FR688098A - Improvements to exhalation valves for respiratory masks and others - Google Patents

Improvements to exhalation valves for respiratory masks and others

Info

Publication number
FR688098A
FR688098A FR688098DA FR688098A FR 688098 A FR688098 A FR 688098A FR 688098D A FR688098D A FR 688098DA FR 688098 A FR688098 A FR 688098A
Authority
FR
France
Prior art keywords
respiratory masks
exhalation valves
exhalation
valves
masks
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)
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.)
Nordiska Armaturfabrikerna AB
Original Assignee
Nordiska Armaturfabrikerna AB
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 Nordiska Armaturfabrikerna AB filed Critical Nordiska Armaturfabrikerna AB
Application granted granted Critical
Publication of FR688098A publication Critical patent/FR688098A/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
    • F16K15/147—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery the closure elements having specially formed slits or being of an elongated easily collapsible form

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR688098D 1929-11-04 1929-11-04 Improvements to exhalation valves for respiratory masks and others Expired FR688098A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR688098T 1929-11-04

Publications (1)

Publication Number Publication Date
FR688098A true FR688098A (en) 1930-08-19

Family

ID=9026518

Family Applications (1)

Application Number Title Priority Date Filing Date
FR688098D Expired FR688098A (en) 1929-11-04 1929-11-04 Improvements to exhalation valves for respiratory masks and others

Country Status (1)

Country Link
FR (1) FR688098A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2585105A1 (en) * 1985-07-18 1987-01-23 Delorme Francis Membrane valve and ventilated protective clothing provided with such a valve
US20150192212A1 (en) * 2013-02-22 2015-07-09 Nsi International, Inc. Valve assembly for inflatable bladder and method of manufacturing the same
US10465809B2 (en) 2013-02-22 2019-11-05 Nsi International, Inc. Valve assembly for expandable bladder and method of manufacturing the same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2585105A1 (en) * 1985-07-18 1987-01-23 Delorme Francis Membrane valve and ventilated protective clothing provided with such a valve
EP0274963B1 (en) * 1987-01-16 1991-08-07 Jean Grizard Quickly opening membrane valve, especially for protective garments
US20150192212A1 (en) * 2013-02-22 2015-07-09 Nsi International, Inc. Valve assembly for inflatable bladder and method of manufacturing the same
US10408359B2 (en) * 2013-02-22 2019-09-10 Nsi International, Inc. Valve assembly for inflatable bladder and method of manufacturing the same
US10465809B2 (en) 2013-02-22 2019-11-05 Nsi International, Inc. Valve assembly for expandable bladder and method of manufacturing the same
US10995868B2 (en) 2013-02-22 2021-05-04 Nsi International, Inc. Valve assembly for inflatable bladder and method of manufacturing the same

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