FR776474A - Improvements for breathing apparatus and other applications - Google Patents

Improvements for breathing apparatus and other applications

Info

Publication number
FR776474A
FR776474A FR776474DA FR776474A FR 776474 A FR776474 A FR 776474A FR 776474D A FR776474D A FR 776474DA FR 776474 A FR776474 A FR 776474A
Authority
FR
France
Prior art keywords
applications
breathing apparatus
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
Other languages
French (fr)
Inventor
Baar Pierre
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 filed Critical
Application granted granted Critical
Publication of FR776474A publication Critical patent/FR776474A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/144—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR776474D 1934-07-04 1934-07-26 Improvements for breathing apparatus and other applications Expired FR776474A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE776474X 1934-07-04

Publications (1)

Publication Number Publication Date
FR776474A true FR776474A (en) 1935-01-26

Family

ID=3880301

Family Applications (1)

Application Number Title Priority Date Filing Date
FR776474D Expired FR776474A (en) 1934-07-04 1934-07-26 Improvements for breathing apparatus and other applications

Country Status (1)

Country Link
FR (1) FR776474A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3342200A (en) * 1965-03-12 1967-09-19 Sierra Eng Co Oxygen mask exhalation check valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3342200A (en) * 1965-03-12 1967-09-19 Sierra Eng Co Oxygen mask exhalation check valve

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