US2529106A

US2529106A - Combined hood and respirator

Info

Publication number: US2529106A
Application number: US786914A
Authority: US
Inventors: George H Schauweker
Original assignee: American Optical Corp
Current assignee: American Optical Corp
Priority date: 1947-11-19
Filing date: 1947-11-19
Publication date: 1950-11-07
Anticipated expiration: 1967-11-07

Description

NW. 7, 1950 G. H. SCHAUWEKER 2,529,106

I COMBINED noon AND RESPIRATOR Filed Nov. 19', 1947 2 Sheets-Sheet 1 INVENTOR. eaozee H. scHAuwEKER AT TO RNEY Nov. 7, 1950 s. H. SCHAUWEKER COMBINED noon AND RESPIRATOR 2 Sheets-Sheet 2 Filed Nov. 19, 1947 R E K m R 0U TA mH C VS E G R O E G AIILRNEY Patented Nov. 7, 1950 2,529,106 7 COMBINED noon AND RESPIRATOR George H. Schauweker, SouthbridgqiMass, assignor to American Optical Company, Southbridge, Mass., a voluntary association of Massachusetts Application November 19, 1947, Serial No. 786,914

This invention relates to a combined hood and respirator and has particular reference to hoods adaptable for attachment to respirators and having transparent windows located therein.

It is common practice in this field to provide respirators with face shields and hoods. However, it is uncommon to find combined hoods and respirators wherein the hoods may be interchangeable with a number of respirators and have means for removably securing in the front portions thereof transparent eye shields or windows.

Therefore, it is an important object of this invention to provide an improved head 'portecting hood adaptable for and interchangeable with various types of respirators.

Another object is the provision of means in the hood for the removable securement of transparent eye shields or windows.

Another object is the provision of a hood shaped to cover the entire head of a wearer and extending downwardly to drape over the wearers shoulders and having means for easily securing the hood to and detaching it from a respirator.

Other objects of the invention are to provide a hood of such construction as to give maximum protection to the head of the wearer, to provide inconspicuous and secure attachment of the hood to a respirator and of a window to the hood, and to provide a hood of light weight and neat appearance.

Further objects are to provide in a manner as hereinafter set forth a hood adapted for attachment to a respirator which is simple in its construction, durable, thoroughly efficient in its use, readily attachable and detachable, and comparatively economical to manufacture.

Other objects and advantages of the invention will become apparent from the following description taken in connection with the accompanying drawings, in which:

Fig. 1 is a perspective view of a combined hood and respirator embodying the present invention;

Fig. 2 is a sectional view taken substantially on line 2--2 of Fig. 1;

Fig. 3 is a sectional view taken on line 3+3 of Fig. 1;

Fig. 4 is a sectional view taken on line i l of Fi 1;

Fig. 5 is a sectional view taken on line 5-5 of Fig. 4;

Fig. 6 is a vertical section taken through the fastening means to close the opening in the front of the hood; v

Fig. 7 is a fragmentary front elevation of a 14 Claims. (Cl. 128141) 2 preferred type of window mounted in the front of the hood; and

Figs. 8 and 9 are fragmentary front elevations of modified types of windows for the hood.

Referring more particularly to the drawings wherein like characters of reference designate respirator including a face piece I2 shaped to snugly fit over the lower portions of the wearers 4 piece 12.

face, covering entirely the nose and mouth, and being held securely in position by a headband l3 connected to opposite sides of the face piece l2 and adapted to extend around the wearers head.

The usual inhalation means is provided on the face piece l2 in the nasal region thereof and is illustrated asa cylindrical filter cartridge Id attached by suitable means to a plate-like supporting member 15 located on the front of the face The usual exhalation means is provided adjacent the mouth of the wearer and is shown as a depending tubular member E6 on the face piece l2. The walls of the face piece l'2 are pliable and shaped to conform generally to the shape of the wearers face and when drawn snuglythereagainst by tightening the straps [3 the edges thereof provide an air tight seal therearound. This will prevent foul air, gases or the like from reaching the respiratory tract of the wearer. V

The respirator alone however does not protect the head of the wearer from foreign materials such as emery dust, sand or bits of metal which may be present in the air and which might cause injury to the face and'particularly to the eyes of the wearer. Therefore a hood IE1 is provided for attachment to the respirator and may be made of any suitable fabric such as nylon, silk, canvas, or the like and may be chemically treated for waterproofing if desired. The hood H] comprises a cap portion .ll having a substantially disc-shaped top portion l8 with a depending marginal strip l9 stitched thereto and a visor 2% attached on the front thereof. The cap portion I1 is provided with an interior perspiration absorbing liner 2! shaped substantially to the shape of the cap portion I] and having a depending marginal portion 22 stitched along its lower edge to the outer portion 59, the lining 2| having a rear cut outsection 23'the ends of which are joined by an elastic band 24 (Fig. 4), the band being stitched or otherwise secured at each end to the marginal portion 22 'of'the liner and being provided as a 3. means for fitting the hood to various shapes and sizes of heads.

The visor 29 has a stiffener 25 formed of leather or the like located between the upper and lower coverings 2'6 and 21 respectively (Fig. 3), the upper covering 26 being secured at one end to the cap portion I9 and at its other end to one end of the lower covering '27 which in turn is connected at its other end to the liner 22.

The remainder of the fabric hood i is formed in three sections, two

portions

28 and 29 forming a front panel, and a rear panel 30, the frontal portions being stitched together or otherwise connected centrally of the hood below the visor 2E and adapted to drape downwardly, each having an eye 3! located in its lower regions. The frontal portions 28 and29 are secured at their upper ends to the cap portion l1 and may for strength have a reinforcing strap 32 located integral with this seam. The

portions

28 and 29 extend slightly rearwardly and are connected to the rear panel 30 as indicated in Fig; 1, the rear panel 35] also being connected at its upper end to the cap portion H, and being adapted to drape downwardly to a point below the shoulders of the wearer. Thus, there is formed a hood completely covering the head of the wearer, the sides of the hood near the seams formed by connecting the

frontal portions

28 and 29 to the rear panel 30 having cut out portions to adapt the hood to properly fit over the shoulders of the wearer, and thereby providing downwardly draped coverings for the upper chest and back of the wearer.

A strap 33 formed of any suitable material is secured to the lower end of the rear portion 30, the strap having ends adapted to extend under the arms of the wearer and to be tied to the eyes 3| located in the

frontal portions

28 and 29. Thus, the hood may be securely and snugly held in place.

The upper end of the panel formed b joining the

frontal portions

28 and 29 has a cut out por tion immediately below the visor 29. This cut out portion has a marginal reinforcement or frame 34 bordering the sides and lower edge thereof formed of leather or the like and secured by stitches or other suitable means to the panel (Fig. 7), the frame. 34 being substantially U-shaped in section to form a bezel adapted to receive a window or eye shield 35formed of transparent flexible sheet material such as synthetic plastic or the like, the window being adapted to be inserted from the top of the cut out portion and slid downwardly within the bezel or frame 34, and having been previously shaped to the contour of the cut out portion. Lateral strips 36 and 37 abut the upper edge of the window on the front and rear sides respectively (Fig. 3) and are connected to the upper ends of the frame 34. The front strip 36 is provided with a number of connection members 38 which are adapted to cooperate with other connection members '39 secured to a flap 40, the flap being secured by stitches or the like to a lateral tab 4| secured to the under side of the visor 20. Thus the window '35 may be mounted in the frame 34 between

thelateral strips

36 and 31, and the flap 4'eimay be brought into overlapping relation with the upper edge of. the Window 35 and frame 34 whereby the connection members 3-8 and 39 may be fastened to secure the flap in position for sealing the entrance-,torthe frame 34 and retaining the window 35 in place.

It is to be understood however that the window 35 may be of various types, sizes and shapes and may be formed of two separate panes 42 (Fig. 8) with a frame '43 having a vertical centrally located strip 44 between the panes 42, with entrances being provided at the outer sides of the frame with flaps 5'! covering the entrances in a manner similar to the flap in Fig. 7. Also, it may be desired to have the window 35 shaped to desired size and permanently secured to the hood ID as shown in Fig. 9, wherein the window 35 is secured directly to the hood by stitching, gluing or the like without the provision of a frame. the disadvantage of being permanently mounted in the hood' and not removable and interchangeable as is the preferred type shown in Fig. 7.

Centrally located near the lower edge of the window 35 is an opening 45 and a pair of downwardly extending convergent straps 46 formed integral with the lower edge of the frame 34 having their ends spaced below the opening 45 in a manner such as to provide a passageway into the opening. Oneof the straps 46 is provided near the end thereof with a male clip portion 41 of a snap fastener adapted to be connected with a female portion 48' carried'by the other strap46. Other means however. may be utilized to connect the ends of the straps 46 in overlapping relation.

The adjacent edges of the frontal portions 28' and 29 of the hood mimmediately below the straps 46 and opening 45' areleft free and are not stitched together as is the remaining portions of the edges as indicated by seam 49. The free edges are adapted to' overlap and are connected by a snap fastener arrangement shown to best advantage in Figs. 6 and 8. Located near the free edge of frontal portion 29 is a male clip portion 56 of the snap fastener which is adapted to be connected with afemale portion 5! carried by the adjacent free edge of frontal portion 28. Minute details of the snap fastener are' not deemed necessary in this specification since many suitable types of snap fasteners are available which are adaptable to this invention. Therefore it is believed advisable only 'torelate briefly that as shown in Fig. 6' the female portion 5| of the fastener has an internal flange member 52 adapted to secure the edge of the frontal portion 28 between the main'member 5! and said fiangemember 52 with .a piece of fabric. material or the like 53 secured to the portion 28 for reinforcement purposes. The male portion 50 is secured in position on the edge of'frontal'portion 29 by means of a washer-likemember 54 and an internal flange portion 55 between which the portion 29 and its corresponding reinforcement 56 are secured. This type of fastening means may be used for securing thefiaps 40 and 44 and connecting the strap members 46.

A pair of spaced openings are provided at each side of the hood lenear the forward edges of the rear. panel 30 through which the headband i 3 of the respirator H may extend 'as shown in Fig. 1, this. being done to provide means for externally adjusting the headband? on the wearers head .after the hood has been secured to the respirator as well as to eliminate excess 7 looseness in the fit of the hood [0 around the wearers head.

In positioning the; hood onarespirator, the

front portion of the hood is'locate'd over the front However, the latter type of window has,

respirator with the connecting member between the cartridge supporting member and face piece I2 being positioned in the opening below the window 35, and the straps 46 extending below the face piece 12 and into the space between the lower contour edge of the member l5 and the front of the depending tubular exhalation Valve carrying member 16. With the hood in this position the straps 46 can be drawn together and the snap fastener closed to seal the opening 45 so that the hood cannot become displaced.

Also drawing together the straps 46 will cause the front of the window to bend and assume a cup-like convex shape, covering the face of the wearer. The opening formed at the upper end of seam 49 between the free ends of

frontal portions

28 and 29 of the hood I!) is provided so that the depending tubular exhalation valve carrying member is may be permitted to project outwardly below the straps 46, with the free ends carrying snap fastener portions 5|] and 5| being adapted to be drawn into lapping relation below the member IS so that the fastener parts and 5| may be closed to seal the hood beneath the member Hi.

When it is desired to substitute one hood for another or to change a hood from one respirator to another respirator the straps 46 and

snap fastener parts

50 and 5! are disconnected and the straps 46 drawn away from one another to open the passageway into the, opening 45, and the hood may then be pulled upwardly to disconnect it from the respirator. When a window 35 has become scratched. pitted or otherwise defective it can be easily withdrawn from the frame 34 after opening the flap 4!], and a replacement window easily inserted in its place.

Thus from the foregoing description it can be understood that a hood of this'type can be very economically made and efficient in its use and can also be readily attached, removed and replaced. It is quite apparent that when the hood is applied to a respirator in a manner as hereinbefore described no harmful material can gain access to the head of the wearer. By virtue of the elastic band 24 the hood can be adapted to fit various sizes and shapes of heads thereby eliminating the necessity of providing a number of hoods of different sizes. The snap fastener arrangements act efficiently in conjunction with their cooperative parts to maintain the hood in fixed relation to the respirator and to retain the window or eye band securely in place. The entire device is extremely light in weight, neat in appearance and comfortable in use and when not in use may be folded so as to occupy a minimum of space.

However it is to be understood that several changes or modifications may be made and that although the construction of the respirator is herein described as having a face piece l2 provided with forwardly projection inhalation means and depending exhalation means, the hood may be used with several'diiferent types of respirators. It is also to be understood that although the description hereinbefore refers to a head band attached to the sides of the respirator face piece and extending around the head of the wearer, the head band may be of any of the known used commercial types connected by suitable means to secure the respirator to the wearers head. The snap fasten-er arrangements shown are merely illustrative of one convenient means of securing the straps 46,'free edges of

frontal portions

28 and 29, and flap 40,'but it is to be understood that other suitable mechanical means may be employed. I

Also, although the description of the hood refers mainly to the parts thereof as being connected together by stitching it is to be understood that other means may be employed forv thispurpose such as by the use of adhesives.

It will be apparent that any changes and modifications may be made in the details of construction and arrangement of parts shown and described without departing from the spirit of the invention as expressed in the accompanying claims. Therefore, it is to be understood that all matter set forth or shown in the accompanying drawings is to be interpreted as illustrative and not in a limiting sense.

Having described my invention, Iclaim:

l. A protective covering for the head comprising a hood having a cap portion with a forwardly projecting visor, a drape portion secured to and depending from the cap portion and peripheral edge of the visor, and a window located in the front of said drape portion comprising a bezel fixedly secured in said drape portion beneath said visor, said peripheral edge embodying a channeled portion for receiving the adjacent edge of a transparent member and having a portion of its peripheral margin open for the insertion of said transparent member, and a flap member adapted to seal the marginal opening in the bezel.

2. A protective covering for the head comprising a hood having a cap portion with a forwardly projecting visor, an elastic band member provided in the cap portion to adjust the cap portion to the head of the wearer, a drape portion secured to and depending from the cap portion and peripheral edge of the visor, and a window located in the front of said drape portion comprising a bezel fixedly secured in said drape portion beneath said visor, said bezel embodying a channeled portion for receiving the edge of a transparent member and having its upper peripheral margin open for the insertion of, said transparent member, and a flap member secured to the forward edge of said visor and having means for connection with the upper marginal portion of the, bezel to seal the opening in said marginal portion of the bezel.

3. A protective covering for the head comprising a hood having a cap portion adapted to be supported on the head of the wearer, a visor portion secured to the front of said cap portion and having stiffening means associated therewith, an elastic band member provided'in the cap portion to adjust the cap portion to the head of the wearer, a drape portion secured to and depending from the cap portion and edge of the visor, and a window located in the front of said drape portion comprising a bezel fixedly secured in said drape portion beneath said visor, said bezel having a portion of its peripheral margin open for the insertion of a transparent member, and a flap member carried by the drape portion for connection with the marginal portion of the bezel to seal the marginal opening in the bezel.

4. A head protecting hood comprising a cap portion having a visor, a drape portion attached to and depending from the lower edges of said cap portion and Visor, a window located in the front of said drape portion beneath the visor, and means for attachment of the hood to a respirator consisting of an opening formed in the drape portion through which portionsof the respirator iriaytprojech theropening'i-having convergent strap.

members formed on theropposed sidesrthereof', the=:strap members being adapted to: be drawn into lapping relation adjacent theprojecting portion's' ofv the respirator to secure: the hood to. the respirator.

5. A head. protecting hood for use with respiraitors. comprising a cap portion'adapted to be supportedxupon thehead of the wearer; a visor portion formed integral with said cap portion and having stiffening means'associated' therewith, a drapezportion'idepending from said cap andxvisor portions and having a window: located in the front;thereof,.and meansfor attachment of the hood, to arespirator consisting: of an opening formed in the 'drape portion through which portions of: the respirator may project, the opening having'convergent strap members formed on the opposedzsides. thereof, the'strap members being adaptedto be drawn into lapping. relation adjacentthe projecting portion of the respirator to secure the hoodto the respirator;

6;:Aihead protecting hoodforuse with respirators comprising a cap portion adapted to be supportedzuponithehead' of the wearer, a visor portion formed'integral'with' said. cap portion and h'aVingIstiITeningJmeanswassociated therewith, an elasticiband memberprovided in the cap portion to adjust. thecap portion to the head of the wearer, a drape portion depending from said cap and visor portions and having a ..windo.W located in. the frontlthereof', and means forattachment ofv the hood to a'respirator consisting of an opening formed in the drape portion through which portions of the respirator may project, the openinghaving convergent strap members formed on the opposed sides thereof, the strap membersb'eing adapted toib'e drawn into lapping relation adjacent the projecting portions of the respirator to secure thehood 'to .the respirator.

7. A protecting hood adapted to cover the head of awearer and having an opening formed in the front'thereof; a'bezel bordering the opening and having a marginalflportion thereof open for insertion. of a transparentimember', a flap member: adapted" to cover the .open portion of said bezel,-..a-1 second: opening beneath the first opening for. reception of aportion. of a respiratory device to which the hood is to be attached, and straps formed on the opposed sides. of said second'opening forattachment of the hood to said device.

8. In a combined hood and; respirator, a face pieceadaptedito fit'snugly 'over the face ofthe wearer and'carrying spaced inhalationandexhalation means, and a.v cap member adjustably supported upon the headof the wearer and having 'avisor and a drape'member, the drape member covering entirelythe head'ofthe wearer and having a. windowlocated in the front thereof beneath said visor; an opening being-provided in the" front of the drape member beneath said window for projection of said exhalation and inhalation'means, the opening having convergent strap members formedonthe opposed sides thereof and adapted to be drawn togetherbetween the exhalation and inhalation means to secure the hood to the-respirator.

. 9; Ina combined 'hood' and respirator, the combination of 'aface piece adapted to fit snugly over'the nose and mouth of 'the wearer, inhalation means located on the front of the face piece,

exhalation means located on theface piece in the lower regions thereof, a cap member-adapted to be supported uponthe head of'the wearer and having: a 1.forwardly projecting" visor,- an elastic;

band member provided inithe cap memberato ad? just the hood'rto the head of thewearer," adrape:-

portion depending from' sa-id capz-and'visor over the entireuheadz: of the; wearer and covering: a major portion: of the respirator and having. means for securing. the drape: portion beneath the-arms of the wearer, a removable window lo-- cated-in the'front of the drape portion beneath said'visor, and meanszifor-vattaching the.hoodto. the respirator comprising; anopening: formed in: the drape portion beneath thewindow through which the said inhalation and exhalation means may project, the opening having; convergent strap members formed on the-opposed sides there of, the'strapmembers beingadapted to be drawn into'lapping relation'betwe'en the exhalation and inhalation means to secure the hood. to the respirator.

10. A combined. head protecting hood and respirator'comprisingacap portion, a drape por--- tion depending from said cap portion, a window opening; located in the front of saiddrape por. tion beneath the cap portion; a window insaid opening, a respirator opening formed in the drape portion beneath the window opening and through'which aportion-of a respirator may extend, said portion of thev drape. having,- the respirator opening therein having. strap. members formed adjacent the lowersidesot said opening, said. strap members being adapted to be secured in overlapping. relation with each other;beneath the portion ofv the respirator which extends through the respirator opening to secure: the hood to.. said. respirator.

11. A. head protecting; hood for use wvith respirators-comprising a cap portion adapted to be supported'upon the. head of the wearer, a drape portion. depending fromsaid cap portion and having a window opening located in-the frontthereof, a windowof transparent-flexible sheet material in said Window opening, and means for attachment ofthehood to a respirator consisting of a: second opening formed in the drape portion beneath the window opening and through which aportion of the respirator may, project; said second'opening having: strap members-formed adjacent the lowerside edges thereof, said strap membersbeing adapted to be-secured in overlapping; relation beneath the projecting portion of the respirator when assembled therewith to secure-thehood to therrespira-tor and :being adapted to cause the flexible window to cup outwardly-for clearance with the face of the wearer.

12.: In acombi-nedhood and-respirator, a face piece adapted to fit snugly over the face ofthe wearer and carrying spaced inhalation and exhalation means, and: ai cap member adj usta-bly supported upon lthe-headrof thewearer and -having a drape member" extending downwardly thereof, the drapemembercovering entirely the headof the wearer: and havinga windowopen-v ing'therein, a window in -said'window opening, and a secondopeningr in said draper member beneath said-windowopening-for projection of said exhalation and inhalation means: there through, said' second opening having-convergent strap members formed on the opposed lower sides lyoverthe nose and :mouth of the wearer, inhalathereof and adapted to be drawn and secured tion means located on the front of the face piece, exhalation means located on the face piece in the lower regions thereof, a cap member adapted to be supported upon the head of the wearer, adjustable means in the cap member to adjust the hood to the head of the wearer, a drape portion depending from said cap over the entire head of the wearer and covering a major portion of the shoulders and having means extending beneath the arms of the wearer to secure the drape'portion to the shoulders, a window opening in the drape portion, a removable window located in the window opening, and means for attaching the hood to the respirator comprising a second opening beneath the window 1 opening and through which the said inhalation and exhalation means may project, said second opening having convergent strap members formed on the opposed lower sides thereof and being adapted to be drawn and secured together 3 between the exhalation and inhalation means to secure the hood to the respirator.

14. A protecting hood adapted to cover the entire head of the wearer and having an opening formed in the front thereof, a channelled portion bordering the opening and having a portion thereof open for the insertion of a transparent member, means adapted to cover the 10 open portion of said channelled portion to removably secure the transparent member therein, and a second opening beneath the first opening for the reception of a respiratory device to which the hood may be attached, and convergent straps formed on the opposed sides of said second opening for attachment of the hood to said device.

GEORGE H. SCHAU'WEKER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,095,089 Dinn Apr. 28, 1914 1,331,701 Fendelman Feb. 24, 1920 1,583,017 Sherman May 4, 1926 1,590,668 Bello June 29, 1926 2,105,028 Dickhofi Jan. 11, 1938 2,269,461 Lehmberg Jan. 13, 1942 2,435,167 Stetson Jan. 27, 1948 FOREIGN PATENTS Number Country Date 510,491 Great Britain Aug. 2, 1939