CA2116409A1 - Closure lid and container - Google Patents
Closure lid and containerInfo
- Publication number
- CA2116409A1 CA2116409A1 CA 2116409 CA2116409A CA2116409A1 CA 2116409 A1 CA2116409 A1 CA 2116409A1 CA 2116409 CA2116409 CA 2116409 CA 2116409 A CA2116409 A CA 2116409A CA 2116409 A1 CA2116409 A1 CA 2116409A1
- Authority
- CA
- Canada
- Prior art keywords
- lid
- container
- mouth
- flat flange
- weakened line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 239000012815 thermoplastic material Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 229920008790 Amorphous Polyethylene terephthalate Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 210000005224 forefinger Anatomy 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003856 thermoforming Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Landscapes
- Closures For Containers (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
The present invention relates to a combination closure lid and container which includes a container having a bottom, at least one side wall and a mouth around the top of the wall.
Extending outwardly about the mouth is a flat flange. Extending just beyond the outer edge of the flange and about the container is a trough. The top outer wall of the trough joins with an outwardly protruding lip so as to produce a peripheral undercut region at the point of joinder. The innermost reach of the undercut is located at least approximately in the plane of said flat flange. A lid forms the closure for the mouth of the container and it conforms to (1) the undercut region, (2) the trough and (3) the flat flange. The lid has a circumferential pre-weakened line located in the region of the lid just above the flat flange when the lid is in place on the container. The lid also has an integral lift flap located above the flat flange in communication with the pre-weakened line. The container and lid is dimensioned so that the lid will close the container by conformingly engaging the undercut region and the container can be uncovered by accessing the lift flap, pulling it up to at least partially sever the lid at said pre-weakened line.
The present invention relates to a combination closure lid and container which includes a container having a bottom, at least one side wall and a mouth around the top of the wall.
Extending outwardly about the mouth is a flat flange. Extending just beyond the outer edge of the flange and about the container is a trough. The top outer wall of the trough joins with an outwardly protruding lip so as to produce a peripheral undercut region at the point of joinder. The innermost reach of the undercut is located at least approximately in the plane of said flat flange. A lid forms the closure for the mouth of the container and it conforms to (1) the undercut region, (2) the trough and (3) the flat flange. The lid has a circumferential pre-weakened line located in the region of the lid just above the flat flange when the lid is in place on the container. The lid also has an integral lift flap located above the flat flange in communication with the pre-weakened line. The container and lid is dimensioned so that the lid will close the container by conformingly engaging the undercut region and the container can be uncovered by accessing the lift flap, pulling it up to at least partially sever the lid at said pre-weakened line.
Description
F-6979-L(SGC) 2 ~
,,, ,'i3A CLOSURE LID AND CONTAINER
FIELD OF THE INVENTION
The present invention pertains to the combination of a iclosure lid and container, particularly a container which is ~',5 tamper resistant.
BACKG~QUND OF THE INVENTION
There is a continuing need for low-cost, attractive plastic containers, particularly thermoplastic containers. These ~`containers are of the type that can be used for all types of ~;i10 products, e.g., food, non food solids and semisolids, etc.
It is an object of the present invention to provide a novel combination of a lid closure and container which permits visual inspection of the contents and is tamper resistant~
~jSUMMARY OF THE INVENTION
The present invention relates to, in combination, a closure j lid and a container. The container comprises a bottom having at least one side wall and mouth around the top of the wall.
Extending outwardly about the mouth is a flat flange. Extending ~l just beyond the outer edge of the flange and about the container `j20 is a trough. The top outer wall of the trough joins with an outwardly protruding lip so as to produce a peripheral undercut region at the joinder of the trough and the lip. For closing the container there is a lid, the outer periphery of which -'iconforms to (1) theundercut region, (2) the trough and (3) the 25 flat flange. The lid has a circumferential pre-weakened line located in the region of the lid just above the flat flange when the lid is in place on the container. The outer periphery of the lid also includes an integral pull tab extending therefrom.
The flat flange of the lid includes a pre-weakened line adjacent 30 said tab and extends from the periphery of said lid in a line normal to said circumferential pre-weakened line. The container and lid must be dimensioned so that the lid will close the container by conformingly engaging the undercut region. The container can be uncovered by pulling the tab so that the pre-35 weakened lines are severed and the tab and a peripheral strip s will be separated from the lid;
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F-6979-L(SGC) :~' BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a perspective view of the container and lid combination;
Figure 2 is a partial cross-section of the lid and 5 container mouth taken on the llne 2-2 of Flgure 1; and igure 3 is a plan view of a part of the lid of the present invention.
~-i DETAILED DESCRIPTION OF THE INVENTION
The lid and containers of the present invention can be made lO of any thermoplastic material which can either be injection molded or thermoformed. In thermoforming the structure, cooperating male and female dies impose the corresponding structure in the softened thermoplastic material.
Any thermoplastic material can be employed. A particularly 15 preferred material is amorphous polyethylene terephthalate film in its transparent form. Other materials include nylon, I polyolefins, polyvinyl chloride, polystyrene etc. Filler j pigments can be employed to render the containers opaque.
- Referring to the drawings herein, there is shown a 20 combination 10 of a closure lid and container. The container 12 has a container bottom 16 and at least one container side wall 18. There is a container mouth 20 near the top of wall 18.
Extending outwardly about the mouth is a flat flange 22 and extending therefrom, just beyond the outer edge of the flange, ~ 25 is a trough 24. The top outer wall of the trough joins with an outwardly protruding lip 26 so as to produce a peripheral undercut region 28 located at least approximately in the plane of flat flange 22.
The container is closed with a lid 14. The outer periphery -~ 30 of lid 14 conforms to (1) the undercut region, (2) trough 24 and ' (3) the flat flange 22. This conforming shape 24' of the -~ periphery of the lid will permit it to be snapped into contact with this portion of the container. The lid has a circumferential pre-weakened line 32 located in the region of 35 lid 14 just above flat flange 22 when the lid is in place on the --, container. The lid also has an integral pull flap 25 located ~ at some point on the periphery of the lid as shown in Figs. l ':i ,~
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and 2. This tab or flap 25 can be any size to accommodate ` pulling with the thumb and forefinger. Adjacent to this tab is ~ another pre-weakened line 27 which extends from the outer edge ; of the lid normal to prs-weakened line 32.
~. .
~ 5 The container and the lid are dimensioned so that the lid :i ~
will close the container by conformingly engaging the undercut region 28 and will strongly resist being removed from this position. During closure, pull tab 25 rotates about 180 to be ~ positioned against the top of the lid. The container is opened ^, 10 by pulling up on pull tab 25 so that the pre-weakened lines 27 1 and 32 are severed and the outer trough 24' and flange 22' are - removed leaving the lid free to be removed.
~-~ A preferred shape bf the container and lid is that it is ' at least generally circular. Other shapes such as square, ~' 15 triangular, etc. are contemplated. The pre-weakened lines 27 `3 and 32 can be formed by lines of perforations or by a narrowing ; of the thickness dimension of the lid. The length of the f diameter of the container from one point of the undercut region ' to the other side thereof should be at least approximately the 20 same as that of the diameter of the lid so that a close fit between the two is achieved upon closure. This will permit the lid to be snapped in place into the undercut region so securely that the force needed to pull upward on the integral lift flap will tear open the pre-weakened lines instead of dislodging the 25 lid at its periphery. A lift tab 40 is located in the periphery of the freed lid to assist in removal. Both the lid and the . container have contacting step regions 36, 38, 36' and 38' about the lid and just below the mouth of the container respectively.
These contacting steps assist, in combination with one another 30 and with other conforming parts, in providing a tightly closed container. The lid and container combination is more of a tamper resistant container than it is a tamper evident container.
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F-6979-L(SGC) 21 ~
Although the present invention has been described above by ~` reference to preferred embodiments, it will be appreciated that : other constructions may be devised, which are, nevertheless, within the scope and spirit of the inventio:n and are defined by 5 the claims appended hereto.
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,,, ,'i3A CLOSURE LID AND CONTAINER
FIELD OF THE INVENTION
The present invention pertains to the combination of a iclosure lid and container, particularly a container which is ~',5 tamper resistant.
BACKG~QUND OF THE INVENTION
There is a continuing need for low-cost, attractive plastic containers, particularly thermoplastic containers. These ~`containers are of the type that can be used for all types of ~;i10 products, e.g., food, non food solids and semisolids, etc.
It is an object of the present invention to provide a novel combination of a lid closure and container which permits visual inspection of the contents and is tamper resistant~
~jSUMMARY OF THE INVENTION
The present invention relates to, in combination, a closure j lid and a container. The container comprises a bottom having at least one side wall and mouth around the top of the wall.
Extending outwardly about the mouth is a flat flange. Extending ~l just beyond the outer edge of the flange and about the container `j20 is a trough. The top outer wall of the trough joins with an outwardly protruding lip so as to produce a peripheral undercut region at the joinder of the trough and the lip. For closing the container there is a lid, the outer periphery of which -'iconforms to (1) theundercut region, (2) the trough and (3) the 25 flat flange. The lid has a circumferential pre-weakened line located in the region of the lid just above the flat flange when the lid is in place on the container. The outer periphery of the lid also includes an integral pull tab extending therefrom.
The flat flange of the lid includes a pre-weakened line adjacent 30 said tab and extends from the periphery of said lid in a line normal to said circumferential pre-weakened line. The container and lid must be dimensioned so that the lid will close the container by conformingly engaging the undercut region. The container can be uncovered by pulling the tab so that the pre-35 weakened lines are severed and the tab and a peripheral strip s will be separated from the lid;
;~
,~
,. . . I
. ,-. ~ . . .
F-6979-L(SGC) :~' BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a perspective view of the container and lid combination;
Figure 2 is a partial cross-section of the lid and 5 container mouth taken on the llne 2-2 of Flgure 1; and igure 3 is a plan view of a part of the lid of the present invention.
~-i DETAILED DESCRIPTION OF THE INVENTION
The lid and containers of the present invention can be made lO of any thermoplastic material which can either be injection molded or thermoformed. In thermoforming the structure, cooperating male and female dies impose the corresponding structure in the softened thermoplastic material.
Any thermoplastic material can be employed. A particularly 15 preferred material is amorphous polyethylene terephthalate film in its transparent form. Other materials include nylon, I polyolefins, polyvinyl chloride, polystyrene etc. Filler j pigments can be employed to render the containers opaque.
- Referring to the drawings herein, there is shown a 20 combination 10 of a closure lid and container. The container 12 has a container bottom 16 and at least one container side wall 18. There is a container mouth 20 near the top of wall 18.
Extending outwardly about the mouth is a flat flange 22 and extending therefrom, just beyond the outer edge of the flange, ~ 25 is a trough 24. The top outer wall of the trough joins with an outwardly protruding lip 26 so as to produce a peripheral undercut region 28 located at least approximately in the plane of flat flange 22.
The container is closed with a lid 14. The outer periphery -~ 30 of lid 14 conforms to (1) the undercut region, (2) trough 24 and ' (3) the flat flange 22. This conforming shape 24' of the -~ periphery of the lid will permit it to be snapped into contact with this portion of the container. The lid has a circumferential pre-weakened line 32 located in the region of 35 lid 14 just above flat flange 22 when the lid is in place on the --, container. The lid also has an integral pull flap 25 located ~ at some point on the periphery of the lid as shown in Figs. l ':i ,~
.. ~: . . : . ' :
: ., .: . .. : . ~ ~
-,. ~ , : : . ~ :
`::
:
A'. ~ F-6979-L(SGC) 2~1~4~
~ -- 3 .'~
and 2. This tab or flap 25 can be any size to accommodate ` pulling with the thumb and forefinger. Adjacent to this tab is ~ another pre-weakened line 27 which extends from the outer edge ; of the lid normal to prs-weakened line 32.
~. .
~ 5 The container and the lid are dimensioned so that the lid :i ~
will close the container by conformingly engaging the undercut region 28 and will strongly resist being removed from this position. During closure, pull tab 25 rotates about 180 to be ~ positioned against the top of the lid. The container is opened ^, 10 by pulling up on pull tab 25 so that the pre-weakened lines 27 1 and 32 are severed and the outer trough 24' and flange 22' are - removed leaving the lid free to be removed.
~-~ A preferred shape bf the container and lid is that it is ' at least generally circular. Other shapes such as square, ~' 15 triangular, etc. are contemplated. The pre-weakened lines 27 `3 and 32 can be formed by lines of perforations or by a narrowing ; of the thickness dimension of the lid. The length of the f diameter of the container from one point of the undercut region ' to the other side thereof should be at least approximately the 20 same as that of the diameter of the lid so that a close fit between the two is achieved upon closure. This will permit the lid to be snapped in place into the undercut region so securely that the force needed to pull upward on the integral lift flap will tear open the pre-weakened lines instead of dislodging the 25 lid at its periphery. A lift tab 40 is located in the periphery of the freed lid to assist in removal. Both the lid and the . container have contacting step regions 36, 38, 36' and 38' about the lid and just below the mouth of the container respectively.
These contacting steps assist, in combination with one another 30 and with other conforming parts, in providing a tightly closed container. The lid and container combination is more of a tamper resistant container than it is a tamper evident container.
~ 35 .~J
,. ~
. -'; .
,~
,, ,J;~ .
F-6979-L(SGC) 21 ~
Although the present invention has been described above by ~` reference to preferred embodiments, it will be appreciated that : other constructions may be devised, which are, nevertheless, within the scope and spirit of the inventio:n and are defined by 5 the claims appended hereto.
" ~
, . .
.`:1 10 ~.
, .. .
: 15 ''!' .1 .
......
`.. `1 20 ?
'.:1 -~1 .-`? 25 ' ?
. ;.!
.~ 30 ~"~
.-:3 ~ 35 .
~- .
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Claims (6)
1. In combination a closure lid and a container comprising:
(a) a container having a bottom, at least one side wall and a mouth around the top of said wall; extending outwardly about said mouth is a flat flange; extending just beyond the outer edge of said flange and about said container is a trough, the top outer wall of said trough joins with an outwardly protruding lip so as to produce a peripheral undercut region at the joinder;
(b) a lid forming a closure for the mouth of said container, the outer periphery of said lid conforming to (1) said undercut region, (2) said trough and (3) said flat flange;
said lid having a circumferential pre-weakened line located in the region of the lid just above the flat flange of said container when the lid is in place on the container; the outer periphery of said lid including an integral flat pull tab extending therefrom, the flat flange of said lid also including a pre-weakened line adjacent to said tab and extending from the periphery of said lid in a line normal to said circumferential pre-weakened line; and (c) said container and lid being dimensioned so that said lid will close said container by conformingly engaging said undercut region and said container lid can be freed by pulling on said tab so as to sever the pre-weakened line thereby removing the portion of said lid conforming to said (1), (2) and (3).
(a) a container having a bottom, at least one side wall and a mouth around the top of said wall; extending outwardly about said mouth is a flat flange; extending just beyond the outer edge of said flange and about said container is a trough, the top outer wall of said trough joins with an outwardly protruding lip so as to produce a peripheral undercut region at the joinder;
(b) a lid forming a closure for the mouth of said container, the outer periphery of said lid conforming to (1) said undercut region, (2) said trough and (3) said flat flange;
said lid having a circumferential pre-weakened line located in the region of the lid just above the flat flange of said container when the lid is in place on the container; the outer periphery of said lid including an integral flat pull tab extending therefrom, the flat flange of said lid also including a pre-weakened line adjacent to said tab and extending from the periphery of said lid in a line normal to said circumferential pre-weakened line; and (c) said container and lid being dimensioned so that said lid will close said container by conformingly engaging said undercut region and said container lid can be freed by pulling on said tab so as to sever the pre-weakened line thereby removing the portion of said lid conforming to said (1), (2) and (3).
2. The container of claim 1 where in both the container mouth and lid are at least generally circular.
3. The container of claim 1 wherein said pre-weakened line is a line of perforations.
4. The container of claim 1 wherein the diameter of said undercut region from one side of said container to the other is at least approximately the same as that of said lid so that a close fit between the same is achieved upon closure.
5. The container of claim 1 wherein said lid includes an integral lift flap as an extension of the periphery of the severed lid.
6. The container of claim 1 having contacting, conforming step regions about the lid and just below the mouth of the container.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US2344893A | 1993-02-26 | 1993-02-26 | |
| US08/023,448 | 1993-02-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2116409A1 true CA2116409A1 (en) | 1994-08-27 |
Family
ID=21815175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2116409 Abandoned CA2116409A1 (en) | 1993-02-26 | 1994-02-24 | Closure lid and container |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2116409A1 (en) |
-
1994
- 1994-02-24 CA CA 2116409 patent/CA2116409A1/en not_active Abandoned
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |