DE69515920D1 - Respirator mask for supply of pressureless or pressurized air - Google Patents

Respirator mask for supply of pressureless or pressurized air

Info

Publication number
DE69515920D1
DE69515920D1 DE69515920T DE69515920T DE69515920D1 DE 69515920 D1 DE69515920 D1 DE 69515920D1 DE 69515920 T DE69515920 T DE 69515920T DE 69515920 T DE69515920 T DE 69515920T DE 69515920 D1 DE69515920 D1 DE 69515920D1
Authority
DE
Germany
Prior art keywords
pressureless
supply
pressurized air
interference
respirator mask
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 - Lifetime
Application number
DE69515920T
Other languages
German (de)
Other versions
DE69515920T2 (en
Inventor
Riccardo Spasciani
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.)
SPASCIANI RICCARDO SpA
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 DE69515920D1 publication Critical patent/DE69515920D1/en
Publication of DE69515920T2 publication Critical patent/DE69515920T2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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

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>
DE69515920T 1994-02-09 1995-01-27 Respirator mask for supply of pressureless or pressurized air Expired - Lifetime DE69515920T2 (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 (2)

Publication Number Publication Date
DE69515920D1 true DE69515920D1 (en) 2000-05-04
DE69515920T2 DE69515920T2 (en) 2000-12-21

Family

ID=11367590

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69515920T Expired - Lifetime DE69515920T2 (en) 1994-02-09 1995-01-27 Respirator mask for supply of pressureless or pressurized 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
GB2470199B (en) 2009-05-12 2013-08-14 Scott Health & Safety Ltd Mask for breathing apparatus
EP2361656B1 (en) 2010-02-26 2016-06-08 Dräger Safety AG & Co. KGaA Respirator mask
CA3194978A1 (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
DE69515920T2 (en) 2000-12-21
EP0667171A1 (en) 1995-08-16
ATE191150T1 (en) 2000-04-15
ITMI940091V0 (en) 1994-02-09
IT232743Y1 (en) 2000-01-19
ITMI940091U1 (en) 1995-08-09
EP0667171B1 (en) 2000-03-29

Similar Documents

Publication Publication Date Title
ATE271671T1 (en) PRE-CONTROLLED CONTROL VALVE
GB1157365A (en) Squeeze-Bag Resuscitator
NO941160L (en) Apparatus for generating magnetic pulses
DK0632203T3 (en) Electropneumatic converter with solenoid valve control
SE7711224L (en) BREATHING VALVE FOR BREATHING DEVICES
SE9003465D0 (en) FANNER
SE8603916L (en) DIVERSE RESPIRATORY SYSTEM
DE69515920D1 (en) Respirator mask for supply of pressureless or pressurized air
ATE61463T1 (en) VALVE WITH DIAPHRAGM.
GB918824A (en) Improvements relating to fluid flow regulating devices
CA2046113A1 (en) Adjustable air pressure valve
FR2311670A1 (en) Vehicle levelling mechanism has pneumatic springs either side - outlet valves, compressor and magnetic coil controlling gas flow to springs
ATE207215T1 (en) IMPROVEMENTS TO OR IN COUNTERS
EP1321320A3 (en) Air spring installation and device for sensing pressures
FR2373737A1 (en) Pneumatically operated distributor valve - has inlet outlet and exhaust connections sealed by membrane and actuated from diaphragm
GB791005A (en) Improvements in or relating to fluid-actuated valves
IT8715116V0 (en) REGULAR PRESSURE DEVICE FOR THE SECOND STAGE OF REDUCTION OF AIR RESPIRATORY APPLIANCES
DE59405870D1 (en) GAS PRESSURE CONTROL UNIT
GB1522861A (en) Breathing apparatus
ATE121502T1 (en) PRESSURE REGULATOR.
ATE106515T1 (en) SAFETY SHUT-OFF VALVE, ESPECIALLY FOR GAS PRESSURE REGULATION SYSTEMS.
GB813438A (en) Devices for facilitating breathing and producing artificial respiration
GB900866A (en) Improvements in respiration machines
SE9501781D0 (en) An inlet valve for an air drier
RU93051841A (en) GAS PRESSURE CONTROL DEVICE