U.S. patent number 3,826,420 [Application Number 05/253,998] was granted by the patent office on 1974-07-30 for self-locking tamperproof container.
This patent grant is currently assigned to Olinkraft, Inc.. Invention is credited to Robert A. Bamburg, Farris N. Duncan, Roger M. Floyd.
United States Patent |
3,826,420 |
Bamburg , et al. |
July 30, 1974 |
SELF-LOCKING TAMPERPROOF CONTAINER
Abstract
A container having unique tamperproof properties, in that, after
the container is filled, the lid of the container may be
permanently locked in place so that it may not be removed without
destroying the integrity of the container. In order to remove the
lid of the container, it must either be physically torn from the
container or cut open along a cut scoreline provided in the lid for
that purpose and for easy removal of the contents of the container.
As a result, the contents may not be tampered with by someone not
authorized access to the container without the container visibly
showing that tampering has occurred. The permanent locking of the
lid to the container is accomplished by at least one locking flap
which engages locking means formed on one of the sides of the
container.
Inventors: |
Bamburg; Robert A. (West
Monroe, LA), Duncan; Farris N. (West Monroe, LA), Floyd;
Roger M. (Monroe, LA) |
Assignee: |
Olinkraft, Inc. (West Monroe,
LA)
|
Family
ID: |
22962527 |
Appl.
No.: |
05/253,998 |
Filed: |
May 17, 1972 |
Current U.S.
Class: |
229/102; 229/143;
229/147; 229/151; 229/153; 229/178; 229/190; 229/939; 206/807 |
Current CPC
Class: |
B65D
5/22 (20130101); B65D 5/6664 (20130101); Y10S
206/807 (20130101); Y10S 229/939 (20130101) |
Current International
Class: |
B65D
5/66 (20060101); B65D 5/64 (20060101); B65D
5/20 (20060101); B65D 5/22 (20060101); B65d
005/30 (); B65d 045/00 () |
Field of
Search: |
;229/33,36,45,DIG.2 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Price; William I.
Assistant Examiner: Bernstein; Bruce H.
Attorney, Agent or Firm: Von Behren; Norvell E. Pugh; C.
Emmett Laiche; Calvin J.
Claims
Having described the invention, we claim:
1. In a paperboard container blank of the type having a bottom, a
plurality of side panels, hingedly attached to the bottom, and a
top panel, hingedly attached to one of the side panels, the
improvement comprising:
a. the top panel having formed thereon a top panel flap for folding
down over one of the sides of the container;
b. the top panel flap having formed thereon at least one locking
flap for insertion into the container;
c. the locking flap having formed thereon at least one locking tab,
said locking tab having formed thereon a contact edge; and
d. at least one of the sides having formed thereon means for
engaging the locking tab, said engaging means having formed thereon
a contact edge substantially parallel with the contact edge formed
on the locking tab, said locking tab and said engaging means
dimensioned to lie in the same plane and to abut each other at said
contact edges in an edge-on-edge relationship when folded, said
engaging means and said locking tab and their respective contact
edges co-operating to lock the locking flap within the container
and to prevent its withdrawal without destroying the container
thereby providing a container wherein the contents cannot be easily
stolen.
2. The improvement as defined in claim 1 further comprising the top
panel flap having formed thereon two locking flaps and each locking
flap having formed thereon one locking tab.
3. The improvement as defined in claim 2 further comprising the top
panel having formed therein means for removing the contents of the
container without unlocking the locking flaps, said means for
removing serving as a positive identification that the contents of
the container have been tampered with.
4. The improvement as defined in claim 1 wherein said locking flap
has formed along at least a portion of the outer edges thereof and
in proximity to said locking tab a crushed portion.
5. A self locking container blank comprising:
a. a bottom panel;
b. a plurality of side panels, hingedly attached to said bottom
panel;
c. a plurality of side panel flaps, hingedly attached to said side
panels, at least one of said side panel flaps being shorter than
the remaining side panel flaps and having formed thereon a contact
edge;
d. a top panel, hingedly attached to said bottom panel;
e. at least one top panel flap, hingedly attached to said top
panel; and
f. means, formed on said top panel flap, for locking said flap in
engagement with the shorter side of the panel flaps whenever the
blank is folded into a container, said locking means having formed
thereon a contact edge formed in substantially the same direction
as the contact edge formed on the shorter side flap, said shorter
flap and said locking means dimensioned to lie in the same plane
and to abut each other at said contact edges in an edge-to-edge
relationship when folded.
6. The container blank as defined in claim 5 further
comprising:
g. said locking means having formed thereon means for easily
inserting said locking means in engagement with the shorter side of
the panel flaps.
7. The container blank as defined in claim 6 further comprising
said insertion means comprising a crushed edge formed on at least a
portion of said locking means.
Description
BACKGROUND OF THE INVENTION
This invention relates generally to a container and more
particularly to a new and novel container in which the lid of the
container may be permanently locked in place thereby rendering the
contents of the container virtually tamperproof with a visible
indication being given if the lid of the container has been removed
by anyone other than the ultimate purchaser of the contents.
It is known in the art of packaging to provide containers which
have an assortment of flaps and other locking means designed to
hold the container in the shape of the shipping package after it
has been folded from the flat paperboard blank. Such containers are
designed for easy closing by the packer and for equally easy
opening by the purchaser of the goods carried by the shipping
container.
Such typical prior art containers for various applications are
shown in the U.S. Pat. No. 1,143,103, issued June 15, 1915 to R. T.
Cameron; the U.S. Pat. No. 2,319,018, issued May 11, 1943 to M.
Ullman; the U.S. Pat. No. 2,548,001, issued Apr. 10, 1951 to S. T.
Butterfill; the U.S. Pat. No. 2,610,782, issued Sept. 16, 1952 to
R. McReary and the U.S. Pat. No. 3,310,219, issued Mar. 21, 1967 to
J. J. Dlugopolski. All of these cited patents have various folded
flaps, end panels, and/or locking means for locking the paperboard
blank in the form of a package structure which is designed to carry
a wide variety of articles. The term "locking means" is somewhat of
a misnomer here and as used in the cited patents since the devices
used do not actually lock the package together but only "retain" it
in its packaged shape so that it can be easily opened by the
purchaser of the contents of the package. It should become apparent
from a review of these patents that the "locking means" are used
solely to retain the package in its packaged shape so that the
contents of the package will not be displaced from the package or
the package will not fall apart during transportation of the
package and the contents from the store to the home of the
purchaser. In addition it is well known that the purchaser of
consumer goods does not enjoy having to physically tear a package
apart in order to remove the contents thereof but he expects the
package to be easily opened at his convenience.
In order to insure that the package retains its shape and retains
the contents in the package during the transportation to the
consumer's home, there have been many variations attempted in the
design to the package to insure that these conditions are obtained.
One such modification in the package is shown in the U.S. Pat. No.
3,291,367, issued Dec. 13, 1966 to E. H. Carter wherein a plurality
of tabs 40 are provided on the flaps 38 to "lock" the lid or top
panel 20 on the box. The tabs 40 engage the slots 68 and 70 to give
the lid a semi-permanent "locked" position. Such a structure is
commonly used in today's marketplace for boxes designed to handle
pastries, cakes and also somewhat larger boxes are designed to
handle clothing and apparel. From a review of the patent and from a
knowledge of that the paperboard carton is deformable, it should
become apparent that the box in the cited patent may also be easily
opened by the ultimate consumer and, as such, could also be easily
opened and the contents tampered with by someone other than the
consumer.
Referring now to the U.S. Pat. No. 3,361,323, issued Jan. 2, 1968
to V. A. Adams et al there is shown an attempt to make a structure
in which parts of the structure are actually locked in place. In
the cited patent the end panel 15 or bottom of the hatbox is
permanently fastened to the carton body 11 by means of the
plurality of tabs 115 which are designed to engage in mating slots
56 formed in the bottom of the hatbox. This solution to the problem
while making the bottom of the hatbox somewhat permanently fastened
to the sides could not be used for the top of the hatbox since such
a permanent top, while rendering the contents of the hatbox
virtually tamperproof, would also require that the purchaser of the
hat exert great forces on the hatbox in order to remove either the
top or bottom of the box to get to the hat within the box.
From the above it should become apparent that many solutions have
been attempted in order to solve the problem of retaining the
contents within the container so that the purchaser of the contents
can transport the contents and the container to its ultimate
destination while still allowing the container to be easily opened.
While the before cited solutions to this problem appear to have
solved this problem, none of these references are directed to
solving the problem which resulted in the design of the applicant's
new and novel self-locking tamperproof container.
In the packaging of large quantities of food-stuffs such as shrimp,
or the like, it is quite commonplace to package the foodstuff in
packages of 3, 4 or 5 pound units for the large quantity buyer or
for later repackaging by the food store into smaller quantities
desirable for the smaller quantity buyer. When large quantities of
shrimp are packaged thusly and stored in remote warehouses, it is
commonplace for pilferage of the contents of the container or a
portion of the contents of the container to take place. With
standard prior art containers available on the market today, such
pilferage is relatively easy since all that was required in order
to steal a small quantity of shrimp, was to remove the lid of the
container and take whatever shrimp the thief desired for his
purposes. Then by simply redistributing the remaining shrimp in the
box, the theft was not readily apparent since the possibility that
the container would be reweighed at its final destination was very
slim.
SUMMARY OF THE INVENTION
In order to overcome the problems inherent in the prior art cited
containers there has been provided by the subject invention a new
and novel self-locking tamperproof container which is virtually
foolproof without leaving tell-tale traces on the container that
the contents of the container have been disturbed. This new and
novel tamperproof container has been designed by the use of new and
novel locking flaps and tabs formed on the lid of the container
with the locking tabs being designed to engage means formed on the
container thereby rendering the lid completely locked to the sides
of the container. When the lid is thusly locked it is virtually
impossible to remove it from the container without tearing the lid
and destroying the locking tabs. After the container is filled and
shipped to the ultimate consumer it may be quickly opened by means
of perforated cutlines across the top of the lid.
Accordingly it is an object of the invention to provide a new and
novel tamperproof self-locking container which prevents
unauthorized removal of the contents of the container.
Still another object of the invention is to provide a new and novel
production blank that may be folded into a self-locking pilferproof
and tamperproof container which provides visual indications when
the contents of the container have been tampered with.
Yet another object of the invention is to provide a new and novel
self-locking pilferproof and tamperproof container which prevents
unauthorized tampering with the contents while at the same time
providing means whereby the ultimate consumer of the contents may
have ready access to the interior of the package.
These and other advantages of the invention will become apparent
from a review of the drawing and from a reading of the preferred
embodiment of the invention.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a plan view of the production blank of the subject
invention prior to its being folded into the pilferproof and
tamperproof container;
FIG. 2 is a perspective view of the pilferproof and tamperproof
container of the subject invention folded and locked in
position;
FIG. 3 is a partial perspective view of the corner of the
pilferproof container showing the top panel flap prior to its
insertion between the sides of the container;
FIG. 4 is a partial side sectional view taken along line 4--4 of
FIG. 3 showing the top panel flap and the locking flap with its
associated locking tab prior to being inserted between the sides of
the container;
FIG. 5 is a side sectional view taken along line 4--4 of FIG. 3
showing the top panel flap after it has been folded down over the
side of the container and showing the locking flap and locking tab
locked in position within the container;
FIG. 6 is a side sectional view taken along line 6--6 of FIG. 5
showing the locking tab permanently locked against a side flap of
the container; and
FIG. 7 is a side sectional view taken along line 7--7 of FIG. 5
showing another view of the locking tab permanently locked in
place.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring now to the drawings in general and in particular to FIGS.
1 and 2 of the drawing there is shown the production blank 10 which
is folded by means well known in the art into the container 12
shown in FIG. 2. The blank 10 comprises a bottom panel 14 which is
hinged by means of a plurality of scorelines 16, 18, 20 and 22 to a
plurality of side panels 24, 26, 28 and 30. The side panel 26 has
formed at each end thereof, by means of the scorelines 32 and 34 a
plurality of side flaps 36 and 38. The side panel 30 also has
formed, by means of the scorelines 40 and 42, a plurality of side
flaps 44 and 46. The side flaps 44 and 46 are formed shorter than
the side flaps 36 and 38 as will be described more in detail
hereinafter.
The side panels 24 and 28 have formed thereon, by means of a pair
of scorelines 48 and 50 and 52 and 54, an interior folddown panel
56 and 58 which is designed to fold down over the side panels 24
and 28, in juxtaposition thereto, being locked to the bottom panel
14 by means of a plurality of tabs 60, 62, 64 and 66 which are
designed to be received in a plurality of openings 68, 70, 72 and
74 formed in the bottom panel 14 of the container 12.
The side panel 26 also has formed thereon, by means of the
scoreline 76 a top panel 78 which serves as the lid of the
container 12 whenever the lid is locked in place on the container
as will be described more fully hereinafter. The top panel 78 has
formed thereon, by means of the scorelines 80 and 82, a plurality
of top panel flaps 84 and 86 which are designed to be inserted
within the container 12 when the top panel lid 78 is closed over
the container.
The top panel 78 also has formed thereon, by means of the scoreline
88, a third top panel flap 90 which has formed on at least one end
thereof, by means of the scoreline 92, a locking flap 94. In the
embodiment shown in FIG. 1 the top panel flap 90 also has formed on
the other end thereof, by means of a similar scoreline 92, a second
locking flap 94. The locking flaps 94 have formed thereon, by means
of the scorelines 96 a locking tab 98 which serves as a portion of
the means for tightly locking top panel lid 78 on to the container
12 thereby rendering it pilferproof. The locking flaps 94 may be
formed with a portion of their exposed edges crushed as shown by
the shaded portion 116 of the flap 94, for the purpose which will
be described more fully hereinafter. The top panel 78, as well as
the top panel flaps 84 and 86, have formed therein a cut scoreline
100 for the purposes which will also be described more fully
hereinafter.
While the folding sequence of folding the production blank 10 into
the container 12 is well known to those versed in the art of
containers and has been omitted from the drawing for purposes of
brevity, there will now be described in brief detail how the
production blank 10 is folded into the container 12 prior to
locking the top panel lid 78 onto the container as illustrated in
FIGS. 3 - 7. In setting up the container the sides 26 and 30 are
folded upwardly with the side flaps 36, 38, 44 and 46 being folded
into position along the scorelines 16 and 20. Thereupon the sides
24 and 28 are folded upwardly and the folddown panels 56 and 58 are
folded over the side flaps 36, 38, 44 and 46 being locked into
place by means of the plurality of tabs 60, 62, 64 and 66 into the
openings 68, 70, 72 and 74 as is well known in the prior art.
Thereupon the container is partially erected and the contents of
the container may be placed on the bottom panel 14 in the
container.
After the container has been completely filled, the top panel flaps
84 and 86 are folded upwardly and the top panel 78 is pivoted about
the scoreline 76 with the top panel flaps 84 and 86 being
positioned inside the container in juxtaposition to the folddown
panels 56 and 58.
Referring now particularly to FIGS. 3 and 4 of the drawing there
will be described in detail how the top panel 78 is permanently
locked in place on the container 12 to render the container
virtually tamperproof. After the top panel 78 has been folded down
over the container 12 with the top panel flaps 84 and 86 being
inserted in the container as before mentioned, the locking tabs 98
are folded inwardly into juxtaposition with the locking flaps 94
and as shown by the dashed line 102 in FIG. 3. Thereupon the
locking flaps 94 are folded inwardly also into the position shown
in FIG. 3 prior to their being inserted and locked in place in the
container 12. As before mentioned, the side flaps 44 and 46 were
inserted in between the sides 24 and 26 and the folddown panels 56
and 58 also before mentioned the side flaps 44 and 46 are formed
somewhat shorter than the side flaps 36 and 38 and are designed to
receive the locking tab 98 whenever it is inserted between the side
24 and the folddown panel 56 and between the side 28 and the
folddown panel 58.
In order to permanently lock the top panel lid 78 to the container
12, the top panel flap 90, along with the locking flaps 94 are
rotated inwardly in the direction shown by the arrow 104 in FIG. 4
until the forward edge 106 of the locking tabs 98 contacts the edge
108 of the side flaps 44 and 46 as shown in FIG. 5 of the drawing.
The length, shown by the arrow dimension 110 of the side flaps 44
and 46 is dimensioned to be in close proximity to the length, shown
by the arrow distance 112 of the locking flaps 94 so that the
locking tabs 98 will lock tightly against the side flaps 44 and
46.
As before mentioned the folddown panels 56 and 58 were previously
folded over the side flaps 36, 38, 44 and 46 and into position to
form the sides of the container leaving a tight opening 114 into
which can be inserted the locking flaps 94 with their associated
locking tabs 98. As a result the locking tab 98 is held in its
folded position in juxtaposition to the locking flap 94 thereby
preventing its removal from the package without tearing the locking
tabs 98 along the foldline as shown by the numeral 115 in FIG. 5.
Of course if an unauthorized person desired to gain entry into the
locked package he could physically force the top panel flap 90 open
but such action would virtually destroy the locking tabs 98 by
tearing them from the locking flaps 94 at the foldline shown by the
numeral 115 thereby giving a visible indication of the tampering.
As an aid to inserting the locking flap 94 and the locking tab 98
in the opening 114 it may be desired to crush a portion of the
locking flap 94 as shown by the dotted area 116 in FIG. 1 so that
the flaps fit better in the opening 114.
Since the container 12 has now been rendered virtually unopenable
without destroying the integrity of the package and without having
to exert a large force to do so, it is also desirable to also
provide means for removing the contents of the container without
having to destroy the integrity of the package by damaging the
locking flaps. This means is provided by including in the top panel
lid 78 the cut scoreline 100 along which the purchaser of the
container may quickly run a sharp knife to allow the lid to be
opened exposing the contents of the container. If this method is
employed by the thief in the warehouse, then it becomes readily
obvious to the ultimate purchaser of the container that it has been
tampered with and he will refuse to accept the container when he
purchases it from the supplier. By the same token if the thief in
the warehouse attempted to remove the contents of the box by prying
the top panel 90 from the box the evidence of his overt action
would be the damaged locking tabs 98. If the thief were successful
in prying the top panel flap 90 from the locking means and were
successful in removing some of the contents of the box and
attempted to insert the locking flaps 94 back into position within
the opening 114, the box would still be unacceptable to the
purchaser since the locking tabs 98 would have been torn from their
position and the top panel flap 90 would be unable to be locked in
place on the container. By noticing this latter condition the
receiver of the container again would refuse to accept the
container.
From the above it can be seen that there has been provided by the
subject invention a new and novel pilfer-proof and tamperproof
container which, with the novel locking means, renders the
container virtually unopenable without giving a visual indication
that it has been opened during transportation from the packer to
the ultimate consumer. The new and novel means herein provided
allows the receiver of the package to make a quick visual
inspection of the cut and scoreline 100 along with a quick check of
the integrity of the top panel flap 90 and the locking tabs 98 to
insure that the package has not been tampered with. While the new
and novel means provided herein does not make the package
completely theftproof, for the thief can still physically steal the
entire package, it has been satisfactory in minimizing tampering
with the contents of the package from the time the package leaves
the packer until it is received at its ultimate destination.
It should be apparent that many changes may be made in the design
of the package within the spirit and scope of the invention. For
example the locking flaps 94 and the locking flaps 98 may be
incorporated on either one or both of the top panel flaps 84 and 86
with minor modifications to provide the same virtually tamperproof
package. From the above it should also be apparent that many other
changes may be made in the package in the arrangement of the parts
of the package without departing from the spirit and scope of the
invention and the invention is not to be limited to the package
shown and described as this package has been shown and described.
by way of illustration only.
* * * * *