Title:
Respirator mask
United States Patent 2376871


Abstract:
SThe invention -des~ibed'herei-n'may be- manufattured and used lbY ofr'fhothee Gopernmrnt for :governmnental purposes, 'withoiut the -payment of Sany-royalty' thereon. 'This invention relates'to a respirator mask and -mire -parti-larly to. a respirator mask intartded -for-se with Aircraft...



Inventors:
Rudolph, Fink
Application Number:
US39501941A
Publication Date:
05/29/1945
Filing Date:
05/24/1941
Assignee:
Rudolph, Fink
Primary Class:
Other Classes:
128/206.28, D24/110.4
International Classes:
A62B18/02
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Description:

SThe invention -des~ibed'herei-n'may be- manufattured and used lbY ofr'fhothee Gopernmrnt for :governmnental purposes, 'withoiut the -payment of Sany-royalty' thereon.

'This invention relates'to a respirator mask and -mire -parti-larly to. a respirator mask intartded -for-se with Aircraft oxygen ecJltipment. 'It is'-ordinatily 'desirable 'that the mnembers of an alrplane 'crew' be - ble - to. communicate With -eah-other and- also-'with .pints -on the grotuid -while wearing their oxygenmasks. '"This is usually-accomplshedf by. positioning a .small micro'phorne n' the'maskig r front -f 'the .mouth. "However,-the -presen't types: ~if ma'sks do not, allow the-wearer thenidtloi of his thin Intatlking Without 'destroying the lt -'of" the -mask around the nose ad'dchin. 'Accordingly, o-oe b'the objects of'my .ivertiln is 'to provide 'a-rspirator mask whichipermits the-wearer the -ue of mIis mouth arid 'chinin an 'unrestricted imanner, -while still maiitalritng the desired: seal-f 'the mask to the face. "ThisAs-accomplished-by providingthe 'mask With- a- olIapsible "anad exten-sible -portion in .the vicinity f --the -"modtuh which :portion - xtiends aroiid-the mask' roi"-one'.jaw pivot to the other law -pivot thus' altotng'P -for -xpansion and tcntraftion 6btthe front.orithe mask in :accofdance with then-ovevents of the'wearer's jaw.

'Another -obect-df nyt Inventiof is-to provide a novel means for holding the respirator Tmask in position ron the' face:if'the wearer. 'This is :accomplished in the present instaneeby soý forming the oxygen- supply'tubes-that' they "will have a clamping action on the head of. the wearer Iand also-by the:provisiona f -a headtband'-with slide fasteners.attached.to the"oxygen supply tubes. -With these ad- other objects in view, the invention tconsists "in -the construction, combination, and-arrangement oft parts hereinafter set forth and claimed-with the understanding that the elements comprising my invention may be varied in construction, proportions and arrangement without departing from the spirit and scope 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 improved mask may be seen from Figures 1 and 2 S-t he'drawCig. --As there shown,' : indicates gen*erally the face -portiion of the mask. This portion is iorned'o6f- re'ilient·~iaterial' su'ch as rubber or tr-bberized fabric and is shaped -tofit the average icbfi'gutiOnt.n' f ,the ,tiaman face around the nose, bheeksýafrid chin, an'ir-tight-seal being formed ,either:by-'a' thin' tapered edge Ofthe material or 'a-rolled-edge 'sUch-as' that used in- bathing caps.

T-he ask isi'fofre'd'soas- 'to filt accurately over ao the wearer's nose 2, along, the contours of the l'cheelk'3,-::anid'aoun'dthe' ;aw and urider- surface 'of theo-hin' 4. :The ýmask- 'must also, be: formed so as to fit snugly in the hollow ex ting between the ase and bheek-which i- 'designatedd5 'on the idraWting. 'oAn irb space is ':eft in -ftont 'of the nostrils and m hiouth~ -S shown at- 6' in; iFigure -3 In orader, that the-,breathing will not- be interfered With and-.)lsoeto provide for'free -p'assage of the -oxygen. ':To:.pesmtit the: wearer -to miove -his jaw 20 'na free andi:unrestricted1manner, 'ribs or cOrrugations aire provided . around the m-ask, these corrugations, extendiig: from the ihinge point -f .netside oif.the'wearer''sjjaw-tbo theh inge pointof the other:side. Thus the.,-jaw may move up ;and down without destroying the fit 'of the mask around- the nose, ,orchin,:the!corrugations 1 providing saffelent fletXbility to:take ;up.this motion.

Positioned:in the center of the corrugated portion of thesmasm k isaa;"small :-crystal or carbon micrOphone 16whiich isiheld-tn lace by a headed .blt or)livet .- 1ipassing through themask. :If desired,-Athe amkaskimay- belslightly- thickened.in this area so-.as toprovide a.tetter support for the microphone. ::TUhus,: ith' the microphone placed in:front :of';theý mouth of, the 'wearer, the ,latter may talk freely'iinto the 'instrumentandd in this way communicateviithithe -other members of the crew. in-so doing;lh'e fit of :the :mask around the face!mill., ot e'dibe dydis virtu e, f the .0 bllowsiconstruction dn thefront:of the mask. ..To each side ,of .the mask ini the' vicinity of -the echeekrportionua 'therevis-;attached an oxygen supply tube 9. It is. desirablef that the oxygen be admitted at this point since this part of the mask remains stationary even during the motions of the chin and jaw in talking. These tubes extend up each side of the head to the crown thereof where they unite in a common tube 1 passing down the back of the head to a bellows 12 and thence to the source of oxygen supply. The bellows 12 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 11 are made of molded rubber and are so shaped as 65 to give a clamping action on the head, thereby 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 10 and the mask may be made to fit different individuals by sliding the tubes 9 in or out of joints 10 until a proper fit is arrived at whereupon the tubes are cut off and cemented in place.

A fabric headband 13 fits snugly around the top of the head and aids in supporting the mask.

To this end, slide fasteners 14 are provided which 1 encompass the tubes 9, as shown, and which are slidable along the band 13. By sliding the tubes 9 forward along the band 13 the pressure of the mask against the face may be relaxed, while by sliding the tubes backward the pressur e.may be ] increased. A loop of fabric 15 fastened- to the' headband 13 encircles the supply tube: 1. -and. serves to keep it centrally located on the back of the head.

It will thus be seen that I have provided a: respirator mask which allows the wearer unrestricted use of his mouth and chin in talking into the microphone without breaking the' seal of the mask around the nose or chin. It will also be seen that I have devised a novel means o for utilizing the fluid supply tubes to hold the mask in place on the face of the wearer as well as a means for slidably adjusting these tubes along the headband so as to control the pressure of the mask against the face.

Having thus described my invention what I claim* as new and what I desire to secure by Letters Patent is: 1. A respirator mask comprising. a layer of resilient material having such shape as to fit and contact accurately that portion of the face of the wearer around the nose, cheeks and chin and protruding outwardly from the mouth and nostrils where said layer is formed with horizontal corrugations extending around the sides of the mask as far as. the hinge points of: the wearer's jaw. for the purpose of permitting the free and unrestricted use of the mouth and chin of the wearer in talking without .destroying the fit of the mask. 2.A respirator mask comprising a layer .of resilient material having such shape as to fit and contact accurately that portion of the face of the wearer.around the nose, cheeks and 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 mask and extending upwardly to the crown of the head, a single conduit formed by the union of said individual conduits at the crown of the head, said single conduit passing down the back of the head and thence to the fluid supply, said conduits all being molded out of a resilient material and having their lower ends toed in toward one another so as to provide a clamping action on the head when the mask is in place and thereby yieldingly hold the -latter in place on the face of the wearer.

3. A respirator mask comprising a layer of resilient material having such shape as to fit the face of the wearer around the nose, cheeks and chin, and spaced from the face in the vicinity of y the mouth and nostrils, a fluid-conveying conduit attached to each side of the mask and extending upwardly along each side of the wearer's head to the crown thereof,i a single conduit formed by the union of said individual conduits 0 at the crown of the head, said single conduit passing down the back of the head and thence to the fluid supply, said conduits all being molded out of a resilient material and having their low;er ends toed in toward one another so as to provide a clamping action on the head of the wearer and thus serve to yieldingly hold the mask in place on the face, a headband fitting around the upper portion of the wearer's head, and a slide fastener joining each of said conduits to said o- band to enable the pressure of the mask against the face exerted by said conduit to be varied by slidably adjusting said conduits along said band.

4. A respiratory mask comprising a layer of resilient material having a peripheral portion Sshaped to snugly fit the face of the wearer around the nose, cheeks and chin, and a central portion protruding outwardly from the wearer's mouth and nostrils, said peripheral portion being relatively thick in cross section and said central portion being relatively thin in cross section anid provided with horizontal corrugations so as to afford the wearer the free and unrestricted use of his mouth and chin without destroying the fit of the peripheral portion upon the face.

S 5. A respiratory mask comprising a" layer of resilient material having a peripheral portion shaped to closely follow and snugly fit the contours of the wearer's face around the under part of the chin and along each jaw to a point just forward of the ear from whence it proceeds upwardly over each cheek bone to the bridge of the nose; and a central portion protruding outwardly from the wearer's mouth and nostrils, said peripheral portion being relatively thick iand. inflexible and said central portion being relatively thin and flexible and provided with horizontal corrugations so as to afford the wearer the free arid unrestricted use of 'his mouth arid chin without destroying the fit of the peripheral, portion upon the face.

6. The inventioi as defined in claim 5, wherein a fluid-inlet means is located on either side of said mask in the vicinity of the-jaw hinge of the wearer.

7. The invention as defined Tn claim 4 wherein a microphone is provided within said maskiin front of the mouth of the wearer, said microphone being secured to said corrugated central portion by a single point of attachment.

RUDOLPH FINK.