber, the openings in the lower partition inlet ports 18, and through the upper chamber 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB530659A GB856026A (en) | 1959-02-16 | 1959-02-16 | Oxygen producing canister |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB530659A GB856026A (en) | 1959-02-16 | 1959-02-16 | Oxygen producing canister |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB856026A true GB856026A (en) | 1960-12-14 |
Family
ID=9793613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB530659A Expired GB856026A (en) | 1959-02-16 | 1959-02-16 | Oxygen producing canister |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB856026A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2539305A1 (en) * | 1983-01-17 | 1984-07-20 | Inst Gornospasatelnogo Dela | REGENERATING CARTRIDGE FOR INSULATED RESPIRATORY APPARATUS WITH RELATED OXYGEN RESERVE |
-
1959
- 1959-02-16 GB GB530659A patent/GB856026A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2539305A1 (en) * | 1983-01-17 | 1984-07-20 | Inst Gornospasatelnogo Dela | REGENERATING CARTRIDGE FOR INSULATED RESPIRATORY APPARATUS WITH RELATED OXYGEN RESERVE |
| GB2133698A (en) * | 1983-01-17 | 1984-08-01 | Vnii Gornospasate | Regenerative canister for a self-contained oxygen-breathing apparatus on chemically fixed oxygen |
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