US2376871A - Respirator mask - Google Patents

Respirator mask Download PDF

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Publication number
US2376871A
US2376871A US395019A US39501941A US2376871A US 2376871 A US2376871 A US 2376871A US 395019 A US395019 A US 395019A US 39501941 A US39501941 A US 39501941A US 2376871 A US2376871 A US 2376871A
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Prior art keywords
mask
wearer
head
face
mouth
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Expired - Lifetime
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US395019A
Inventor
Fink Rudolph
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Fink Rudolph
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    • 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
    • A62B18/025Halfmasks

Description

May 29, 1945.

R. FlNK RESPIRA'I'OR MASK Filed May 24, 1941 RUDOLPH {Tree/vars PatentedMa'y 29, 1945 :.o;1=:1=,1:;c-E l h 2,376,871" Q l "F msPmA'roa vmsK'" I Rud'o'lph Fink, nayteng omo- J msm 'utaMay-aa 194i,'lseiiaiirt;$9s;qi9;

mam. (cures- 146 liiGtalntdi underlthe act otlMarch 3 1883, as

a jamm dentral), 1928;:370 grouse) The invention"deseribedrherem'maybe? manu- 'rac'turedand'u'sedbyori'fortheGoverhmentfor :govemnental 'purposes;"withou'tthe'payment of anyroya lty'therebn.

"This invention r ljatesitoa' respirator inaskfand more particdlaiqyto a respirator mask fintenfc'led ioruse'w'it'h aircraftoxygen' equipment; j i 7 It is ordinarily "'des'irab'lej that the" ,nfmbers of ian 'airpl'ane *ereWbe'abIeJto ct nrnnu'nicate}v with 'eaehother and'al'so'withljpomts on i the 'f'grbufid while wearing 'theiroxygen" masks. This is 'usu- "ails/accomplished positioning; 'a sm'all microphone' intlre'mask'm front 'bf't'he mouth. "How- -ever,'thefpresenttypes 1 tr fnrasks "do not allow therwearer the'motion offhiis intalkmg-w'i'th- "out destroying'jthe iit orthe mask aroundfthe nose 'andichin; fl lwmnnsly; the t-tithe objects or'my'invention' is. to? provide a "re's pirator mask whi nwern'iits thewearer theuse' 'ofi'his mouth and cliinfiri: an i unrestricte'dfl manner, whi1e still maintain n the desired. sear'of'the' mask to "the face. 'TTlnsfistaccomplishedbyproviding'the mask witna'eoliaps'ihle"and extensibl'e portiondnit'he vicinity or the mouth 1 which ;portion extends arourid the'maskiironffoneijaw pivot to thepther iaw'pivot thus aiiomng itorfiexpansion and contraction oi'the irontiofthemask iniacco'r'dance with the'mdvements'oi thewearersjaw.

*Another-objectof my invention isfto provide a novel means for holding ,the respirator' 'm'ask in position on the iacetoitherwearer "This is :.ac compli'shed in the pre'sent instance byso forming the oxygen supp1y"tubes"that' thefwillhavea clamping action on the head of. the weareran'd alsoby thef'provisiomof "ahea'db'arid'with slide iastenersattached'to tnepxygensupply tubes;

FWith these and'other objects "in v'iew,.ithe invention *cons-istsr in'ithe construction, "combination, andarrangement of" parts "hereinafter set forthand'wclaimewwith the understanding that the elements comprising my invention may be varied in construction, proportions and arrangement without departing from the of the appended claims.

In the drawing:

Figure 1 is a front view of the mask showing the manner in which it fits on the face of the wearer and also the means for holding it in place on the head,

Figure 2. is a side elevation of the same; and

Figure 3 is a sectional elevation showing in detail the spacing between the mask and the nostrils and mouth of the wearer.

The general form and construction of my imof -the drawing. "there shown; i indicatesgenerally the face 'pertiono'f the mask. This portion armed of resilienfmaterialfsuch asrubber or bberize'd fa ric andisshapedtofit'the average moriifl'gui aition'bfthe Shumanface arou fid" the nose, -oheeks and chin; ain ai'r' tightseal beingformed *eitherby -a 'thin taperedjedge of th'e material o a'=ro'l1ededgei-sirehhas that usedinbathing caps. @hemask} is forrrred soasto' accurately over the wearers noseflfialong "the-contours 'of "the anwalroundg the' Saw and under-surface or the ehin 49 mm m'afSk- 'n1iZiSta'iSUbe? formed so as to fit snugly in the hollow xiisfti-n'g betw'een the nose aind eheek whieh designatd S on the drawing; nn-fair spacefii'sj lei nostrils and-lmouth as show -a, G sh Figures order: that the breathingwilr not be interte'red with and 'also to' provide for' free pas'sage of the oxygen; 1T0:permit the wearer to move his jaw ain a free andunrestri'cted manner;ribsor corrugations :are provided around ,the rria'sk,' these "corrugations extending. rom fthe hinge pointof onelsi'de 'of the wearers awto 'lthe hinge pointof the other-aside. ",i' lhus thekfiaw mayimove up and down without destroying the fit 0f the mask around ithe nose;iorzchinttheicorrugationsii providing suflcient flexibility to take iupthis motion.

Positionedlin the center of the corrugated portion of thetzmask m'szia: small (crystal :or carbon microphone .ificwhichiis'lheldzinqalaceby a; headed orriivet .l lsipassingu through "the I mask. =iIf 'fdesiredgme maskimay: bes'sli'ghtly:Ethickened in vthis'iarea so'zas.to-provide;albetter support foicthe microphone. ":zT-hus; withthe microphone. placed inzifront rofiathez amouth i'of the wearer, the .latter may talk .free'lyl-:iritoothefihstrument and in this way communicateswiithhhetother members e'of' the spirit and scope proved mask may be seen from Figures 1 and 2 the dac'ez willmot ibe disturbed rby :i virtue of the thence to the source of oxygen supply. The bellows I2 is provided to permit free movement of the head of the wearer despite any stiffness on the part of the supply tube. The tubes 9 and II are made of molded rubber and are so shaped as to give a clamping action on the head, thereby in front ofthe I along the headband so serving to hold the mask firmly in place on the face of the wearer. The tubes 9 slidably enter the mask through a sleeve joint I and the mask' may be made to fit difierent individuals by sliding the tubes 9 in or out of joints [0 until a pro-per fit isarrived at whereupon the tubes are cut off and cemented in place. i

A fabric'headband l3 fits snugly around the top of the head and aids in supporting the mask. To this end, slide fasteners I4 are provided which encompass the tubes 9, as shown, and which :are V slidable along the band 13. By sliding the tubes;

9 forward along the band l3 the pressureof the mask against the face may be relaxed; 1while by.

sliding the tubes backward the pressuregnay be 7 3. A respirator mask comprising a layer of resilient material having such shape as to fit the face of the wearer around the nose, cheeksand chin, and spaced from-the face in the vicinity of the mouth andnostrils, a fluid-conveying conduit attached to each side of the mask and extending upwardly along each side of the wearers head to the crown thereof, a single conduit formed bythe-unionof said-individual conduits 10.

passing down the back of the head and thence to the fluid supply, said conduits all being molded at the crown of the head, said single conduit out of a resilient material and havingtheir lowincreased. A loop of fabric" I5 *fastened' to'fthe headband l3 encircles the supply tube; 'l l...;an :l v

serves to keep it centrally-located on th back of the head.

It will thus be seen that I have -provided 'a respirator mask which allows the wearer unr e stricteduse of hismouth and chin in talking resilient material havingsuch Shape as to fitand contact accurately that portionof the face; of

r the. wearer around the nose, cheeks and chinrand protruding-outwardly ,from the mouth and nostrils .where said layer. is formed withhorizonta r ti nsxtending, around the sides .of. the maskqas far asthehinge points; of; the

wearer's jaw. for. the, purpose voftpermittingthe free and unrestricteduse. oft the mouth, and chin of the wearerin talking .without destroying the fit of the mask. v I L- 2, Arespirator maskxcomprising, .a layeryof .resilientimaterial having'flsuch' shape as to nt and contactaccurately that portion of: the ..-face of the wearerraroundthenose, vcheeksand chin and protruding. outwardly from. the face in, the vicinity of the mouth .and nostrils, an individual fluid-conveying. conduit attached: to each side .of said maskand extendingupwardly to thelcrown of the head, a single conduit formed by the; union of said individual conduitsLat the crown of the head, said single conduitipassing down the back ofthe head and thence to the fluidsupply, said conduits all beingmolded outv of a resilient ma.-

-terial andhaving their lower endstoed in toward one; another so as to provide a clamping action on the head when the mask isin place and thereby yieldingly hold the latter. in place on the faceof thewearer 3.5L I

as. new and what I; desire to secure .by

per ends toed in toward one another so as to provide acIamping action on the head of the wearer and thusser've to yieldingly hold the mask in place on the face, a headband fitting around the upper portion of the wearers head, and a slide fastener joining each of said conduits to said band to enable the pressure of the mask against theface exerted by said .conduit to bevaried by slidably' adjusting said conduits along said band. 4. A respiratory mask comprising a'layer of resilient material having aperipheraI portion shaped to snugly fit the 'facebf the wearer- "around the nose, cheeks and chin, .anda central portion protruding outwardly from "the wearer's mouth and nostrils, said peripheral portion being 7 relatively thic'kin cross section and said central wearer.

Dorm being relatively thin o s sewionahd provided with horizontal corrugationssd as'fto afford the wea'rer the free 'and'unrestricted use of his mouth'and chin' without destroying the fit of the peripheral portion upon the face.

5;] A respiratory mask comprising a layer of resilient material having a peripheral portion shaped to closely followand snugly'fitthe 0on5 tours of the wearer's face around-theunder part of the chin and along each jaw to apoint just forward of'the ear fromwhence'it'procee dsupwardlyo'ver each cheek'bo'nef to the bridge' of the nose; and a central portion protruding outwardly fromjth'e wearers' niouth and nostrila 'said. fi ripheral portion being relatively' thick "and, in"- flxible and said cen't'ralportion bing'relatively thin and flexible and provid'eifwith horizontal corrugations. so as to" more; he: wearer the rise and unrestrictediu s'ef of "his mouth" and. "chin without destroying'theffit of the" peripheral. portionupon the facel' a e. The inventiozias hefiheaiih 'ci'ai'ni'lsj wherein a" fluid-inlet means is locatedflon' eitherslde of said mask in the vicinity of theijavv hinged: the

7.-The invention as defined in claim 4 "wherein a microphone is provided within saidfmask'in front or the mouthof the 'wearnTs'aidmicrophone being secured to saidcorrugated central portionby a .singlefpoint of attachment

US395019A 1941-05-24 1941-05-24 Respirator mask Expired - Lifetime US2376871A (en)

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Cited By (63)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3220409A (en) * 1961-03-28 1965-11-30 Johnson & Johnson Face mask
US3683907A (en) * 1970-07-20 1972-08-15 Mine Safety Appliances Co Fresh air respirator
US3799164A (en) * 1971-08-12 1974-03-26 Du Pont Analgesic apparatus
US4297999A (en) * 1979-07-19 1981-11-03 Kitrell John V Portable resuscitation apparatus
US4537276A (en) * 1984-09-07 1985-08-27 American Sterilizer Company Mask/microphone system for voice actuated control
EP0264772A1 (en) * 1986-10-17 1988-04-27 Bilsom AB Respirator
US4848366A (en) * 1986-08-12 1989-07-18 Cybernetic Systems, Inc. Exhaust mask system and device
US4878491A (en) * 1988-09-23 1989-11-07 Mcgilvray Iii Donald A Exercise snorkel apparatus
US5694927A (en) * 1995-11-08 1997-12-09 Bohmfalk; George L. Disposable mask and suction catheter
US5697362A (en) * 1995-09-27 1997-12-16 Albrecht; Glenn C. Swimming device
US6019101A (en) * 1996-10-31 2000-02-01 Sleepnet Corporation Nasal air mask
US6029660A (en) * 1996-12-12 2000-02-29 Resmed Limited Substance delivery apparatus
US6044844A (en) * 1996-12-02 2000-04-04 Resmed Limited Mask and harness assembly
USD423096S (en) 1997-02-25 2000-04-18 Resmed Limited Nasal mask cushion
US6112746A (en) * 1996-07-26 2000-09-05 Resmed Limited Nasal mask and mask cushion therefor
US6119693A (en) * 1998-01-16 2000-09-19 Resmed Limited Forehead support for facial mask
US6123071A (en) * 1993-06-18 2000-09-26 Resmed Limited Facial masks for assisted respiration or CPAP
US6123082A (en) * 1996-12-18 2000-09-26 Resmed Limited Device for preventing or reducing the passage of air through the mouth
US20020117177A1 (en) * 1996-12-02 2002-08-29 Kwok Philip Rodney Harness assembly for a nasal mask
US20030019495A1 (en) * 2001-05-18 2003-01-30 Palkon David J. Mask cushion and method of using same
US6513526B2 (en) 1996-07-26 2003-02-04 Resmed Limited Full-face mask and mask cushion therefor
US6561191B1 (en) 1997-02-10 2003-05-13 Resmed Limited Mask and a vent assembly therefor
US6561190B1 (en) 1997-02-10 2003-05-13 Resmed Limited Mask and a vent assembly therefor
US6631718B1 (en) 1999-06-08 2003-10-14 Sleepnet Corporation Air mask with seal
US20040045550A1 (en) * 2002-01-01 2004-03-11 Bernd Lang Breathing mask arrangement and a forehead support device for same
US20040182398A1 (en) * 2003-03-22 2004-09-23 Tom Sprinkle Nasal mask
USD498529S1 (en) 1996-07-26 2004-11-16 Resmed Limited Portion of a cushion for use with a mask assembly in the application of continuous positive airway pressure (CPAP)
US20050005940A1 (en) * 2003-04-10 2005-01-13 Resmed Limited Mask with integral cushion and forehead piece
US20050241642A1 (en) * 2003-11-12 2005-11-03 Krzysztofik J M Breathing respirator
US20050241644A1 (en) * 2004-04-09 2005-11-03 Resmed Limited Nasal assembly
US7100610B2 (en) 2000-10-19 2006-09-05 Map Medizintechnologie Gmbh Breathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas
US20060196509A1 (en) * 2000-05-15 2006-09-07 Resmed Limited Respiratory mask having gas washout vent & gas washout vent assembly for a respiratory mask
US7210481B1 (en) 1999-06-08 2007-05-01 Sleepnet Corporation Nose mask
US7290546B2 (en) 2002-03-22 2007-11-06 Invacare Corporation Nasal mask
US20070266484A1 (en) * 2006-04-20 2007-11-22 Euromaski Oy Protective device
US7320323B2 (en) 2001-10-22 2008-01-22 Map Medizin-Technologie Gmbh Breathing mask device and application device and frontal support device thereof
US20080066761A1 (en) * 2006-09-18 2008-03-20 Invacare Corporation Breathing mask
US7406965B2 (en) 2003-05-05 2008-08-05 Resmed Limited Forehead support for facial mask
US20080190435A1 (en) * 2007-02-14 2008-08-14 Conrad Hansen Infant nasal cannula
US20080304690A1 (en) * 2007-06-11 2008-12-11 Harold Timothy Poindexter Mouth shield for microphones
US20090032026A1 (en) * 2007-08-02 2009-02-05 Resmed Limited Mask
US20110030692A1 (en) * 2003-05-02 2011-02-10 Resmed Limited Mask system
US7967014B2 (en) 2001-10-22 2011-06-28 Map Medizin-Technologie Gmbh Application device for breathing mask arrangement
US8353294B2 (en) 2004-06-16 2013-01-15 Resmed Limited Respiratory mask assembly
US20130037022A1 (en) * 2011-08-08 2013-02-14 Paula Reynolds Cpap stabilizing hat
US8485192B2 (en) 2005-01-12 2013-07-16 Resmed Limited Cushion for patient interface
US8517023B2 (en) 2007-01-30 2013-08-27 Resmed Limited Mask system with interchangeable headgear connectors
US8522784B2 (en) 2008-03-04 2013-09-03 Resmed Limited Mask system
US8522785B2 (en) 2002-08-05 2013-09-03 Resmed Limited Inextensible headgear and CPAP or ventilator mask assembly with the same
US8869797B2 (en) 2007-04-19 2014-10-28 Resmed Limited Cushion and cushion to frame assembly mechanism for patient interface
US8944061B2 (en) 2005-10-14 2015-02-03 Resmed Limited Cushion to frame assembly mechanism
US9072853B2 (en) 2001-09-07 2015-07-07 Resmed Limited Forehead pad for respiratory mask
USD740932S1 (en) * 2013-09-24 2015-10-13 3M Innovative Properties Company Respirator with raised face seal flexing region
US9381316B2 (en) 2005-10-25 2016-07-05 Resmed Limited Interchangeable mask assembly
USD776258S1 (en) * 2013-09-24 2017-01-10 3M Innovative Properties Company Respirator with face seal multiple flexing region
USD787660S1 (en) * 2014-05-22 2017-05-23 3M Innovative Properties Company Respirator mask having a face seal flexing region
USD787659S1 (en) * 2013-09-24 2017-05-23 3M Innovative Properties Company Respirator with face seal flexing region
US20180000173A1 (en) * 2016-06-29 2018-01-04 Garry Tsaur Mask With a Sound-transmitting Structure
US9907922B2 (en) 2012-09-04 2018-03-06 Fisher & Paykel Healthcare Limited Valsalva mask
USD823455S1 (en) 2017-02-23 2018-07-17 Fisher & Paykel Healthcare Limited Cushion assembly for breathing mask assembly
USD823454S1 (en) 2017-02-23 2018-07-17 Fisher & Paykel Healthcare Limited Cushion assembly for breathing mask assembly
USD824020S1 (en) 2017-02-23 2018-07-24 Fisher & Paykel Healthcare Limited Cushion assembly for breathing mask assembly
US10220171B2 (en) 2011-04-15 2019-03-05 Fisher & Paykel Healthcare Limited Interface comprising a rolling nasal bridge portion

Cited By (166)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3220409A (en) * 1961-03-28 1965-11-30 Johnson & Johnson Face mask
US3683907A (en) * 1970-07-20 1972-08-15 Mine Safety Appliances Co Fresh air respirator
US3799164A (en) * 1971-08-12 1974-03-26 Du Pont Analgesic apparatus
US4297999A (en) * 1979-07-19 1981-11-03 Kitrell John V Portable resuscitation apparatus
US4537276A (en) * 1984-09-07 1985-08-27 American Sterilizer Company Mask/microphone system for voice actuated control
US4848366A (en) * 1986-08-12 1989-07-18 Cybernetic Systems, Inc. Exhaust mask system and device
EP0264772A1 (en) * 1986-10-17 1988-04-27 Bilsom AB Respirator
US4878491A (en) * 1988-09-23 1989-11-07 Mcgilvray Iii Donald A Exercise snorkel apparatus
US6123071A (en) * 1993-06-18 2000-09-26 Resmed Limited Facial masks for assisted respiration or CPAP
US5697362A (en) * 1995-09-27 1997-12-16 Albrecht; Glenn C. Swimming device
US5694927A (en) * 1995-11-08 1997-12-09 Bohmfalk; George L. Disposable mask and suction catheter
US20040094159A1 (en) * 1996-07-26 2004-05-20 Resmed Limited Breathing mask and mask cushion therefor
US20070107735A1 (en) * 1996-07-26 2007-05-17 Resmed Limited Mask
US20070261697A1 (en) * 1996-07-26 2007-11-15 Resmed Limited Cushion and mask therefor
US7178527B2 (en) 1996-07-26 2007-02-20 Resmed Limited Nasal mask and mask cushion therefor
US6112746A (en) * 1996-07-26 2000-09-05 Resmed Limited Nasal mask and mask cushion therefor
US7069933B2 (en) 1996-07-26 2006-07-04 Resmed Limited Breathing mask and mask cushion therefor
US7243651B2 (en) 1996-07-26 2007-07-17 Resmed Limited Cushion and mask therefor
US7950392B2 (en) 1996-07-26 2011-05-31 Resmed Limited Cushion and mask therefor
US8813748B2 (en) 1996-07-26 2014-08-26 Resmed Limited Full-face mask and mask cushion therefor
US9463295B2 (en) 1996-07-26 2016-10-11 Resmed Limited Mask and mask cushion therefor
US6581602B2 (en) 1996-07-26 2003-06-24 Resmed Limited Nasal mask and mask cushion therefor
US8636006B2 (en) 1996-07-26 2014-01-28 Resmed Limited Mask
US8056561B2 (en) 1996-07-26 2011-11-15 Resmed Limited Full-face mask and mask cushion therefor
US6513526B2 (en) 1996-07-26 2003-02-04 Resmed Limited Full-face mask and mask cushion therefor
US8522783B2 (en) 1996-07-26 2013-09-03 Resmed Limited Cushion and mask therefor
US6871649B2 (en) 1996-07-26 2005-03-29 Resmed Limited Nasal mask cushion assembly
US6357441B1 (en) 1996-07-26 2002-03-19 Resmed Limited Nasal mask and mask cushion therefor
US20050022818A1 (en) * 1996-07-26 2005-02-03 Resmed Limited Cushion and mask therefor
US6634358B2 (en) 1996-07-26 2003-10-21 Resmed Limited Nasal mask cushion assembly
US6701927B2 (en) 1996-07-26 2004-03-09 Resmed Limited Full-face mask and mask cushion therefor
USD498529S1 (en) 1996-07-26 2004-11-16 Resmed Limited Portion of a cushion for use with a mask assembly in the application of continuous positive airway pressure (CPAP)
US9421339B2 (en) 1996-07-26 2016-08-23 Resmed Limited Patient interface
US6019101A (en) * 1996-10-31 2000-02-01 Sleepnet Corporation Nasal air mask
US6494207B1 (en) 1996-12-02 2002-12-17 Resmed Limited Harness assembly for a nasal mask
US6044844A (en) * 1996-12-02 2000-04-04 Resmed Limited Mask and harness assembly
US20020117177A1 (en) * 1996-12-02 2002-08-29 Kwok Philip Rodney Harness assembly for a nasal mask
US7036508B2 (en) 1996-12-02 2006-05-02 Resmed Limited Harness assembly for a nasal mask
US20070267021A1 (en) * 1996-12-02 2007-11-22 Resmed Limited Harness assembly for a nasal mask
US6029660A (en) * 1996-12-12 2000-02-29 Resmed Limited Substance delivery apparatus
US6123082A (en) * 1996-12-18 2000-09-26 Resmed Limited Device for preventing or reducing the passage of air through the mouth
US6561191B1 (en) 1997-02-10 2003-05-13 Resmed Limited Mask and a vent assembly therefor
US8122886B2 (en) 1997-02-10 2012-02-28 Resmed Limited Respiratory mask assembly with vent
US6561190B1 (en) 1997-02-10 2003-05-13 Resmed Limited Mask and a vent assembly therefor
US7845354B2 (en) 1997-02-10 2010-12-07 Resmed Limited Mask and vent assembly therefor
US8833371B2 (en) 1997-02-10 2014-09-16 Resmed Limited Mask and vent assembly therefor
US20070101998A1 (en) * 1997-02-10 2007-05-10 Resmed Limited Respiratory mask assembly with vent
US7207335B2 (en) 1997-02-10 2007-04-24 Resmed Limited Mask and vent assembly therefor
US8826910B2 (en) 1997-02-10 2014-09-09 Resmed Limited Mask and vent assembly therefor
USD428987S (en) 1997-02-25 2000-08-01 Resmed Limited Nasal mask shell
USD435650S (en) 1997-02-25 2000-12-26 Resmed Limited Combined nasal mask shell and cushion
USD423096S (en) 1997-02-25 2000-04-18 Resmed Limited Nasal mask cushion
US6119693A (en) * 1998-01-16 2000-09-19 Resmed Limited Forehead support for facial mask
US6631718B1 (en) 1999-06-08 2003-10-14 Sleepnet Corporation Air mask with seal
US7219669B1 (en) 1999-06-08 2007-05-22 Sleepnet Corporation Nose mask
US7210481B1 (en) 1999-06-08 2007-05-01 Sleepnet Corporation Nose mask
US7926487B2 (en) 2000-05-15 2011-04-19 Resmed Limited Respiratory mask having gas washout vent and gas washout vent assembly for a respiratory mask
US20060196509A1 (en) * 2000-05-15 2006-09-07 Resmed Limited Respiratory mask having gas washout vent & gas washout vent assembly for a respiratory mask
US8528558B2 (en) 2000-05-15 2013-09-10 Resmed Limited Respiratory mask having washout vent and gas washout vent assembly for a respiratory mask
US8371301B2 (en) 2000-10-19 2013-02-12 Resmed R&D Germany Gmbh Breathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas
US8746250B2 (en) 2000-10-19 2014-06-10 Resmed R&D Germany Gmbh Breathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas
US9662467B2 (en) 2000-10-19 2017-05-30 Resmed R&D Germany Gmbh Breathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas
US7100610B2 (en) 2000-10-19 2006-09-05 Map Medizintechnologie Gmbh Breathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas
US7775209B2 (en) 2000-10-19 2010-08-17 Map Medizintechnologie Gmbh Breathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas
US7007696B2 (en) 2001-05-18 2006-03-07 Tiara Medical Systems, Inc. Mask cushion and method of using same
US20030019495A1 (en) * 2001-05-18 2003-01-30 Palkon David J. Mask cushion and method of using same
US9072853B2 (en) 2001-09-07 2015-07-07 Resmed Limited Forehead pad for respiratory mask
US10195385B2 (en) 2001-09-07 2019-02-05 Resmed Limited Forehead pad for respiratory mask
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