GB362573A - Improvements in and relating to respirators - Google Patents
Improvements in and relating to respiratorsInfo
- Publication number
- GB362573A GB362573A GB2933430A GB2933430A GB362573A GB 362573 A GB362573 A GB 362573A GB 2933430 A GB2933430 A GB 2933430A GB 2933430 A GB2933430 A GB 2933430A GB 362573 A GB362573 A GB 362573A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oxygen
- valve
- cylinder
- opening
- closed
- 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
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B9/00—Component parts for respiratory or breathing apparatus
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)
Abstract
362,573. Respirators. KOCH, E., 2, Lambertstrasse, Essen, Germany. Sept. 30, 1930, No. 29334. [Class 81 (ii).] In a closed cycle respiration apparatus having either an oxygen cylinder, o r a chemical c a r t - ridge developing oxygen, a cut-off device is p r o - vided for the respiration c i r - cuit such that the circuit is opened when the oxygen supply is open, and closed when it is not. The device is intended to prevent use of the apparatus with the oxygen supply inadvertently left unopened. The valve is controlled by the oxygen pressure in the case of an oxygen cylinder, or by the starting means for the chemical cartridge or by the cut-off valve of an auxiliary oxygen flask if used. Figs. 1 and 3 show the examples of the device, the first being a valve h in the inhalation circuit b of the mask a, actuated by a Bourdon tube i which expands on opening the oxygen cylinder g. In the second, the valve h is connected to a piston in a cylinder b, and held closed by a spring. On opening the cylinder. the oxygen pressure overcomes the spring and opens the valve. The valve may also be operated mechanically by the opening means for the oxygen cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2933430A GB362573A (en) | 1930-09-30 | 1930-09-30 | Improvements in and relating to respirators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2933430A GB362573A (en) | 1930-09-30 | 1930-09-30 | Improvements in and relating to respirators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB362573A true GB362573A (en) | 1931-12-10 |
Family
ID=10289904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2933430A Expired GB362573A (en) | 1930-09-30 | 1930-09-30 | Improvements in and relating to respirators |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB362573A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2201096A (en) * | 1987-02-13 | 1988-08-24 | Sabre Safety Ltd | Emergency escape breathing apparatus |
-
1930
- 1930-09-30 GB GB2933430A patent/GB362573A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2201096A (en) * | 1987-02-13 | 1988-08-24 | Sabre Safety Ltd | Emergency escape breathing apparatus |
| GB2201096B (en) * | 1987-02-13 | 1990-09-19 | Sabre Safety Ltd | Emergency escape breathing apparatus |
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