BR0113936A - Respirador de pressão negativa, e, método de remoção de contaminantes de uma corrente de fluxo exalada - Google Patents

Respirador de pressão negativa, e, método de remoção de contaminantes de uma corrente de fluxo exalada

Info

Publication number
BR0113936A
BR0113936A BR0113936-3A BR0113936A BR0113936A BR 0113936 A BR0113936 A BR 0113936A BR 0113936 A BR0113936 A BR 0113936A BR 0113936 A BR0113936 A BR 0113936A
Authority
BR
Brazil
Prior art keywords
wearer
respirator
exhalation valve
negative pressure
flow stream
Prior art date
Application number
BR0113936-3A
Other languages
English (en)
Inventor
Daniel A Japuntich
Nicole V Mccullough
Original Assignee
3M Innovative Properties Co
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 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Publication of BR0113936A publication Critical patent/BR0113936A/pt

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
    • A62B18/02—Masks
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A41D13/1107—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape
    • A41D13/1138—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a cup configuration
    • 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
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B23/00—Filters for breathing-protection purposes
    • A62B23/02—Filters for breathing-protection purposes for respirators
    • A62B23/025—Filters for breathing-protection purposes for respirators the filter having substantially the shape of a mask

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Pulmonology (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Zoology (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

"RESPIRADOR DE PRESSãO NEGATIVA, E, MéTODO DE REMOçãO DE CONTAMINANTES DE UMA CORRENTE DE FLUXO EXALADA". Um respirador de pressão negativa (20') que tem um elemento de filtro disposto integralmente (28) e que cobre, pelo menos, o nariz e boca de um usuário. O respirador (20') inclui uma válvula de exalação (22) e um elemento impactador (50) que cobre a válvula de exalação (22). A válvula de exalação (22) tem um diafragma e um orifício e se abre em resposta ao aumento de pressão, quando o usuário exala para permitir que o ar exalado seja purgado rapidamente do interior da máscara. O elemento impactador (50) fica posicionado na corrente de fluxo exalada para remover partículas e outros contaminantes do ar exalado. A válvula de exalação e o elemento impactador têm uma relação de Z~ n~:D~ j~ de menos de cerca de 5. O respirador (20') é benéfico em virtude de ele proporcionar conforto ao usuário, permitindo que ar quente, úmido e com alto teor de CO2 seja evacuado rapidamente do interior da máscara através da válvula (22) e também protege o usuário contra respingos de fluido e de ar poluído, ao mesmo tempo em que protege outras pessoas ou itens de se exporem a partículas e outros contaminantes exalados pelo usuário.
BR0113936-3A 2000-09-21 2001-01-19 Respirador de pressão negativa, e, método de remoção de contaminantes de uma corrente de fluxo exalada BR0113936A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/667,406 US6460539B1 (en) 2000-09-21 2000-09-21 Respirator that includes an integral filter element, an exhalation valve, and impactor element
PCT/US2001/001915 WO2002024279A1 (en) 2000-09-21 2001-01-19 Respirator that includes an integral filter element, an exhalation valve, and impactor element

Publications (1)

Publication Number Publication Date
BR0113936A true BR0113936A (pt) 2004-01-20

Family

ID=24678079

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0113936-3A BR0113936A (pt) 2000-09-21 2001-01-19 Respirador de pressão negativa, e, método de remoção de contaminantes de uma corrente de fluxo exalada

Country Status (15)

Country Link
US (1) US6460539B1 (pt)
EP (1) EP1322384B1 (pt)
JP (1) JP4688403B2 (pt)
KR (1) KR100753700B1 (pt)
CN (1) CN1251774C (pt)
AT (1) ATE381371T1 (pt)
AU (2) AU2001231015B2 (pt)
BR (1) BR0113936A (pt)
CA (1) CA2421180A1 (pt)
CZ (1) CZ2003795A3 (pt)
DE (1) DE60131996T2 (pt)
MX (1) MXPA03002371A (pt)
PL (1) PL196013B1 (pt)
WO (1) WO2002024279A1 (pt)
ZA (1) ZA200303010B (pt)

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JP2004508908A (ja) 2004-03-25
DE60131996T2 (de) 2008-12-04
CN1251774C (zh) 2006-04-19
KR20030038754A (ko) 2003-05-16
ZA200303010B (en) 2004-07-15
DE60131996D1 (de) 2008-01-31
CN1462198A (zh) 2003-12-17
JP4688403B2 (ja) 2011-05-25
US6460539B1 (en) 2002-10-08
KR100753700B1 (ko) 2007-08-30
EP1322384B1 (en) 2007-12-19
WO2002024279A1 (en) 2002-03-28
ATE381371T1 (de) 2008-01-15
EP1322384A1 (en) 2003-07-02
CZ2003795A3 (cs) 2003-08-13
PL360491A1 (en) 2004-09-06
PL196013B1 (pl) 2007-11-30
CA2421180A1 (en) 2002-03-28
MXPA03002371A (es) 2003-10-15
AU3101501A (en) 2002-04-02

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