GB911026A - Improvements in or relating to respiratory diving apparatus - Google Patents
Improvements in or relating to respiratory diving apparatusInfo
- Publication number
- GB911026A GB911026A GB283661A GB283661A GB911026A GB 911026 A GB911026 A GB 911026A GB 283661 A GB283661 A GB 283661A GB 283661 A GB283661 A GB 283661A GB 911026 A GB911026 A GB 911026A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pressure
- chamber
- chest
- exhalation
- drager
- 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
-
- 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
- B63C11/24—Air supply carried by diver in closed circulation
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
911,026. Respiratory appliances. DRAGER, O. H., [trading as DRAGERWERK, H. & B. DRAGER]. Jan. 24, 1961 [Jan. 25, 1960], No. 2836/61. Class 81 (2). In underwater breathing-apparatus inhalation gas is supplied to the user at a pressure greater than the ambient pressure on his chest but exhalation takes place against a pressure lower than the pressure on his chest. A mouthpiece I is connected by an exhalation pipe 10 through a valve 2 and carbon dioxide absorber 3 to an expansible chamber 4 and by a pipe 11 through a valve 7 to a similar chamber 6. The chamber 4 is mounted higher than the user's chest so as to be subjected to a lower ambient pressure, while chamber 6 is situated below the chest. Consequently inhalation takes place from the higher pressure chamber 6 while exhalation is into the lower pressure chamber 4 and the air is continuously passed back from the latter to the former by a motor-driven pump 5. Opening and closing of the valves 2, 7 are performed by suitable pressure-sensitive diaphragms. In a modification, the expansible chambers are mounted adjacent each other but are loaded by springs to give the desired result.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES66771A DE1155357B (en) | 1960-01-25 | 1960-01-25 | Breathing device for diving to greater depths |
Publications (1)
Publication Number | Publication Date |
---|---|
GB911026A true GB911026A (en) | 1962-11-21 |
Family
ID=7499060
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB283661A Expired GB911026A (en) | 1960-01-25 | 1961-01-24 | Improvements in or relating to respiratory diving apparatus |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1155357B (en) |
GB (1) | GB911026A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3837337A (en) * | 1973-01-29 | 1974-09-24 | Violette P | Self-contained closed circuit breathing apparatus |
FR2693117A1 (en) * | 1992-07-03 | 1994-01-07 | Lemasson Yves | Breathing apparatus, esp. for firefighters - has filter cartridge between supple bags of exhaled and inhaled gases with auxliary gas feed |
CN109276789A (en) * | 2018-11-21 | 2019-01-29 | 王晖 | A kind of negative pressure tractive respiratory method and its device |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1275398B (en) * | 1965-03-01 | 1968-08-14 | Walter Schuessler | Independent diving device for underwater breathing of atmospheric air, compressed by an electrically driven blower |
DE1756880B1 (en) * | 1967-02-27 | 1970-07-30 | Ocean Systems | Breathing device for diving to greater depths |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE331363C (en) * | 1916-05-24 | 1921-01-06 | Alexander Bernhard Draeger Dr | Breathing apparatus, especially for divers |
US2483116A (en) * | 1946-10-31 | 1949-09-27 | Oscar D Yarbrough | Underwater breathing apparatus |
-
1960
- 1960-01-25 DE DES66771A patent/DE1155357B/en active Pending
-
1961
- 1961-01-24 GB GB283661A patent/GB911026A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3837337A (en) * | 1973-01-29 | 1974-09-24 | Violette P | Self-contained closed circuit breathing apparatus |
FR2693117A1 (en) * | 1992-07-03 | 1994-01-07 | Lemasson Yves | Breathing apparatus, esp. for firefighters - has filter cartridge between supple bags of exhaled and inhaled gases with auxliary gas feed |
CN109276789A (en) * | 2018-11-21 | 2019-01-29 | 王晖 | A kind of negative pressure tractive respiratory method and its device |
Also Published As
Publication number | Publication date |
---|---|
DE1155357B (en) | 1963-10-03 |
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