U.S. patent number 3,620,410 [Application Number 05/030,172] was granted by the patent office on 1971-11-16 for plastic bail for container and method of attaching bail.
This patent grant is currently assigned to National Can Corporation, Chicago, IL. Invention is credited to Elmer W. Griese, Jr..
United States Patent |
3,620,410 |
|
November 16, 1971 |
**Please see images for:
( Certificate of Correction ) ** |
PLASTIC BAIL FOR CONTAINER AND METHOD OF ATTACHING BAIL
Abstract
A container handle made from a single flat sheet of resilient
material and having an annular member including rectilinear side
portions and arcuate end portions with a bail extending from the
outer edge of the angular member and having a central rectilinear
section spaced from one of the side portions and integrally joined
with each of the end portions. The container handle is attached to
a container body by encircling the body with the annular member
adjacent one end and seaming an end to the body in a manner to
crimp at least a portion of the annular member between the body and
the seam.
Inventors: |
Elmer W. Griese, Jr. (Chicago,
IL) |
Assignee: |
National Can Corporation, Chicago,
IL (N/A)
|
Family
ID: |
21852871 |
Appl.
No.: |
05/030,172 |
Filed: |
April 20, 1970 |
Current U.S.
Class: |
220/754; 220/763;
215/398; 220/758; 294/31.2 |
Current CPC
Class: |
B65D
25/2876 (20130101) |
Current International
Class: |
B65D
25/28 (20060101); B65d 025/28 () |
Field of
Search: |
;220/94A,94R ;215/100A
;229/52R,52A,52B,52AL ;206/65C ;16/110.5 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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|
|
|
|
|
92732 |
|
Oct 1, 1958 |
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NO |
|
692315 |
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Jun 1, 1953 |
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GB3 |
|
1288260 |
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Feb 1, 1962 |
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FR |
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Primary Examiner: Lloyd L. King
Attorney, Agent or Firm: Robert J. Doherty
Claims
What is claimed is:
1. In combination with a container having a body and an end secured
to said body by a double seam, a handle comprising an endless band
encircling said body adjacent said end and having a portion thereof
located between said body and said double seam; and a bail integral
with said band, said bail normally being located in juxtaposed
relation to said body below said end and adapted to be moved to a
carrying position extending beyond said body and said end.
2. A container handle made flat in one piece and lying in a single
plane, said handle being formed of a resilient thermoplastic
material and comprising: an annular member having rectilinear side
portions and arcuate end portions, said annular member having inner
and outer edges; and bail means extending from said outer edge,
said bail means having a central rectilinear section spaced from
and substantially coextensive with one of said side portions; and
means integrally joining said central section with said end
portions.
3. A container handle as defined in claim 2, in which the inner
edge portions of said end portions are substantially circular.
4. A container handle as defined in claim 3, in which the inner
edge portions of said end portions have a radius which is one-half
the distance between the rectilinear side portions.
5. A container handle as defined in claim 2, in which said last
means connect said central rectilinear section to said end portions
adjacent the other of said rectilinear portions.
6. A method of attaching a handle to a container having a body and
an end comprising the steps of encompassing said body with a band
of material having a handle portion integral with one edge;
locating an opposite edge of said band adjacent one end of said
body; and seaming said end to said body in a manner to secure at
least a portion of said band between the body and the seam.
7. A method as defined in claim 6, in which said material is a
resilient, flexible plastic material and in which said band is
tensioned to encompass said body.
8. A method as defined in claim 7, in which said band has an
opening which is substantially smaller than the peripheral
dimension of said body in its undeformed condition.
9. A method as defined in claim 8, in which said opening is
substantially rectangular.
10. A method as defined in claim 6, in which said band and handle
portion are produced from a flat one-piece sheet.
11. A method of producing and attaching a handle to a container
having a circular body and an end which comprises the steps of
producing an integral handle and connecting member from a flat
sheet having a single plane with the connecting member having an
inner edge defining an opening smaller than the peripheral
dimension of said body and the handle being connected at opposite
ends to an outer edge of said connecting member; deforming said
connecting member from said plane to enlarge said opening to
substantially the peripheral dimension of said body; locating said
inner edge adjacent one end of said body and said outer edge spaced
from said one end; and seaming said end to said one end of said
body to crimp said inner edge between the seam and the body.
12. A method as defined in claim 11, in which said opening is
substantially rectangular when the connecting member is in its
undeformed condition.
13. A method as defined in claim 11, in which said sheet is a
resilient flexible plastic material including the further step of
changing the elastic memory of the connecting area of said sheet
between the outer edge of said connecting member and the adjacent
edge of said handle.
Description
The present invention relates generally to containers and more
particularly to an improved handle for containers and a method for
attaching the handle to the containers.
The use of metal containers for packaging various products for
shipment has been a common practice for many years. In packaging
merchandise, such as paint, one well-known size of container is a
1-gallon can having a handle or bail pivotally supported by ears
located at diametrically opposed points on the container body.
The use of a metal handle or bail has several disadvantages and the
various steps necessary for attaching the handle to the container
substantially increases the cost of the container. In conventional
metal handles or bails, it is necessary to separately form the ears
and locate the ears on the container. Subsequently the bail is
either manually or machine-connected in an additional operation by
inserting the ends of the bail into openings formed in the ears.
Since the bails are normally formed from a continuous supply of
wire, the ends of the bails are cut and bent. As a result the ends
are uncoated and are subjected to rusting during storage. Also,
when packaging several cans with the metal bails, it is necessary
to orient the containers relative to the dividers normally forming
part of a larger container package.
Another problem encountered in containers having the metal bail or
handle, is that the label is normally applied to the container
surface after the ears have been secured thereto. Thus, it becomes
necessary to accurately orient the label relative to the ears to
ensure that openings in the label are concentric with the centers
of the respective ears.
While many alternate handle constructions have been proposed, to
date none of these have been commercially acceptable for the
conventional paint cans and the like and there still remains an
urgent need for a simple and inexpensive replacement for the
conventional metal bail.
The present invention relates generally to a plastic bail or handle
which can readily be formed from an inexpensive flat sheet of
plastic material and which may be attached to a container
simultaneous to the attachment of the container end to the
container body.
More specifically, the present invention contemplates a container
handle made flat in one piece and lying in a single plane with the
handle or bail including an annular member having rectilinear side
portions and arcuate end portions and defining inner and outer
edges. The inner edge defines a substantially rectangular opening.
Bail means are formed integral with the annular member or support
and include a central rectilinear section spaced from and
substantially coextensive with the length of one of the side
portions and integrally joined to the outer edge along the arcuate
end portions. The integral connections defines hinges between the
bail and the annular member or band.
The container handle is attached to the container by encompassing
the body with the annular member and locating the inner edge of the
annular member adjacent one end of the body. Subsequently, a
container end is attached to the container body by the usual
seaming process in a manner that at least a portion of the annular
member is secured or crimped between the body and the seam.
According to a further aspect of the present invention, the
substantially rectangular opening in the annular member is made
smaller than the peripheral dimension of the body so that the
annular member must be stretched or tensioned when the member is
placed on the body. By having the opening smaller than the size of
the container body, the annular member will be deformed from the
single plane to produce a substantially circular band and the
opening becomes enlarged to substantially the peripheral dimension
of the body.
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF DRAWINGS
FIG. 1 shows a container having the handle or bail of the present
invention secured thereto and located in the stored position;
FIG. 2 is a view similar to FIG. 1 showing the handle in its
carrying position;
FIG. 3 is a plan view of the container handle and connecting member
in its originally formed condition;
FIG. 4 is an enlarged vertical sectional view taken along line 4--4
of FIG. 3;
FIG. 5 is an enlarged sectional view of the seam connecting the
container end to the container body and shown in its intermediate
stage prior to being crimped to the final position shown in FIG. 6;
and
FIG. 6a shows a slightly modified attaching method for the
container handle to the container.
DETAILED DESCRIPTION
While this invention is susceptible of embodiment in many different
forms, there is shown in the drawings and will herein be described
in detail one specific embodiment, with the understanding that the
present disclosure is to be considered as an exemplification of the
principles of the invention and is not intended to limit the
invention to the embodiment illustrated.
FIG. 3 of the drawing discloses a plan view of a device or
container handle and support, generally designated by the reference
numeral 10. The support 11 includes an annular member having
rectilinear side portions 12 and 14 and arcuate end portions 16 and
18. The side portions 12 and 14 and the end portions 16 and 18
cooperate to define inner and outer edges 20 and 22 respectively. A
handle or bail means 24 is formed integral with the arcuate end
portions 16 and 18. The handle or bail may be divided into a
central rectilinear section 26 which is spaced from and
substantially coextensive with the rectilinear side portion 14 with
means 26 and 28 located at opposite ends of the central rectilinear
section 26 and integral with portions of the respective arcuate end
portions 16 and 18.
An inspection of FIG. 3 shows that the integral connection between
the ends of the portions 28 and 30 and the arcuate end portions 16
and 18 extends substantially one-half of the arcuate length of the
end portions 16 and 18 and the integral connection is located
adjacent the rectilinear portion 12. Stated another way, the
substantial portion of the integral connection between the handle
24 and the support or annular member is located on one side of the
longitudinal center axis C of the annular member or band while the
handle or bail is located on the opposite side of the center axis
C.
According to one aspect of the present invention, the device 10 is
formed from a flat one-piece sheet located in a single plane and
consisting of a resilient thermoplastic material, such as
polyethylene. It should be noted that the final configuration of
the device 10 is substantially rectangular and flat in its
originally formed condition shown in FIG. 3. The configuration of
the flat undeformed device 10 substantially reduces the amount of
sheet material required for forming the handle and support.
During the formation process, it is preferable that the areas 32
and 34 located between the outer edge 22 of the connecting member
16 and the adjacent edge 36 of the handle 24 is coined at 38 and 40
to change the elastic memory of the intermediate area. This change
in elastic memory of the areas 32 and 34 increases the resistance
to tearing of the material so as to increase the tear strength of
the material in this area, which, as will hereafter be explained,
define and contribute to the hinge connection along the dotted line
portions of FIG. 3.
The handle device 10 is designed to be attached to a conventional
container 50, such as a 1 -gallon paint can. The container 50
includes a circular body portion 52 having one closed end 54 and a
rim or end 56 secured to the opposite end of the container body by
a conventional double seam 58. The end is designed to receive a
cover (not shown).
The method of attaching the handle to the container 50 contemplates
encompassing the body portion 52 with the annular member or band
11, prior to attachment of the container end or rim 56 to the upper
end of the container body 52. One edge or edge 20 of the band 11 is
located adjacent the upper end of the body 52 while the opposite
edge 22 is spaced from the associated end. Thereafter, the end 56
is placed in juxtaposed relation to the upper end of the container
body 52 and is seamed to the container body by the double seam 58
in a manner to crimp or secure at least a portion of the band,
defined by the annular member 11, between the adjacent surface of
the body 52 and the seam 58.
The finished article or container 50 with the handle 24 secured
thereto is shown in its normal condition in which the handle or
bail 24 is located below the rim 56 and in juxtaposed relation to
the container body 52. The handle 24 is adapted to be moved to a
carrying position shown in FIG. 2 wherein the handle extends above
the rim 56, as a conventional handle normally is positioned for
carrying. During such movement from the position shown in FIG. 1 to
the position shown in FIG. 2, the integral connections between the
respective end portions 28 and 30 and the end portions 16 and 18
will act as a hinge along the dotted lines, generally designated by
the reference numeral 60.
Furthermore, in its fully assembled condition shown in FIGS. 1, 2
and 6, a portion of the band, defined by the annular member 11, is
located between the upper end of the body 52 and the double seam
58. This will prevent the band from expanding sufficiently to slip
over the double seam 58 when the weight of the container is being
supported by the handle 24.
Also, as shown in FIG. 6a, a larger portion of the band 11 than
that shown in FIG. 6a may be encompassed within the double seam 58
thus providing, in addition to anchoring the band to the body 52,
an additive sealing effects within the double seam itself.
Alternatively, the entire band may be located within the double
seam so that only the handle 24 will be exposed below the seam
58.
According to a further aspect of the present invention, the opening
defined by the inner edge 20 is smaller than the peripheral
dimension of the body 52 and is substantially rectangular in its
undeformed condition shown in FIG. 3. During the deforming of the
annular or connecting member 11 from the planer position shown in
FIG. 3 to the final configuration shown in FIG. 1, the opening
defined by the inner edge 22 is enlarged to substantially the
peripheral dimension of the body 52 and will transform the annular
member to a band encircling the body and in contacting relation
with the surface of the body.
While various types of plastic material may be utilized for forming
the handle device 10, one such material is a medium density,
flexible polyethylene.
The particular handle of the present invention is very inexpensive
to manufacture because it can be formed from an inexpensive plastic
material or thin sheet, which is commercially available. Forming
the handle in the manner described above and interposing the
connection or support portion of the handle between the container
body and the seam, will still insure that the handle will not be
deformed sufficiently to slip over the rim 58.
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