close

Вход

Забыли?

вход по аккаунту

?

Патент USA US3082937

код для вставки
March 26, 1963
1-. w. WINSTEAD
3,082,927
LINED CONTAINER
Filed July 26, 1960
3 Sheets-Sheet 1
THOMAS M’.
TEJQD
BY WM- 1
ATTORNEY
March 26, 1963
T. w. WINSTEAD
3,032,927
LINED CONTAINER
-
Filed July 26, 1960
3 Sheets-Sheet 2
moms w. wms r540
1N VEN TOR.
By
ATTORNEY
March 26, 1963
T. w. WINSTEAD
3,082,927
LINED CONTAINER
Filed July 26, 1960
5 Sheets-Sheet 3
INVENTOR
THOMAS m WINSTEAD
BY
ATTORNEY
v
3,082,927
Patented Mar. 26, 1953
1
2
3,082,927
Thomas ‘W. Winstead, Baltimore, Md, assignor to Hed
win (Zorporation, Baitirnore, Md., a corporation of
Maryland
LINED CONTAINER
Filed July 26, 1960, Ser. No. 45,326
4- Claims. (Cl. 229—14)
vide a container which eliminates folds or creases, except
where speci?cally provided for, and having a shape
adapted to ?t the interior contour of an outer carton with
out folds or creases.
1
Still another object ‘of the invention is to provide a
plastic container which may be formed of two symmetrical
halves sealed together along mating edges or alternatively,
formed with integral or seamless walls as for example
This invention relates broadly to containers and more
by blow molding, in either instance, the container being
speci?cally to a light weight container adapted to hold 10 “formed” into shape and having ample contoured radii
liquids, powders and semi-solids, the present application
at all corners to stiffen them against ?exing under stresses
being a continuation-in-part of copending application Seri
encountered ‘in shipping and handling, particularly when
al No. 618,913, ?led October 29, 1956, now Patent No.
2,950,029.
.
the container is employed as the liner of an outer carton.
It may also be noted that the present invention con
An object of the present invention in one of its forms 15 templates not only the use of ?exible, semi-rigid thermo
is to provide a container which is collapsible when empty,
plastic material in forming a container with collapsible
in such a manner as to provide a desired draft for nest
walls to facilitate nesting, but non-?exible and non-col
ing of a plurality of containers for shipping purposes. _
lapsible material where the nesting of containers is not
Another object of the present invention is to provide
necessarily desired.
a container having a shape which provides the greatest 20
Other and additional advantages and features of the
volume for the minimum surface area of any rectangular
present invention will be more readily apparent from the
shape, and having symmetry about a line which is used for ’
collapsing which is important for optimum space saving
features‘.
-
-
'
‘
following detailed description of embodiments thereof,
when taken together with the accompanying drawings in
which:
Another object of the invention is to provide a container
FIG. 1 is a perspective view of one embodiment of the
which can be used for any product requiring protection 25 container of the present invention;
from contamination, spoilage, corrosive action or mois
FIG. 2 is a side elevational view of the container of
ture and incorporating a foldable neck and pouring spout,
FIG. 1;
adapted for use with any of a plurality of types of clo
FIG. 3 is a side view of the container of FIG. 1 in par
sures, such as a heat-scalable closure, a snap-cap clo
tially collapsed position;
'
30
sure and a screw-cap closure or other types known in
FIG. 4 is a side elevational view of a plurality of col~
the art.
lapsed and nested containers; '
A still further object of the present invention is to pro
FIG. 5 is a side elevational view of a modi?ed form of
vide a container having a neck which is tapered from a
container;
'
wide, easy to ?ll mouth to a narrow point at the edge of
FIGS. 6, 7 and 8 are fragmentary sectional views of
35
the container, preferably of cubical shape, for easy fold
a heat scalable type of container closure in various stages
ing. The con?guration of the neck maintains approxi
mately the same cross-sectional area from the base to
of sealing and folding;
FIGS. 9, 10 and 11 are fragmentary sectional views of
a snap-on type of container closure in various stages of
the outlet whereby liquids or other materials may ?ow
readily from the container.
closing and folding:
of folding of a spout when, for example, the container 45
an
'
An additional object of the present invention in one 40
FIGS. 12, 13 and 14 are fragmentary sectional views
of its forms is to provide a container of substantially
of a screw-type of container closure in various stages of
cubical shape having a fold line in the body thereof,v and
closing and folding;
a fold line in the spout to facilitate collapsing of the
FIG. 15 is a perspective View of a modi?ed form of
container for nesting purposes, and ease and correctness
the£1 invention embodying a container with seamless walls;
is to be inserted in an outer container or carton for
FIG. 16 is a side elevational view partly broken away,
showing the relationship of the container to the walls of
A still further and important object of the present in
an outer carton.
vention in all of its forms is to provide a plastic container
In the embodiment of the invention shown in FIG. I,
50
which is “formed” to shape and having ample contoured
the container generally designated 20 is formed of two
radii at all corners to stiffen them against ?exing, and the
symmetrical halves 22 and 24 which are sealed together
container being usable by itself or adapted to be used as
by heat sealing along a seal line 26. vIt will be noted
an insert in an outer carton of paper or other materials,
that the container is substantially in the shape of a cube
and which outer carton can serve as a shipping container.
which has been found to be the shape which provides the
A further object of the present invention is to provide
greatest volume for the minimum surface area of any
a container having a foldable neck and pouring spout and
rectangular shape. However, an exact cube is not ab
a recess being provided in the body of the container to
solutely essential, although with a collapsible container,
receive the folded neck.
the symmetry about the line which is used for collapsing,
Another object of the present invention in one form
as will be pointed out hereinafter, is important for opti
is to provide a substantially cubical shaped container
mum space saving.
strength and shipping purposes.
which is diagonally collapsible to provide the necessary
draft for nesting, and in which a slight indentation is pro
vided for de?ning the point of collapsibility.
An additional object of the present invention is to pro~
The container in this embodiment is preferably formed
of a ?exible thermoplastic material such as, for example
only, polyethylene which as is known has an unusual
combination of properties including freedom from taste,
3,082,927
4
odor, toxicity; ?exibility at extremely low temperatures;
low moisture-vapor transmission; resistance to chemicals,
for example, in an outer carton as in my copending appli
cation Serial No. 618,927, ?led October 29, 1956, now
Patent No. ‘2,954,901, or when a plurality are to be placed
in one carton for shipping, the spouts can be folded back
into contact with the body of the container. This aspect
of the invention will be more specifically described here
inafter in connection with FIGS. 6, '7 and 8.
In FIG. 5 of the drawings a modi?ed form of the in
vention is shown. Here the container ‘48 is again formed
solvents, greases; and good characteristics from the tensile,
impact and other physical points of view. Manifestly,
thermoplastic materials such as vinyls, acetates and
styrenes, and others can be utilized. Additionally, if de
sired, a rigid plastic can be used ‘which will still maintain
the advantage of light weight.
As is known, polyethylene and many other semi-rigid
thermoplastics are susceptible of stress fatigue when 10 of symmetrical halves 50 and52, sealed together along
line 54, and a ?lling neck and spout 56 similar to the
?exed or vibrated. Ample radii are used at all corners
such as indicated at 28 to' stiffen the corners against
neck 30 of the FIG. 1 embodiment is positioned at an
?exing. Due to the semi-rigid nature of the material
contemplated and the method of forming, thev container
edge of the container. Preferably, this container 48 is
which are susceptible to handling damage in shipment.
A ?lling neck and pouring’ spout 30 is provided at an
at any point or on either side to obtain the most desirable
also of cubical shape. The difference between this ern~
may be said to be “formed". to shapeas ina bottle in 15 bodiment and the previously described embodiment re
sides in the fact that no fold lines are provided either in
contra distinction to a bag which is normally constructed
the body of the container or in the neck. Additionally,
of a very thin material, and which wrinkles or is folded
if desired, the seam at 54 can be of less pronounced di
into the shape of anouter carton when used, thereby
mensions. For some applications this construction of
leaving many points where stress fatigue due to ?exing
can occur. The contoured edges and corners which 20 container is desirable, especially where the collapsibility
feature or foldable feature of the neck are not so im
have generous radii represent a design feature which is
portant.
>
signi?cant in a semi-rigid or ?exible container of this
It is to be noted that in the embodiments shown it is
type both with respect to minimizing flexing, which as
possible, in accordance with the process of manufactur
sures better performance at lower cost, and to providing
clearance from the edges and corners of an outer carton 25 ing the container, to control the thickness of the neck
results. Due to the shape and con?guration, in conjunc
tion with the arrangement of the spout with relation to
edge of the container. Due to the fact that in this em
the container, a‘ most desirable location is provided and
bodiment the container is formed of two diagonally split
sections or halves which are symmetrical, and as indi
30 at the same time folding case is incorporated as well as
acecssibility. An important feature of this invention
cated at 22 and 24, it is also possible to split this spout
when embodiedin a container of cubical shape, is the
through its narrowed dimension. ‘This permits a wide‘
particular location of the pouring spout in the front center
and flat spout at the corner of the container where it
of a top edge of the container. This center location of
is most desirable. This ?lling neck and pouring spout
30 also is sealed at its edges 32 at the same time that the 35 the pouring spout has certain de?nite advantages over
other forms as it facilitates fabrication, provides better
halves 22 and 24 are sealed along line 26. This neck
pour and drip clearance, improves balance when pouring
is tapered from a wide, easy to ?ll mouth 34, of an oval
and provides easier and better product recovery or more
con?guration before sealing, and tapers to a ‘narrow point
complete elimination of the contents of the container.
at 36 which is the corner of the container. This narrow
As previously pointed out, one of the most important
point at the corner facilitates easy folding as will appear 40
features of the present invention resides in the construc
hereinafter. As the neck gets'narrower it also gets'wider,
tion, shape and con?guration of the foldable neck and
thereby maintaining approximately the same cross-sec
pouring spout. FIGS. 6 to’ 14 inclusive disclose several
tional area. Therefore, liquids can ?ow readily through
possible types of closures which can be used on the spout.
the folding point without undue restriction.
. . .
In FIGS. ‘6, 7 and 8 a heat scalable type of closure is
In order to facilitate easy collapsing of the container 45
shown. . Here. the body of the container is shown at 58
for nesting such as shown in FIGS. 3 and‘ 4, a fold line.
‘and the pouring spout is designated 60. The pouring
is provided at 38 which extends completely around the
container in spaced vparallel relationship with the seal
spout 60 is provided with a fold line 62, and a recess 64
line 26. This fold line 38 is formed by providing a slight
indentation in the material of the container itself. vDue 50
to the use of semi-rigid plastic material, the body can
‘be’?exed as shown in FIG. 3 wherein the body half 24
is collapsed into the half 22 around the fold line 38, the
initial collapsing stage being shown in FIG. 3.~ When »
is formed in the body of the container in proximity to
the base of the neck or spout 60.
This recess while de
sira-ble is not entirely necessary. The end of the spout’
or neck 60 is closed by sealing at 66 as shown in FIG. 7,’
and thereafter the neck or spout 60‘ is ‘folded backwardly
along fold line 62 in the direction of the arrow 68,‘ in
this collapsing is ‘completed, the containers assume the 55 FIG. 8 into the recess 64 which gives a more symmetrical
con?guration to the ?lled and closed container. In this
con?guration shown in FIG. 4 wherein a plurality of the
containers designated as 40, 42, 44 have the half portions - type of heat-sealable closure, the oval narrow shape of
corresponding to 24 in FIG.. 1. collapsed within the other
the neck with the tapered’ seal at each'edge permits the
neck to be easily ?attened and readily sealed ‘by the heat
60 sealing jaws of almost any standard type of bag sealer.
In order to facilitate thefolding of the ?lling neck and
When this type of closure is used, the ultimate user cuts
pouring spout 30, a fold line 46. is provided at thebaseor
either a corner or the entire length of the seal from the
half portions and can be nested as shown for easy shipping
Withasubstantial conservation of space.
_
., T
. .
narrow portion 36 of; the spout where it joins with the
body of the container.’ This fold line v46 is formed'
spout. This design is primarily used on containers '
where re-use is of secondary importance. .Actually, the
similarly to the fold line 38,-by,v providing a slight in 65 spoutcan be folded and tucked back into an outer carton
1 dentation inrthe body. of the container. .The provision » which will provide an almost airtight seal ‘and is com
of the fold lines '38 and 46 provides folding or collapsing
only at desired points and prevents the undesired creasing
or In
bending
the embodiment
of the material.
disclosed
' _ in
.7 FIGS.
.
1 to_4
- inclusive
-
of thedrlawingstthese fold lines are. provided and the
pletely satisfactory in many re-use applications. This
secondary seal is achieved by the contour design at the
base of the spout which ‘forms a tight restriction when
70
folded.
'
‘
In the embodiment shown inVFIGS. 9, l0‘ and 11, av
spout .is shown as being of a heat scalable; character. *
snap-cap type of closure is used. "In this form of the
After the container is ?lled, then the end of the pouring‘
spout iscollapsed and sealed by any desired heat sealing
invention a recess‘i’ltl" which is designed to receive the
‘neck 72 is desirable due to the configuration of the neck.
means’. Thereafter when the container is 'to be placed, 75 The neck 72 is provided with fold line 74 and the outer
5
3,082,927
end of the neck has a restricted annular ori?ce 76 which
can be of any desired con?guration. A cap 78 of prop
er dimensions and con?guration is attached to the neck
by ?exible link '80. The con?guration and dimensions
eliminates the dii?culties of stress fatigue due to ?exing
such as in a. bag of very thin material which wrinkles
or is folded into the shape of the outer carton.
As previously indicated, instead of vforming the con
of the ori?ce 76 and cap 78 are such that the cap has a
tainer of two halves joined together along diagonal mat
snap-in ?t in the ori?ce 76, and is shown in that position
_ ing edges, it may be initially formed as an integral seam
in FIG. 10. After having closed the ori?ce 76 with the
less structure as shown in FIG. 15. Here it will be seen
cap 78, the neck 72 is folded along fold line 74 into the
that the basic con?guration of the container 20a remains
recess 70 as shown in FIG. 11, the direction of folding
being indicated by arrow 82. Again in this modi?ca 10 the same, including the generously contoured radii 28a
at all edges and the ?lling and pouring spout 30a located
tion, the end result when the neck has been closed and
centrally along one of the upper edges. Such a contain
folded provides a symmetrical con?guration to the con
er may be formed by any of various standard techniques
tainer.
‘
in the industry, such as blow molding or sintering, and
In FIGS. 12, 13 and 14 the container is provided with
a screw-cap closure. Here again a recess ‘84 is desirable 15 it will be apparent that although thickness distribution’
might be slightly less ef?cient in such techniques, the basic
and is formed in the body of the container. The neck
features of invention are maintained. In other words,
86 is provided with fold line 88, and a threaded ori?ce
a container formed with seamless walls includes the ?ex
90 is provided at the ‘outer end of the neck. A cap 92
resistant
contours, collapsibility ‘for nesting, pouring
of a type having a double ?ange or skirt 94, 96 is attached
to the neck by ?exible member 98. The ?anges 94 and 20 spout location, and cubical shape, all of which especial—
ly adapt the container for use as the liner of an outer
96 are provided with screw threads and are adapted for
carton.
coaction with the screw threads of the threaded ori?ce
The particular relationship of the liner 20a to an outer
90 and being on either side thereof. A strengthening rib
100 is provided in the interior of the cap, exposed to the
carton is illustrated in FIG. 16 where the liner is disposed
outside, and additionally can serve to facilitate attach 25 within an outer carton 104, shown broken away to illus
trate the clearance 105 between the contoured radii 28a
ing or detaching the cap from the threaded ori?ce 90.
and the adjacent edges and corners of the outer carton
After the cap has been placed on the ori?ce to close
104, which not only provides adequate surface contact
support
for the walls of the container but prevents han
fold lines 88, indicated by arrow 102. Here again the
30 dling damage in shipment due to impact on the edges and
symmetrical outline of the container is provided.
corners of the outer carton.
It will be seen from the foregoing that a container has
While the preferred form of the container of either
been developed having highly desirable features and
embodiment of the present invention is cubical, it will be
which can be manufactured by a process which is quite
understood that any suitable rectangular shape may be
versatile and featuring controlled distribution of material
employed and, as before indicated, the container may be
thickness. The process is readily adaptable to large con
of collapsible material or rigid material while still main
tainers and without restrictions as to shape, size, closure
taining the advantages of the contoured radii along all
or inefficiencies affecting cost. The containers of the pres
edges.
ent invention have many advantages over not only other
From the foregoing, it is believed that the invention
plastic bottles or containers, but also over conventional
may be readily understood by those skilled in the art with
‘glass and metal containers as well. When constructed
out further description, it being borne in mind that nu
of a ?exible thermoplastic material it can be collapsed
merous changes may be made in the details disclosed With
and nested for economical shipment to the user and
out departing from the spirit of the invention as set forth
Where a rigid thermoplastic is utilized, although collapsi
in the following claims.
bility cannot be exploited, nevertheless the light weight
I claim:
is of a de?nite advantage.
45
1. In combination, an outer carton of substantially rec
The location and con?guration of the spout, prefer
tangular
shape and a separable inner container, said inner
ably at an edge of the container of a cubical con?gura
container comprising a hollow body of a thermoplastic
tion, provides an extremely convenient pouring spout, and
material of self-sustaining rigidity having integral top,
at the same time permits folding ease and accessibility.
bottom
and side walls formed to substantially the inner
Fold lines are provided to facilitate collapsing of the con 50
shape of the outer carton, all junctions of adjacent re
tainers and folding of the spout to facilitate packaging
spective top, bottom and side walls converging in con
or shipping. The collapsing of the container diagonally
toured
radii which bound the extremities of the container
is of importance in this connection since it provides the
to thereby provide a clearance space between all inner
necessary draft for nesting which could not be obtained
corners and edges of said outer carton and the adjacent
as readily with other con?gurations.
55 areas of said inner container.
Due to the con?guration and the construction of the
the container, the neck 86 is folded into recess ‘84 along
2. In combination, an outer carton of substantially rec
container, the process permits forming two sheets and
tangular shape and a separable inner container, said inner
joining them together to form a complete container. By
container comprising a hollow body of a thermoplastic
splitting the cubical container diagonally, it is also pos
material
of ‘s'elf-sustanining rigidity, having seamless top,
sible to split the spout through its narrowed dimension 60 bottom and side wall portions, all junctions of adjacent
which allows a wide ?at spout at the corner of the cube
top, ‘bottom and Wall portions respectively converging in
where it is most desirable. In other bottle processes the
integral
contoured radii forming a continuous boundary
con?guration of the spout of the present invention to
for the extremities of the container, devoid of sharp‘ edges
gether with its highly desirable characteristics would be
to thereby provide a clearance space between all inner
extremely di?icult, if not impossible to make.
65 corners and edges of said outer cart-on and the adjacent
_ Where it is desired to use the present container as an
insert in an outer carton, the container can be shaped to
areas of said inner container.
3. In combination, an outer carton of substantially rec~
?t the interior contour of the outer carton without folds
or creases, and ample radii are used at all corners to
tangular shape and bounded by substantially rectangular
stiffen them against ?exing.
folds in such a way that ?exing is completely eliminated
during transit. It is held ?at against the outer carton
by the Slde Wall of the insert itself. The fact that the
a thermoplastic material of self-sustaining rigidity, having
top,_bottom and side wall portions formed to substantially
present container is “formed” to shape, as is a bottle
supported in surface contact with the adjacent wa1ls of
75 said
carton, all junctions of adjacent top, bottom and side
edges and joining corners, and a separable inner con
When the neck folds, it 70 tainer, said inner container comprising a hollow body of
the inner shape of the outer carton with their major areas
8,082,927
>
7
tinuous boundary for the extremities of the container, de
Wall portions of said container ‘converging in contoured
radii whi-ch'bound'the extremities of the container to
thereby provide a clearance space ‘between all‘inner cor
ners and edges of said outer carton and the adjacent areas
of said inner container.
‘
p
'
‘
'
void of sharp edges to, thereby provide a clearance space
;_ between all inner corners and edges of said outer carton
and the adjacent areas of said inner container.
"
' 4'. ‘In combination, an outer carton of substantially rec'
tangular shape and 'a separable inner container, said inner
container comprising a hollow ‘body of ‘a thermoplastic
material of self-sustaining‘rigidity, having seamless top,
bottom and side Wall’ portions, the'miajor areas of which 10
are supported in surface contact with the adjacent Walls
of said outer carton,>the junctions of all adjacent top, bot
References Cited in the ?le of this patent
‘ UNITED STATES PATENTS
2,831,610,
Dennie __ _____________ __ Apr. 22,1958
2,857,947
2,861,718
2,954,901
Powers _______________ __ Oct. 28, 1958
Winzen _____________ __ Nov. 25, 1958
Winstead ______________ __ Oct. 4, 1960
1,237,455
France ______________ __ June 20‘, 1960
FOREIGN PATENTS»
tom and side wall'portions of said container respectively
converging in integral contoured radii forming a con~
Документ
Категория
Без категории
Просмотров
0
Размер файла
697 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа