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Патент USA US3088634

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May 7, 1963
c. M. KINGHORN El'AL
3,088,624
METAL FOIL CONTAINER
‘Filed Feb. 18, 1959
5 Sheets-Sheet 1
INVENTORS
H-G. HENRICKSON
c. M. KINGHORN
;
ATTORNEY
May 7, 1963
c. M. KINGHORN EI'AL
3,088,624
METAL FOIL CONTAINER
Filed Feb. 18, 1959
5 Sheets-Sheet 2
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INVENTORS
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H.G. HENRICKSON
CJVI. KiN HORN
BY
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ORNEY
May 7, 1963
c. M. KINGHORN ETAL
3,088,624
METAL FOIL CONTAINER
Filed Feb. 18, 1959
5 Sheets-Sheet s
INVENTOR S
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CHARLES M KINGHORN
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HENRY G. HENRICKSON
BY W
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May 7, 1963
c. M. KINGHORN ETAL
3,088,524
METAL FOIL CONTAINER
Filed Feb. 18. 1959
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INVENTORS
CHARLES M. KINGHORN
HENRY G. HENRICKSON
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ATTORNEY
May 7, 1963
c. M. KING-HORN ETAL
3,088,624
METAL FOIL CONTAINER
5 Sheets-Sheet 5
Filed Feb. 18, 1959
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Unite States
3,088,624
Patented May 7, 1963
2
1
FIGURE 13 discloses a modi?ed type of blank to that
shown in FIGURE 10 when used as a culinary article;
FIGURE 14 is a sectional view of the blank shown in
FIGURE 10 when taken along line 14~14 thereof;
FIGURE 15 is a sectional view of the blank shown in
3,088,624
METAL FGIL CGNTAINER
Charles M. Kinghorn, Wilmette, and Henry G. Henrick
son, Mount Prospect, IIL, assignors to Kaiser Aluminum
& Chemical Corporation, Oakland, Caii?, a corpora
FIGURE 13 when taken alongline V15—15 thereof;
tion of Delaware
FIGURE 16 is a side elevational view of a modi?ed
form of container as shown in FIGURES 2 and 3, wherein
Filed Feb. 18, 1959, Ser. No. 794,092.
13 Claims. (Cl. 229-454)
the blank from which the body of the container is made
is provided with penforations and a cover tab therefor;
FIGURE 17 is a View similar to FIGURE 16 wherein
the closing tab for the perforations in the container has
This invention relates to containers. More particularly,
the invention relates to metal foil containers of various
shapes which may be used in connection with the packag
ing and merchandising of a variety of products, the
been removed;
FIGURE 18 is a partial sectional view of the container
products which may be solid, semi-solid or ?uid and in 15 shown in FIGURE 16 when taken along line -18—18
thereof;
which protection against contamination and the ease with
container having an advantageous use in the packaging of
FIGURE 19 discloses a further modi?cation of the
which the container may be opened are prime considera
blank shown in FIGURE 1;
tions. This application is also a continuation-in-part ap
FIGURE 20 is a partial sectional view of the blank
plication of our application Serial No. 688,357, ?led Octo
20 shown in FIGURE 19 when taken along the line 20-20
ber 4, 1957 and now abandoned.
thereof;
'
At the present time, there are on the market a variety
FIGURE 21 is a plan view of a blank wherein the
of containers which may be used to package the afore
edges thereof have been stretched such as by ?uting so as
said products. Such containers must have several proper
to facilitate the application of end closures to the blank
ties, among which are complete moisture resistance,
.
strength to resist pressures, and good heat or cold con 25 after it has been coiled;
FIGURE 22 is a sectional view of an end of the coiled
ductivity characteristics. Finally, such containers must
fluted blank shown in FIGURE 21 prior to the applica
be easily opened, must open without causing damage to
tion of an end closure thereto; and
their contents, and must open such that contamination
FIGURE 23 is a sectional view of the end of the coiled
from handling of the exposed product is reduced to an
30 blank of FIGURE 22 at a point of overlap of certain
absolute minimum.
of the Wraps thereof and after the application of an end
Accordingly, it is the purpose of the present invention
closure thereto.
to provide unique easily opened containers which are ad
Referring now to FIGURE 1, it may be seen that the
vantageously made of metal foil as well as arrangements
blank 1, which may be formed into a preferred embodi
for readily fabricating the same.
The various ‘advantages of the invention will become 35 merit of a container body generally in the form of a plane
geometrical ?gure, in this case a parallelogram as shown
apparent when consideration is given to the following de
in FIGURE 1, has both parallel edges 3 and 4 and paral
lel ends 5 and 5'. Preferably, though not necessarily, the
tailed description of the invention in conjunction with
the attached drawings wherein:
ends 5 and 5' of the blank are cut on the bias or are cut
so as to form equal and opposite acute angles with re
FIGURE 1 is a plan view of a preferred form of blank
from which the container of the instant invention may be
fabricated;
spect to parallel side edges 3 and 4. The end edges 5' is
of container and end closures, constructed according to
the invention;
closer to the side edge 3 than to side edge 4, for purposes
also cut at one end to de?ne a small apex 6 of a triangle
FIGURE 2 is a side sectional view of a preferred type
FIGURE 3 is a side elevation of a ?lled container show
ing the outer edge of the blank in a preferred embodi
ment of the invention;
FIGURE 4 is a view of one manner in which a con
tainer embodying the basic principles of the instant in
vention may be opened, the ‘dotted lines indicating move
ment of the container;
FIGURE 5 is a perspective view of the preferred em
bodiment of the container partially opened;
FIGURE 6 is a perspective view showing the uncoiled
to be hereinafter described.
45
The apex ‘6 may be some
what rounded off if desired.
At a suitable distance a‘, :as indicated in FIGURE 1,
from the end 5 there may be provided if desired one or
more bands or spots 7 of a suitable adhesive, such as
“Pl-io?lm.” In the case of food products, the adhesive
50 should also be odor free, non-toxic and one that will satis
factorily resist oven temperatures in the neighborhood of
around 325° F. This ‘band may be disposed entirely
across the blank 1 and substantially parallel to the edge
5. The adhesive used may be plastic or semi-plastic and
walls of a container of the invention being used as a 55 it should have such a characteristic that while providing
a joint between portions of the blank in control there
support or cooking or baking utensil for the contents
thereof;
FIGURES 7 to 9 are plan views similar to FIGURE 1
showing somewhat modi?ed forms for the starting mate
rial which may be used‘ in fabricating a container in ac
cordance with the invention;
FIGURE 10 is a top plan view similar to FIGURE 1 of
a modi?ed form of container blank, wherein the blank is
ribbed or corrugated;
FIGURE 11 is a detailed sectional view through a com
pleted container made vfrom the blank shown in FIG
URE 10, and shows the manner in which the end closures
are applied to the body portion thereof;
FIGURE 12 is a perspective View of the container
formed from the blank shown in ‘FIGURE 10 in a par
tially unwrapped condition;
with it has a bonding strength ‘which is less than the tear
ing strength of the foil blank 1 ‘whereby, when the con
tainer body is unwrapped in a manner to be more fully
60 disclosed, the adhesive will break rather than cause a
tearing or rupture of the foil adjacent the areas where the
adhesive is located. In other worlds, the adhesive only
lightly secures or bonds adjacent convolutions of the
blank 1 together. The distance d at which this adhesive
band will be positioned from edge 5, whether bias or
square cut, is variable and is a function of container size
in that it is so positioned on the blank that the edge 5,
as indicated by the dotted line 1-1 of FIGURE 1, will, as
the blank :1 is coiled or wrapped, engage this ‘band of ad
hesive 7. Thus, the distance d will in all cases be a func
tion of the desired circumference of :a circle, if the con
tainer is a cylinder, or of the length of the sides, if the
3,088,624.
3
container is rectangular, square, or of any other desired
shape since all such shapes may be easily formed. In
addition, if the container is formed from a trapezoidal
type sheet as shown in FIGURE 7 or in the modi?ed
forms shown in FIGS. 8 and 9, the adhesive band '7 is
provided to engage the inner edge of the sheet at the ?rst
wrap in the manner and at a distance from the edge 0! as
described.
critioal to the ‘accomplishment of these results. In all
cases, the blank 1 is ‘formed from cold rolled temper
metal toil, preferably from .001 to .005 inch thickness.
The ‘foil is also preferably aluminum foil made from
suitable work hardenable aluminum or aluminum alloys.
Examples of such aluminum alloys are those designated
in the trade by the numbers 3003, 5083, 5086 and 11100
work hardenable aluminum alloys. This thickness of the
In forming a container, reference being made to the
blank and, of course, the length are a function of the
blank as shown in FIGURE 1 by way of example, the 10 desired strength necessary to resist internal forces as well
blank 1 is coiled or Wrapped on a suitable mandrel to
as possible external damage. By using cold rolled tem
de?ne Ia tube-like body as indicated by the dotted lines
per foil in the ranges of 1A, 1/2, 1% or full hard temper,
of FIGURE 1, the edge 5, in a preferable embodiment,
the blank 11 will be provided with the varying degrees of
bias cut, as shown, engaging and being held by the ad
?exibility required for rolling the same to form various
hesive strip 7. The remainder of the blank wall may be 15 tube-like shells, while at the same time the blank 1 will
comprised of a series of superposed tightly wound Wrap
also have the requisite self-sustaining or selfsupporting
pings or coils, coiled around the ?rst or innermost con
properties, i.e., will maintain its shape while unsupported
volution or wrapping to de?ne a container shell or body
as shown in FIGURES 1 and 6.
Also at cold rolled
with the top and bottom edges of the blank lying in com
temper, foil of the speci?ed range of thicknesses in
mon planes. The shell now formed as a series of coils 20 berently is somewhat resilient, that is, if coiled the foil
is then provided with a pair of end caps 16‘, only one
has a certain amount of spring back and thus would tend
being shown, which caps are preferably formed of sheet
to uncoil itself. It is also readily tearable along straight
metal stock. These end caps 10 also act as the principal
lines. ‘Further, the cohesion between successive layers
or primary means for holding the wrappings in a tightly
of cold rolled temper foil is practically negligible as com
coiled or immobile condition. These caps Ill are disc or 25 pared with dead soft foil or paper. iThus cold rolled tem
cup-shaped, as indicated by the dotted lines C in FIG
per foil can be said to have relatively ‘friction-free sur
URE 2, and are slipped into the cylindrical shell and are
in contact with the innermost wall thereof. As indicated,
a portion of the annular walls of the caps it) project out
faces. Cold rolled temper foil is also strong in tension
and considerably more ?exible than, for example, a paper
board of the equivalent strength characteristics.
wardly beyond the edges of the wraps of metal foil mak 30
Considering these properties of cold roller temper
ing up the cylindrical shell. It is this portion of each cap
foil, and again referring to FIGURES 4 and 5 by way of
or closure which is subsequently rolled back upon itself
example, it may be seen that when the ?rst coil or wrap
to de?ne with the edges of the convoluted blank a true
of the blank is made, the adhesive strip 7 will be con
double lock seam 8, wherein the closure edge is rolled
tacted by the edge 5 of the blank 1 as the blank is curled
under the outer bead of the closure. The edge 3 of the 35 or wound up. This edge 5 will be held in place and sealed
tube as coiled is also rolled back upon itself and caught
such that the winding or coiling of the blank into suc
between the turned back closure edge, the whole seam
cessive wraps can be completed easily. The remainder
being compressed to interlock the interengaged elements
of the blank can then be tightly formed about this ?rst
and to de?ne a leak-proof, pressure-proof and strong seam
convolution such as to preclude any movement or mo
between closure and container wall.
40 bility between adjacent convolutions and acts to lend ad
In order to facilitate the rolling back or ?anging of
ditional strength to the container body and further to
the opposed side edges 3 and 4 of the tube, these edges
protect the initial wrap.
and areas of the blank 1 adjacent these edges are advan
Finally, the outermost wrap is coiled tightly against
tageously previously stretched or elongated such as by
the shell, and at least one end closure 10 is applied as
providing the blank with ?uted or corrugated portions 45 has been described. After ?lling, the second end closure
100. These ?uted or corrugated portions create su?icient
is applied. The end closures 1i} act to seal the ends of
?exible areas of metal at and adjacent the edges 3 and 4
the coiled body end and also to prevent the inherent
whereby the necessary radial expansion of the edges can
spring back of the foil from coming into play whereby
be obtained when the edges are flanged or otherwise de
the body ill would uncoil much the same as a released coil
formed the amount required for satisfactorily applying 50 spring will do. ‘In FIGURE 1, the blank I is shown as
an end closure thereto such as an end closure 10 and
being of such a length as to form several wraps about the
while at the same time minimizing the possibility of
initial sealed convolution. The purpose of this preferred
fracture or rupture in those areas during this deforma
arrangement is to strengthen the container Wall and, fur
tion.
ther, to facilitate opening and subsequent use of the con
Thus, the end closures 10 with the double lock seams 55 tainer body or sheet as will be described. However, if
8 securely hold the wraps or coils together and, because
desired, the container wall may be comprised of a single
of the nature of the material from which the container
turn and only a one-half turn overlap, in which case the
walls are formed, are essential to assure su?icient strength
blank would be cut across the dotted line 11 of FIGURE
to the wall. It will be appreciated that one of the closures
1 or, alternatively, made initially of only such a length
10 is applied after the container is ?lled. In forming the 60 as necessary to accomplish the desired result. Despite the
double lock seam 3 between closure and container wall,
fact that there is no bonding of the various wrappings
it is essential that each and every convolution or Wrap of
of material one with respect to the other, except for the
the wound shell 1 be interlocked as described to assure a
?rst turn as shown in FIGURES l and 3, none is neces
liquid tight joint between the end closures and the con
sary. In the ?rst place, metal foil of the speci?ed temper
tainer shell or body.
65 and thickness is strong in tension and once the closure
With the closures attached in the manner disclosed in
members 10 are double locked by the joints 8 to the
(FIGURE 2, it will be apparent that the free end edge 5’
curled or wrapped body formed from the blank 1, the
of the outermost wrapping including the small apex or
foil body will eifectively resist internal pressure without
portion 6 projecting from this outermost wrapping, if the
becoming uncoiled.
blank has the bias cut ends, will be held against its next 70
When the product packaged in the instant container is
adjacent innermost wrap of said container body or shell
solid or semi-solid, such as frozen juices, refrigerated
as may be clearly seen from an inspection of FIGURE 3.
Before continuing with the description of several unique
results obtained from the novel container of the invention,
doughs, which create internal pressure within the con
tainer, and other solids, such as perhaps surgical instru
mentalities or pads, solidi?ed asphalt roo?ng or water
it is important to point out several factors which are 75 proo?ng materials, some jellies, cranberry sauce, canned
3,088,624.
5
meats and the like, the container may be opened in a
unique manner.
'For example, let it be assumed that a container em
bodying the features described above is ?lled with a
dough or jellied product. In the case of a leavened
6
tainer may be formed and opened, a brief discussion is
now in order with respect to the modi?ed forms of start
ing blanks as shown in ‘FIGURES 7 through 9, wherein
elements common to all of the sheets are given the same
reference numeral.
FIGURES 7-9 show modi?ed forms for end edges of
the starting material blanks. In each instance, the band
of adhesive is positioned a given distance from and gen
erated. In such a case, ordinary opening methods are
erally conforms to the con?guration given the edge of
not satisactory since such products tend to expand under
the in?uence of heat and when accidentally thawed create 10 the sheet, which will be adjacent the innermost wrap or
convolution of the completed container as and for the
suf?cient internal pressures whereby the container has
dough, the container generally becomes pressurized by
the dough itself. Such a container is also usually refrig
purpose described above.
In FIGURE 7, for example, only one edge 21 of a sheet
20 is bias cut and this free end edge may further be cut
case of la pressed meat or jell-ied product, such as cran
berry sauce, an opposite problem exists in that suction 15 as indicated by the dotted line 22 to de?ne a free end
edge portion or tab in the manner of tab 6 of FIGURE 1.
created in the unopened end of the container tends to
It will be appreciated too that this sheet may be rolled
hold the product in the container thereby giving rise to
from either end and, further, that end edge 23 may be
a problem of removal. In either case, the container may
been known to explode, particularly during opening
thereof, and cause violent ejection of the contents. In the
be laid on its side on ‘a ?at surface as seen in FIGURE 4
out either square or on the bias or diagonal in a manner
6 of the outermost wrap outward. Because of the offset
position of this apex ‘with respect to the edges 3 and 4, the
an end or free end edge 31 including an apron or free
20 opposite to the manner in which edge 21 is cut as indi
to effect this unique opening feature.
cated by the dotted line 24-.
The person opening the container then pulls the apex
In FIGURE 8 the sheet 30 is shown as provided with
end edge portion 32 resembling somewhat a truncated
wall closest to the edge 3 will begin to tear initially and
as the container is rolled in the manner shown in FIG 25 triangle. This con?guration may be provided on the op
URE 4, the portion of the coiled wall adjacent edge 4
will begin to tear.
Put another way the free end edge
posite end of the sheet if desired and, as in the case of
sheet 20, sheet 30 may be rolled from either end edge.
FIGURE 9' discloses still a further embodiment in
portion 6 has ‘such a con?guration that when grasped
which the end or free end edge of a blank or sheet 46 is
and pulled outward a tearing of the outermost wrapping
of the wrapped container body will occur adjacent the 30 cut so as to include a projecting tongue-like member or
portion 31' having diverging edges 32 and 32. In order
portions of the container where the container body is
to assure proper tearing of the blank, suitable score lines
33, 34 are provided. These score lines advantageously
merge with score lines 13 and 12 where the latter are
ores in the manner of a released coil spring due to the 35 provided. If score lines 12 and 13 are not provided, then
score lines 33 and 34 are continued outwardly to the
spring back characteristics of the foil.
double lock seamed to the end closures 1t) and a sub
sequent uncoiling or unwinding of the container body
will occur in a path substantially parallel to the end clos
For the purpose of getting controlled tearing of the
blank '1, as shown in FIGURES 1, 2 and 3, the blank
edges of the sheet as indicated by the dotted lines 33’
and 34'.
In a further advantageous embodiment of the inven
may be provided with score lines 12 and .131 such that
in all cases the container walls will tear in a straight 4:0 tion, reference being had particularly to FIGURE 6, it
will be noted that the unwrapped container body may be
used as a support for the product of the container by
folding over the edges 5, ‘5’, as shown in FIGURE 6, or
the edges 31 of the blank shown in FIGURE 8. This
as indicated in FIGURE 23, the inside wall 102. of the 45 feature is particularly useful in the case wherein foodstuff
F is packed within the container. In such a case, the
end closure 10’ may be made longer than the outside
foodstuff may be heated or cooked, as in the case of meat,
walls 103 and .1704 when the end closure 10' is af?xed to
biscuits or the like, directly on the unwrapped container
the tube 1. As a result, the lower portion of the inside
body by simply inverting the body such that the adhesive
wall 102 will then serve as a bearing surface for the score
.lines 12 and 13 and facilitate a controlled tearing of the 5.0 7 is on the underside thereof and placing the product
line. Because of its properties, only a very slight scoring
of cold rolled temper aluminum foil is necessary to assure
vproper tearing of the edges’.
In an advantageous embodiment of the invention and
edges while minimizing injury to the user of the instant
container during opening.
on the unmarked side.
1In all cases where the adhesive is used with a container
for food products, it will preferably be non-toxic, non
The wall of the container begins to unwind as it tears
?amm-able, and taste and odor-free such that it will not
free of closure members 10, as shown in FIGURE 4,
until the inner convolution is exposed. Then, as clearly 55 contaminate the product even if the uncoiled blank is
not inverted during its use as a cooking or baking utensil.
shown in FIGURE 5, the sealing line formed by cut edge
FIGURES 10-15 disclose a modi?ed form of container
5 and the adhesive bond is reached. Because of the quali
and container blank which is designed for use with food
ties of the adhesive, the seal may be readily broken and
stuffs having a high grease content, such as various meat
edge 5 freed from the unrolled container body.
The effect of cutting the edge 5 of the blank 1 on the 60 products. In this case, the corrugated or ribbed con
bias or diagonally as may be preferred becomes apparent.
tainer blank advantageously serves as a grilling or cook
the ends may be torn away from the unrolled blank and
the product is completely freed and rests on the metal
foil blank 1, now a ?at sheet, from which it may be re
URE 1.
ing utensil for the contents of the package. The cor
As the seal is broken, one end of the container is opened
rugated portions also aid in strengthening the package.
prior to the other end. Thus, two results are much in
This modi?ed form of container may be formed from a
evidence. First, the gas ‘from a pressurized product or
?uid from a semi-solid frozen product will be released 65 blank 39 of the type generally shown in FIGURE 1, for
example-Le, from a blank having parallel side edges 40’
without an ejection of the product, if pressurized, or the
and 41 and parallel end edges 42 and ‘43 with these end
?uid may be poured from this opening as the case may
edges being cut on a bias.
be. Secondly, the container is still easily manipulatable
The end edge 42 may also have a small triangular tab
such that the two ends will still roll parallel to each other
until the container is completely opened. At this time 70 44 and the blank may also be provided with a band 45
moved for use.
of adhesive, as in the case of the blank shown in FIG
'
The blank 39 differs from that shown in FIGURE 1
in that it is provided with a plurality of preferably in
Having thus described the manner in which the con 75 wardly directed ribs or corrugations 46. Thesecorruga
8,088,62d
7
tions also terminate short of the score lines 12 and 13,
which may be built into the blank, whereby ?at zones X
will be formed therebetween for a purpose to be more
alent, it is apparent that the fats usually contained therein
will ?uidize and should, if possible, be drained from the
product prior to consumption. By ribbing the blank, it
fully described hereinafter.
In forming this modi?ed container, reference being
side from which the ribs project, will be spaced slightly
will be seen that the food product G, if placed on the
made to the blank as shown in FIGURE 10‘ by way of
from the base surface on the blank.
example, the blank 39 is coiled or Wrapped on a suitable
grease or other renderings will drip into the valleys or
mandrel to de?ne a tube-like body 47. As indicated by
troughs between the ribs, as the case may be, and thus be
Thus, the fats and
the dotted lines of FIGURES ‘10, the edge 43 engages and
drained from the sausages or the like, rendering the
is held by the adhesive strip 45. The remainder of the 10 same relatively grease-free and considerably more succu
blank wall may then be comprised of a series of super
posed wrappings or coils, as indicated in FIGURE 11,
lent than would otherwise be the case.
It will be appreciated too that while the ribs have been
described as being normal, i.e., perpendicular to the
shell or body 47 with the top and bottom edges of the
edges 4t)’ and 41 of the blank 39, they might be angularly
blank lying in common planes. The shell or body 47 15 disposed relative thereto and thus form, when both ribs 46
coiled around the ?rst convolution to de?ne a container
and 46’ are used, a generally diamond-shaped pattern.
In a further advantageous embodiment of the invention
and as indicated particularly in FIGURES 16—l8, the
now formed as a series of coils is then provided with a
pair of end caps 48 and 49. These caps are cup shaped,
as indicated by the dotted lines F’ in FIGURE 11, and
are slipped into the cylindrical shell and are in contact
container body blank, such as blank 1, may be provided
with the innermost wall thereof. As indicated in the
several ?gures of the drawings, a portion of the annular
walls of the caps 43 and 49‘ project outwardly beyond the
edges of the wraps of .the container body 47. It is this
portion of each cap or closure which is subsequently rolled
back upon itself to de?ne with the edges of the convoluted 25
blank a double lock seam 50 wherein the closure edge is
with one or more perforations 59‘ located in the blank
adjacent a portion of the edge 5.
Thus, when two full
wraps 51 and 52. are made in the container body, the
perforations St} in the innermost wrap 51, all as indicated
particularly in FIGURE 18, will be e?ectively covered
by the outermost wrap 52. Since this type of container is
particularly adaptable for use as one for dispensing
rolled under the outer bead of the closure. The container
granular products, such as cheese, soap powder and the
.thus formed is also open in the same fashion as that shown
like, wherein a full or partial destruction of the con
tainer to gain access to the contents is not desirable, means
in FIGURES 1-5 above.
Although the ribs or corrugations 46 are shown as 30 may be provided whereby after only part of the outside
being so arranged as to generally somewhat parallel the
wrap 52 is peeled back, such as the part immediately
adjacent the tab 6, to expose the openings 50, this part
shorter edges of the blank 39, other arrangements can be
employed.
may be again secured in place to reseal the openings 50
after partial dispensing. This can be accomplished by
The areas X adjacent tear lines 12 and I3 and end edges
42 and 43 are not ribbed in order to allow the side edges 35 making a slit 53 either in the outermost wrap 52 or by
making aligned slits in both wraps 51 and 52 at a point
4%)” and 41', which remain after the body 47 have been
substantially adjacent the perforations 5%.
unwrapped, to be easily folded upwardly to form effective
The tab 6 is insertable in this slit and upon removing
side w?ls for the cooking utensil formed from the blank
the tab as indicated in FIGURE 17, the openings 50 are
39 after it has been unwrapped, as indicated particularly
in FIGURE 13.
40 exposed and the contents of the container may be easily
dispensed.
Although the ribs 46 may be arranged parallel to edges
Another modi?cation of the container formed by the
40’ and 41, it is preferable to arrange the ribs perpen~
blank 1 of the instant invention is shown in FIGURES
dicular to these edges since it is easier to coil or wrap the
container body wherein the axis of coiling or wrapping of
19 and 20. In this case, the container blank 1 is provid
ed with one large opening or window 55 where the con
the blank 39 is parallel to the ribs. If desired, the blank
may also be cross ribbed whereby it will have a grid iron
tainer body is to have but one convolution or two or more
design, i.e., it has ribs 46 and 46" both perpendicular and
windows 55 where there ‘are two or more convolutions
somewhat parallel to all edges of the blank.
whereby the contents of the package will be open to in—
In FIGURES 14 and 15, different representative cross
spection by the purchaser. In the case of where two or
sectional views are shown of the con?gurations which
more windows are employed, care must be exercised in so
might be imparted to the ribs or corrugations in the blank,
locating the windows 55 with respect to each other where
though it will be appreciated that other con?gurations
by they will be properly indexed or located in registry
with each other when the convoluted body 20 is formed
might also be used. In FIGURE 14, the ribs 46 are of
the so-called “?at top” type. In FIGURE 15, the ribs
and secured to the end covers 10. In the case of this con
46 and 46’ are shown as comprising simple inverted
tainer also, the windows 55 at least ‘are either covered by
55 a suitable clear or transparent plastic material, such as
V-shaped interruptions of the surface of the blank.
Regardless of what con?guration of corrugation is
mylar polyester or the like, or the entire blank 1 is of
employed, the corrugations ?nd their most advantageous
laminated design comprising the aluminum 57 land the
use as grilling surfaces for the foodstuffs packaged therein
transparent plastic material 58. In any event, the plastic
when the container after opening is ?attened into a broil
material 58 when used should be such that it does not
ing pan as indicated in FIGURE 13. At this time, the 60 deleteriously affect the food contents of the container and
food G having a high grease content is placed upon the
it should also be sufficiently heat resistant whereby it will
corrugations and the grease or fat renderings are collected
withstand, without serious deterioration, oven tempera
in the troughs between the corrugations.
tures in the range of 325 ° F. or the temperatures to which
Let us assume, for purposes of an example, that the
the blank, when used as a coo-king utensil in the manner
product packaged within the container is pork sausage. 65 shown in ‘FIGURE 6-, will be exposed. The blank may
As is now believed clear, the ‘container would be opened
in the manner shown in FIGURE 12. The unwrapped
blank would then be laid ?at and its ends 42 and 43 folded
over in the manner illustrated by the arrows in FIGURE
13. At the same time, the ?at areas X located inter
mediate the tear lines 12. and 13 and ends of the ?utes 46
are folded upwardly to form side walls. When this is
also be provided with an adhesive strip 7 if desired for
the purposes previously discussed.
Thus, it may be seen that the invention herein de
scribed provides a multi-purpose unique container having
features never before available in a single container.
done, a unique completely enclosed and disposable broil
ing pan is formed.
In the case of a product such as sausage or its equiv
It
will be appreciated that changes may be made in the
disclosed device, all of which are within the spirit and
scope ‘of the invention as ‘de?ned by the following claims,
wherein:
75
1. A combined merchandising and cooking container
3,088,624
10
a pair of cup-shaped elements provided with walls double
lock seamed to the opposed side edges of the wrapped
container body, the said opposed side edges of said
wrapped container body having stretched portions so as
to facilitate the application of the end closures thereto,
the outermost wrapping of said wrapped container body
having a free end edge portion projecting from said
Wrapping, said free end edge portion having such a con
innermost edge of the blank to de?ne a sealed tube, said
?guration whereby when it is pulled outward a tearing
end closures ‘acting as the primary means for immobilizing
said wraps, said blank including a plurality of parallel 10 of the outermost wrapping of said wrapped container
body will occur adjacent the portions of the container
ribs in the intermediate portion thereof ‘and ?at areas
Where the wrapped container body is double lock seamed
adjacent the side and end margins thereof, the container
to the end closures, and said container being openable
formed from the blank being openable by uncoiling of
by grasping said free end edge portion and effecting a
said body, whereby the resultant ribbed areas may serve
as a grilling surface for the foodstuffs having a high grease 15 tearing and separation of the outermost wrapping of said
wrapped container body adjacent the said portions of the
content that ‘are packaged in said container, and the flat
container and a subsequent uncoiling of said wrapped
areas adjacent the margins of the blank being foldable
container body in a path substantially parallel to the
upward to form upstanding walls when the blank is un
for foodstuffs having a high grease content requiring
cooking prior to consumption comprising a body and end
closures positively locked to said body, said body being
formed solely from an elongated readily tearable self-sup
porting cold rolled temper aluminum foil blank coiled
upon itself to de?ne a series of superposed wraps, the
innermost wrap only of which is adhesively secured to the
wrapped.
end closures in the manner of a released coil spring due
as de?ned in claim 1 wherein the marginal edges of the
blank on two opposed sides thereof are double lock
9. The container as set forth in claim 8 including ad
hesive means lightly and releasably securing an interiorly
disposed end edge of the blank to an adjacent wrapping.
2. A combined merchandizing and cooking container 20 to the spring back characteristics of said foil.
seamed to said end closures and said marginal edges also
10. The container as set forth in claim 8 wherein said
being provided with stretched portions so as to facilitate
25 blank is provided with score lines paralleling said end
the application of the end closures thereto.
closures for facilitating the separation of the wrapped
3. A container as de?ned in claim 1 wherein said par
container body from the end closures during uncoiling
allel ribs extend transversely of the direction in which said
of said wrapped container body.
blank is coiled to form said container body.
11. A container as set forth in claim 8 wherein the
4. A container as de?ned in claim 1 wherein said par
allel ribs extend across the surface of said blank parallel 30 inside wall of an end closure is of greater length than
to the axis about which said blank is coiled to form a
the outside walls thereof to facilitate a controlled tear
container body.
ing of the wrapped container body from the end closures.
5. A container as de?ned in claim 1 wherein said par
12. A container as set forth in claim 8 wherein the
blank is provided with a pair of wrappings, the portion of
allel ?utes comprise two series of intersecting ribs extend
ing across the surface of said blank both perpendicular 35 the blank constituting the innermost wrapping being
perforated and the adjacent outer wrapping serving as
and parallel with respect to the axis about which said
a cover for the perforated portion of the innermost
blank is coiled to form a container body.
wrapping, said outer wrapping also having tab means for
6, A container as de?ned in claim 1 wherein said blank
securing said outer wrapping in place once part of said
is comprised of aluminum foil of from .001 to .005 inch
40 outer wrapping has been peeled back.
in thickness.
7. A merchandising and cooking container of the type
13. A container as set forth in claim 8 wherein said
described, comprising the combination of a ribbed body
wrappings are provided with windows located in registry
formed by coiling a single blank of self-supporting cold
with each other and a transparent plastic material cover
rolled temper ribbed readily tearable aluminum foil hav
ing said windows.
ing resilient spring back characteristics ‘and relatively fric 45
References Cited in the ?le of this patent
tion-free surfaces into a series of superposed convolutions,
a pair of end closures positively locked to said coiled
UNITED STATES PATENTS
ribbed body, said end closures comprising a pair of disc
203,328
Edgar _______________ __ May 7, 1878
shaped elements double lock seamed to the edges of the
219,083
Follett _______________ .. Sept. 2, 1879
coiled ribbed body, said edges having stretched portions so 50
679,171
Jones _______________ _._ July 23, 1901
as to facilitate the application of the disc-shaped elements
thereto, said container being openable by uncoiling of
said body ‘and separation of its edges from said end clo
sures with said uncoiled ribbed body serving as a grilling
1,536,481
1,568,437
Dickey ______________ _._ May 5, 1925
Bach ________________ __ Ian. 5, 1926
2,016,988
2,719,662
2,775,394
2,858,057
Cross _______________ __ Oct. 8,
Cooper ______________ __ Dec. 8,
Hildebrandt __________ __ Apr. 6,
Schmidt _____________ _._ July 4,
Calve et al. __________ __ Sept. 12,
Hothersall ___________ .._ Jan. 16,
Grove _______________ __ Mar. 7,
Ayers _______________ __ July 3,
Reynolds ____________ __ Feb. 124,
Fisher ______________ __ Nov. 30,
Minteer et a1. _________ __ Oct. 4,
Lucas _______________ __ Dec. 25,
Mullinix ____________ _._ Oct. 28,
2,901,162
Vallas ___ ____ __ ______ __ Aug. 25, 1959
surface for cooking the contents :of the container upon the 55 2,063,013
2,076,342
opening thereof and said end closures also acting as the
2,164,430
primary means for holding said convolutions tightly
2,172,864
coiled.
2,186,973
8. A readily openable merchandizing container com
prising the combination of a container body formed by 60 2,343,550
2,558,723
coiling a blank of readily tearable self-supporting cold
2,629,534
rolled temper aluminum foil having resilient spring back
2,695,847
characteristics and relatively friction-free surfaces upon
itself to form a plurality of mappings, a pair of end
closures positively locked to the opposed side edges of 65
the wrapped container body and acting as the primary
means for holding the wrappings of the container body
in an immobile condition, said end closures comprising
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