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Патент USA US3095152

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June 25, 1963
Filed Oct. 4, 1962
H 0' 5
2 Sheets-Sheet 1
Pusan; J. f/FA/A/ESSE')’
June 25, 1963
Filed Oct. 4, 1962
Sheets-Sheet 2
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sates Fatent Qt
Fatented June 25, 1953
Russell J. Hennessey, St. Paul, Minn, assignor to Waldorf
Paper Products Company, St. Paul, Minn, ‘a corpora
tion of Minnesota
Filed Dot. 4, 1962, Ser. No. 228,434
6 Claims. (Cl. 229-47)
the arrangement after the carton has been opened and
FIGURE 3 is a perspective view of the pouring spent
in opened position for pouring.
FIGURE 4- is a perspective view of the carton during
- the reclosing operation, the carton being partially re
FIGURE 5 is a sectional view through a portion of the
top of the carton, the position of the section 'being indi
This invention relates to an improvement for pouring
cated by the line -5—5 of FIGURE 2.
spout cartons and deals particularly with a carton having
FIGURE 6 is a perspective view of the carton top in
a spout which may be opened up for dispensing the con
partially closed position.
tents, and which may be reclosed to provide a relatively
FIGURE 7 is a diagrammatic view of the blank from
tight closure.
Pouring spouts have been made on regular paste end
cartons by employing one of the closing ?aps secured to
a side wall and portions of the closing ?aps are connected
to the face panels. A spout of generally U-shaped cross
section is formed by portions of these closing flaps, and
the portion of the closing ?ap secured to the face panels
which the pouring spout carton is formed.
With reference ?rst to FIGURE 7 of the drawings,
the pouring spout A carton includes a face panel 10, a
side wall panel 11, a face panel 12, and a side wall panel
13, the panels being hingedly connected along fold lines
14», 1'5, and ‘16. A glue ?ap 17 is hingedly connected to
are diagonally folded or creased so that the end closure
can be made. One of the dii?culties with such a struc
the face panel 11} along a fold line 19.
to the face panels are usually cut away so that these
flap 29 in order to provide an effective closure, tear or
web corners are formed between the side wall closing ?ap
Conventional bottom closing ?aps 20', 21, 22 and 23
are foldably connected to the lower edges of the panels
ture lies in the provision of a. tight closure, and another
10, \11, ‘12, and 13 along a fold line 24. Closing ?aps 25,
lies in the difficulty normally experienced in reclosing the
26, 27, and ‘29 are foldably connected along the upper
spout. It is an object of the present invention to provide
a ‘carton having a pouring spout of the general type de 25 edges of the panels 10, '11, 12, and 13 along a ‘fold line
343. The glue ?ap 17 also preferably includes a short
scribed which provides a tight closure when originally
extension 31 which is hinged to the upper edge of the
sealed and which may be readily reclosed between uses.
glue ?ap along an extension of the fold line 30. Obvi
In order to prevent the build up of layers of paperboard
ously, the glue ?ap 17 and extension 31 are designed to be
in the diagonally creased portions of the spout, the por
adhered to a surface of the side wall 13 and its closing
tions of the ?aps which are cut from the ?aps connected
diagonally folded portions extend no longer than one
29 and the face panels 10 and 12. This is accomplished
half the width of the closing ?ap secured to the end wall.
However, when sealing pressure is applied to hold the 35 by terminating the slit 32 between the closing ?aps 27 and
29 a short distance short of the fold line 39, and employ
top closure closed, these diagonally folded portions are
ing a cut score line 32 from the inner end of the slit 32 to
free to fold down into the interior of the carton, and do
the fold line 30. The slit 3‘!- between the glue ?ap exten
not form a ?rm support, often resulting in an improper
sion 31 and the closing ?ap 25 is also terminated a similar
seal in the top closure. In the present invention, one of
the diagonally folded portions includes a short project
ing portion which is sandwiched between the gusset panels
of the other diagonally folded portion. As a result, in
ward pressure is strongly resisted and an effective seal
can be produced.
A further feature of the present invention resides in
the provision of a pouring spout closure in which one of
distance from the fold line 30, and a cut score line 35 con
nects the end of the slit 34 to the fold line. As is indi
cated in FIGURE 6 of the drawings, when the closing
?ap 29 is folded inwardly in carton closing position, and
the ?aps 25 and 27 are folded outwardly, triangular webs
36 are torn from the inner surfaces of the flaps 25 and 27
as shown in FIGURE 6.
_The side wall closing ?ap 26 is connected to end por
tions 37 and 39 of the face panel closing ?aps 25 and “27.
with a projecting lip or ?ange which may be secured in
The end portion 37 of the closing ?ap 25 is separated
overlying relation to the portions of the closing ?aps
from the main portion thereof by a cut line 40 which
forming the pouring spout. When this ?ange or lip is
extends from the outer edge of the closing ?ap to a point
sealed, a tight closure is produced. The projecting lip
spaced from the fold line 36’, the out line being at right
or ?ange is connected to the closing ?ap to which it is at
angles to the fold line 3%. A diagonal cut crease line 41
tached along a weakened line of separation so that this
extends from the end of the cut lie 40 to the fold line
lip may be removed or torn away when the carton is 55 30, the cut score line 41 angling toward the side wall
panel 11. The out line 40 is spaced from the fold line
14- a distance substantially equal to the length of the
An added feature of the present invention resides in
the formation of a projecting tongue which remains at
closing flaps so that the area from which the end portion
tached to a closing ?ap secured to a face panel and over
37 is formed is substantially square. A perforated line
lying the portion of the pouring spout which is hinged to 60 42 extends most of the way across the closing ?ap 27,
the carton side wall. This tongue is of just sufficient
terminating in spaced relation to the fold line 60. A
length to permit the pouring spout to be opened or re
diagonal cut score line 43‘ extends from the end of the
closed by ?exing this tongue, permitting the pouring
perforated line 42 to the fold line 39, the cut score line
angling toward the side wall panel 11. The perforated
spout to be effectively reclosed.
These and other objects and novel features of the pres 65 line 42 is interrupted by a U-shaped cut line 44 which
provides a projecting tongue 45 on the end of the main
ent invention will be more clearly and fully set forth in
portion of the closing ?ap 27. A ?ange or ear 46 is con
the following speci?cation and claims:
nected to the main portion 47 of the closing flap 27, the
In the drawings forming a part of the speci?cation;
end of the ear as being de?ned by a out line 49 which
FIGURE 1 is a perspective view of the pouring spout
corner of the carton showing the pouring spout in sealed 70 extends for some distance generally parallel to the per
forated line 42 and then curves toward the inner end of
the perforated line 4.2 as indicated at 50 to terminate at
FIGURE 2 is a view similar to FIGURE 1 showing
the closing ?aps connected to a face panel is provided
the juncture between the perforated line 42 and the cut
score line 43.
until the end of the ?ap 26 moves past the tongue 45,
and the flap is held closed by the tongue. Upon reclos
ing, the pouring spout structure overlies the triangular
The end portion of the closing ?ap 27 which is closest
to the closing ?ap 26 is divided into two portions by a
diagonal fold line 51 which emanates from the juncture
areas de?ned by the cut score lines 41 and 4'2, and this
permits the closing ?ap 26 to ?ex downwardly beneath the
between the fold lines '15 and 30. The portion 52 of the
end section 39 which is connected to the closing ?ap 26
along the fold line 15
of a width substantially equal
to one-half the width of the side wall 11 while the sec
tongue 45.
In accordance with the patent statutes, I have described
the principles of construction and operation of my im
pro 'e'ment in pouring spout carton, and while I have
tion 53 of the 'end portion 39 which is foldably connected 10 endeavored to set forth the best embodiment thereof, I
to the face panel =12 along the ‘fold line 30 is of a length
desire to have it understood that changes may be made
from the fold line 30 substantially equal to one-half the
within the scope of the following claims without depart
width of the side wall =11. Accordingly, the sections 52
ing from the spirit of my invention.
and 53 may fold along the fold line 51 into overlying
I claim:
relation when the carton is closed.
1. A poor spout carton including,
The end ‘section 37 is also divided by a diagonal fold
a rectangular tubular structure including parallel face
line 54 into a portion 55 connected along the fold line
panels and parallel side panels,
14 to the closing ?ap 26, and a portion 56 which is fold
?aps hinged to said panels at an end thereof,
ably connected along the fold line 39 to the face panel vl0.
the ?ap secured to one side panel being hingedly con
The portion 56 is of a length substantially one-half the
nected to end portions of the ?aps on the face panels,
length of the closing ?aps (or one-half the width, of the
the end portions of the flaps on the face panels being
side wall 11). The upper portion 55 extends beyond the
con?ned within a generally square area and separated
end of the fold line 54 to provide a projecting tongue 57
from the remainder of the ?aps on the face panels,
which is an important part of the present invention, and
said end portions including diagonal fold lines dividing‘
which serves a purpose which will be later described.
the end portions into two gusset ?aps three of which
After the carton A has been glued at the manufac
terminate short of a central plane parallel to, and
turer’s joint into tubular form, the bottom closing ?aps
are closed in the conventional manner, and the cartons
are ?lled. Pressure is applied against the end portions
37 and39 of the face panel closing ?aps 25 and 727 to 30
fold these portions inwardly along the diagonal fold lines
"34 and ‘51'as the side wall closing ?ap 26 is folded down.
The side wall closing ?ap 29' is likewise folded down
wardly toward the position shown in FIGURE 6, while
the main portions of the closing ?aps 25 and 27 are
folded outwardly as also shown in this ?gure. Adhesive
is applied to the proper ?ap surfaces, and the major por
tions of the flaps 25 and 27 r are folded inwardly into su
perposed relation, the ?ap 27 being uppermost. The
?ange 46 is folded to overlie the end portion of the ?ap 40
26 and is adhered thereto.
spout are interleaved together to resist downward pressure
on the, closing ?ap 26.: FIGURE 4 clearly shows the so
26, ‘the end of this ?ange or ear is left unattached so
panels and parallel side panels,
?aps hingedly connected to an end of said panels,
‘the ?aps hingedly connected to said face panels being
divided by cut lines extending from the end thereof
to the line of hinge connecting these ?aps to the face
panels to form main ?ap portions and end ?ap por
the main ?ap portions and one side panel ?ap being
to the other side panel flap along extensions of the
lines of fold connecting said other side panel to said
face panels,
sides of the diagonally folded portionsof the pouring
Preferably, in gluing the ?ange or ear 45 to the ?ap
2. A pour spout carton including,
a rectangular tubular structure including parallel face
the said end ?ap portions being hingedly connected 7
tion 55 is sandwiched between the diagonally folded sec
tions 52 and 53 of the end. portion 39 of the closing
?ap 27. As a result of this arrangement, the opposite
spout corner of the carton appears as indicated in FIG
across said plane and sandwiched between the gusset
?aps on the other side of the car-ton.
secured in face contact,
During the downward folding of the side wall closing
?ap 26, the projecting tongue 57 on the closing ?ap sec
manner in‘ which the projection 57 folds between the
gusset sections 52 and ‘53. When closed, the pouring
midway between, said face panels,
the fourth gusset ?ap including a projection extending
the end ?ap portions being divided into pairs of gusset
?aps by diagonal lines of fold extending thereacross
‘from the junctures of the fold lines connecting the
?aps to their respective panels and the fold lines .
connecting said other side panel to said face panels,
the gusset ?aps of one end ?ap portion being con?ned '
within an area to one side of a plane midway be
tween, and parallel to, said face panels, and
one of the gusset ?aps of the other end ?ap portion
including a projection sandwiched between the gusset
?aps of said one end ?ap port-ion.
that the ?ange may be grasped by the ?ngers or may
‘be raised by the insertion of a knife blade between this
3. The structure of claim 2 and including an extension 7
?ange and the flap 26. As a result, this ?ange may be
on the outermost of said main ?ap portions overlying,
lifted and torn off, the pouring spout corner of the carton 60, and secured to, said flap on said other side wall.
then appearing as indicated in FIGURE 2 of the draw
. 4. The structure of ‘claim 3 and in which said extension
ings. As will be noted, the angular portions 41 and
is connected to said outermost main flap portion along a
43 form triangular areas overlying the corners of the
weakened line of separation extending generally along
?ap 26. With the carton in the position illustrated in
the end of said ?ap on said other side wall.
5. The structure of claim 2 and including an car on
FIGURE 2, the pouring spout may be opened up into' 65
the outermost of said main ?ap portions overlying the end
the form illustrated in FIGURE 3 by pulling upwardly .
extremity of the ?ap on said other side wall.
on the side edges of the ?ap 26 along the fold lines 14
. and 15 connecting the ?ap 26 to ‘the end portions 37
and 39. of the closing ?aps 25 and 27. During this opera
tion, the short tongue 45 is temporarily ?exed to permit
this operation. After the pouring spout has been used
to dispense the carton contents, the carton is refolded,
‘FIGURE 4 of the drawings showing the carton in partially
reclosed position. The closing operation is continued
'6. The structure of claim 5 and in which the fourth’
gusset ?ap is hinged- to the upper edge of one edge of
the ?ap hinged to said other side wall.
References (?tted in the ?le of this patent '
Powell ______________ __ Mar. 4, 1941
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