FR50714E - Valve for gas masks and other similar applications - Google Patents

Valve for gas masks and other similar applications

Info

Publication number
FR50714E
FR50714E FR50714DA FR50714E FR 50714 E FR50714 E FR 50714E FR 50714D A FR50714D A FR 50714DA FR 50714 E FR50714 E FR 50714E
Authority
FR
France
Prior art keywords
valve
similar applications
gas masks
masks
gas
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.)
Pirelli and C SpA
Original Assignee
Pirelli SpA
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 Pirelli SpA filed Critical Pirelli SpA
Application granted granted Critical
Publication of FR50714E publication Critical patent/FR50714E/en
Expired legal-status Critical Current

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
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • 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
    • F16K15/148—Check valves with flexible valve members the closure elements being fixed in their centre

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
FR50714D 1939-06-13 1939-06-13 Valve for gas masks and other similar applications Expired FR50714E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR50714T 1939-06-13

Publications (1)

Publication Number Publication Date
FR50714E true FR50714E (en) 1941-02-24

Family

ID=8685687

Family Applications (2)

Application Number Title Priority Date Filing Date
FR791601D Expired FR791601A (en) 1939-06-13 1935-06-21 Valve for gas masks and other similar applications
FR50714D Expired FR50714E (en) 1939-06-13 1939-06-13 Valve for gas masks and other similar applications

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR791601D Expired FR791601A (en) 1939-06-13 1935-06-21 Valve for gas masks and other similar applications

Country Status (1)

Country Link
FR (2) FR791601A (en)

Also Published As

Publication number Publication date
FR791601A (en) 1935-12-14

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