U.S. patent number 3,658,058 [Application Number 05/025,645] was granted by the patent office on 1972-04-25 for breathing apparatus nose-closing device.
This patent grant is currently assigned to Mine Safety Appliances Company. Invention is credited to John W. Neidhart, Rutherford B. Snyder, Jr..
United States Patent |
3,658,058 |
Neidhart , et al. |
April 25, 1972 |
BREATHING APPARATUS NOSE-CLOSING DEVICE
Abstract
A breathing tube, which is provided at one end with a bite piece
for holding it in the mouth, is snugly surrounded by a supporting
member close to the bite piece. This member extends upwardly and
has nose-engaging means integral with its upper portion for closing
the nostrils.
Inventors: |
Neidhart; John W. (Monroeville,
PA), Snyder, Jr.; Rutherford B. (Bradford Woods, PA) |
Assignee: |
Mine Safety Appliances Company
(N/A)
|
Family
ID: |
21827261 |
Appl.
No.: |
05/025,645 |
Filed: |
April 6, 1970 |
Current U.S.
Class: |
128/201.18 |
Current CPC
Class: |
A62B
9/06 (20130101); A61M 16/0488 (20130101); A61M
16/06 (20130101); A61M 16/0493 (20140204); A61M
2210/0618 (20130101) |
Current International
Class: |
A61M
16/06 (20060101); A61M 16/04 (20060101); A62B
9/00 (20060101); A62B 9/06 (20060101); A62b
007/00 () |
Field of
Search: |
;128/147,140,145,351,145.5 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
|
|
|
|
|
|
|
1,113,065 |
|
Aug 1961 |
|
DT |
|
112,330 |
|
1964 |
|
CS |
|
Primary Examiner: Gaudet; Richard A.
Assistant Examiner: Dunne; G. F.
Claims
We claim:
1. The combination of a breathing tube provided at one end with a
bite piece for holding that end in the mouth, a supporting member
having a lower ring portion snugly surrounding the tube close to
said bite piece and a post portion extending upwardly therefrom,
and nose-engaging means integral with the upper post portion of
said member and supported thereby, the supporting member and
nose-engaging means being a single element of resilient rubber-like
material, and said nose-engaging means being a recessed clip
positioned to receive and straddle the end of the nose and pinch
the nostrils shut.
Description
With some types of breathing apparatus it is necessary or desirable
to breath only through the mouth. Since this is difficult to do if
the nose is open, it is customary to provide a nose clip or clamp
which fits over the nose and pinches it to close the nostrils. Such
a clip is generally connected to the breathing tube or some other
nearby part of the breathing apparatus by means of a cord or
lanyard. A separate nose clip, such as just mentioned, may become
disconnected from the rest of the apparatus and misplaced or lost,
while at best it is a separate piece that must be handled.
It is among the objects of this invention to provide a nose clip or
the like which is mounted on the breathing tube and permanently
attached to it .
The invention is illustrated in the accompanying drawings, in
which
FIG. 1 is a side view of a nose clamp supported by a breathing
tube;
FIG. 2 is a front view thereof;
FIG. 3 is a plan view;
FIG. 4 is a front view of a modification;
FIG. 5 is a vertical section taken on the line V--V of FIG. 4;
FIG. 6 is a rear view of another embodiment; and
FIG. 7 is a vertical section taken on the line VII--VII of FIG.
6.
Referring to FIGS. 1, 2 and 3 of the drawings, a supporting member
has a more or less upright post portion 1, the lower end of which
terminates in a ring portion 2 that extends forward and rearwardly
from the post portion. The ring portion preferably is oval or
elliptical to fit snugly around a breathing tube 3 of the same
shape. This tube may be a flexible hose or it may be a rigid tube
such as shown in Yant U.S. Pat. No. 2,626,678. Preferably, the post
and ring are molded from rubber or a rubber-like material so that
although the supporting member is essentially stiff, it will have
some resiliency, and so that the ring will tightly grip the tube to
hold the supporting member in place.
The end of the tube projecting from the rear end of the passage
through the ring portion of the supporting member is surrounded by
a flange 4 that is inserted in the mouth between the teeth and
lips. The flange is provided with rearwardly projecting lugs 5 that
serve as bite pieces that are gripped between the teeth in order to
hold the tube in place.
Integral with the upper portion of the post and supported by it is
a clip positioned to straddle the end of the nose. The clip is
formed from two laterally spaced and rearwardly extending pads 7
spaced close enough together so that when the clip is forced
rearwardly over the nose it will pinch the nose and thereby close
the nostrils. Since the nose clip is supported from the breathing
tube, as long as the tube is held in the mouth the clip will remain
in place over the end of the nose. The clip cannot become lost, and
whenever the tube is placed in the mouth the clip is positioned in
front of the nose ready for application to it.
In the modification shown in FIGS. 4 and 5 the supporting member,
instead of being a post and ring as in FIG. 1, is a cup 9 that is
formed to fit the face around the mouth. This cup is provided
centrally with a passage 10 through it for snugly receiving a
breathing tube (not shown) provided with a bite piece to be held in
the mouth, the same as in FIG. 1. Integral with the upper part of
the cup is a bifurcated socket that receives the end of the nose.
The sides 11 of the socket are close enough together to pinch the
nose closed. The top 12 of the cup forms the bottom of the socket
and engages the upper lip directly beneath the nose.
In the further embodiment of this invention shown in FIGS. 6 and 7,
the supporting member again is a cup 14 that will fit around the
mouth. It also is provided with a central passage 15 for receiving
a breathing tube. The cup has an upper extension 16 that covers the
end of the nose. Inside the lower part of this extension there are
a pair of laterally spaced plugs 17 in a position to block or
occlude the nostrils. This device therefore does not pinch the nose
to close it, but still prevents air from entering the nose.
* * * * *