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Патент USA US2006484

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July 2, 1935.
Filed Julj 5l, 1933
, 2,006,484
Patented -July 2, 1935
. ~
TUBE cLosUns
John M. Schooley, Madison, lll., assignor of one
half to Harry 0. Schooley, Madison, lll._
Application July 31, 1933, Serial No. 682,973
5 Claims. (Cl. 221-60)
'This invention relates to -closures, and more portion of the sealing cup member has a U-'shaped h
particularly to closure devices for collapsible tubes, valve slit 8 therein forming a flap 9 which is adapt
such as for example, toothpaste tubes and the ed _to open up and form a valve opening Ill for al
. lowing passage of the contents of the tube when it
The principal object- of the present invention is is desired to remove the contents therefrom.
In order to keep the flap 9 closed and thus keep i
to provide a collapsible tubeclosure device which
will seal the discharge opening through the neck l the discharge opening 4 of the tube sealed against
of the'tube when the device is closed and prevent removal of the contents, a'ilat metallic closure
escape of the contents from the tube even though member I I is mounted on the tube neck adjacent
to the flat outer end portion of the sealing cup 10
10 considerable pressure be applied thereto.
Other objects are to provide a tube closure de member for sliding movement across the dis
vice that can be readily manipulated to open and charge opening. While the closure member may
close the discharge opening; that is simple in con be slidably- mounted on the tube neck in any sult- A `
struction; and that is comparatively inexpensive able manner, I prefer to provide the end of the
tube neck with two ears I2 located at opposite l5
15 to manufacture.
The invention consists in the collapsible tube sides of the discharge opening 4 through the neck,
closure device, and in the parts, combinations, andy and the closure member is mounted for slidingarrangements of parts hereinafter described and movement between said ears and the end of the
tube neck. Preferably, the ears I2 may be beveled
In the accompanying drawing, which forms part as at I3 so that the' tube neck may be wiped with 20
:of this specification, and wherein like reference out any appreciable discomfort to the iingers of
symbols refer to like parts wherever’they occur, . the user.
Each end ~of the closure member is- provided
_ Fig. 1 is a top plan view of a collapsible tube
equipped with a `closure device embodying my in with a ñange I4 extending toward _the conical 25.
end portion of the tube; and these ilanges are
Q25 -vention;
arranged to engage opposite sides of the tube
Fig. 2' is a side view of Fig. 1;
for stopping the closure member in open
Fig. 3 is a vertical section along
and closed positions; and the closure member has
Fig. 2;
Fig. 41s a vertical section along the line 4-4 in -an outlet opening> I5 near one end in position to
register with the valve slit 8 through the dat end 30
30 i_;Flg. 1 with the closure device shown in closed posi
portion of the sealing cup member when the .
Fig. 5 is a view similar to Fig. 4 with the closure closure member is moved into open position.
In order to keep the closure member ,in closed.
device shown in open position; ,
Fig. 6 is a perspective view of the sealing cup position, a groove I6 is provided in the conical end 35
portion of the tube adjacent to the tube neck so
35 member of the closure device; and
Fig. '1 is- a perspective view of a modified form that when the closure member is 'moved into
closed position, the lower end of the ñange I4 op
of sealing cup member.
In the drawing is shown a collapsible tube I posite the end provided with the outlet opening
snap into such'groove and keep the closure
which is provided with a relatively stiff conical will
member locked in such position. Obviously, if
40 end portion 2 having a bell-shaped neck 3. ' The
neck 3 has a cylindrical discharge opening 4 ex-` desired, a similar arrangement could be pro
tending therethrough _and opening into the inside vided to keep the closure member locked in open
of the tube I, and a sealing cup member generally
some'instances, wherethe tube is to containdesignated as 5 and made of flexible material, such a In
comparatively thin paste or liquid matter, it '
45 as rubber or the like, is disposed in the discharge
may be preferable to use a sealing cup member
opening 4 through the neck of the tube.- .- ..
of the form shown in Fig. '7. This form of sealing
The sealing cup member, shown in Figs. 1 to 6, cup member is similar in all respects to the form .
inclusive, ofthe drawing, comprises a hollow cylin shown in Figs. 1- to 6, inclusive, with the excep
Ldrical or tubular body portion 6 that has an in tion that a straight lvalve slit 8a is provided in the 50
50 tegral closed flat disc-like Iouter end portion 1.
’ They sealing cup member does not fit tightly in the flat outer end portion of the sealing cup member
discharge opening 4, but it is made of such diame-' instead of the ’U-shaped valve slit.
>With a tube closure conforming vto my inven
> ter, with respect to the diameter of the discharge
opening, that it will move axially therein if pres tion, when the closure member is closed, the dis
55 -sure is applied to either of its ends. The flat end charge opening of the tube is completely sealed, -55
and thevcontents thereofcannot be forced there- l opening. adjacent to the outer end portionv oi' said
from even though considerable pressure'be ap
sealing cup member.
plied to the tube. If the closure member 'is closed,
‘3.- >'I'he combination of a collapsible tube having
and pressure` is accidentally ll'piîvlledy to the tube a discharge opening, a flexible sealing cup mem
during handling thereof, such- pressure will force ber „disposed in said opening, said sealing cup
the contents thereof into the sealing cupjmem
member comprising a tubular body portion hav
ber and thus press the ñat .end portion thereofA ing aY closed ñat outer end portion provided with
iiatagainst the.' closure member to completely a valve slit therein„and a`ilat closure m‘ember
.close up the valve slit and also force the wall o!v mounted on‘said tube for sliding movement across
said sealing cup member tightly against the wall said discharge opening adjacent ‘to the outer endy
of the discharge opening to thoroughly seal the oi.' said sealing cup member- and having an outlet 10
In order to use the tube, all that is necessary to
do is to move the closure member into open po
opening in position to register with the valve slit
in the sealing cup member.
4. The combination of a collapsibletube hav
ing a discharge opening, a ilexible sealing mem
ber having a valve slit disposed in said opening,
and a closure member mounted on said tube i'or
sliding movement across said discharge opening
to the outer end of said 'sealing member
2.0 with the closure member- which is the case when adjacent
an outlet opening in~ position to regis
such member is opened.
with the valve slit in the sealing member.
Obviously, the tube closure construction here ’ ter
, 5. The combination of a collapsible tube> pro
inabove described admits of considerable varia , vided
with a conical end portion having a neck
' tions without departing from the scope of the in
25 vention; accordingly, I do not wish to be limited extending therefrom, said neck having a dis
sition, which can be readily accomplished bya
mere “ilip” of the user's thumb, >and then to
apply pressure to thetube. Buch pressure will
force the contents oi' 'the tube through the valve
.slit which is free to open up when it is in register
_charge opening extending therethrough and com
to the precise constructions shown> and described. municatin'g with the inside of said tube, 'a rubber
I claim:
sealing cup member disposed in said opening. said
1. The combination of4 a collapsible 'tube having sealing cup member comprising a tubular body
a discharge opening, a iiexible sealing member
30 having a valve slit disposed in said opening, said
sealing member being free to move axially there
- in, and a closure member movablv mounted on
said _tube and adapted to move across said open
ing adjacent to the valve slit in said sealing mem
portion extending around the wall of said dis
charge opening and having- a closed ilat disc-like
outer end portion provided with a; valve slit there
in, a pair of ears provided on the end or the tube
neck at opposite sides ot the discharge opening
therethrough, and a fiat closure member mounted
for sliding movementbetween said ears and the ’
2. The combination o1’ a collapsible tube having end of the tube neck and having an outlet open
a discharge opening, a ilexiblesealing cup mem . ing
therethrough, said closure member having
u ber mounted therein, said member comprising a~ `
at its ends extending toward the conical
tubular body portion being free tomove axially end portion
oi' the tube, and said conical end
in said opening and having a closed ñat outer lend portion having
'A40 portion
a groove therein foraccommodatè 40
provided with a valve slit therein. anda
i‘lat closure member movably mounted .on said ing the end portion of one of said‘ñanges.
- tube and adapted to moveacross said discharge
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