NL49614C - - Google Patents

Info

Publication number
NL49614C
NL49614C NL49614DA NL49614C NL 49614 C NL49614 C NL 49614C NL 49614D A NL49614D A NL 49614DA NL 49614 C NL49614 C NL 49614C
Authority
NL
Netherlands
Application number
Publication of NL49614C publication Critical patent/NL49614C/xx

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
    • A62B18/10—Valves
    • 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
    • F16K15/16—Check valves with flexible valve members with tongue-shaped laminae

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
NL49614D NL49614C (zh)

Publications (1)

Publication Number Publication Date
NL49614C true NL49614C (zh)

Family

ID=1808409

Family Applications (1)

Application Number Title Priority Date Filing Date
NL49614D NL49614C (zh)

Country Status (1)

Country Link
NL (1) NL49614C (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009088545A3 (en) * 2007-11-27 2009-11-05 3M Innovative Properties Company Face mask with unidirectional valve
US10137321B2 (en) 2008-03-24 2018-11-27 3M Innovative Properties Company Filtering face-piece respirator having an integrally-joined exhalation valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009088545A3 (en) * 2007-11-27 2009-11-05 3M Innovative Properties Company Face mask with unidirectional valve
EP2345457A1 (en) * 2007-11-27 2011-07-20 3M Innovative Properties Co. Face mask with unidirectional valve
US10137321B2 (en) 2008-03-24 2018-11-27 3M Innovative Properties Company Filtering face-piece respirator having an integrally-joined exhalation valve

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