US1221246A - Respirator. - Google Patents

Description

C. TRAVERS.

RESPIRATOR.

APPLICATION FILED IuILY I6. I9I4.

LQQLM@ Patented Apr. 3, 1917.

` ized charcoal and the like.

RESPIRATOR.

Speccaton of Letters Patent.

Patented am. s, mit.

Application iled July 16, 1914. Serial No. 851,333.

To all whom t may concern.' l

.Be it known that I, CARL TRAVERS, manager, a resident of Frankenholz, near MittelbeXbach, Palatinate, German Empire,lhave invented certain new and useful Improvements in Respirators, of whichthe following is a specification.

This invention relates to respirators and pertains particularly to respirators of novel construction which effectively prevent dust, smoke, disagreeable odors and injurious gases from passing into the lungs. In addition to this main object care has been taken to make the novel respirator compendious and of little weight and of such a shape as to allow of carrying it easily and securely during use. Another obj ect of my' invention is to produce a respirator which is adapted for theapeutic purposes and' for use rby physicians, sick room and hospital attendants. y

I-Ieretofore respirators have` been constructed in which the air to be purified was passed through a filtering medium such as cotton, spongy and fibrous material, pulver- Sometimes the air was conducted through a number of nets, arranged at a certain distance from each other or superposed partitions -were employed with moist fabric so arranged as to form a long passage through which the air passed in a Zig-zag line for retaining the dust.

rIhe described devices suffer from various defects. A filtering medium prevents easy breathing and a long passage is undesirable for obvious reasons.

'lhe present invention has for its special purpose to overcome the described defects. This has been primarily attained by using walls or partitions within the respirator having rough and moist surfaces provided with a plurality of fine openings so arranged that the partitions are but a small distance from each other. The openings are staggered so that the air, when passing through the respirator, must impinge upon the rough and moist surfaces of the partitions located opposite the said openings. The free passages formed between the partitions are very short whereby any undue resistance is avoided. For ordinary purposes water may be used for wetting the rough surfaces of the inner mechanism because dust and the like adheres and sticks to the moist surfaces. However if the respirator is to be worn in places where injurious or poisonous gases arise, such as for instance vammonia vapors or acid fumes, then suitable liquids are used for wetting the inner rough surfaces according to requirement. The inrushing air passing through a plurality of openings is divided into a plurality of line streams which facilitate its purification before being inhaled.

lThis receptacle is purposed to be put on the upper lip and worn there when the respirator is in use. rIhe bottom o of the receptacle is hinged as shown at c to permit of opening lthe device and a snap lock Z at the opposite side secures the bottom to the respirator.

According to the present invention the receptacle houses a plurality of partitions e which are connected to each other. To render the surfaces of these partitions adapted to be wetted or soaked they are covered with textile fabric f or other absorbing material. Fine openings el, f1 are provided within the partitions which openings are staggered. rIhe distance between the partitions is very small, as may be seen from Figs. 1 and 4.

Practice has proven that the inrushing air, ywhile passing through the apparatus, is perfectly purified and excellent for breathing. As shown in Figs. 1 and 4L the air passages g, formed between the partitions are rather small therefore the purification of the air is less effected while passing along these passages' than by the quick and easy flow of the air through the openings el, f1.

The top wall a1 of the receptacle ct is provided with small tubings a2 each intended to be connected with a short tube 71, of rubber or any other suitable material. At the end of each tube a small oval end piece 72,1 is formed for the nostrils. These end pieces may be provided near their ends each with a circular groove h2, into which a woolen y hollow cylindrical'neck b1, closed by a cylin- Y air entering the inner space of the receptacle drical filter sack i composed of fabric or thev like. A ribbon or band is employed for fixing the apparatus in position for use and this band is attached to the receptacle by suitable means such as projections or press buttons, preferably on the side next the face of the wearer.

' When the device is to be. used the frame e covered as shown, is dipped in water or other suitable liquidY which is absorbed by the covering f. The frame is then placed in position within the receptacle a by opening the base Z and then the snap lock d is closed. rlhe apparatus is now xed tothe head of the wearer with the nipples 71,1 placed into the nostrils. The coarse particles contained in the air areV held back by the filter z' through which the air must flow first. The

` a; is divided into a plurality of fine streams passing the openings f1 and e1 and then impinging upon the opposite wall of the cover f is purified. The puried air passes then -through the nipples h1 and is inhaled.

It may be observed that the frame must inserted air tight into the walls of the receptacle to prevent the air from passing directly to the nipples h1.

The exhaled air passes from the lungs out over the same course of the apparatus. No special Vpassages and non-return valves or other means are required as is necessary in other known apparatus serving the same purpose.

By virtue of the present construction of they respirator the path for the air to be purified has become very short, which'preserntsV aY great advantage, namely to easily breathe-out the air over the same pathV over whichit is drawn in. In order to facilitate the discharge 'of the vitiated air from the nostrils into the apparatus there are provided deflecting members such as blades as causing the discharging air to flow laterally toward and into the holes f1 and e1.

Y There are, as 'it may be easily understood, a great number of constructions and modifications of the apparatus'suitable for carrying the hereinbefore described method into effect: for instance, the base may be provided with side walls, thus forming a separate casing, and put over the casing a; in this case the holders may be fastened to the said side walls. There may be used two or even Ymore receptacles instead of only one.Y Various covering materials may be '6 used for instance wool, annel, cellulose, po-

rous materialas natural or articial sponge Ainrushing and exhaled air comprising a receptacle, a plurality of parallel partitions tight within the receptacle in close proximity to each other and provided with rough, moist surfaces and a plurality of staggered openings, a fabric filter at vthe bottom of the receptacle, and nostril nipples arranged at the top of the same.

2. A respirator with short path for the inrushing and exhaled air comprising a receptacle, a plurality of parallel partitions tight within the receptacle in close' proximity to each other and provided with fabric covered rough, moist surfaces and a plurality of staggered openings, a neck at the bottom of the receptacle, a fabric filter on the said neck, and movable nostril pieces at the top of the receptacle.

3. A respirator with one short path for both the inrushing and exhaled air compris- Ving a receptacle, a plurality of parallel partitions tight within the receptacle in close proximity to each other and provided with rough, moist surfaces and a plurality of staggered openings, a fabric filter at the bottom of the receptacle, and nostril nipples arranged at the top of the same.

4. A respirator with one short path for both the inrushing and exhaled air comprising a receptacle, a plurality of parallel partitions tight within the receptacle in close proximity to each other and provided with fabric covered, rough, moist surfaces and a plurality of staggered openings, a neck at the bottom of the receptacle, a fabric filter on the said neck, and movable nostril nipples arranged at the top of the receptacle.

5. A respirator with short path for the inrushing and exhaled air comprising a receptacle curved to fit the upper lip of the user, a hinged bottom portion on the rcceptacle, an air inlet thereon, a removable frame tight within the receptacle and composed of a plurality of partitions in close proximity to each other and provided with rough, moist surfaces and a plurality of small staggered openings thus forcing the inrushing air to impinge upon the moist surfaces of the frame, and two nostril nipples with iexible connections at the top of the receptacle-for inhaling the purified and exhaling the vitiated air.

6. A respirator with one short path for both the inrushing and exhaled air comprising a curved receptacle, a removable frame tight therein, composed of a plurality of parallel partitions in close proximity to each In Witness whereof I have hereunto Set other and provided with rough, moist surmy hzmd 1n the presence of tWo Witnesses.

feces and a plurality of staggered openings,

an air inlet at the bottom of the receptacle, CARL TRAVERS two nostril pieces at its top, and air delect- Witnesses:

ing 'plates Within, below the said pieces, for FRITZ BERG,

cleecting the vitiated air. H. MERLE COCHRAN.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, 1D. C.

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