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W
14, 194.
, D. A. SEAVER
2,456,451
INHALER
Filed Eay 31., 1946
2 Sheets—8hee't 1
mmvroza
DONALD/I. 5E4 YER
ATTORNEY
Dec.‘ 14, 1948.
D. A. SEAVER'
2,456,451
manna
Filed May‘ 31 , 1946
2 Sheets-Sheet 2
-
v
Fl
INVENTOR.
DONALD A. SEA YER
| E1 7.
BY
’
'
WW7.
ATTORNEY
7
Patented Dec. V14,, 1948
‘2,456,451
UNITED STATES PATENT
oFFlce , -
2,456,451
INHALER
Donald A. Seaver, West Cheshire, Conn., assignor
» to Scovill Manufacturing Company, Waterbury,
Conn., a corporation of Connecticut
Application May a1, 1946, Serial No. 673,548
6 ‘Claims. ( Cl. 128-200)
1
This application is a continuation in part of my
' copending application, now abandoned, Serial No.
' 577,650, ?led May 13, 1945.
" This invention relates to inhalers and partic
ularly to pocket inhalers of the type in which
there is a medicated ?ller adapted to produce
vapors for treatment of the air passages of the
nose, throat and lungs.
-
Devices of this character are frequently pro
vided with a nozzle designed to be applied
directly to the user's nostril so that air may be
drawn through the container and over‘the ?ller
2
struction in which the inhalator nozzle is movable
within an outer casing so that the aperture of the
‘nozzle may be conveniently applied‘to the nostril
without contact with theexternal casing.
A further object of the invention is to provide
new and improved guiding means for the telescop
ing members of such devices so that alignment of
the parts is at all times insured and jamming or
tilting of the parts during movement is prevented.
10
A still further object of the invention is to pro
vide an inhalator of the type set forth which is
of improved ef?ciency providing for free and un
to carry vapors into the nose and throat. How
encumbered air admitting passages as well as a
ever, such structures have not always been pro
free passage for air over the medicament and
vided with sufficient air passages to permit air to 15 through the nozzle orifice.
be drawn through the device readily and in some
These and other objects and advantages of the
instances the openings through which air passes
present invention will be apparent from the fol
into the device have been so located as to be ob
lowing description thereof in which reference is.
structed or covered by the ?ngers or when held
made to the accompanying drawings. '
to the ‘nostril for use. Moreover, since the me 20
In the drawings:
dicinal material used is necessary volatile, it is
:Fig. 1 is a side elevation partly in section show
important to provide means for adequately seal
ing one embodiment of the invention with the
ing the device when not in use. It is also neces
cap in position;
_ ,
_
sary for such devices to be inexpensive and
Fig. 2 is a horizontal sectional view of the con
simple in construction since they are discarded
struction shown in Fig. 1 taken on the line 2-2
when the filler has become exhausted or has lost
thereof;
.
,
its effectiveness‘
Fig. 3 is 'a side elevation of the construction
In accordance with the present invention, con
shown in Fig. 1 with the cap removed and the
structions which overcome these objections and‘ '
nozzle of the holder projected;
-
limitations of prior inhalers are provided by 30
Fig. 4 shows an exploded view of the several
forming the device of simple elements which are
parts of the inhaler shown in Fig. 1 as they appear
limited in number and inexpensive to produce and
before assembly;
v
assemble. The construction embodies telescoping
Fig. 5 is a view partly in elevation and partly
elements which include an outer casing and a ‘
in section-showing the outer casing‘ of the con
nozzle or nostril engaging member that is nor
mally housed within the casing but is movable to
a projected position when in use. The parts are
also formed to afford ample air passages for ?ow
of air through the device and the construction
1.7 vl struction illustrated in Fig. 1;
Fig. 6 is a side elevation partly in section of an I
alternative embodiment of the present invention;
Fig. 7 is a horizontal sectional view of the con
struction shown in Fig. 6 taken on the line 1-1
further is provided with means whereby both the 40 thereof;
casing and the nozzle may be sealed to prevent
- Fig. 8 is an exploded view of the construction
evaporation or loss in effectiveness of the medica
shown in Fig. 6 with the several parts as they
' ment employed.
appear before assembly;
One of the objects of the present invention is to
.provide a novel type of pocket inhaler which is
simple and economical to manufacture and
assemble and easy and effective to use.
Another object of the invention is to provide
improved ‘sealing means whereby wasteof the
medicinal value of the filler is’ avoided and leak
age of the volatile constitutents to the outside of
the casing when the device is not in use is pre
cluded.
-
Another object of the invention is to provide
an inhaler of improved simple and economic con- .
_
~e
Fig. 9 is a side elevation partly in section of
another alternative form of my device; and
Y
Fig.,l0 is an exploded view of the construction
shown in Fig. 9 with the several parts as they
appear before assembly.
Referring to that form of the invention shown
in Figs. 1 to 5 of the drawings itwill be seen that
the construction embodies an outer generally
cylindrical casing or shell 2, and an inner open
ended ‘medicament holder 4 which is slidably
?tted in the shell 2 and urged outwardly toward
a projected position by a spring 6. The holder is
2,466,451
3
4
designedto receive and retain an absorbent ma
terial which may be saturated with the inhalant
or the material may be in the form of crystals or
of any other preferred type but is not illustrated
in the drawings.
A cap 8 is adapted to be applied to the open
upper end of the casing 2 and engages the upper
nozzle end of the holder 4 to depress the holder
against the action of spring 8 so as to hold it
in a retracted position when the cover is secured
in place. The cap 8 preferably is formed of rel
upper end of the casing to the interior thereof
when the holder is projected to its operative po
atively light, thin and inexpensive material and
comprises a head ill, the side edges of which are
knurled as shown at l2 to provide a convenient
gripping surface. Located within the cap 8 is a
suitable sealing member l4 which may be of
cork, rubber or other conventional sealing
material.
-
The skirt of the cap 8 is provided with threads
15 for engagement with external threads IS on
the upper end of the outer casing 2. The upper,
or cap receiving portion of the casing 2, is of
smaller diameter than the main portion 28, and
a shoulder 22 is formed at the place of union
of the two portions which serves as'an abutment
for the lower edge of the cap to limit its downward
motion on the casing. However, in most instances
it is preferable to permit the sealing member l4
within the cap'to limit movement of the cap to
ward the container since it is then possible to
assure a tight seal of the cap about the upper
open end of the casing.
When the cap 8 is in position on the end of
the casing 2 it not only seals the open end of the
casing and retains the holder in a retracted posi
tion, but also engages the nozzle 24 on the outer
end of the medicament holder 4 and serves to
close and seal the central opening 28 in the nozzle
to provide a separate and effective seal for the
sition as shown in Fig. 3. The vent grooves 34
are thus positioned so that they will not be ob
structed by the ?ngers or nose even ii’ the nozzle
is inserted well ‘into the user's nostril. The
grooves also extend into the outer casing below
the ?ange 28 a distance su?icient to insure free
flow of air into and through the casing to the
opening 36 at the lower end of the holder. From
the opening 36 the air ?ows upward through the
holder 4 to the opening 28 in the nozzle 24. In
this way- large and unobstructed passages are
provided so that the user may draw vapors
through the inhaler without e?’ort.
The walls of the holder 4 below the nozzle 24
are also provided with guide ribs 38 which are
preferably spaced circumferentially so as to be
located between the vent grooves 34. The ribs
38 project outwardly from the holder and extend
longitudinally thereof terminating at their upper
ends in shoulders 48 which are designed to en
gage the inwardly extending fiange 28 on the up
per end of the casing 2 to limit outward move
. ment of the holder under the action of the spring
6.
The side faces of the ribs 38 present smooth
bearing and guiding surfaces engagable with the
internal surface of the casing 2. The ribs thus
provide extended and spaced supports for the
holder which insure smooth straight ‘and recti
linear movement of the holder and prevent tilt
ing or jamming thereof within the outer casing.
The shoulders 48 are located below or spaced
downwardly from the upper ends of the vent
grooves 34. and therefore when the holder is in
its projected position the vent grooves 34 extend
from points above the ?ange 28 to points below
this ?ange and'permit air to flow freely inwardly
past the flange 28 to the space between the casing
nozzle as well as the casing itself.
and the holder and to the opening 36 in the lower
The open upper end of the casing 2 is provided
end of the holder. The air thus entering the
with an inturned mouth ?ange 28 which presents
outer casing passes upward over or through the
a smooth and ?nished appearance to the open
medicament or ?ller within the holder to the
end of the casing, insuring the user against ac
cident caused by sharp or rough edges. This 45 opening 28 in the nozzle 24.
The holder 4 is normally urged outwardly to
?ange also serves to limit outward movement of
ward the projected position shown in Fig. 3 by
the holder 4 ‘under the action of spring 8. The
lower or bottom end of the casing is closed by a
means of the spring 8. The lowermost turn of
the spring 6 is squared and lies ?ush against the
conventional end wall 30.
Telescopically mounted within the external
inner surface of the bottom wall 30 of the casing
2. I The internal diameter of the spring ‘8 is slight
casing or shell 2 is the open ended cylindrical
1y greater than the external diameter of the lower
holder 4. The upper end of the holder is formed
’ portion 42 of the medicament holder 4 and sur
with the tapered nostril engaging portion or
rounds the lower portion of the holder. The
nozzle 24 having the central opening 26 therein.
upper end of spring 8 is squared and bears against
The material about the opening 28 is drifted in
ward as shown at 32 so that the end surface of
the downwardly facing shoulder 44 of the guide
the nozzle is smooth and free from exposed rough
edges which might engage the nostril and the
surface is ?at and positioned at right angles to
ribs 38.
the axis of the holder 4 so as to present a sealable
surface which may be engaged by the sealing
member I4. With this construction both the .
nozzle and the open end of the external casing
may be simultaneously sealed by the sealing mem
ber l4, carried by cap 8.
»
Thus the spring is so placed as to avoid
interference with the contents of the holder, and
the use ‘of separate or special members for con
?ning the spring is unnecessary. The construc
tion described is simple and easy to produce and
provides for sealing of both the holder and cas
ing when in retracted position. Moreover, the
holder is supported and guided in its movement
without reducing or limiting the volume or the
holder or resorting to additional elements or com
In order to provide adequate channels for the
plicated structure. At the same time the device
flow of air into and through the casing and holder,
presents a neat and attractive appearance and is
the holder 4 is provided with a plurality of cir
always in a sanitary condition.
cumferentially spaced vent grooves 34 which ex
tend from a point below the beginning of the 70 That form of the invention shown'in Figs. 6 to
8 inclusive is in many respects similar to the de
tapered nozzle 24 to a point at or below the center
of the holder.v These grooves project inwardly
vice shown in Figs. 1 to 5 inclusive. Like numerals
are therefore used for corrmponding parts. In this
on the holder and are of such length as to provide
form of the device the outer casing 2 receives the
plurality of air passages which extend from the
exterior of the casing past the flange 24 at the 75 holder 4 which is normally urged toward a project
assess; ' '
.
a
-
6
‘
1'
.
'
ed position by the spring 6. The cap ai‘cooperates"
larlyin the construction off-Figs. 9 and 10 the
withthe nozzle‘ 24 to seal the outer end of. the ,
spring‘ 6 bears against‘ the abutment washer 5%
nozzle and to'seal thelopen end of the casing 2. v when the parts are assembled.
Vent grooves 36 are also ‘similarly formed in the Y ‘ - ‘In each ofthe constructions shown the ‘holder
holder 5.‘ and guide ribs 38 extend from the ex-‘
is-depressed after the'parts are assembled and
‘ternal surface with-upper shoulders t?jfonned' to
. the upper-‘end 58 of the casing 2 is spun ‘inward
tov form the retaining-?ange 28. ' The structure
1 is then completed and ready for use and the
engage the inturned ?angev 28 formed on the outer
casing 2.
.
_
.
In this form of the invention, however, the guide ' ' cap 8 can be applied to the casingto-seal the casribs 38 extend downwardly‘ from pointsibelow 10 ing and noz'zle. upper vends of the vent grooves to the lowermost
- From, the foregoing it'wilbbeseen that the
end. of the medicament holder. The holder is
present invention provides. novel and improved
- vthus supportedthroughout the greater part of itsv . venting means to insure a free ?ow‘ of air through ,
.length to further prevent the tilting‘and jam
the device and .yet'embodies a limited number of
ming of the medicament holder during its move 15 elements each of which is capable of ready manu
ment. . Moreover, the spring 6 in this form of my
facture and assembly. The inhaler further em
>
invention, has an external diameter ‘less than-the
bodies improved sealing and closing means, ' as
internal diameter of the medicament‘holders d,
well as improved guiding ‘and aligning means
and islocated within the holder._ The lowermost
which preclude ‘tilting, jamming or misalignment
turn of ‘the spring 6 bears against the inner sur-v 20 of the parts and insure continuous smooth opera
» faceof the end wall 39 and its uppermost turn
tion of the device.
_
'
7
bears against downwardly facing shoulders d6
While typical and preferred embodiments of the
formed at the inner ends of the vent grooves dd.
present invention have been illustrated in the
- The form of the invention shown in Figs. 9 and
drawings and described'above, it will be apparent
10 is also similar to the one shown in Figs. 1' ‘to 5
that numerous other changes, modi?cations and g
inclusive, but in this form'ofv the invention guide
the full use of equivalentsmay be resorted to in
ribs 48fbetween vent grooves 36 are relatively the practice of the invention. In view thereof
_ short, and additional guide ribs 50 extend length
7 wise of the holder- adjacent the lower end there
it should be. understood that the constructions ,
shown are intended tobe illustrative only and are
of. The guide ribs 48 engage‘ the inturned ?ange 30 not
intended to limit ‘the scope of the following
28 on the upper end of the casing 2 when the
claims.
, holder is projected so as to limit the outward
I claim:
’
_
‘
, '
movement of the holder whereas the guide ribs 50
'1. An inhaler comprising a casing, a urnedicai
terminate at their upper ends in inwardly turned
ment holder slidably movable ‘within said casing
shoulders 52. Within the holder there is mount 35 and having a lower portion and a. nozzle portion,
ed an abutment washer 54 more clearly shown‘in _ air channels formed in said holder and positioned
Fig. 10. The external con?guration of the washer
‘extending longitudinallyin the-lower portion
54 is substantially the same as the internal con
thereof, said holder lying entirely within said cas
?guration of the holder taken at the ribs 50 and is
when in one position to which it is movable,
provided with projections 55 which abut shoulders 40 ing
longitudinallyextending ribs located between said
52 to hold the washer in place and provide a hear
‘air channels and projecting‘ outwardly from the
ing ‘for the upper end of a spring 6 mounted-‘be
exterior surface of said holder to engage said
tween the washer 54 and the ‘lower end wall 30 of
the casing 2.
,
-
'
_
In this construction the size of :the spring need
not be so accurately maintained since the washer
casing and guide the holder on movement thereof.
ribspresenting downwardly facing ‘shoulders
45 said
on the lowermost ends thereof and springmeans
'may be formed to extend further into the holder -
than the lower ends oi’ the vent groove against
which the spring abuts in that form of the inven
engaging said shoulders and casing» for moving
said holder with respect to said casing to a. posi-g
tion in which portions only ofsaid air channels’
are exposed tolthe exterior of said casing.
_
tion shown in Figs. 6 to 8. Furthermore, it is not 50 ' 2. An inhalercomprising an open ended casing,
necessary to extend the guiding ribs throughout
the length of the holder, sincethe guide ribs 48
and 58 are spaced suillciently to provide adequate
bearing and support for the holder in its move
" ment within the outer casing.
In each of the forms of the invention described
the outer casing, prior to assembly, is completely
formed except for the inwardly turned ?ange 28
aholder movable to a position entirely within said
casing and comprising'a lower portion and an
upper nozzle'portion, spring means engaging the
end wall of said casing and embracing the lower
' portion of said holder‘ for. urging said holder out
wardly'from said casing, air conducting passages
spaced around the exterior surface of the lower
portion of said holder below saidnozzle portion,
at the open upper end of the casing. This flange > guide ribs located between said air conducting
is not formed until after the elements are -assem.-. 60. passages so as to engage said casing“and extend
bled'and the casing is therefore supplied to those
who charge the holder with the medicament with
the end thereof extended as shown in dotted lines
at 58 in Fig. 5. In assembling theelements ,the
spring 6 is inserted into the outer casing so as to
,ing partially along said holder in a. longitudinal
direction, said guide ribs being formed with down
wardly facing shoulders on their lower extremi
ties for engaging the‘ uppermost turn of said
spring means and with upwardly facing shoulders
rest against the base 30 of the casing. The hold
on their uppermost extremities, and means on
er, charged with vaporizable medicament, is then
said casing cooperating with the upwardly facing
inserted into the ‘casing 2 so that the spring sur
‘ shoulders on‘ the guide ribs for limiting the out
rounds the holder and engages the downwardly ‘ ward movement of said holder with respect to
facing shoulders 44 of, the guide ribs as shown in 70 the casing the upper portion of said air passages
, Figs. l to 5. When using the construction of Figs.
being exposed to the exterior of said open ended
_ 6 to 8 the spring 6 extends into the interior of the
holder and its .upper and bears against the in
I wardly extending downwardly facing shoulder 86 '
at the lower ends of the vent grooves 34. Simi
casingywhen said holder isg'rurged upwardly to its
uppermost position. '
__ -_
i
'
.
' 3. An inhaler comprising a casing, a medica
ment holder having a lower portion and an upper
7
2,456,451
nozzle portion slidably movable in said casing to
a position in which said holder is housed entirely
within said casing, depressions in the outer sur
face of said holder forming airwconducting pas
sages extending longitudinally of the lower por
tion of said holder and located so as to be exposed
to the exterior of said casing when the holder is
in one position to which it is movable, said air
passages being spaced from said nozzle portion,
8
extremities for engaging the uppermost tum of
said spring means and with ‘upwardly facing
shoulders on their uppermost extremities, means
on said casing cooperating with the upwardly fac
ing shoulders on the guide ribs for limiting the
outward movement of said holder with respect to
the casing, the upper portion of said air passages
being exposed to the exterior of said open ended
casing when said holder is urged upwardly to its
guide‘ ribs on said holder located between said 10 uppermost position, and a cap for said outer cas
ing, said cap having a sealing disc in the top
passages and extending longitudinally of the
thereof adapted to tightly engage the end of said
holder, said guide ribs being formed with down
nozzle and the open end of said casing when said
wardly facing shoulders at the lower ends thereof
cap is applied to ‘said casing.
and upwardly facing shoulders at the upper ends
thereof, spring means engaging the end wall of 15 6. An inhaler comprising a casing, a medica
said casing and embracing the lower portion of
said holder with the uppermost turn thereof bear
me against said downwardly facing shoulders for
urging said holder outwardly from said casing
ment holder having a lower portion and an upper
nozzle portion slidably movable in said casing to
a position in which said holder is housed entirely
within said casing, depressions in the outer sur
and an inwardly, turned ?ange formed on the 20 face of said holder forming air conducting pas
casing adjacent the open end thereof for engag
sages extending longltudinally of the lower por
ing said upwardly facing shoulders to limit out
tion of said holder, said air passages being located
ward movement of said holder when the air con
so as to be exposed to the exterior of said casing
ducting passages are partially exposed to the
when the holder is in one position to which it is
exterior of the casing.
4
movable, said air passages being spaced from said
4. An inhaler comprising an open ended casing,
nozzle portion, guide ribs on said holder located
a holder movable to a position entirely within said
between said passages and extending longitudi
casing and having a lower portion and an upper
nally of the holder, said guide ribs being formed
nozzle portion, said nozzle portion being movable
with downwardly facing shoulders at the lower
through the open end of said casing, said holder . ends thereof and ‘upwardly facing shoulders at
having depressions formed in the outer surface of
the upper ends thereof, spring means engaging
the lower portion thereof providing outwardly
the end wall ofsaid casing and embracing the
facing air channels extending longitudinally of
lower portion of said holder with the uppermost
the holder, said depressions extending inwardly
turn thereof bearing against said downwardly
from the inner surface of said holder and present
facing
shoulders for urging said holder outwardly
ing downwardly facing shoulders at the lower
from said casing, an inwardly turned ?ange
ends of said depressions, spring means bearing
formed on the casing adjacent the open end
against said shoulders and against said casing for
thereof for engaging said upwardly facing shoul
urging said nozzle outward through the open end
of said casing, and longitudinally extending bear 40 ders to ‘limit outward movement of said holder
when the air conducting passages are partially
' ing surfaces on said casing and holder located
exposed to the exterior of the casing, and a cap
between said channels for supporting and guiding
for said outer casing, said cap having a. sealing
said holder in its movement relative to said casing.
element located in the top thereof engageable with
5. An inhaler comprising an open ended casing,
the end of said nozzle and the end of said casing
a holder movable to a position entirely within said
when said cap is applied to said gasing.
casing and comprising a lower portion and an
DONALD A, SEAVER.
upper nozzle portion, spring means engaging the
end wall of said casing and embracing the lower
REFERENCES CITED
portion of said holder, for urging said holder out
wardly from said casing, air conducting passages 50 The following references are of record in the
spaced around the exterior surface of the lower
file of this patent:
portion of said holder and spaced from said nozzle
UNITED STATES PATENTS
portion, guide ribs located between said air con
ducting passages so as to engage said casing and.
Number
Name
.
Date
extending partially along said holder in a longi 55 2,159,111
Tobler __; ________ __ May 23, 1939
tudinal direction, said guide ribs being formed
with downwardly facing shoulders on their lower
2,191,016
Hoffman _________ __ Feb. 20, 1940
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