U.S. patent number 3,819,083 [Application Number 05/272,589] was granted by the patent office on 1974-06-25 for safety edge easy opening container.
This patent grant is currently assigned to Continental Can Company, Inc.. Invention is credited to Albert J. Holk, Jr..
United States Patent |
3,819,083 |
Holk, Jr. |
June 25, 1974 |
SAFETY EDGE EASY OPENING CONTAINER
Abstract
An easy opening container of the full opening type having a
score line defining a removable panel portion and in which a first
folded panel is provided in the end panel and a second folded panel
is provided in the container body. The first folded panel has a
folded edge protecting the severed edge on the removable panel
after separation. The second fold band provides a protective edge
for the severed edge remaining on the container body.
Inventors: |
Holk, Jr.; Albert J.
(Frankfort, IL) |
Assignee: |
Continental Can Company, Inc.
(New York, NY)
|
Family
ID: |
23040438 |
Appl.
No.: |
05/272,589 |
Filed: |
July 17, 1972 |
Current U.S.
Class: |
220/270; 220/276;
220/712; 220/906 |
Current CPC
Class: |
B65D
17/4011 (20180101); Y10S 220/906 (20130101) |
Current International
Class: |
B65d 017/20 () |
Field of
Search: |
;220/54,48,27,90.6 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Hall; George T.
Attorney, Agent or Firm: Kowalik; John J. Kerwin; Joseph E.
Dittmann; William A.
Claims
What is claimed is:
1. A container assembly comprising a container body, an end panel
on said container, a first closed folded band means on said body
and having a folded edge facing inwardly, a second folded band
means on said panel and having a folded edge facing outwardly, said
first folded band means being in direct contact with and in
supporting relation to said second band means and a score formed in
said panel defining a removable panel portion, said score being
located radially outwardly of the inwardly facing edge so that upon
separation of said removable panel portion said inwardly facing
edge provides a protective edge for the severed edge of the score
remaining on said container and said outwardly facing score
provides a protective edge for the severed edge of score remaining
on the removable panel portion, said second folded band means
providing an abutment for preventing collapse of the body during
opening of said removable panel portion by loads imposed thereon by
associated pull tab means.
2. The invention as defined in claim 1 wherein said first folded
band is formed integrally on said container body.
3. The invention as defined in claim 2 wherein said first folded
band comprises a portion of the wall of the container body
including two superimposed layers of said container wall.
Description
BACKGROUND AND SUMMARY OF THE INVENTION
The present invention relates to easy opening containers and more
particularly to an improved easy opening container of the full
opening type. Full opening easy opening containers are
characterized by having an end panel formed with a peripheral score
formed therein which defines a disc like removable panel portion.
The severed edges of the score line along the edge of the separated
removable panel portion and the edges of the ledge remaining
attached to the container tend to be sharp and may be
hazardous.
By the present invention, it is proposed to construct the easy
opening container of the full opening type in such a manner that
the cutting edges on the container and the removable panel portion
are protected after separation of the removable panel portion
thereby to minimize the cutting hazard.
This is accomplished generally by providing the end panel on the
end closure with a fold band having a smooth folded edge facing
outwardly and the container body with another fold band and having
a smooth folded edge facing inwardly. The score line is located on
the end panel so that upon separation of the removable panel
portion, the severed edge on the latter is protected by the
outwardly facing smooth folded edge and the severed edge on the
container is protected by the smooth folded edge on the inwardly
directed fold band on the container.
BRIEF DESCRIPTION OF THE DRAWING
FIG. 1 is a fragmentary perspective view of one end of the
container embodying the structure of the present invention.
FIG. 2 is a cross-sectional view taken generally along the lines
2--2 and showing in particularly the protective edge
arrangement.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring now to the drawings, there is shown a container 10
comprising generally a container body 11 of generally cylindrical
shape. Attached to one end of the container is an easy opening end
closure 12 embodying the structure of the present invention. The
other end of the container body 11 may be closed either by an
integrally formed end or by a separately attached end closure (not
shown).
The easy opening end closure 12 is attached to the container body
as by means of a double seam 13. The end closure 12 includes a
generally upstanding chuck wall 14 extending from a panel 16. The
panel 16 is formed with an annular folded band 17 comprising an
upper layer 18 and a lower layer 19. The layers 18 and 19 are
formed by bending the panel back upon itself inwardly toward the
center of the panel 16 and again outwardly toward the circumference
of the body 11. It is to be particularly noted that the folded band
provides a turned smooth folded edge 21 facing the chuck wall
14.
For a more complete description of the manner in which the annular
folded band may be formed, reference is made to applicant's
co-pending application Ser. No. 82,260, now U.S. Pat. No.
3,696,961.
The container body 11 is formed with a second fold panel 22. As
shown, the second folded band 22 includes a pair of superimposed
layers 23 and 24 in face to face engagement and joined by a turned
smooth folded edge 25 which faces inwardly. The edges 21 and 25 of
the fold panel on the body and the folded edge on the container
body may be concentric in slightly overlapping relationship.
A peripheral score line 26 is provided in the panel 16 and defines
a removable panel portion 27 and a ledge 28. The score line 26 is
located on the panel 16 so that upon severing thereof and
separation of the removable panel portion 27 from the panel 16, the
folded edge 21 provides a protective edge for the cut or severed
edge on the removable panel portion 27. The folded edge 25 at the
same time also projects outwardly a sufficient distance beyond the
cut edge along the ledge 28 to minimize contact with the severed
edge. It is to be noted that the folded band 22 on the body 11 is
located in closed proximity to the ledge 28 and tends to impart
support thereto.
To separate the removable panel portion 27 along the score, a pull
tab 29 is attached to the removable panel portion in the moreorless
conventional manner. For a more detail description of the pull tab
arrangement, reference is made to U.S. Pat. Nos. 3,322,296 and
3,366,270, both assigned to the assignee of the present invention.
Separation of the removable panel portion is accomplished in the
same manner as described in the aforementioned application.
* * * * *