US2414405A - Mask - Google Patents

Description

MASK

Jan. 14, 1947..

Filed Dec. 15, 1944v Patented Jan. 14, 1947 MASK Howard R. Bierman and George E. Beckwith, United States Navy Application December 15, 1944, Serial No.,568,372

Y (o1. 12s-141) (Granted under the act of March 3, 1883, as

` 4 Claims.

This invention relates to a mask or breathing apparatus of the type which includes a face piece that covers the face of the wearer and more particularly to means for retaining the mask in protective position over the face. A

A further object of this invention is to provide a gas mask retaining means which is easily operable for quick manipulation in placing the mask in operative position as well as for quicklr removing it from operative position.

'A still further object of this invention is to provide a retaining means for gas mask that may be used independently of a helmet and irrespective of the presence or absence of a helmet, or may be used in conjunction with a helmet, and in either case have the same facility for quick emplacement or displacement of the mask.

A still further object of this invention 'u to provide an easily removable and replaceable mask particularly intended as an oxygen mask, but equally serviceable as a gas mask for protection against poison gases, which retaining means is adapted to hold the mask securely in place at all times.

Still another object of this invention is to provide a mask retaining means, particularly intended for an oxygen mask of the type which includes a microphone.

Still another object of this invention is to pro vide a gas or oxygen mask of the type which in cludes a microphone and wherein the air or oxygen tube enters from the side so as to be disposed over the wearers shoulder rather than depend from the bottom, as customary, thus making this improved mask particularly useful for aviators by keeping the tube in a position where it will not be an interference.

With the foregoing and other objects in view, the invention consists in the construction, combination and arrangement of parts hereinafter set forth, claimed and illustrated in the drawing in which:

Fig, l is a perspective view of the mask retaining means in operative position, showing the right three-quarter prole of the wearer.

Fig. 2 is a perspective view showing the left three-quarter profile of the wearer,

Fig. 3 is a detailed enlarged view showing the mask gripping details.

Fig. 4 is a perspective view of the quick disconnect clamp in partially open condition, and

Fig. 5 is an enlarged fragmentary detail view of the clamp in closed position.

There is shown at ill a gas or oxygen mask of the type having a microphone well I I for supamended April 30, 1928; 370 0. G. 757)' porting a microphone, not shown, therewithin. Extending from one side of the mask II] is an air or oxygen tube I2 having its entry port I3 substantially above the microphone well and hence considerably above the lips of the wearer I4. Secured about the microphone well is a wire ring I5 provided with four ears I6 and |1 and having its ends I8 secured by a wire clip 20. This wire ring I5 is sufficiently resilient that it will clamp tightly about the well I I.

Secured to the helmet 2| as by means of snap fasteners 22 are four straps 23, each including an adjusting buckle 24, a hooked eye member 25 at the end thereof having a turned-back hook end 23. The hook ends 26 of the two straps 23 on the left side'of the helmet 2| are intended to cooperate with the ring ears I6, the hook ends 23 of theother pair of strap members 23 on the right side of the wearer I4 are intended to cooperate with the turned-back ends 21 of a clip bar 28. This clip bar 28 forms part of a quick disconnecting mechanism 30, shown in Fig. 4, wherein a clip handle 3| is pivoted at 32 to a clip anchor 33 and the clip handle 3| `beyond Athe pivot points at 32 ends in hooks 34 adapted to secure about clip bar 28, as shown in Fig.. 4. The clip anchor 33 extends between the ears I1, that portion of the wire ring I5 between ears I1 being crimped as at 35 as shown.

As thus described, the quick detaching mechanism 3D is intended for use by a right-handed individual so as to be easily accessible to his right hand, but if a left-handed individual is to wear it, it is only necessary to rotate the ring degrees about the microphone well II, including a similar rotation of the straps 23, or alternatively, the straps 23 may be left in position and the eye hooks 25 appropriately disconnected and reconnected. The helmet 2| may be omitted by merely lengthening straps 23 to extend and join behind the head.

In operation, the mask III is secured in position by snap fastening the straps 23 to the helmet 2|, as at 22, before the helmet is placed on the head. Then the clip handle 3| is passed under the clip bar 28 and rotated 180 degrees, securing the hooks 34 about the clip bar 28 and holding the mask in operative position, it being noted that the ends of the clip anchor 33 are turned back a bit to provide seats 36 in which clip bar 28 rests, as shown in Fig. 1. The use of goggles 31 is not interfered with by the presence of the mask I0 or mask securing straps 23. If the wearer wishes to remove the mask III quickly, he has but to lift the clip handle 3| from the position shown ber and arrangement of the parts may be made by those skilled in the art without departing from the nature of this invention within the scope of what is hereinafter claimed.

The invention herein described .and claimed may be manufactured and used by or for the Government of the United States of America for governmental purposes Withoutthepayment of any royalties thereon or therefor.

What is claimed is:

1. A device for retaining a mask of themicro-v phone well type on the face, said-mask havinglan oxygen tube port above the well level, comprising a ring resiliently secured on-the mask microphone well,:a pluralityy of ears extending from said ring,r

a plurality-of adjustable straps having V'snap fastener means forsecuring to a helmet, an eye hookmounted. on 'the end ofreach of said straps, a pair of'said eyehooksicooperatingLwith Aa pair of said ring ears, and' a quick disconnecting mechanism mounted on the" otherpair of said eye hooksan'dthe vother'pair ofl said ring ears;

2. A deviceA `for quick-detachably retaining a mask 'of :the microphone Well Vtype' on theface, comprisingia ring resiliently secured ony the mask microphone well;v a pluralityfof ears extending fromv said ring-:fa plurality of adjustable straps havinggsnap jfastener' means for securing to a helmet,` an eye hook' mounted on'th'e'endofy each of said straps,fa pair of'fsaid' eyehooksfcooperatingfwith a pair of said ring ears,and a quick disconnecting mechanism mounted on the other pair of .said eye' hooks andthe other paircf said ring.A

earsp;

, 3. l'Ldevicefor, quick-detachably 'retaining a mask of the'microphone well' type on 'the'.v face, comprisinga ring resiliently secured onthe mask microphone well',`a plurality of ears 'extending from said ring, a plurality of head-mounting straps having a hook mounted on the end of each of said straps, a pair of said eye hooks cooperating with a pair of said ring ears, and a quick disconnecting mechanism secured to the other pair of said hooks and the other pair of said 'ring ears, ;said quick` disconnecting mechanism comprising a clipl bar securedV to said pair of hooks, an anchor bar mounted on said pair of ring ears said anchor bar terminating in a pair ofY turned-back ends providing clip bar receiving seats .and a handle clip having a pair of hooked ends and pivoted to the turned-back ends of said anchor bar whereby said clip handle may extend under said clip bar and be pivoted thereabout to place .said clip bar in said anchor bar seats to holdthe mask in position and may be rotated in an opposite' direction vto raise said clip bar out ofV saidanchor bar seats for quick separation.

4. A device for quick-detachably retaining a mask of the microphone well ftype on the face, comprising a ringresiliently secured on the mask microphone well, a plurality of ears extending from` said ring, a plurality of adjustable straps having snap fastener. means for 1 securing to a helmet, an eye hook mounted on the end of each of saidstraps,` a pair of said eye hooks cooperating with a pair of said ring ears, and a quick disconnecting Vmechanism mountedv on the other pair( of said eye hooksand the other pair of said ring ears, said quick disconnecting mechanism com- Y prising a clip bar secured to said pair of eye hooks7 an .anchor bar mounted on saidpair of ring ears, said anchor bar terminating in a pair ofturned-back ends providing clip bar receiving sea-ts and a handle clip having a pair of hooked

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