BR0213882A - Máscara facial de filtragem, e, válvula de exalação - Google Patents

Máscara facial de filtragem, e, válvula de exalação

Info

Publication number
BR0213882A
BR0213882A BR0213882-4A BR0213882A BR0213882A BR 0213882 A BR0213882 A BR 0213882A BR 0213882 A BR0213882 A BR 0213882A BR 0213882 A BR0213882 A BR 0213882A
Authority
BR
Brazil
Prior art keywords
valve
exhalation
gas space
tab
internal gas
Prior art date
Application number
BR0213882-4A
Other languages
English (en)
Inventor
Philip Gene Martin
Jianxian Xue
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 BR0213882A publication Critical patent/BR0213882A/pt

Links

Classifications

    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00Breathing 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
    • A62B18/08Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
    • A62B18/10Valves

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)
  • Check Valves (AREA)

Abstract

"MáSCARA FACIAL DE FILTRAGEM, E, VáLVULA DE EXALAçãO". Uma máscara facial de filtragem, que inclui um corpo de máscara e uma válvula de exalação. O corpo de máscara é adaptado para encaixar pelo menos sobre o nariz e boca de um usuário, para criar um espaço de gás interno quando usado e a válvula de exalação fica em comunicação fluida com o espaço de gás interno. A válvula de exalação compreende uma sede de válvula, que tem uma superfície de selagem e um orifício através do qual uma corrente de fluxo de exalação pode passar, para deixar o espaço de gás interno. Uma aba flexível (22) é fixada à sede de válvula, de modo que a aba faça contato com a superfície de selagem, quando a válvula está em sua posição fechada e de modo que a aba possa flexionar-se afastando-se da superfície de selagem durante uma exalação, para permitir que ar exalado passe através do orifício para, finalmente, penetrar em um espaço de gás exterior. A aba flexível tem pelo menos primeira (44) e segunda (46) camadas superpostas, em que pelo menos uma das camadas é mais rígida ou tem um módulo elástico diferente do da outra camada.
BR0213882-4A 2001-11-21 2002-10-03 Máscara facial de filtragem, e, válvula de exalação BR0213882A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/989,965 US7028689B2 (en) 2001-11-21 2001-11-21 Filtering face mask that uses an exhalation valve that has a multi-layered flexible flap
PCT/US2002/031418 WO2003045503A1 (en) 2001-11-21 2002-10-03 Filtering face mask that uses an exhalation valve that has a multilayered flexible flap

Publications (1)

Publication Number Publication Date
BR0213882A true BR0213882A (pt) 2004-08-31

Family

ID=25535618

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0213882-4A BR0213882A (pt) 2001-11-21 2002-10-03 Máscara facial de filtragem, e, válvula de exalação

Country Status (14)

Country Link
US (2) US7028689B2 (pt)
EP (1) EP1446197B1 (pt)
JP (1) JP4386728B2 (pt)
KR (1) KR100913855B1 (pt)
CN (1) CN100522288C (pt)
AT (1) ATE298607T1 (pt)
AU (1) AU2002340081B2 (pt)
BR (1) BR0213882A (pt)
CA (1) CA2466481A1 (pt)
DE (1) DE60204909T2 (pt)
ES (1) ES2242884T3 (pt)
MX (1) MXPA04004761A (pt)
TW (1) TWI238729B (pt)
WO (1) WO2003045503A1 (pt)

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Also Published As

Publication number Publication date
AU2002340081A1 (en) 2003-06-10
TW200300355A (en) 2003-06-01
KR100913855B1 (ko) 2009-08-26
TWI238729B (en) 2005-09-01
MXPA04004761A (es) 2004-07-30
CN1589168A (zh) 2005-03-02
US20050155607A1 (en) 2005-07-21
CN100522288C (zh) 2009-08-05
US7013895B2 (en) 2006-03-21
ES2242884T3 (es) 2005-11-16
EP1446197B1 (en) 2005-06-29
ATE298607T1 (de) 2005-07-15
DE60204909T2 (de) 2006-04-27
JP2005510314A (ja) 2005-04-21
EP1446197A1 (en) 2004-08-18
US7028689B2 (en) 2006-04-18
US20050061327A1 (en) 2005-03-24
DE60204909D1 (de) 2005-08-04
JP4386728B2 (ja) 2009-12-16
KR20040053350A (ko) 2004-06-23
AU2002340081B2 (en) 2008-04-10
WO2003045503A1 (en) 2003-06-05
CA2466481A1 (en) 2003-06-05

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B09B Patent application refused [chapter 9.2 patent gazette]

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