GB314749A - Improvements in breathing apparatus - Google Patents

Improvements in breathing apparatus

Info

Publication number
GB314749A
GB314749A GB3428728A GB3428728A GB314749A GB 314749 A GB314749 A GB 314749A GB 3428728 A GB3428728 A GB 3428728A GB 3428728 A GB3428728 A GB 3428728A GB 314749 A GB314749 A GB 314749A
Authority
GB
United Kingdom
Prior art keywords
container
bag
valve
davis
breathing
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
GB3428728A
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
Priority to GB3428728A priority Critical patent/GB314749A/en
Publication of GB314749A publication Critical patent/GB314749A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B7/00—Respiratory apparatus
    • A62B7/08—Respiratory apparatus containing chemicals producing oxygen

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Emergency Medicine (AREA)
  • General Chemical & Material Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

314,749. Davis, R. H., and Davis, R. W. G. Nov. 21, 1928. Respirators. - Self - contained breathing-apparatus of the kind evolving oxygen by the action of the breath on suitable chemicals such as sodium or potassium peroxide, has a multiway valve 6 disposed between the chemical container 3 and the breathing bag 4 so that the container and bag may be placed at any time in communication with each other or with the atmosphere. The face mask 1 may be isolated from the container by a valve 8 in the connecting tube 2. The valve 6 is connected to bag and container by screw couplings 7.
GB3428728A 1928-11-21 1928-11-21 Improvements in breathing apparatus Expired GB314749A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3428728A GB314749A (en) 1928-11-21 1928-11-21 Improvements in breathing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3428728A GB314749A (en) 1928-11-21 1928-11-21 Improvements in breathing apparatus

Publications (1)

Publication Number Publication Date
GB314749A true GB314749A (en) 1929-07-04

Family

ID=10363739

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3428728A Expired GB314749A (en) 1928-11-21 1928-11-21 Improvements in breathing apparatus

Country Status (1)

Country Link
GB (1) GB314749A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2357500A1 (en) * 1976-07-09 1978-02-03 Norcem As PROCESS FOR PREPARING CEMENT OF HIGH CORROSION RESISTANCE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2357500A1 (en) * 1976-07-09 1978-02-03 Norcem As PROCESS FOR PREPARING CEMENT OF HIGH CORROSION RESISTANCE

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