ATE285271T1 - VENTILATOR - Google Patents

VENTILATOR

Info

Publication number
ATE285271T1
ATE285271T1 AT95926793T AT95926793T ATE285271T1 AT E285271 T1 ATE285271 T1 AT E285271T1 AT 95926793 T AT95926793 T AT 95926793T AT 95926793 T AT95926793 T AT 95926793T AT E285271 T1 ATE285271 T1 AT E285271T1
Authority
AT
Austria
Prior art keywords
air
pump unit
valve
face piece
fan
Prior art date
Application number
AT95926793T
Other languages
German (de)
Inventor
Martinus Oliver Klockseth
Bengt Yngve Roland Jervmo
Goran Bertil Claes Berndtsson
Original Assignee
Safety Equipment Sweden 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
Priority claimed from AUPM7190A external-priority patent/AUPM719094A0/en
Priority claimed from AUPN1911A external-priority patent/AUPN191195A0/en
Priority claimed from AUPN1909A external-priority patent/AUPN190995A0/en
Priority claimed from AUPN3106A external-priority patent/AUPN310695A0/en
Application filed by Safety Equipment Sweden Ab filed Critical Safety Equipment Sweden Ab
Application granted granted Critical
Publication of ATE285271T1 publication Critical patent/ATE285271T1/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
    • A62B18/006—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 with pumps for forced ventilation

Abstract

A forced air breathing apparatus which includes a face piece (20a) for covering at least the nose or mouth of a wearer, a pump unit (10) arranged to supply air to a space within the face piece (20a), a filter (13) to filter air entering the face piece (20a) and valve means to control the flow of air from the pump unit (20) to the face piece (20a) during inhalation and from the face piece (20a) during exhalation. The pump unit (20) includes a fan (12) driven by an electric motor (11). The valve means includes an air inlet valve (19) and an air outlet valve (22), the air outlet valve (22) being maintained in a closed position during inhalation through the air inlet valve (19) by air pressure from the pump unit (20) and being opened by exhaled air. The exhaled air also acts to close the air inlet valve (19) and prevents the entry of exhaled air to the pump unit (20). The fan (12) is a centrifugal fan driven at a substantially constant speed. A valve (14) is provided on the air inlet side of the pump unit (10) and is arranged to close when a defined air pressure is present within the pump unit (10) downstream of the fan (12).
AT95926793T 1994-08-01 1995-08-01 VENTILATOR ATE285271T1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
AUPM7190A AUPM719094A0 (en) 1994-08-01 1994-08-01 Fan forced positive pressure breathing apparatus
AUPN1911A AUPN191195A0 (en) 1995-03-23 1995-03-23 Positive air-purifying respirator user interface
AUPN1909A AUPN190995A0 (en) 1995-03-23 1995-03-23 Positive air-purifying respirator
AUPN3106A AUPN310695A0 (en) 1995-05-22 1995-05-22 Improved breathing apparatus
PCT/AU1995/000468 WO1996004043A1 (en) 1994-08-01 1995-08-01 Breathing apparatus

Publications (1)

Publication Number Publication Date
ATE285271T1 true ATE285271T1 (en) 2005-01-15

Family

ID=27424376

Family Applications (1)

Application Number Title Priority Date Filing Date
AT95926793T ATE285271T1 (en) 1994-08-01 1995-08-01 VENTILATOR

Country Status (6)

Country Link
EP (1) EP0773814B1 (en)
AT (1) ATE285271T1 (en)
CA (1) CA2196166C (en)
DE (1) DE69533874T2 (en)
ES (1) ES2233946T3 (en)
WO (1) WO1996004043A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0862474A4 (en) * 1995-09-18 2000-05-03 Resmed Ltd Pressure control in cpap treatment or assisted respiration
AUPN973596A0 (en) * 1996-05-08 1996-05-30 Resmed Limited Control of delivery pressure in cpap treatment or assisted respiration
EP1197244A3 (en) * 2000-10-11 2002-10-23 Micronel AG Breathing protection apparatus for a safety device such as protective mask, hood or clothing
EP1339708A2 (en) 2000-11-20 2003-09-03 Scios Inc. Indole-type inhibitors of p38 kinase
EP3871721A1 (en) 2006-10-24 2021-09-01 ResMed Motor Technologies Inc Brushless dc motor with bearings
EP3821928A1 (en) 2009-11-03 2021-05-19 ResMed Pty Ltd Cpap systems
EP3865171A1 (en) * 2010-03-25 2021-08-18 ResMed Paris SAS Breathable gas inlet control device for respiratory treatment apparatus
CN102763917B (en) * 2011-05-03 2014-10-22 周瓴 Mask
JP2013192746A (en) * 2012-03-21 2013-09-30 Shigematsu Works Co Ltd Respirator
EP3669946A1 (en) * 2018-12-18 2020-06-24 Koninklijke Philips N.V. Leakage detection of face masks
WO2019243141A1 (en) * 2018-06-19 2019-12-26 Koninklijke Philips N.V. Leakage detection of face masks
SE545681C2 (en) * 2020-09-30 2023-12-05 Tiki Safety Ab Automatic fan control

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4237877A (en) * 1979-01-22 1980-12-09 Boehler Gabriel D Protective environmental mask with thermoelectric air conditioning system
GB8523331D0 (en) * 1985-09-20 1985-10-23 Devilbiss Co Respiratory protection system
US4827964A (en) * 1987-04-23 1989-05-09 Mine Safety Appliances Company System for metering of breathing gas for accommodation of breathing demand
US4957107A (en) * 1988-05-10 1990-09-18 Sipin Anatole J Gas delivery means
GB8815179D0 (en) * 1988-06-25 1988-08-03 Racal Safety Ltd Differential pressure sensor
US5245994A (en) * 1991-01-08 1993-09-21 National Science Council Air cleaning and supplying system equipped to a helmet for a motorcyclist
GB2264646A (en) * 1992-02-12 1993-09-08 Sabre Safety Ltd Breathing apparatus
DE4205412C2 (en) * 1992-02-22 1994-04-14 Draegerwerk Ag Respirator with liquefied breathing gas
SE9203931L (en) * 1992-12-29 1994-06-30 Interspiro Ab Optical warning device

Also Published As

Publication number Publication date
CA2196166A1 (en) 1996-02-15
DE69533874T2 (en) 2005-12-29
EP0773814A1 (en) 1997-05-21
ES2233946T3 (en) 2005-06-16
EP0773814A4 (en) 1999-07-07
EP0773814B1 (en) 2004-12-22
DE69533874D1 (en) 2005-01-27
WO1996004043A1 (en) 1996-02-15
CA2196166C (en) 2004-04-06

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