ATE191150T1 - MASK FOR BREATHING DEVICE FOR SUPPLYING PRESSURE OR UNPRESSURIZED AIR - Google Patents

MASK FOR BREATHING DEVICE FOR SUPPLYING PRESSURE OR UNPRESSURIZED AIR

Info

Publication number
ATE191150T1
ATE191150T1 AT95200205T AT95200205T ATE191150T1 AT E191150 T1 ATE191150 T1 AT E191150T1 AT 95200205 T AT95200205 T AT 95200205T AT 95200205 T AT95200205 T AT 95200205T AT E191150 T1 ATE191150 T1 AT E191150T1
Authority
AT
Austria
Prior art keywords
mask
supplying pressure
breathing device
interference
control member
Prior art date
Application number
AT95200205T
Other languages
German (de)
Inventor
Riccardo Spasciani
Original Assignee
Spasciani Riccardo 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 Spasciani Riccardo Spa filed Critical Spasciani Riccardo Spa
Application granted granted Critical
Publication of ATE191150T1 publication Critical patent/ATE191150T1/en

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

Landscapes

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

Abstract

A mask (10) for breathing apparatus, provided with one-way air inlet (12) and one-way air outlet valves (14) of variable elasticity, in which said outlet or expiration valve (14) has an opening pressure selected between a first and a second predetermined values by means of a prearrangement control member (24). The expiration valve (14) comprises an airtight diaphragm (16) elastically pushed to close an expiration passageway (13) by means of two springs (19, 25) in series with each other, the former (19) having an elastic coefficient greater than the latter (25); the control member (24) is movable between a position of non-interference and a position of interference with the elastic movement of the second spring (25) under the action of a pressure acting on the diaphragm (16). <IMAGE>
AT95200205T 1994-02-09 1995-01-27 MASK FOR BREATHING DEVICE FOR SUPPLYING PRESSURE OR UNPRESSURIZED AIR ATE191150T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT94MI000091U IT232743Y1 (en) 1994-02-09 1994-02-09 IMPROVED MASK FOR PRESSURED OR UNPRESSURED AIR BREATHING DEVICES

Publications (1)

Publication Number Publication Date
ATE191150T1 true ATE191150T1 (en) 2000-04-15

Family

ID=11367590

Family Applications (1)

Application Number Title Priority Date Filing Date
AT95200205T ATE191150T1 (en) 1994-02-09 1995-01-27 MASK FOR BREATHING DEVICE FOR SUPPLYING PRESSURE OR UNPRESSURIZED AIR

Country Status (4)

Country Link
EP (1) EP0667171B1 (en)
AT (1) ATE191150T1 (en)
DE (1) DE69515920T2 (en)
IT (1) IT232743Y1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004052173B3 (en) * 2004-10-27 2006-01-12 Dräger Safety AG & Co. KGaA Respirator for normal pressure and overpressure operation
GB2500341B (en) * 2009-05-12 2014-01-22 Scott Health & Safety Ltd Mask for breathing apparatus
EP2361656B1 (en) 2010-02-26 2016-06-08 Dräger Safety AG & Co. KGaA Respirator mask
WO2022056253A1 (en) * 2020-09-11 2022-03-17 Msa Technology, Llc Dual mode breathing apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE736268C (en) * 1940-10-26 1943-06-10 Ig Farbenindustrie Ag Device for closing the exhalation valve of protective gas masks
FR1475015A (en) * 1966-02-18 1967-03-31 Commissariat Energie Atomique Exhalation device for respiratory masks
FR1586121A (en) * 1968-07-11 1970-02-13
GB2264646A (en) * 1992-02-12 1993-09-08 Sabre Safety Ltd Breathing apparatus

Also Published As

Publication number Publication date
DE69515920D1 (en) 2000-05-04
EP0667171B1 (en) 2000-03-29
IT232743Y1 (en) 2000-01-19
EP0667171A1 (en) 1995-08-16
ITMI940091U1 (en) 1995-08-09
DE69515920T2 (en) 2000-12-21
ITMI940091V0 (en) 1994-02-09

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Legal Events

Date Code Title Description
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