U.S. patent number 3,776,374 [Application Number 05/285,343] was granted by the patent office on 1973-12-04 for anti-theft display container for magnetic tape cartridge.
This patent grant is currently assigned to Kirkhof Manufacturing Corporation. Invention is credited to Roger L. Medendorp.
United States Patent |
3,776,374 |
Medendorp |
December 4, 1973 |
ANTI-THEFT DISPLAY CONTAINER FOR MAGNETIC TAPE CARTRIDGE
Abstract
The container includes a one-piece tray and one-piece cover
vacuum-formed of a very thin transparent sheet of thermoplastic
each having side and end walls which glove together. The height and
width of the container corresponds to an eight-track magnetic tape
cartridge and the tray is partitioned into two compartments one of
which receives and holds the eight-track cartridge, the other
alternatively a four-track cartridge. The latter compartment
includes differential-pressure formed, irregularly shaped portions
in the bottom of the tray which support the four-track cartridge
above the bottom wall and in from the side walls of the tray to
compensate for the dimensional differences between a four and
eight-track cartridge. The tray and cover include intersecting
flutes of dissimilar depths greatly increasing the protection of
the packaged cartridge without decreasing absorption of shock in
directions transverse to the walls of the compartments. The cover
includes window portions for effective display of the packaged
cartridge.
Inventors: |
Medendorp; Roger L. (Grand
Rapids, MI) |
Assignee: |
Kirkhof Manufacturing
Corporation (Grand Rapids, MI)
|
Family
ID: |
23093820 |
Appl.
No.: |
05/285,343 |
Filed: |
August 31, 1972 |
Current U.S.
Class: |
206/387.11;
206/561; 220/555; 229/406; 206/807 |
Current CPC
Class: |
B65D
1/26 (20130101); Y10S 206/807 (20130101) |
Current International
Class: |
B65D
1/22 (20060101); B65D 1/26 (20060101); B65d
005/50 (); B65d 025/10 (); B65d 085/67 () |
Field of
Search: |
;206/45.14,45.34,45.31,72,65R,1R,DIG.36 ;220/31S,20,22 ;150/.5
;229/2.5 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Dixson, Jr.; William T.
Claims
The embodiments of the invention in which an exclusive property or
privilege is claimed are defined as follows.
1. An elongated container suitable for displaying one or more
magnetic tape cartridges comprising, in combination:
a one-piece transparent tray and cover differential-pressure formed
from a sheet of thermoplastic material, each of said tray and cover
having side and end walls and a bottom or top wall, one of said
tray and cover being slightly smaller dimensionally than the other
and inserted therein to form a fully enclosed container, one of
said tray and cover including means defining one or more partitions
integral therewith, said partitions forming a pair of
longitudinally spaced compartments, one of said compartments
corresponding dimensionally to a tape cartridge for receiving and
holding same, said tray and cover when positioned together forming
an elongated container substantially longer than the tape cartridge
confined therein.
2. The combination according to claim 1 wherein said one
compartment corresponds dimensionally to receive and hold an
eight-track cartridge; and the other one of said compartments
corresponds dimensionally to receive and hold a four-track tape
cartridge.
3. The combination according to claim 2 wherein the height and
width of said container corresponds to the height and width of an
eight-track tape cartridge such that when an eight-track tape
cartridge is positioned in said one compartment, it is completely
confined in said container against movement relative thereto.
4. The combination according to claim 3 wherein said other of said
compartments includes differential-pressure formed, irregularly
shaped portions formed in one of said bottom and top wall of one of
said tray or cover to form a seat means integral with one of said
tray or cover which along with one of said partitions indexes a
four-track tape cartridge within said container against movements
relative thereto.
5. The combination according to claim 1 wherein the portion of said
tray and cover intermediate said side and end walls is generally
planar and include intersecting fluted portions to increase the
resistance to bending and other deflections caused by vertical or
transverse loads or impacts.
6. The combination according to claim 5 wherein the depth of said
intersecting portions is dissimilar.
7. The combination according to claim 6 wherein said intersecting
fluted portions are of different lengths, the larger of said
portions having a depth greater than the shorter portions.
8. The combination according to claim 5 wherein said planar
portions of said cover includes a window portion for displaying the
contents of said cartridge confined within said container.
9. A plastic container adapted for packaging, protecting and
displaying a magnetic tape cartridge, said container being
substantially larger than the cartridge confined therein to inhibit
theft thereof, said container comprising in combination:
a one-piece tray and cover differential-pressure formed from a
sheet of thermoplastic material, each of said tray and cover having
a generally planar portion interconnected to side and end walls,
the planar portion of said tray forming the bottom of said
container and the planar portion of said cover forming the top of
said container, said side and end walls extending at right angles
to said planar portions, one of said tray and cover being slightly
smaller dimensionally than the other to permit the side and end
walls to fit inside each other forming said container, one of said
tray and cover including differential pressure formed means
defining one or more partitions integral therewith, said partitions
forming a first compartment selectively receiving and holding an
eight-track cartridge and a second compartment for receiving and
holding a four-track cartridge such that when either of said
cartridges are enclosed within said container, they will not move
relative to the container, the second compartment including
differential pressure formed seating and spacing means for
compensating for the dimensional variation between the eight-track
and four-track tape cartridges.
10. The combination according to claim 9 wherein the height and
width of said container corresponds to that of an eight-track tape
cartridge, and the planar portions of said tray and cover include
intersecting fluted portions vacuum-formed integrally with said
tray and cover which fluted portions increase the resistance to
bending and other deflection caused by vertical and transverse
loads or impacts.
11. The combination according to claim 10 wherein said intersecting
fluted portions are of different lengths, the longer of said
portions having a depth greater than the depth of said shorter
portions.
12. The combination according to claim 10 wherein the planar
portion of said cover includes transparent portions defining a
window aligned respectively with each compartment for displaying
the contents of the tape cartridge confined therein.
13. The combination according to claim 9 wherein said means
defining one or more petitions are formed on said tray bottom and
include a central portion extending upwardly from the bottom, the
lateral extending side of said partition facing said first
compartment forming an abutment surface with an eight-track
cartridge when positioned in said first compartment.
14. The combination according to claim 13 wherein said seating and
spacing means are likewise formed on said tray bottom and include
one or more laterally extending portions having dissimilar heights
from said bottom, said portions of lesser height forming said seat
for a four-track cartridge, said portions having a greater height
forming said spacing means.
15. The combination according to claim 14 wherein the bottom
surface of a four-track cartridge abuts against the top surface of
said portions of lesser depth when positioned in said second
compartment and the sides of said four-track cartridge abut against
the longitudinally extending vertical surfaces of said portions of
greater depth.
16. The combination according to claim 14 wherein said portions of
greater depth are positioned on each end of said laterally
extending portions to provide a lateral stop against which the
sides of the four-track cartridge abut when positioned in said
second compartment, said lateral stops indexing the four-track
cartridge between the side walls of said tray to prevent relative
lateral movement of said cartridge relative to said tray.
17. The combination according to claim 14 wherein one of said
laterally extending portions of lesser height includes a
longitudinally extending central portion terminating in a raised
portion which provides a longitudinal stop against which a
four-track cartridge abuts when positioned in said second
compartment, said longitudinal stop indexing a four-track cartridge
between one end wall of said tray to prevent longitudinal movement
of said cartridge relative to said tray.
Description
BACKGROUND OF THE INVENTION
This invention relates to an anti-theft display container for
magnetic tape cartridges and particularly a strong inexpensive
vacuum-formed thermoplastic container which includes a compartment
for displaying either a four-track or eight-track tape
cartridge.
With the advent of self-service formats in retail merchandising,
losses through theft have become a critical problem. A successful
approach which has been widely adopted for packaged goods which are
easily concealed in one's purse or pocket is to package the item in
an oversized container which is not easily concealed.
One disadvantage with the prior art containers of this type for
magnetic tape cartridges is that they do not provide a lightweight,
inexpensive container which provides sufficient protection against
normal vertical or transverse loads. Secondly, many of the
containers of the prior art can easily be broken into to remove the
cartridge therein, and hence the intended purpose of the container
can be easily avoided.
Another drawback relative to the overall cost of the container is
the labor costs in assembly of the cartridge in the container. Yet
another drawback is the overall aesthetic appearance of the
container as a point of purchase display package. Thus, there is a
need in this art for an improved container which overcomes the
disadvantages of the prior art.
SUMMARY OF THE INVENTION
In accordance with the invention, an elongated container is
comprised of a tray and cover differential-pressure formed from a
very thin thermoplastic sheet material suitable for packaging,
protecting and displaying a magnetic tape cartridge. The length of
the container is substantially longer than the cartridge although
the thickness and width preferably corresponds to that of an
eight-track cartridge. One of the tray or cover includes partition
means formed by differential pressure and which provides a pair of
longitudinally spaced compartments, each of which is adapted to
receive and hold a magnetic tape cartridge confined within said
container against movement.
In narrower aspects of the invention, one of the compartments
selectively receives and holds an eight-track-cassette cartridge
and the second compartment selectively receives and holds a
four-track cassette cartridge. The latter compartment includes
differential-pressure formed, irregularly shaped portions formed in
the walls thereof to provide support and abutments for the
four-track cartridge so as to compensate for the dimensional
variance between the eight-track and four-track cartridge.
In yet other aspects of the invention, the tray and cover include
interconnecting flutings extending longitudinally and transversely
thereto having dissimilar depths greatly increasing the protection
of the tape cartridge from vertical or transverse loads as well as
shock absorption. Preferably, the entire container is encompassed
or enveloped by a thin layer of heat shrunk thermoplastic
wrapper.
The unique container of the invention provides an effective
oversized container which discourages theft. At the same time, the
container is effective for packaging either an eight-track or
four-track tape cartridge. The straight sides and rectangular shape
of the container provide an aesthetic appearing container which has
added strength along the sides as a result of the overlap of the
added cover. Added strength and protection is also provided by the
flutations on the top and bottom of the container. Due to the thin
wall of the container, it is difficult to slit the heat-shrunk
wrapper with a person's fingernail along the edge of the top
without the sharp edge of the top cutting the finger. Therefore,
the tendency to attempt to remove the heat shrunk thermoplastic
envelope and open the container for removing the cartridge is
reduced. The one-piece construction of the tray and cover from a
differential-pressure formed sheet of plastic is substantially less
expensive to manufacture in high volume when compared to
conventional injection molding. Thus, the container of the
invention provides a cheaper and yet more effective and protective
anti-theft container for magnetic tape cartridges.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of the anit-theft display container of
the invention;
FIG. 2 is a top plan view of the tray provided by the
invention;
FIG. 3 is a cross sectional view of the tray illustrated in FIG. 2
taken along the line III--III;
FIG. 4 is a cross sectional view of the tray illustrated in FIG. 2
taken along the line IV--IV;
FIG. 5 is a top plan view of the cover provided by the
invention;
FIG. 6 is a cross sectional view of the cover illustrated in FIG. 5
taken along the line VI--VI; and
FIG. 7 is a fragmentary inverted cross sectional view of the tray
and cover with a wrapper heat shrunk about the container, the view
being enlarged significantly for purposes of illustration.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Turning now to the drawings in detail, the container 10 provided by
the invention utilizes a cover 12 which mates and overlaps a tray
14 so that the sides of the container are of double thickness for
strength. The container is oversized in the sense that it is
substantially larger than the contents for which it is designed to
package. The container of the preferred embodiment is designed for
packaging, protecting and displaying a magnetic tape cartridge of
the eight or four-track variety.
An eight-track magnetic tape cartridge measures approximately 4
.times. 5 1/2 inches while a four-track cartridge measures
approximately 2 3/4 .times. 4 1/4 inches. In both cases, if the
cartridges are displayed without a special container, they can be
easily stolen from the display shelf by concealing them in a
person's pocket or purse. The container of the invention on the
other hand is designed to package either of the four or eight-track
cartridges in a display container which will not fit in an ordinary
pocket or purse. One of the additional unique features of the
invention is to provide a container which can be alternatively
selected for packaging either the eight or four-track cartridge in
spite of their dimensional dissimilarities.
Turning now to FIGS. 2-4, the tray or bottom portion of container
10 includes a generally planar bottom wall 16 with a pair of
upstanding end walls 18, 18a and side walls 20, 20a. The end and
side walls are continuous with each other and bottom wall 16, the
entire tray being differential-pressure formed from a single sheet
of thin-walled resilient thermoplastic material. The pressure
differential may be a positive or negative (vacuum) differential.
In some cases, both types may be utilized. One method utilized is
to place a sheet of plastic on a heating plate. A die having a
configuration corresponding to that desired for the ultimate
product is then placed over the upper surface of the sheet by means
of a press. The sealing and heating surface has means to allow the
passage of air to the underside of the plastic sheet whereby a
pressure differential can be established between the opposite sides
of the plastic sheet.
The overall height and width of the container corresponds generally
to that of an eight-track tape cartridge so that it can be snuggly
received therein, the significance of which will be described
hereinafter. Longitudinally, the tray 14 is characterized by three
upstanding differential-pressure formed shoulders 22, 24 and 26
extending laterally with respect to the tray, the latter two extend
the entire width of the tray from side wall to side wall while
shoulder 22 does not. Shoulders 22, 24 and 26 are spaced
longitudinally from each other and define a pair of spaced
compartments 28 and 30. The first compartment 28 is formed by end
wall 18, side walls 20, 20a and shoulder 22 which is spaced from
and parallel to end wall 18 a distance corresponding to the length
of an eight-track tape cartridge. For strength purposes, shoulder
22 does not extend the entire width of the tray 14. The length of
shoulder 22 however is substantially related to the width so that
when an eight-track cartridge is inserted in compartment 28, it is
positively held on all four sides including the side represented by
shoulder 22. Shoulder 22 thus acts as a stop against which the
eight-track cartridge is abutted to prevent longitudinal movement
of the eight-track cartridge away from the end wall 18. The side
walls 20, 20a of course eliminate the movement of the eight-track
cartridge in the lateral direction. With cover 12 inserted over
container 14 with an eight-track cartridge contained within
compartment 28, the eight-track cartridge is confined against
movement relative to the tray or cover.
The second compartment 30 is formed by end wall 18a; vacuum formed
shoulders 24 and 26; and a vacuum formed stop 32 extending
longitudinally therefrom in a direction away from end wall 18a. In
accordance with the following description, shoulders 24, 26 and
stop 32 seat and space a four-track cartridge inwardly from side
walls 20, 20a and above the floor 16 of tray 14. This is required
in order to compensate for the dimensional dissimilarity between a
four-track cartridge which is smaller than an eight-track
cartridge.
Turning first to shoulder 26, it includes a central portion 34
(FIG. 2) vacuum formed upwardly from the bottom wall 16 an amount
equal to the difference in thickness of an eight-track and
four-track cartridge. The upper surface 36 of central vacuum formed
portion 34 forms a seat upon which the bottom of a four-track
cartridge rests when positioned in the tray. Central portion 34 is
centered with respect to the longitudinal center of tray 14 and
extends in length a distance equal to the width of a four-track
cartridge. At each end of central portion 34 is a pair of end
portions 38 and 40 which are vacuum-formed to a greater depth
relative to central portion 34 to form a pair of side supports
against which the sides of a four-track cartridge will abut. This
prevents lateral shifting of the four-track cartridge when
positioned in compartment 30.
Shoulder 24 is identical to the shoulder 26 in the sense that it
includes a central portion 34a with a seating surface 36a and
raised ends 38a and 40a. The suffix "a" is utilized to connotate
identical portions when compared with shoulder 26. Shoulder 24 is
distinguished from shoulder 26 in that it includes integral
therewith a stop 32 vacuum formed at some portions to a greater
depth than shoulder 24 at a position spaced longitudinally from end
wall 18a. With reference to FIG. 2, stop 32 includes a first
portion 42 corresponding in height with central portion 34a of
shoulder 24 having an upper surface upon which a four-track
cartridge rests. The end portion 44 of stop 32 is vacuum formed at
a greater depth so as to be raised above the first portion 42 a
distance roughly corresponding to the height of the outer ends 38,
38a, 40, and 40a of shoulders 24 and 26. This forms a stop surface
46 against which one end of the four-track cartridge is held in
abutment to confine it against longitudinal movement relative to
the tray when it is confined within compartment 30. Stop surface 46
is spaced from the inner surface of end wall 18a a distance
corresponding to the overall length of a four-track cartridge so
that when it is positioned in compartment 30 it is held in
confinement against relative movement with the tray in the same
manner that an eight-track cartridge is held in compartment 28. The
only distinction is that it is raised above floor 16 of the tray
and spaced inwardly from walls 20, 20a of the tray in accordance
with the dissimilar dimensions of the eight-track and four-track
cartridges. Again, when the cover of the invention is placed over
the tray with a four-track cartridge held therein, the four-track
cartridge is packaged within container 10 against movement in all
directions relative to the container.
Referring now to FIGS. 5 and 6, the cover 12 utilized in the
invention is essentially similar to tray 14 in that it is
vacuum-formed of a thin resilient thermoplastic sheet material and
includes a generally planar top 50 (FIG. 6) with a pair of
vertically down-turned end walls 52, 52a and side walls 54, 54a all
of which are continuous with each other and top 50. Cover 12 is
slightly larger dimensionally than tray 14 to permit the cover to
fit over the tray. The height of the cover however is preferably
equal to that of the tray so that when the cover is positioned over
the tray to form container 10, the side and end walls respectively
of the cover and tray overlap in their entirety forming sides of
the container of double thickness. This not only adds strength to
the container in resisting deflection from vertical and transverse
loads, but also the lower margin 56 (FIG. 7) of the side and ends
of cover 12 coincides with the bottom surface 58 of the tray floor
16. This is significant in discouraging removal of the particular
cartridge packaged within container 10 by puncturing the outer
wrapper 60 which is normally heat shrunk around the entire
container to seal the cover to the tray. It will be appreciated
that a most obvious way of removing wrapper 60 would be to puncture
wrapper 60 along the transition of the lower margin 56 of the side
or end walls of cover 12 by inserting a thumbnail between the sides
of cover 12 and the sides of tray 14. Due to the extremely thin
wall of the tray and cover of the invention this will generally
cause injury or discomfort to the thumb or finger utilized in
puncturing wrapper 60 to the extent that it may cut the skin
surface thereby discouraging this as a means of circumventing the
function of the container by removing the cartridge and inserting
it in the pocket or purse of a potential thief. To puncture wrapper
60 in the fashion described, the container will generally be
inverted for simplicity as shown in FIG. 7.
It will be appreciated that means other than a thumbnail or
fingernail can be utilized to puncture wrapper 60 such as a blunt
instrument, and it is indeed envisioned that this in fact will be
the case at times. However, any feature which tends to discourage
or prohibit theft is preferred over one which does not include such
discouraging features. Therefore, each and every deterrent provided
by the container of the invention is envisioned as discouraging
potential thieves to shoplift tape cartridges contained
therein.
Top 50 of cover 12 includes a pair of smooth transparent windows 56
and 58 positioned over comaprtments 28 and 30 when the cover is
positioned over the tray 14. The cover 12 is symetric in this
regard in that regardless of which way the cover is positioned over
the tray 14, windows 56 and 58 are identically positioned over
compartments 28 and 30. Windows 56 and 58 provide a positive means
for displaying either an eight-track or four-track cartridge in
that the cartridges themselves generally include printed or
photographic indicia on their outer surfaces identifying and
displaying the cartridge being sold. In addition, the window
positioned over the compartment not in use can be utilized to
display additional advertising material relating to the particular
cartridge contained in container 10 which is positioned in the
vacant compartment not being utilized. Preferably, the entire tray
and cover of the container 10 is comprised of a transparent plastic
material. However, the particular reinforcement means described
hereinafter hinders visibility through certain portions of the tray
and cover so that the utilization of a clear smooth window is
preferred.
Referring to FIG. 6, it will be noted that window 58 is formed by
slightly recessing window material 58 with respect to the remaining
portions of top 50. This is primarily intended to bring window 58
or for that matter window 56 into flush engagement with the upper
surface of the particular cartridge being displayed in the
container to eliminate any visual distortion if the plastic window
were spaced from the printed or photographic indicia on the
cartridge. The firm abutment of either window against the cartridge
also acts to more firmly seat and bias the particular cartridge
within the selected compartment 28 or 30 since the plastic of the
container is quite thin and resilient.
Cover 12 and tray 14 include a plurality of longitudinally
extending flutes 60 and laterally extending flutes 62
interconnected to flutes 60. Referring to FIGS. 2-4, the fluting of
floor 16 of tray 14 is formed so that the flutes 60 and 62 project
downwardly or outwardly with the flutes 60 forming the surfaces of
engagement of tray 14 with the surface upon which it is supported.
As illustrated in FIG. 2, the fluting is formed in segregated
portions set off by shoulders 22, 24 and 26. The longitudinal
flutes are by and large longer than the lateral flutes and are
arranged in parallel relationship. The lateral flutes 62 however
are preferably offset and interconnect the longitudinal flutes 60.
The significance of flutes 60 and 62 is to substantially increase
the overall rigidity of both floor 16 of tray 14 and top 50 of
cover 12. In addition to increasing the rigidity, the resistance of
the tray and cover to vertical and transverse loads is
substantially increased without detracting at all from the shock
absorption characteristics. Referring to FIGS. 5 and 6, the
longitudinal flutes 60 of cover 12 are interrupted by windows 56
and 58 except for the outer flutes which extend the entire length
of cover 12. Each longitudinally extending flute however is
interrupted by a plurality of longitudinally spaced separation
zones 64 having a reduced depth compared to the overall depth of
flute 60. These provide added rigidity to the cover in the
longitudinal direction.
Referring to FIGS. 3, 4 and 6, it will be appreciated that the
longitudinally extending flute portions 60 have a depth greater
than the interconnecting laterally extending flute portions 62.
This is preferred in order to reduce any tendency to create a hinge
effect at the points of connection between each longitudinal and
laterally extending flute. It will be appreciated that this
dissimilarity in depth could be opposite in the sense that the
longitudinal flutes could be less than the depth of the laterally
extending flutes although as shown in the preferred embodiment, the
longitudinal extending flutes have the greatest depth to provide a
maximum support surface engaging seat for the container whether
positioned on its top or bottom.
Having described a preferred embodiment of my invention it will be
appreciated that an extremely inexpensive vacuum-formed container
is provided which is adapted to package for shipment and display
either an eight or four-track magnetic tape cartridge. The size of
the container reduces the occurrence of theft while the particular
configuration provides an extremely strong shock absorbing
container which provides an effective device utilized at point of
purchase displays.
Although but one embodiment has been shown and described in detail,
it will be obvious to those having ordinary skill in this art that
the details of construction of this particular embodiment may be
modified in a great many ways without departing from the unique
concepts presented. It is therefore intended that the invention is
limited only by the scope of the appended claims rather than by
particular details of construction shown, except as specifically
stated in the claims.
* * * * *