GB1191793A - A Respiratory Mask - Google Patents

A Respiratory Mask

Info

Publication number
GB1191793A
GB1191793A GB2859768A GB2859768A GB1191793A GB 1191793 A GB1191793 A GB 1191793A GB 2859768 A GB2859768 A GB 2859768A GB 2859768 A GB2859768 A GB 2859768A GB 1191793 A GB1191793 A GB 1191793A
Authority
GB
United Kingdom
Prior art keywords
space
exhalation
mask
gas
aperture
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
Application number
GB2859768A
Inventor
Otto Heinrich Drager
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.)
Drager Otto H
Original Assignee
Drager Otto H
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 to DED0053324 priority Critical
Application filed by Drager Otto H filed Critical Drager Otto H
Publication of GB1191793A publication Critical patent/GB1191793A/en
Application status is Expired legal-status Critical

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
    • A62B18/02Masks

Abstract

1,191,793. Respiratory masks. 0. H. DRAOER [trading as DRAGERWERK, HEINR. & BERNH DRAGER], 14 June, 1968 J14 June, 1967], No. 28597/68. Heading A5T. A respiratory mask has an integral face seal, comprising outer and inner sealing projections 2, 4 which define a space 5 arranged to receive exhaled gas from. the mask, and an exhalation aperture 8 leading from the space. The mask may be only single-walled and provided at its rim with sealing projections 2 and 4, or it may be double-walled only in the region of said projections. Exhalation gas outlet aperture 7 interconnects interior 6 and space 5 and' outer wall .1 has gas outlet aperture 8. Non-return exhalation valves may be provided in said apertures. Walls 3 and 1 merge in the region of mount 11 for the edge of window 12, or each wall may have a window so that space 5 extends over the window area. At inhalation air is "drawn in through union 9 .and valve 10 and at exhalation' air flows from interior 6 through aperture 7 and space 5 to outlet 8. Aperture 7 'may be dispensed with, in which case the exhalation valve between interior 6 and space 5 is formed by lip 4. When the seal is formed' of a gas-pervious material, exhalation gas flow outwardly over the entire seal from space 5 and outlet 8 may be dispensed with. An additional exhalation valve may be arranged at the underside of the 'mask so that only part of the exhalation: gas is discharged through space 5. In Fig. 2 (not shown) the mask is provided with a window washing arrangement.
GB2859768A 1967-06-14 1968-06-14 A Respiratory Mask Expired GB1191793A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED0053324 1967-06-14

Publications (1)

Publication Number Publication Date
GB1191793A true GB1191793A (en) 1970-05-13

Family

ID=7054874

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2859768A Expired GB1191793A (en) 1967-06-14 1968-06-14 A Respiratory Mask

Country Status (6)

Country Link
CH (1) CH473592A (en)
CS (1) CS178804B2 (en)
DE (1) DE1708047C2 (en)
FR (1) FR1568686A (en)
GB (1) GB1191793A (en)
SE (1) SE332121B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4739755A (en) * 1986-10-17 1988-04-26 American Cyanamid Company Respirator
GB2211098A (en) * 1987-10-13 1989-06-28 Sabre Safety Ltd Respiratory protective apparatus
US4905683A (en) * 1985-03-22 1990-03-06 Dragerwerk Aktiengesellschaft Respirator mask for positive pressure respirator equipment
WO2004030766A1 (en) * 2002-09-30 2004-04-15 Be Intellectual Property, Inc. Full face flexible oxygen mask for use with flight helmets
GB2426712A (en) * 2005-05-31 2006-12-06 Draeger Safety Ag & Co Kgaa Breathing mask with valve module
CN1298304C (en) * 1995-05-19 2007-02-07 3M革新产权公司 Face shield
WO2008136021A1 (en) * 2007-05-02 2008-11-13 Officine Meccaniche Galli S.R.L. Inlet connector of an m90 nbc face mask provided with means for obtaining low respiratory resistance values both during inhaling and exhaling phases

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD130835B1 (en) * 1977-05-12 1979-03-28
FR2742667B1 (en) * 1995-12-21 1998-02-06 Schegerin Robert Element head pressure REGULATED zones, in particular for aircraft pilot

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE648997C (en) * 1937-08-12 Degea Ag Auergesellschaft Breathing mask for height breathing devices
FR757280A (en) * 1933-06-20 1933-12-22 Sepewe Eksport Przemyslu Obron Mask protective against the gas
DE730703C (en) * 1934-01-20 1943-01-15 Paul Guenther Dr Gas mask with consisting of flexible pads Abdichtkoerpern
US2005072A (en) * 1934-10-15 1935-06-18 William H Lea Breathing mask
US2381568A (en) * 1942-10-19 1945-08-07 Mark Cooney Gas mask
AT183068B (en) * 1953-05-08 1955-09-10 Metallgesellschaft Ag Centrifugal separator for separating solid and liquid suspended particles from gases
US3167070A (en) * 1961-06-14 1965-01-26 Silverman Leslie Respirator with positive air seal

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4905683A (en) * 1985-03-22 1990-03-06 Dragerwerk Aktiengesellschaft Respirator mask for positive pressure respirator equipment
US4739755A (en) * 1986-10-17 1988-04-26 American Cyanamid Company Respirator
GB2211098A (en) * 1987-10-13 1989-06-28 Sabre Safety Ltd Respiratory protective apparatus
GB2211098B (en) * 1987-10-13 1991-02-27 Sabre Safety Ltd Respiratory protective apparatus
CN1298304C (en) * 1995-05-19 2007-02-07 3M革新产权公司 Face shield
WO2004030766A1 (en) * 2002-09-30 2004-04-15 Be Intellectual Property, Inc. Full face flexible oxygen mask for use with flight helmets
US7278421B2 (en) * 2002-09-30 2007-10-09 Be Intellectual Property, Inc. Full face flexible oxygen mask for use with flight helmets
US8028700B2 (en) 2002-09-30 2011-10-04 Be Intellectual Property, Inc. Full face flexible oxygen mask for use with flight helmets
GB2426712A (en) * 2005-05-31 2006-12-06 Draeger Safety Ag & Co Kgaa Breathing mask with valve module
GB2426712B (en) * 2005-05-31 2007-08-29 Draeger Safety Ag & Co Kgaa Breathing mask
WO2008136021A1 (en) * 2007-05-02 2008-11-13 Officine Meccaniche Galli S.R.L. Inlet connector of an m90 nbc face mask provided with means for obtaining low respiratory resistance values both during inhaling and exhaling phases

Also Published As

Publication number Publication date
CS178804B2 (en) 1977-10-31
SE332121B (en) 1971-01-25
FR1568686A (en) 1969-05-23
CH473592A (en) 1969-06-15
DE1708047C2 (en) 1974-02-14
DE1708047B1 (en) 1970-10-08

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Legal Events

Date Code Title Description
414F Notice of opposition given (sect. 14/1949)
414C Case decided by the comptroller ** grants refused (sect. 14/1949)
CSNS Application of which complete specification have been accepted and published, but patent is not sealed