15 frank c. mello - 5083700 - triangular cross-section package

United States Patent [t9l
Mello et al.
[54] TRIANGULAR CROSS-SECfiON PACKAGE
[75] Inventors: Frank C. Mello; Jan Gullett, both of
Zeeland, Mich.
[73] Assignee: Bil Mar Foods, Inc., Zeeland, Mich.
[21] Appl. No.: 538,755
[22) Filed: Jun. 15, 1990
[51) Int. CI.s ....................... B65D 25/54; B65D 30/28
lllllililllililliil!lii~II~IMI
US005083700A
[It] Patent Number: 5,083,700
[45] Date of Patent: Jan.28, 1992
3,690,523 9/1972 Link .................................... 206/806
4,243,171 1/1981 Prin ................................ 229/117.01
4,402,452 9/1983 Kupersmit ...................... 229/117.01
4,638,912 1/1987 Graf ...................................... 383/89
FOREIGN PATENT DOCUMENTS
0333759 12/1958 Switzerland ........................ 229/108
0504311 4/1939 United Kingdom .................. 383/84
1085610 10/1967 United Kingdom ................ 229/115
Primary Examiner-Jimmy G. Foster
[52] u.s. Cl..................................... 229/115; 206/806;
229/162; 383/120
· Attorney, Agent, or Firm-Allegretti & Witcoff, Ltd.
[58] Field of Search ............................. 206/45.31, 806;
229/106, 108, 108.1, 115, 117.Dl, 162; 383/84,
. 85, 88, 89, 120
[56] References Cited
U.S. PATENT DOCUMENTS
1,759,613 5/1930 Greene ................................ 229/108
2,177,972 10/1939 Altheimer ........................... 383/120
2,831,624 4/1958 Lever .................................. 383/120
3,144,931 8/1964 Long ................................... 383/120
3,166,235 1/1965 Schroeder ........................... 229/106
3,308,996 3/1967 Beck .................................... 206/621
3,312,337 4/1967 Martin ................................... 383/89
28
18C
'36 32
[57) ABSTRACf
The improved display package of the present invention
has a substantially triangular shape in longitudinal
cross-section. The package is formed from substantially
rectangular front and matching back panels. A pair of
side panels are attached to the front and back panels.
Each of the side panels is also rectangular in shape in
the unfolded state, but includes an inwardly disposed
triangular subpanel when folded along triangular-
shaped fold lines.

''
24 Claims, 2 Drawing Sheets
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U.S. Patent Jan. 28, 1992 Sheet 1 of 2 5,083,700
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U.S. Patent Jan. 28, 1992 Sheet 2 of 2 5,083,700
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5,083,700
1
TRIANGULAR CROSS-SECfiON PACKAGE
BACKGROUND OF THE INVENTION
2
The above features may be more readily understood
upon review of the following brief description of the
drawing, detailed description of preferred embodi-
ments, appended claims, and accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGThe present invention relates to packaging materials, 5
and more particularly to an improved triangular cross-
section package, such as may be useful for the packag- The ~prov~d t~ang~lar c~oss-section p.ackage o~the
ing of small articles and/or comestibles, more particu- pres~nt m~ent1on IS depicted m the followmg drawmgs,
larly including packets of sliced prepared meat prod- and m which:
ucts inter alia. 10 FIG. 1 is a front perspective view of the improved
I~ the prior art, new and different means for display- t~angular cros.s-section package of. the .present inven-
ing small articles and comestibles have been desirable. tion, and showmg the front panel With diSplay aperture
Ideally, such packaging should have a display aperture ~d hangin~ aperture therein, ~d furthe~ sho~g the
for vie~ing the contents. Also, such packaging should
15
side p~el m ~he folded c~nd1t10n an.d mcludmg the
be readily stackable, and hangable upon a pe·g or from substantially ~nangular and mw~~ly disposed end sub-
.other hanging means. Yet further, such packaging panel, wh~n m such folded c?nd1t10n; . .
should have a minimum of wasted volume, and should FIG. 2 IS an enlarged left s1de end-on v1ew, showmg
be readily susceptible for containing an inner lining of the fold lines which form the substantially triangular
other packaging material, such as a polymeric sheet or shape and inwardly disposed end subpanel upon fold-
other material pouch, which may be sealed or unsealed 20 ing, and also showing the folded over top closure panel;
in various embodiments. FIG. 3 is an enlarged front view of the improved
In addition to the above features, packaging for small triangular cross-section packaging of the present inven-
articles and/or comestibles should be of such a design tion, showing the substantially rectangular front panel
that it can be readily and not expensively produced on 25 with displ~y aperture and hanging aperture ~herein~
presently existing equipment and with materials which FIG. 4Is an enlarged transverse cross-sectional view
are well known to those of ordinary skill in the packag- taken along line 4-4 of FIG. 3, and showing the in-
ing arts. wardly disposed end triangular shape subpanel on each
Such packaging also should be readily and not expen- end of the package, and further showing below such
sively assemblable by available machinery and/or by 30
subpanel and extending towards the center of the bot-
workers of ordinary skill in the package assembly arts. tom of the package a pair of side closure panels which
Yet additional desirable features of such packaging are disposed and rest upon a bottom closure panel;
include the capacity to provide from fibrous or other FIG. 5 is an enlarged longitudinal cross-sectional
material a package which provides a certain degree of view taken along line 5-5 of FIG. 3, and showing at
crush resistance, at least in the lateral dimension, and 35 the bottom thereof the folded over and engaging bot-
especially where the contents thereof may be permissi- tom closure panels, and looking towards the inside sur-
bly compressible in the front to back dimension, such as face of the right side of the package showing the right
for example in stacking or in hanging. side substantially triangular shaped inwardly disposed
In view of the above desirable proposed features end subpanel formed by the fold lines of the right side
and/or advantages, and in consideration of the defects, 40 panel of such package;
difficulties and deficiencies with certain of the prior art FIG. 6 is a reduced size folded out view of a blank
packaging materials presently available for such small formed from a single sheet ofmaterial, and showing the
articles and/or comestibles, it is a material object of the various connected panels, tabs, closure means and fold
improved triangular cross-section package of the pres- lines of the improved triangular cross-section package
ent invention to alleviate materially those defects, difli- 45 of the present invention in one preferred embodiment;
culties and deficiencies, and to provide the above and FIG. 7 is a perspective view ofan embodiment ofthe
other desirable features and advantages. improved triangular cross-section packaging similar to
SUMMARY OF THE INVENTION
that shown in the blank of FIG. 6 (but, inter alia, with
a front aperture window) in a beginning stage of assem-
The improved display package of the present inven- so bly, and in particular showing a blank folded over at the
tion has a substantially triangular shape in longitudinal line between the front panel and the right side end
cross-section. The package is formed from substantially panel, with such right side end panel and the attached
rectangular front and matching back panels. A pair of back panel being folded underneath;
side panels are attached to the front and back panels. FIG. 8 depicts a subsequent stage in the assembly of
Each of the side panels is also rectangular in shape iit 55 the improved triangular cross-section package of the
the unfolded state, and has a longitudinal dimension present invention, as shown in FIG. 7, and showing the
which substantially corresponds to that ofthe front and sides of the packaged formed into a box by means of
back panels. attachment of the side closure panel to the interior sur-
Each of the rectangular side panels includes fold face of the rear panel, and further showing the bottom
lines, which may be formed by lines of reduced 60 closure elements of the box being folded as depicted at
strength, which fold lines are disposed in a substantially arrows A-D; and
triangular shape on the side panels. The fold lines form FIG. 9 is a perspective view depicting the back of the
a substantially triangular shaped and inwardly disposed improved triangular cross-section package of the pres-
end subpanel when in the folded condition. The result- ent invention, as shown in FIGS. 7 and 8, and showing
ing shape of the package is that of a pouch, but which 65 the back panel being urged into contact with the top
may be formed from a single sheet of fibrous or other portion of the front panel, and further showing the
material, such as paper or polymeric sheet material, in folding over of the top closure panel into contact with
some embodiments. the exterior surface of the panel for securement thereto.

3
5,083,700
4
DETAILED DESCRIPTION OF PREFERRED
EMBODIMENTS
anism which is enclosed on a side portion of one of the
front and back panels and the side panels, and the adja-
cent panel for forming a package which is closed on the
The improved triangular cross-section package ofthe sides thereof. These and other side closure mechanisms
present invention comprises a package which has a 5 of the present invention may preferably comprise a side
substantially triangular longitudinal cross-section, and closure panel which is connected to one ofthe front and
which is substantially triangular when viewed from an back panels and to the side of the adjacent panel when
end-on perspective thereof. The improved triangular the package is in the folded format. The side closure
cross-section package -or the present invention includes panel may be integrally formed with and separated by a
a substantially rectangular front panel and a substan- 10 fold line from the panel to which it is attached. The side
tially rectangular back panel which has substantially the closure panel is connected to the interior surface of the
same dimensions as those ofthe rectangular front panel. adjacent panel in preferred embodiments, although it
A pair of side panels are joined to the front panel and may be connected to the exterior surface ofthe adjacent
the back panel. The side panels are substantially rectan- panel in other embodiments. Such interior surface in
gular in shape in the unfolded condition. Each of the 15 some preferred embodiments may be the interior sur-
side panels has a top and a bottom. The rectangular face of the front or the back panel in order that the side
longitudinal dimension ofthe side panels corresponds to closure panel does not interfere with the triangularly
the longitudinal dimension of the front panel and the disposed fold lines on the side panels.
back panel. A product display window in the form an aperture
The rectangular side panels include fold lines 20 may be preferably disposed in one or more panels ofthe
thereon. The fold lines are disposed in a substantially present invention, such as for example the front panel in
triangular shape to form a substantially triangular shape certain preferred embodiments.
subpanel, which is inwardly disposed towards the cen- A hanging mechanism is disposed adjacent the top of
ter of the package in the folded condition. the package for hanging the package. This mechanism
The apex of the fold lines is disposed closely adjacent 25 may in preferred embodiments comprise a hanging ap-
to the top of the side panels of the package. Such fold erture which may preferably extend through both the
lines also in some preferred embodiments terminate a front and back panels, such as for use in hanging on a
substantial distance above the bottom ofthe side panels. peg board.
In these embodiments, the triangular shaped package The width of the side panels in preferred embodi-
has lateral sides which cause the triangular shape to 30 ments is preferably less than the width of the front and
become slightly curved, and to cause the front panel back panels, in order to facilitate the pouch-like shape
and the back panel to bulge slightly outwardly, such as of the improved triangular cross-section package of the
for example to form the pouch-like shape of the pack- present invention.
age. The fold lines as described hereinabove may com-
In preferred embodiments, a top closure mechanism 35 prise lines of reduced dimensional strength, which may
is disposed on either ofthe front panel or the back panel be selected with regard to the material from which the
near the top for folding over and attachment to the side panels have been formed, whether fibrous (such as
, ·other ofthefront or back panel. This top closure mech- for example cardboard), corrugated, polymeric sheet
anism may preferably comprise a panel, and which material or otherwise. Scorelines may be useful with
panel may in some preferred embodiments extend sub- 40 certain materials, perforations suitable with other mate-
stantially across the transverse dimension of the front rials, etc., each to be selected by those of ordinary skill
and/or back panel. These and other top closure means in the art accordingly to widely known principles.
in preferred embodiments upon folding over are con- Of course, the improved triangular cross-section
nected to a s1,1rface, and preferably the exterior surface packaging of the present invention may be formed as a
of the other front and back panels. 45 blank which has been integrally stamped from a single
In preferred embodiments, the bottom closure mech- sheet ofmaterial, with all ofthe panels described herein-
anism is disposed substantially at the bottom of the above integrally formed thereon and separated from
package closing the package bottom. In preferred em- each other, where appropriate, by a fold and other line.
bodiments, the bottom closure mechanism comprises at Of course, in other embodiments the improved triangu-
least one panel which is disposed substantially at the 50 lar cross-section package of the present invention may
bottom of the package and extends between the front be formed from a plurality of such blanks connected
and back panels of the package. Such bottom closure together by techniques known to those ofordinary skill
means in preferred embodiments comprises a pair of in the art, including supplemental tabs, fitting into slots,
primary bottom closure panels which are integrally adhesives, and other such well known mechanisms.
formed with and separated by a fold line from the front 55 Referring now to the drawing, FIGS. 1-5 show the
and back panels of the package. These and other pre- improved triangular cross-section package generally 10
ferred bottom closure means may further comprise a of the present invention in its folded format and FIGS.
pair of side closure panels which may also be integrally 6-9 show such package 10 at various stages in the fold-
formed with and separated by a fold line from each of ing thereof. Package 10 is substantially triangular when
the side panels. In such embodiments the primary bot- 60 viewed from an end-on perspective thereof, as shown in
tom closure panels and the side closure panels are FIGS. 1, 2 and 5. The improved triangular cross-section
folded substantially normal respective to the front and package ofthe present invention includes a substantially
back panels and to the side panels. At least one of the rectangular front panel 12 and a substantially rectangu-
primary bottom closure panels extends substantially the lar back panel 14 which has substantially the same di-
entire distance between the front and back panels in 65 mensions as those of rectangular front panel 12.
some embodiments. A pair of side panels 16,18 comprising left side panel
The improved triangular cross-section package ofthe 16 and right side panel 18 are joined to front panel 12
present invention may also include a side closure mech- and back panel 14. Side panels 16,18 are substantially

5
5,083,700
6
rectangular in shape ill the unfolded condition, as shown as connected to interior surface 44 of rear panel
shown in FIGS. 6, 7 and 8. Each ofside panels 16,18 has 14 in preferred embodiments, although it may be con-
a top 16a, 18a and a bottom 16b,18b. The rectangular nected to an exterior surface glue line 45 in other em-
longitudinal dimension of the side panels 16,18 corre- bodiments.
sponds to the longitudinal dimension of front panel 12 5 A product display window or aperture 46 is disposed
and back panel 14, as shown on FIG. 6. Rectangular in front panel12.
side panels 16,18 include fold lines 16c,18c thereon. A hanging mechanism is disposed at the top 26 of
Fold lines 16c,18c are disposed in a substantially triang- package 10 for hanging the package, and hanging aper-
ular shape to form respectively substantially triangular tures 46a,46b which may preferably extend through
shaped subpanels 19,21; each of which is inwardly dis- 10 front and back panels 12,14, such as for use in hanging
posed towards the center of the package in the folded on a peg board, are provided therein.
condition, as shown in FIGS. 2 and 5. The width of side panels 16,18 is shown as being less
Each apex 16d,18d of fold lines 16,18 is disposed than the width of front and back panels 12,14, in order
closely adjacent to the respective tops 16a,18a of side to facilitate the pouch-like shape of the improved tri-
panels 16,18 of package 10. Such fold lines 16c,18c also 15 angular cross-section package 10 of the present inven-
in some preferred embodiments terminate a substantial tion.
distance above respective bottom 16b,18b ofside panels Improved triangular cross-section package 10 of the
16,18. In these embodiments, triangular shaped package present invention may be formed from a blank generally
10 has lateral sides 22,24 which cause the triangular 48, as shown in FIG. 6. Such blank 48 has been inte-
shape to become slightly curved, and to cause front 20 grally stamped from a single sheet of material, with all
panel 12 and back panel 14 to bulge slightly outwardly of the various panels described hereinabove integrally
as shown in FIGS. 1, 2 and 5, such as for example to formed thereon and separated from each other, where
form the pouch-like shape of package 10. appropriate, by a fold or other line, as depicted. Of
In preferred embodiments, a top closure mechanism course, in other embodiments the improved triangular
is disposed on either of front panel 12 or back panel 14 25 cross-section package 10 of the present invention may
near top 26 of package 10 for folding over and attach- be formed from a plurality of such blanks connected
ment to the other of front 12 or back panel 14. Such . together by techniques known to those of ordinary skill
closure mechanism may preferably comprise a top clo- in the art, including supplemental tabs, fitting into slots,
sure panel 28, and which may in some preferred em- adhesives, and other such well known mechanisms.
bodiments extend substantially across the transverse 30 FIGS. 6, 7, 8, and 9 depict the various stages of as-
dimension of front panel 12 and/or back panel 14, as sembly of embodiments of package 10. Beginning with
shown. These and other top closure means in preferred a flat blank, such as blank 48 as shown in FIG. 6, the
embodiments upon folding over are connected to a blank 48 is folded generally in half longitudinally, such
surface, and preferably the exterior surface 30 of back as a along fold line 12a as shown in FIG. 7, and side
panel 14. 35 closure panel42 is attached to glue line 45, or other glue
In preferred embodiments, the bottom closure mech- line depending on the positioning ofclosure panel 42, to
anism as depicted in FIGS. 4, 6, 7 and 8 is disposed form the lateral sides of the package 10. Next, the bot-
substantially at the bottom 32 of package 10. In pre- tom of the package is formed by folding up respectively
ferred embodiments, the bottom closure mechanism bottom panels 40, 38, 36 and 34 as shown respectively
comprises a pair of primary bottom closure panels 34,36 40 by Arrows A-D in FIG. 8. Finally, triangular shaped
which are disposed substantially at bottom 32 of pack- fold lines 16c, and 16d are folded to dispose triangular
age 10 and extend between front and back panels 12,14 subpanels 19,21 inwardly, as shown at FIGS. 1, 2, 4 and
ofpackage 10. Primary bottom closure panels 34,36 are 5, by urging the top 30 of rear panel 14 toward the top
integrally formed with and separated by respective fold 31 of front panel 12 (Arrow E). Top closure panel 28 is
lines 34a,36a from front and back panels 34,36 of pack- 45 then folded over top 30 of rear panel 14 (Arrows F and
age 10, as shown in FIG. 6. These and other preferred G) to complete the assembly of package 10.
bottom closure means may further comprise a pair of The basic and novel characteristics of the improved
side closure panels 38,40 which may also be integrally methods and apparatus of the present invention will be
formed with and separated by respective fold lines readily understood from the foregoing disclosure by
38a,40a from each of side panels 16,18. In such embodi- 50 those skilled in the art. It will become readily apparent
ments, primary l:lottom closure panels 34,36 and side that various changes and modifications may be made in
closure panels 38,40 are folded substantially normal the form, construction and arrangement of the im-
respective to front and back panels 12,14 and to side proved apparatus of the present invention, and in the
panels 16,18. As shown, primary bottom closure panels steps of the inventive methods hereof, which various
34,36 extend the entire distance between front and back 55 respective inventions are as set forth hereinabove with-
panels 12,14. out departing from the spirit and scope of such inven-
Improved triangular cross-section package 10 of the tions. Accordingly, the preferred and alternative em-
present invention may also include a side closure mech- bodiments of the present invention set forth herein-
anism as shown in FIGS. 1, 6, 7 and 8. Such side closure above are not intended to limit such spirit and scope in
mechanism is attached at a side portion of one of front 60 any way.
and back panels 12,14 and side panels 16,18, and the What is claimed is:
adjacent panel for forming a package which is closed on 1. An improved display package having a substan-
the sides thereof. As shown, the side closure mechanism tially triangular end-on shape, said display package
of the present invention may preferably comprise side comprising:
closure panel 42 which as integrally formed with and 65 a substantially rectangular front panel and a matching
separated by a fold line 42a from side panel16. FIGS. 6 substantially rectangular back panel having sub-
and 7-9 show embodiments with different positionings stantially the same dimensions as those of said rect-
of side closure panel 42. The side closure panel 42 is angular front panel;

7
5,083,700
8
a pair of side panels which are substantially rectangu- bottom closure panels integrally formed with and sepa-
-.lar in shape in the unfolded condition, each of said rated by a fold line from said front and back panels.
side panels joined at borders to said front panel and 10. The improved display package ofclaim 9 wherein
said back panel, each said rectangular side panel said bottom closure means further comprises a pair of
having a top and a bottom, each said rectangular 5 ·side closure panels integrally formed with and separated
side panel having a longitudinal dimension substan- by a fold line from each of said side panels.
tially equal to the longitudinal dimension of said 11. The improved display package of claim 10
front panel and said back panel, each ofsaid rectan- w?er~in each ofsaid p~ary bottom closur_e panels and
ul
"d 1 h · fi. ld lin th .d sa1d side closure panels 1s folded substantially normal
g ar Sl e pane s avmg o es ereon, Sal · 1 ·d fi d b k 1 d "d "d
fi ld I
. d" d . b 'all . gu1 10 respective y to Sal ront an ac pane s an 5a1 s1 e
o m~s . 1spose m a su stant1 y tnan ~ panels.
s~ape within and spaced froi? the ~rders of Said 12. The improved display package ofclaim 9 wherein
~1de panels_to form a substantial!~ tnangular shape at least one of said primary bottom closure panels.ex-
mwardly disposed end subpanel m the folded con- tends substantially the entire distance said front and
dition, said front panel and said rear panel having 15 back panels.
respective bottom edges disposed at the base of 13. The improved display package of claim 1 further
package and respective top edges disposed at the comprising side closure means disposed on a side par-
top of the package, said front panel and said rear tion of one of said front and back panels and said side
panel sloping substantially smoothly from the re- panels and the adjacent panel for forming a package
spective bottom edges thereof upwardly into inter- 20 closed on the sides thereof.
sectingly converging relationship at the respective 14. _The. improved display package. of cl~im 13
top edges thereof. wherem Said s1de closure means _compnses a s1de clo-
2. The improved display package of claim 1 wherein sure panel_co~ected to one of Said f~ont and bac~ pan-
the apex of said fold lines disposed in a triangular shape els and said Side panel ~~ respectiVely the adjacent
· · 1 · f · · 1 25 panel when the package IS m folded format.
1s disposed close y adjacent to the top o sa1d s1de pane 15 Th · d d" 1 k f 1 · 14
of the acka e. . . e . Imi?rove !Sp ay pa_c ~ge o c rum
P . g . . . wherem Said s1de closure panel 1s mtegrally formed
_3. The ~pro~ed dis~lay p~ckage of claim 1 w~erem with and separated by a fold line from the panel to
Said fold hnes disposed m a tnangular shape termmate a which it is attached
substantial distance above ~he bot!om of said side panel, 30 16. The improv~ display package of claim 14
thereby to form a _substantial)~ tnan.gular shaped pack- wherein said side closure panel is connected to the inte-
age, the lateral s1~es of wh1ch tnan~ular shape are rior surface of the adjacent panel.
curved to cause sa1d front panel and sa1d back panel to 17. The improved display package of claim 16
bulge outwardly. wherein said interior surface is the interior surface of
4. The improved display package of claim 1 further 35 one of said front and back panels, whereby said side
comprising a top closure means disposed upon one of closure panel does not interfere with said triangular
said front panel and said back panel near the top thereof disposed fold lines on said side panels.
for folding over the other of said front and back panel 18. The improved display package of claim 1 further
for attachment thereto. comprising a product display window disposed in said
5. The improved display package of claim 4 wherein 40 front panel.
said top closure means comprises a panel which extends 19. The improved display package of claim 1 further
substantially across the transverse dimension of one of comprising hanging ~eans disposed adjacent said top of
said front and back panels. the package _for hangmg ~hereof. .
6. The improved display package of claim 4 wherein 20. _The _Improv~d display packa~e· of clrum 19
said top closure means upon folding over is connected 45 wh~rem Said hangmg m~s compnses an aperture
to the exterior surface ofthe other ofsaid front and back· which ext:nds throug~ Said front and bac~ panels. .
1 21. The Improved display package ofclrum 1 wherem
pan
7
eTs.h . d d"
1
k f
1
.
1
f•·-h the width ofsaid side panel is less then the width of said
· . ~Improve Isp ay pac ag~ 0 c rum ...... er front and back panels.
compnsmg bottom closure means d!spo~ed substantially 50 22. The improved display package ofclaim 1 wherein
at the bottom of the package for closmg the package said fold lines comprise lines of reduced strength.
bottom. . . . .. 23. The improved display package of claim 22
8. The Improved display package of clrum 7 wherem wherein said lines of reduced strength comprise score
said bottom closure means comprises at least one.panel lines.
disposed substantially at the bottom of and extending 55 24. The improved display package of claim 22
between said front and back panels. . wherein said lines of reduced strength comprise perfo-
9. The improved display package of claim 8 wherein rated lines.
said bottom closure means comprises a pair of primary * * * * *
60
65

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