GB828510A - Air reserve arrangement for breathing apparatus - Google Patents
Air reserve arrangement for breathing apparatusInfo
- Publication number
- GB828510A GB828510A GB5723/58A GB572358A GB828510A GB 828510 A GB828510 A GB 828510A GB 5723/58 A GB5723/58 A GB 5723/58A GB 572358 A GB572358 A GB 572358A GB 828510 A GB828510 A GB 828510A
- Authority
- GB
- United Kingdom
- Prior art keywords
- air
- valve
- seating
- inhalation
- ball
- 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
- A62B9/022—Breathing demand regulators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
- B63C11/02—Divers' equipment
- B63C11/18—Air supply
- B63C11/22—Air supply carried by diver
- B63C11/2209—First-stage regulators
Landscapes
- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
828,510. Respiratory appliances. SPIROTECHNIQUE. Feb. 21, 1958 [Feb. 27, 1957], No. 5723/58. Class 81 (2). A reserve arrangement for underwater breathing apparatus has the reserve valve mechanism located within the inhalation chamber of the regulator, to avoid wastage if leaks occur. A gas cylinder is connected to a coupling member 30 and air, passing down the central duct 34, is led through an annular passage 41 to a spring-loaded ball valve 66 and thence to the seating member 42 of the inhalation valve 20. A diaphragm 15 controls the inhalation valve 20, in the usual manner, through levers 16 and an outlet 12a is connected to the face mask. The air supplied by the cylinder is continuously used until its pressure is insufficient to lift the ball 66 off its seating and the cessation of flow serves as a warning, to the user, of approaching exhaustion of the supply. When this occurs the ball is positively lifted off its seating, to resume the flow of air, by a plunger 70 actuated through a cam 82 by a handle 92. Since the whole of the valve mechanism is located within the inhalation chamber 10, any air which may leak from it passes into the normal breathing supply and there is no wastage.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US828510XA | 1957-02-27 | 1957-02-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB828510A true GB828510A (en) | 1960-02-17 |
Family
ID=22173846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5723/58A Expired GB828510A (en) | 1957-02-27 | 1958-02-21 | Air reserve arrangement for breathing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB828510A (en) |
-
1958
- 1958-02-21 GB GB5723/58A patent/GB828510A/en not_active Expired
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