GB911026A - Improvements in or relating to respiratory diving apparatus - Google Patents

Improvements in or relating to respiratory diving apparatus

Info

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
Application number
GB283661A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB911026A publication Critical patent/GB911026A/en
Expired legal-status Critical Current

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.
GB283661A 1960-01-25 1961-01-24 Improvements in or relating to respiratory diving apparatus Expired GB911026A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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