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Патент USA US2408167

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Sept. 24, 1946.
Filed May 19, 1944
6% M
_ Patented Sept. 24, 1946 ‘
~ . Eugene ‘livliawkins, Compton, Calif."
‘ ‘I Application
119, 1944, Serial No; 536,273
4 Claims. I (01. 11281-145),
This invention relates to protective devices and
more especially toa ‘respiratory mask article,
adapted for use when bathing, also’as a life- .
saving article.
An object of the invention is to provide a simple, ,
The other end of tube I3 is suitably connected
to, a neck portion M on the upper side of a valve
housing IS. The housing [5 is a hollow. box of
‘suitable material, and has a bottom member l6
provided’ witha central ‘aperture ll.’ A plurality
of channels2'i extend from the inside of the
housing l5‘ to the aperture H. A buoyant valve
Another object is to ‘provide a novel or respira
member I9 is provided and positioned within
torymask and protective device adapted for use
structure l5 and preferably comprises a ball of
in the .water when ‘bathing.
' ‘
10 cork or other equivalent, material which will
Another object is to provide an .emergency life
?oat on water. A light spring 20 issecured be
saving article for ‘use on water.
tween a bar 2| suitably secured within neck?l?
Still other objects of my invention include pro
and the ?oat member I9 in such manner as to
viding such means that are positive in opera
the float, member l9 away fromv the inlet
' tion, convenient in use, economical of manufac 15
tothe tube l3; when there is not enough water in
practical, and inexpensive article ofthe char
acter described.
- >
ture, relatively simple, and of general/superiority
the housing £5 to buoyantly move the valve [9
to a tube-closing position.
The invention also comprisesrnovel details of
It will be noted that (the channels 21 provide
construction and novel combinations, and are
rangements of parts, which will more fully ap 20 projections 28 which support the valve l9 when
the housing I5 is free of water. When the valve
pear in the course of the. following description.
resting on the projections 28, air is permitted
However, the drawing merely shows and the fol
to move in and out of the housing I5, past the
lowing description merely describes one embodi
valve l9, through the channels 21.
ment of the present invention, which is given by
The operation of the invention should be ap»
way of illustration or exampleronly.
25 parent from the foregoing description. The mask
In the drawing, like reference characters des
may be applied to the face as shown in Fig. 1 for
ignate similar parts in the several views.
protection when a person is in a body of water.
Fig. 1 is an elevation view of an embodiment of
' If the person’s head is at or above the surface
my invention.
Fig. 2 is an enlarged view in section showing 30 of the Water, the housing I5 is thereby above
the level of the water, due to the length of the
the valve structure also shown in Fig. 1.
tube l3. In this position, the person may breathe
Fig. 3’ is a fragmentary view showing a mod
_ freely, since air passes in and out of the housing
i?ed form of valve actuating member.
I 5, past the valve l9, through the channels 21.
Referring more particularly to the drawing, I
course, there is a direct connection therefrom
show a respiratory mask varticle comprising a 35 Of
the tube l3 to the inside of the mask 5.
mask element 5 preferably, but not necessarily,
If the person goes under water sufficiently for
formed, of a transparent, plastic material, sub
the housing l5 to be submerged, the buoyancy of
stantially semicircular in con?guration, and hav
the valve I9 causes it to close the tube l3 as sug
ing upper and lower curved edge portions 6 and
gested by the broken lines in Fig. 2. With the
1, and a pair of side edge portions 8, which edge 40 tube I3 closed to the ingress of water, the person
portions may be provided with a resilient, water
may breathe the air in the mask 5 and in the
sealing edge strip 9, whereby the mask may be
tube l3. The period of being submerged is rela
?tted across and around the face, head and chin,
tively ‘short, and when the person again returns
and along the sides of the 'face or head of the
to the surface, the housing I5 is raised above the
user, to provide a water tight mask for a person. 45 surface, thus permitting the water in the hous
A pair of resilient or adjustable bands 10 may be
ing l5 to drain out and permit the escape of foul
provided, and secured, as by fasteners II, to the
mask and being adapted to extend around the
air and the ingress of fresh air. '
In Fig. 3 I show a modi?ed form of valve
back‘of the head and neck of the user, as should
which comprises a buoyant, semi-spherical valve
be clear. A spacing member I 8 connects and 50 member 22 pivoted at 23 adjacent the end of
holds apart the upper and lower bands Iii. ' Mask
tube I3, and the operation of this modification
5 extends outwardly from the face as shown, form
will be substantially similar to that of valve mem
ing a respiration chamber I 2 to which is con
ber l9, such that water tending to enter tube l3’
nected tube l3 having a tubular passage in com-1
munication with chamber l2 at one end.
will raise ?oat member 22 and cause it to close
against the end of tube I 3.‘ Raising the valve
member 22. from the surface of the water permits
it to open, for the ingress of fresh air.
While I have illustrated and described what
I now regard as the preferred embodiment of my
invention, the construction is, of course, subject
to modi?cations without departing from the spirit
a spring normally to hold said valve against said
lugs and free of the aperture, said valve being
operable against the tension of said spring by
buoyancy to engage the seat in the end of said
tube, and said spring unseating said valve when
uninfluenced by water and holding said valve
open during inspiration of the wearer.
‘3. In a device of the ‘character referred to, the
wish to restrict myself to the particular form of
combination of: a shield having means for secur
construction illustrated and described, but desire
ing same to the face and forming an air chamber,
to avail myself of all modi?cations that may fall 10. a ‘tube connected to the upper part of said shield
within the scope of the appended claims.
and having a downwardly directed portion pro
Having thus described my invention, what I
vided with threads, the end of said tube forming
claim and desire to secure by Letters Patent is:
‘a seatha valve chamber threadedly connected with
1. In a respiratory mask article, a shield adapt
said tube portion and having a removable bot
and scope of my invention. I, therefore, do not
ed to be secured on the face, a tube leading up 15 ' tom, said bottom having a central aperture and
wardly from the shield having a transverse bar h lugs extending radially from the face thereof, a
near the end thereof, and a check valve struc
ture for respiration secured at the end of said
tube, a buoyant valve in said body adapted to
buoyant" valve member in said chamber, and a
yielding means to hold said member against said
lugs and free of the aperture in the bottom of
close the tube against the ingress of water when 20 said chamber, said valve being operable against
the structure is submerged, and spring means se
said yielding means by its buoyancy to seal the
cured to said bar and tending to move the valve
passage in said tube against the ?ow of water,
away from its tube closing position when the
and said yielding means maintaining the valve
structure is freed of water, the spring means be
member open during inspiration of the wearer.
ing of such lightness that water in the structure 25
4. In a device of the character referred to, the
fbuoyantlycloses the valve against the action of
the spring means, the structure having in the bot
tom thereof an aperture for the movement of air
in and out of the valve, the wall of said aperture
combination of: a shield having means for secur
ing same to the face, a tube connected at one
end to said shield, a valve chamber associated
with the other end of, said tube and having in the
having annularly arranged projections for seating 30 bottom thereof a central-apertura'said aperture
the valve free of the aperture structure around
provided with inwardly directed radial projec
tions, a buoyant valve in and adapted to be guided
the valve.
2. In a device of the character referred to, a
by the walls of said chamber to a seating posi
shield adapted to be secured to the face and form
tion with the end of said tube, and a spring to
ing an air chamber, a tube connected to said
hold said valve against said projections and free
shield and having a downwardly directed end pro
of the aperture in said chamber, said valve being
viding a seat, a valve chamber connected to said
operable against said spring by its buoyancy to
end having a removable bottom, said bottom hav
seal the end of said tube, and said spring main
ing a central aperture and annularly arranged
40 taining the valve open for admission of air.
lugs extending inwardly from the face thereof,
a buoyant valve member within said chamber, and
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