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Патент USA US2115033

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April 26, 1938.
R. c. MITCHELL
2,1 15,033 ‘
DISPENSING DEVICE FOR CARTONS
Filed June 1, 1936
3mm
Dobevt C. Mitchell
wgm 1'.
2,115,033
Patented Apr. 26', 1938
vUNITED STATES PATENT OFFICE
2,115,033
msrnnsmo DEVICE Fon CARTONS
Robert 0. Mitchell, near Edmonds, Wash.
Application June 1, 1936, Serial No. 82,836
15 Claims. (Cl. 221-23)
My invention relates to the dispensing of ma
of the device, shown in place upon a carton, with
terials from cartons; for example, for dispensing parts broken away for better illustration.
dry cereals, powdered soap or soap chips, and
Figure 2 is a longitudinal section through the
the like, from their cartons.~ It concerns a means
for piercing a wall ‘of the carton to cut a tab
from the wall which remains attached along one
edge so that it may be hinged back to form a hole,‘
and securing the piercing means in place, the
- same having an apertured cover plate through
which the material may be poured, and further,
device, on the line 2—2 of Figure 1.
Figure 3 is an end elevation of the device, taken
from the inside of the carton, showing the device
locked in place within the carton.
Figure 4 is a perspective view of the device, with
parts in about the position they would occupy
when inserted within the carton.
10
Figure 5 is a section similar to Figure 2, show
‘it concerns the employment, in conjunction with
such a piercing means, which remains attached ' ing a modi?ed form of the device.
to the carton, of valve means to control the dis
Figure 6 is an elevation indicating the manner
pensing of the materials.
of using the device, and the preferred manner of
Such-cartons are usually opened by tearing oil.’ securing the same within a carton.
15
the cover ?ap, which is glued down, or cutting a
It has not been attempted in the drawing to
hole in a corner or in a'wall of the carton with
show the various folds of the carton, as these will
a knife or like implement. In either such case varying in different cartons. 'It is preferred that
the carton, after using some ofth‘e material, is the device be inserted in an upper corner of a.
set aside, and if it happens to be upset the ma
sidewall of the carton, but when inserted the 20
terial is likely to spill from the carton. Hence carton would normally be turned on its edge,
one of the objects of my invention'is to provide so that the knife may be pressed downwardly,
means which will make a hole in the carton, so and hence in Figures 1, 2, 3 and 5 the top of the
that the material may be readily dispensed, but carton is indicated at 90, the side wall which is to
which has incorporated with it a valve which is be pierced at 9, and the front or back wall‘ at 9|.
25
normally held closed, so'that if the carton is ac
’ For piercing the wall 9 a knife is provided which
cidentally upset the material‘will not spill there
in cross section is substantially U-shaped, as is
from.
.
seen in Figure 3. Preferably it comprises a sheet
It is a further object to provide a device of the
I, the lower end of which is sharpened to a point,
nature indicated, which will positively move aside
a tab. displacement of which forms the hole, pref
erably without detaching it from the wall of the
carton, and which will hold it back out of the way
bent to form two side ?anges Ill and II, the edges
of which are also sharpened. To the opposite
end of this knife is secured a cover plate, repre~
sénted in general by the numeral 2, which is
‘preferably of composite construction, as will be
so that there is a clear opening left for’ the
emission of the material when desired. Associ-" described hereafter.v Thiscover plate preferably
35
ated with this object is the further object to pro
extends outwardly somewhat from the outline
vide in such a device a means for locking the de
vice in its ?nal place in the carton, and prefer
ably to accomplish this locking automatically by
the movement of the piercing device to its ?nal
position with relation to the carton.
It is a further object to provide such a device
which shall be simple, convenient to use, without
Li
of the knife I, II), II, -to provide ?anges so that
when it abuts the wall 9 these ?anges will ?t
closely against the wall outside of the delivery
aperture 20, and will prevent leakage of material. ' 40
When the knife is pressed into the wall 9, in the
manner illustrated in Figure 2, it will be ob
served that it cuts a tab 92 “from the wall, and the
detachable parts, and in which the parts are so ' pressure tends to move this tab inwardly. Means
arranged that there is little likelihood of ac
are associated with the knife to throw this tab
cidental movement of the valve means toward 'backwardly, and in so doing these means serve 45
open position.
to lock the knife in place within the carton. Thus
Other details, particularly such as relate to the a ?ap 3 is hing'edly mounted at 30 across the open
mechanical structure of the device, will appear - end of the U formed by the knife’s cross section
as this speci?cation progresses.
adjacent the cover plate. A spring 3| acts upon
My invention comprises the novel piercing and the ?ap, urging it outwardly into the dash line
closure forming means, and the novel parts and position of Figure 2, or as shown in Figure 3.
combination and arrangement thereof relatively
Obviously the ?ap cannot enter the hole 93 left
to each other, as shown in the accompanying by the cutting away of the tab while in this out
drawing, and as will be hereinafter more particu
wardly thrown position, and to hold it within the
larly described and de?ned.
'
In the accompanying drawing I have shown my
invention in‘ a form which atpresent is preferred
by me, together with a modi?cation.
Figure 1 is an end elevation of the outer end
(30
outline of the U-shaped knife during its entry I
may provide means such as a latch, as 4, piv'ote
at 40 upon the knife, and spring held in engage
ment with the flap by the spring 4|. This latch,
engaging the swinging edge of the ?ap, holds it
2,115,033
2.
in its full line position of Figure 2 until the cover
'plate is substantially in abutment with the wall 9.
Here it may be released, and preferably the re
leasing means are automatic. To that end I pro—
vide a. trigger 42 projecting through the wall of
as the cover plate 2 approaches the wall 9, the
trigger 42 releases the flap, which by now is
alongside the tab 92, and the spring 3| folds the
two backward to lie adjacent the inner face of
the wall 9, providing clear access to the hole 93,
and locking the device in place, assisted also by
the knife plate I, for engagement with the edge
of the hole 93 as it passes therethrough, this trig ‘the trigger 42. Now, whenever it is desired to
gcr being formed as a part of the latch 4. When dispense materials from within thecarton, it is
the trigger 42 is depressed‘ by its engagement raised, as indicated in/Figure 6, the ?nger plate
‘I is pressed inward in opposition to the spring
10 with the edge of the hole I! the latch 4 is released,
and the ?ap hwhich‘ by this time lies adjacent 62, swinging the valve plate out of the way of the
the originally outer face of the tab 82, is thrown aperture 20, andv permitting the material to be
back by the force of its spring ll to hold the ?ap
into the dash line position of Figure 2, and this
15 serves as a means of securing the knife and asso
ciated parts in the wall of the carton.
,
In addition the latch 42, after it has passed the
edge of the hole 93, springs outward, and en
emitted through this aperture. when su?lcient
material has been dispensed, the ?nger plate Si
is released, and the spring 62 closes the valve
plate 6, wiping off the surface and effecting a
tight closure. If the package happens to be up
set and falls, it is unlikely that it will fall insuch
gages the inner face of the wall 9, serving as a a manner or withsumcient force to move the
-20 further lock, as is apparent in Figure 2. The vvalve plate 6, and the spring, 62 may be made as
knife and its associated parts are not intended to ' strong as may be necessary in order to prevent
be removed until the material is completely dis
pensed and the carton is empty, but when this
occurs the carton wall may be torn or otherwise
‘forced to permit removal of the knife.
In order that accidental engagement of the
tab 92 with the latch 4 may not release the latch,
as the knife is being pressed into place, I prefer to
employ a guard, indicated as the cross bar 5,
30 located in advance of vthe flap 3, which guard
upon engaging the tab will force it down into
the interior of the carton, so that when the flap
3 enters the carton it will lie adjacent the in
35
wardly folded ?ap 92.
If it is not desired to employ the positive lock
ing means the flap _may still be held reasonably
out of the way by the provision of a guard, such
as is shown in Figure 5, in the form of a curved
bar 50, which willv engage the tab 92 and hold it
40 downwardly into the interior of the carton, at an
angle to the wall 9, as shown in dash lines in
Figure 5. In this form reliance for holding the
knife and associated parts in position is placed
upon the frictional engagement of the knife
45 with the walls of the carton. It will be noted
that the walls of the knife are apertured, as ing
dicated at ii, to admit the last particles of the
material within the carton to the space within
the walls of the knife, so that there is not a
pocket formed to retain any appreciable part of
the material, when the carton'is nearly empty.
The cover ‘plate 2 is preferably made up of two
plates 2| and 22, slightly spaced apart to receive
a valve plate 6 between them. The two plates are
suitably apertured to provide the aperture 20
heretofore referred to, which in the ?nal position
of the knife‘ and associated parts registers with
the hole 93, and the valve plate 6 in its normal
position covers the aperture 2. and closes it. The
valve plate is’ pivotally mounted at 6. upon the
‘ cover plate, and is provided with a suitable ?n
ger-engaging plate 6| whereby it may be swung
in opposition to a spring 62, which tends to hold
it in closed position. The spring 62 is preferably
65 enclosed within a recess between the plates 2|
and 22, as is best seen in Figure 1, so that the‘ en
tire device is compact and simple to construct and
assemble.
,
,
As will now be apparent, the device is inserted,
the flap 3 having ?rst been thrown back in oppo—
sition to its spring 2| until it is engaged and held
by ‘the latch l, by pressing ‘the knife I, II and II
into the wall 9 of thecarton, the tab 52 being left
hingedly attached along one edge, and being fold
75 ed back by engagement with the guard 5. Finally,
this.
>
'
What I claim as my invention is:
l
r
1. A dispenser for cartons comprising a. knife
shaped to cut a tab from the wall of the carton,.
as it enters, to leave the tab attached along one
edge, means associated with and movable relative
to the knife, after the latter’s insertion, to hold
the tab back from its original position, and valve
means carried by the knife, and when the latter
is inserted controlling emission of materials
through the hole left by the tab.
»
‘w
2. A dispenser'for ‘cartons comprising a knife
shaped to'cut a tab from the wall of the carton,
as it enters, means associated with and movable
relative to the knife, after the latter’s insertion,
to secure the same in its ?nal inserted position,
and valve means carried by the knife, and when
the latter is inserted controlling emission of,
materials through the hole left by the ‘tab.
3. A dispenser for cartons comprising an aper
tured cover plate, a knife projecting in a direc
tion normal to the plane of the cover plate, and
shaped to cut a tab from the wall of the carton,
as it enters, means carried by and movable rela
tive to the knife, after the latter’s insertion, to
secure the cover plate in its ?nal position, abut
ting the outer face ofthe carton, with its aper
ture registering with the hole formed by the cut
ting away of the tab, and valve means secured
upon the cover plate and operable to control
emission of materials through such hole and
aperture.
’
.
4. A dispenser for cartons comprising a knife
of general U-shape formed to cut a tab from the.
wall of a carton, as it enters, to leave the tab
attached along one edge, means associated with
and movable relative to the knife, after the
latter’s insertion, to hold the tab back from its
originalposition, and a cover plate carried by the
knife in position to abut the wall wherein the tab
Bent, and having an aperture registering with
the hole left by the cutting of the tab.
»
5. A dispenser for cartons comprising a knife
of general U-shape formed to cut a tab from the
wall of a cart-on,v as it enters, to leave the tab
attached along one edge, means carried by the
65
inserted part of the knife, and movable relative
to the knife, after the latter’s insertion, to hold 70
the tab back from its original position, a cover
plate carried by the knife in position to abut the
wall wherein the tab is cut, and having an aper
ture registering with the hole left by the cutting
of the tab, and valve means carried by the cover 75
3
2,115,088
plate and operable to control emission of mate
rials through the hole and aperture.
6. A dispenser for cartons comprising a knife
shaped to cut a tab from the wall of the carton,
as it enters, a ?ap carried by the knife, means to
secure the ?ap in position to engage the originally
outer face of‘the tab, during entrance of the
knife, means to release the ?ap to fold the tab
inward adjacent the inner face of the wall from
10 which it was cut, and valve means carried by the
knife, and when the latter is inserted controlling
emission of materials through the hole left by
the folded back tab.
7. A dispenser for cartons comprising a knife
formed of general U-shape to cut a tab from the
wall of a carton, as it enters, to leave the tab
attached along one edge, a cover plate carried by
the knife in position to abut the wall wherein the
tab is cut, a ?ap pivotally mounted on the knife
20 along an axis disposed adjacent the cover plate
and extending from one leg of the U across to
the opposite leg, means to secure the ?ap in posi
tion to engage the originally outer face of the
tab, during entrance of the knife, means to release
25 the ?ap for outward swinging to fold the tab
against the inner face of the wall from which it
spring into a folded back position adjacent the '
inner face of the carton wall, and a cover plate
carried by the knife in position to contact the
outer face of the carton wall, and having an
aperture registering with the hole left by the tab.
11. A dispenser for cartons comprising a knife
formed of general U-shape in cross-section, to
cut a tab from the wall of a carton, as it enters“
to leave the tab attached along the edge corre
sponding to the open side of the U, a cover plate
carried by the knife in position to ?nally abut the
wall wherein the tab is cut, and apertured to reg—
ister with the hole left by the tab, a spring
urged flap pivoted on the knife along an axis ex
tending transversely across the open end of the
U, adjacent the cover plate, latch means to hold
the ?ap, in opposition to its spring, within the
outline of the hole left by the tab, a guard dis
posed in advance of the ?ap to initially bend the
tab inward, whereby the ?ap may lie alongside 20
the tab, and means operable by movement of
the knife, as the cover plate reaches its ?nal
position, to release said latch means, whereby the
flap, under the in?uence of its spring, folds the
tab back against the inner face of a carton wall. 25
12. The combination of claim 11, wherein the
was cut, a spring urging the ?ap in such direc- ' latch-releasing means comprises a trigger piv
tion when released, and the cover plate having
an aperture registering with the hole left by the
30 tab.
8. A dispenser for cartons comprising a knife
shaped to cut a tab, attached along one edge,
from the wall of the carton, as it enters, a ?ap
pivotally mounted upon the knife, a spring urging
35 the ?ap in the direction of the attached edge
of the tab, latch means to hold the ?ap retracted
within the outlines of the hole left by the tab,
a guard carried by the knife, in advance of the
otally mounted on the knife, and spring-held pro
jecting in position to engage and be depressed for
release by the cut edge of the hole in the carton, '
and thereafter engaging the inner face of the
carton wall to secure the knife and cover plate in
position.
13. A dispenser for cartons comprising an aper
tured cover plate, a valve plate mounted on said
cover plate and guided for movement in the 35
latter’s plane to cover or uncover the aperture,
a spring urging the valve plate towards closed
?ap, to fold the tab initially inward, whereby the
position, a knife disposed at right angles to said
40 retracted ?ap as it advances lies adjacent the
originally outer face of the tab, means to release
the ?ap to fold the tab, under the in?uence of the
cover plate to enter a carton, and means mounted
spring, from its initially inwardly'folded position
to a position adjacent the inner face of the carton
45 wall, and a cover plate carried by the knife in
position to contact the outer face of the carton
upon and movable relative to the knife, after the 40
latter’s entrance within the carton, to draw said
cover plate inwardly to close contact with the
outside of a carton wall, about the hole left
therein by the entrance of the knife.
14. A dispenser for cartons comprising two 45
apertured and slightly spaced plates, a valve
wall, and having an aperture registering with the
hole left by the tab.
9. A dispenser for cartons comprising a knife
plate received in such space for movement in its
60 shaped to cut a tab from the wall of the carton,
spring likewise received in such space and urging
as it enters, a spring-pressed ?ap carried by the
knife, means to latch the flap, against the force
of its spring, in position to engage the originally
outer face of the tab, during entrance of the
55 knife and ?ap, means to release the ?ap, after
it has entered the hole left by the tab, to fold
the tab inward by the spring action of. the flap,
to a position adjacent the inner face of the wall
from which it was cut, and valve means carried
60 by the knife, and when the latter is inserted
controlling emission of materialsthrough the hole
in the carton wall.
\l
10. A dispenser for cartons comprising a knife
shaped to cut a tab, attached along one edge,
65 from the wall of the carton, as it enters, a ?ap
carried by the knife, a spring urging the flap in
the direction of the attached edge of the tab,
latch means to hold the ?ap retracted withinthe
outlines of the hole left by the tab, means carried
by the knife and engageable with the carton, as
the knife reaches its ?nal inserted position, by
such engagement to release the latch means, to
urge the tab, under the in?uence of the ?ap and
own plane to cover or uncover the aperture, a
the valve plate towards closed position, and 50
means carried by one of said plates to pierce a
hole in a carton, in registry with said apertures,
and means carried by the latter means, and dis~
posed within the carton, when the latter is
pierced, to create an inwardly directed force act
ing on said plates to draw and hold them in close
contact with the outer surface of the pierced car
ton wall.
15. A dispenser for cartons comprising an aper
tured cover plate, carton piercing means associ 60
ated therewith for cutting and entering‘a hole in
a. carton wall, and means carried by such piercing
means, and disposed within the carton when the
piercing means has entered the carton, for draw~
ing the cover plate into abutting relation to such 65
wall, with its aperture in registry with the hole, a
valve plate pivotally mounted on said cover plate
for movement in the plane of the latter, to open
or close said aperture, and spring means urging 70
the valve plate towards closed position.
ROBERT C. MITCHELL.
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