GB925774A - Oxygen demand regulator - Google Patents
Oxygen demand regulatorInfo
- Publication number
- GB925774A GB925774A GB685661A GB685661A GB925774A GB 925774 A GB925774 A GB 925774A GB 685661 A GB685661 A GB 685661A GB 685661 A GB685661 A GB 685661A GB 925774 A GB925774 A GB 925774A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- oxygen
- feb
- capsule
- demand regulator
- 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
- A62B9/02—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)
- Gas Burners (AREA)
Abstract
925,774. Respiratory appliances. BRITISH OXYGEN CO. Ltd. Feb. 23, 1962 [Feb. 24, 1961], No. 6856/61. Class 81 (2). [Also in Group XXIX] An oxygen demand regulator, for high altitude use, has a diaphragm-controlled valve 13 for controlling the passage of oxygen from an inlet 14 to a nozzle device 18 where it issues into a mixing chamber 20, entraining ambient air through a flap valve 24 so that the mixture passes to an outlet 21. Increase in altitude causes an aneroid capsule 25 to expand and progressively close a valve 32 and thereby reduce the proportion of air in the mixture until, at a predetermined point, the initial tension in a spring 30 is released and a valve 20<SP>x</SP> is thereby allowed to open and pass a considerably greater flow of oxygen. Subsequently, the valve 32 is closed completely. For emergency use the stem 27, on which the fixed end of the capsule 25 is mounted, is associated with a cam device 36 so that, by moving a handle 35, the valve 20<SP>x</SP> can be opened immediately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB685661A GB925774A (en) | 1961-02-24 | 1961-02-24 | Oxygen demand regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB685661A GB925774A (en) | 1961-02-24 | 1961-02-24 | Oxygen demand regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB925774A true GB925774A (en) | 1963-05-08 |
Family
ID=9822001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB685661A Expired GB925774A (en) | 1961-02-24 | 1961-02-24 | Oxygen demand regulator |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB925774A (en) |
-
1961
- 1961-02-24 GB GB685661A patent/GB925774A/en not_active Expired
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