вход по аккаунту


Патент USA US2407866

код для вставки
Sept. 17, 1946.
Filed Dec. 16, 1943
j 1%. 1’
12,! "fél4L1?
j i
5W7. ?wéw%,
m ' séza, @wwwe
Patented Sept. 17, 1946
Ernest , J ., Bi'skamp, San, Antonio, Tex.
Application December 16, 1943; Serial No. 514,532
2 Claims.
This- invention relates to cardboard boxes or
cartons of the folded blank, tubular type, and
(Cl. 229-17)
My improved closure comprises a. section III,
hingedly connected by means of a score line, H,
with one of' the edge walls 4', this score line
being located a substantial distance from the
ployed for the packaging of granular or ?nely
end of the box. The section II) is de?ned by per
divided, ?uent material.
forated lines I2 and I3, the former coinciding
Numerous attempts have heretofore been made
with the fold lines between the edge. wall 4, and
to provide suitable pouring, openings for such
the side walls I and 2, and the latter coinciding
cartons, but. most of these have proven unsatis
with the fold line, between the edge wall 4 and
factory, either because, having once been opened,
it was impossible to close them again, or for other 10 the. associated end‘ ?ap 8. Thus‘, the section I0
extends the full width of the edge wall 4.
practical: reasons.
Projecting from the side of the section I0, op
The object of the present invention is to pro
posite the score line I I', is a tab I4, hingedly con
vide a carton of the: above type having a closure
nected with the section In by means of a score
section constituting means formingv a pouring
line I5. This. tab I4 normally lies in. the plane
opening, such closure sections being so construct
of‘ the flap 8 and‘ isseparated therefrom by means
ed that it may be replaced and retained in closed
of an arcuate cut I6, which extends entirely
through the thickness of- the cardboard. Thus,
A further object is to provide such a closure
this tab is free at all points, except where it, joins
which may be opened and closed as often as de
sired and which will remain operative, for the 20 the section II) at the score line [5.
The blank, having been cut and scored as de
life of the carton.
scribed, is then folded to form the carton in the
A still further object is to provide closure
usual manner, the end“ flap 8 being preferably
means of the- above character which may be read
folded on the inside, as indicated in Fig. 2. It
ily formed as an integral part of the usual com
; will be understood that the outer surface of the
mercial box blank, and which entails substan
tab I4 is so treated that the cement used to se
tially no additional expense in the manufacture
cure the superposed end flaps together will not
and assembling of such blanks.
adhere to it. When it is desired to open the box
In order that the invention may be readily un
to pour out a portion of the contents, the section
derstood, reference is had to the accompanying
drawing, forming part of this speci?cation, and 30 II] is broken loose along the perforated lines I2
and I3, as by means of the thumbnail or other
in which
sharp instrument, and, the tab I4 being entirely
Fig. 1 is a View of .folded box blank embodying
free from connection with the box ‘Walls, the sec
my invention, parts being broken away.
tion II] may be swung downwardly about the
Fig. 2 is a fragmentary vertical section on an
score line I I, as shown in Figs. 2 and 3, to provide
enlarged scale through the corner portion of the
particularlyto such cartons. as are commonly em
box containing my improved closure, the closure
being illustrated in partially opened position, and
parts being shown in dotted lines.
a pouring opening.
As indicated in Fig. 2, the tab I4, after hav
ing been withdrawn from the box, may be swung
around the score line I5 into the position shown
Fig. 3 is a perspective view of the corner of the
box containing my improved closure, the closure 40 in dotted lines, and this is preferably done before
being shown in fully opened position, and
any material is poured. Thus the section III
provides a guide along which the material may
Fig. 4 is a similar view, the closure being shown
flow, as it is poured out, and the tab, when bent
as it appears after having been opened and re
as shown, does not interfere with the free ?ow
placed in closed position.
Referring to the drawing in detail, and more 45 of the material over such section.
When it is desired to close the pouring opening,
particularly first to Fig. 1 thereof, the blank com
the section It is swung back about the line II to
prises the usual panels I and 2, constituting the
its original position and is then pushed slightly
side walls of the box, and the panels 3 and 4,
inwardly beyond such position, as illustrated in
constituting the edge walls, together with outer
Fig. 4. When this is done, it will be seen that
and inner end flaps 5,. 6, ‘I and 8, adapted to be
the edges I2 of the section I ll frictionally en
folded over in superposed relation to constitute
gage the inner surfaces of the side walls I and
the end walls. The blank is also provided with
2, due to the fact that the section I0 is of the
the usual lip 9 by which the two edges of the
full width of the edge wall 4. In most cases it is
blank are secured together when the box is as
55 even probable that, owing to the fact that the
perforated lines I2 coincide with the fold lines
being separated from each other and from said
between the box walls, the section Ill, with its ~ end ?aps by fold lines, one of said edge panels
more or less ragged edges, is even slightly wider
having at one end a rectangular closure section
than the space between the inner surfaces of
de?ned on two sides by perforated lines coincid
the side walls and consequently when it is forced (II ing with the fold lines between said edge panel
between them, makes a rather tight ?t. The
and, adjacent side panels, and partially de?ned on
edges l3 of the section It), when in the position
a third side by a perforated line coinciding’ with
‘shown in Fig. 4, also frictionally engage the in
the fold line between said edge panel and ad
ner surface of the top ?ap 8.
jacent end flap, and a tab cut out of said end
It will be noted that the tab l4, having been
flap and projecting from said thirdside of said
swung to the dotted lineposition, shown in Fig.
section, and said section being connected at its
2, now projects outwardly from the section III
fourth side with said edge panel by means of a
and constitutes a handle by means of which the '
section may be manipulated, and by means of
' 21A carton having side walls, and end walls
which the closure may be readily withdrawn
from the closed position, shown in Fig. 4. More
comprising superposed inner and outer ?aps, said
side Walls being separated from each other and
over, in this closed position, the tab itself like
from. said ?aps by fold lines, one of said side
walls having adjacent its end a rectangular sec
wise tends to frictionally engage the end wall
of the box and thus aids in maintaining the clo_
sure in closed position.
- In‘ operation, the user grasps the tab Ill, when
' score line.
tion de?ned by perforated lines coinciding with
20 the fold lines between said side wall and‘ the two
adjacent side walls, and between said side wall
and said'end wall, said section being ‘hingedly
moving the closure to closed position, and the
ends of the user’s ?ngers, engaging the edge of
connected by a score line along its side remote
the end wall of the box, constitute a stop to limit
the extent to which the section I0 may be pushed
inwardly. When operated in this manner, as
intended, there is no danger of pushing the sec
tion in too far. f
from said end wall with said side wall, and said
section being provided at its opposite side with
a projecting tab cut out of the inner ?ap of ‘said
end WaILsaid tab being hingedly connected at
one edge with said section and having its other
" While in the speci?cation I have referred to
edges entirely free, and said tab originally lying
the lines l2 .and [3 as “perforated,” it will of 30 wholly within the carton and being covered by
coursebe understood that any other desired form
the outer ?ap of said end wall, whereby, when
of weakening may be employed.
said perforated lines are broken, said section
Also, while I have shown the walls 3 and 4 as
may be swung outwardly about said score line
narrower than the walls I and 2, and have re
to provide a pouring opening and may be swung
ferred to’ the walls 3 and 4 as “edge walls,” it
back into closed position, and whereby said tab
will. be understood that the invention is equally
may be swung so as to project outwardly, to con
applicable to cartons in which all of the walls
a handle by means of which said section
are of the same width. Consequently, all may
may be manipulated, the edges of said section,
‘ be designated “side walls.”
What I claim is:.
1. A blank for forming foldable boxes of the
tubular type, said blank comprising side and edge
panels and end flaps, said side and edge panels
and the tab carried thereby, when pushed slight
ly inwardly, frictionally engaging the inner sur
faces of said side and end walls and thus retain
ing said section in closed position.
Без категории
Размер файла
329 Кб
Пожаловаться на содержимое документа