CA2116406A1 - Closure lid and container - Google Patents
Closure lid and containerInfo
- Publication number
- CA2116406A1 CA2116406A1 CA 2116406 CA2116406A CA2116406A1 CA 2116406 A1 CA2116406 A1 CA 2116406A1 CA 2116406 CA2116406 CA 2116406 CA 2116406 A CA2116406 A CA 2116406A CA 2116406 A1 CA2116406 A1 CA 2116406A1
- Authority
- CA
- Canada
- Prior art keywords
- container
- lid
- mouth
- flat flange
- trough
- 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
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-6977-L(SGC) 2 ~
( A CLOSURE LID AND CONTAINER
.:
)The present invention pertains to the combination of a - closure lid and container, particularly a container which is tamper resistant.
' .
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 ' products e.g., food, non food solids and semi-solids, 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. It is another object to present a container which is tamper resistant.
The present invention relates to, in combination, a closure 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 25 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 joinder of the trough and the lip. For closing the container there is a lid, the outer periphery of which 30 conforms to (1) the undercut region, (2) the trough and (3) the flat flange. Thelid 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 i :~ integral lift flap located above the flat flange and in 35 communication with the pre-weakened line. The container and lid must be dimensioned so that the lid will close the container by conformingly engaging the undercut region and the container can :J ~ "~' ~ ""-,"'','~'", ,~' ~ ' ; ;
F-6977-L(SGC) 2 I ~ 6 ~ ~ ~
~Al be uncovered by accessing the lift flap, pulling it up to at least partially sever the lid at the pre-weakened line.
:
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a perspective view of the container and lid com ~ nation;
Figure 2 is a partial cross-section of the lid and ~ container mouth taken on the line 2-2 of 'Figure 1; and - Figure 3 is a plan view of a part of the lid of the present 10 invention.
, .
~i DETAILED bEscRIpTIoN OF THE INVENTION
j The lid and containers of the present invention can be made of any thermoplastic material which can either be injection ~ 15 molded or thermoformed. In thermoforming the structure, ;, cooperating male and female dies impose the corresponding l structure in the softened thermoplastic material.
:3 Any thermoplastic material can be employed. A particularly preferred material is amorphous polyethylene terephthalate film ~ 20 in its transparent form. Other materials include nylon, ¦ polyolefins, polyvinyl chloride, polystyrene etc. Filler pigments can be employed to render the containers opaque if ~i desired.
Referring to the drawings herein, there is shown a 25 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, 30 is a trough 24. The top outer w~ll 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.
7 The container is closed with a lid 14. The outer periphery 35 of lid 14 conforms to (l) the undercut region, (2) trough 24 and - - ~3) the flat flange 22. This conforming shape of the periphery of the lid will permit it to be snapped into oontact witb this ~ F-6977-L(SGC) 211~ 4 ~ ~
; - 3 -portion of the container. The lid has a circumferential pre-weakened line 32 located in the region of lid 14 just above flat flange 22 when the lid is in place on the container. The lid also has an integral lift flap 34 located above flat flange 14 -~ 5 and in communication with t~ie pre-weakened line 32. The contrainer and the lid are dimensioned so that the lid will close the container by conformingly engaging the undercut region 28 and will strongly resisk being removed from this position. Both the lid and the container have contactiny step regions 36, 38, l 10 36' and 38' about the lid and just below the mouth of the -l container respectively. These contacting steps assist, in combination with the other conforming parts o~ the lid and ~, container, in providing a tightly closed container.
The container is opened by pulling up on the integral lift -3 15 flap so that the pre-weakened line 32 is severed either `~ partially or completely about the interior of the periphery of ¦ lid 14.
A preferred shape of the container and lid is that it is at least generally circular. The combination structure will 20 also function if the container and lid structure is oval, ;~, ~,'r, square, rectangular, triangular, etc. The pre-weakened line 32 can be formed by a line of perforations or by a narrowing of the thickness dimension at a line about the lid inwardly spaced from -~i the periphery thereof. The length of the diameter of the ~ 25 container from one point of the undercut region to the other `~ side thereof should be at least approximately the 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 30 force needed to pull upward on the integral lift flap will tear open the pre-weakened line instead of dislodging the lid at its periphery. When the lid is completely removed in this manner the outer periphery of the lid remains in place as a ring, including trough 24' in contact with the undercut region. In 35 this regard the lid and container combination is more of a tamper resistant container than it is a tamper evident container.
J~
.
.F-6977-L~SGC) 21 : - 4 -:.
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 invention and are defined by . 5 the claims appended hereto.
.
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( A CLOSURE LID AND CONTAINER
.:
)The present invention pertains to the combination of a - closure lid and container, particularly a container which is tamper resistant.
' .
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 ' products e.g., food, non food solids and semi-solids, 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. It is another object to present a container which is tamper resistant.
The present invention relates to, in combination, a closure 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 25 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 joinder of the trough and the lip. For closing the container there is a lid, the outer periphery of which 30 conforms to (1) the undercut region, (2) the trough and (3) the flat flange. Thelid 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 i :~ integral lift flap located above the flat flange and in 35 communication with the pre-weakened line. The container and lid must be dimensioned so that the lid will close the container by conformingly engaging the undercut region and the container can :J ~ "~' ~ ""-,"'','~'", ,~' ~ ' ; ;
F-6977-L(SGC) 2 I ~ 6 ~ ~ ~
~Al be uncovered by accessing the lift flap, pulling it up to at least partially sever the lid at the pre-weakened line.
:
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a perspective view of the container and lid com ~ nation;
Figure 2 is a partial cross-section of the lid and ~ container mouth taken on the line 2-2 of 'Figure 1; and - Figure 3 is a plan view of a part of the lid of the present 10 invention.
, .
~i DETAILED bEscRIpTIoN OF THE INVENTION
j The lid and containers of the present invention can be made of any thermoplastic material which can either be injection ~ 15 molded or thermoformed. In thermoforming the structure, ;, cooperating male and female dies impose the corresponding l structure in the softened thermoplastic material.
:3 Any thermoplastic material can be employed. A particularly preferred material is amorphous polyethylene terephthalate film ~ 20 in its transparent form. Other materials include nylon, ¦ polyolefins, polyvinyl chloride, polystyrene etc. Filler pigments can be employed to render the containers opaque if ~i desired.
Referring to the drawings herein, there is shown a 25 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, 30 is a trough 24. The top outer w~ll 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.
7 The container is closed with a lid 14. The outer periphery 35 of lid 14 conforms to (l) the undercut region, (2) trough 24 and - - ~3) the flat flange 22. This conforming shape of the periphery of the lid will permit it to be snapped into oontact witb this ~ F-6977-L(SGC) 211~ 4 ~ ~
; - 3 -portion of the container. The lid has a circumferential pre-weakened line 32 located in the region of lid 14 just above flat flange 22 when the lid is in place on the container. The lid also has an integral lift flap 34 located above flat flange 14 -~ 5 and in communication with t~ie pre-weakened line 32. The contrainer and the lid are dimensioned so that the lid will close the container by conformingly engaging the undercut region 28 and will strongly resisk being removed from this position. Both the lid and the container have contactiny step regions 36, 38, l 10 36' and 38' about the lid and just below the mouth of the -l container respectively. These contacting steps assist, in combination with the other conforming parts o~ the lid and ~, container, in providing a tightly closed container.
The container is opened by pulling up on the integral lift -3 15 flap so that the pre-weakened line 32 is severed either `~ partially or completely about the interior of the periphery of ¦ lid 14.
A preferred shape of the container and lid is that it is at least generally circular. The combination structure will 20 also function if the container and lid structure is oval, ;~, ~,'r, square, rectangular, triangular, etc. The pre-weakened line 32 can be formed by a line of perforations or by a narrowing of the thickness dimension at a line about the lid inwardly spaced from -~i the periphery thereof. The length of the diameter of the ~ 25 container from one point of the undercut region to the other `~ side thereof should be at least approximately the 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 30 force needed to pull upward on the integral lift flap will tear open the pre-weakened line instead of dislodging the lid at its periphery. When the lid is completely removed in this manner the outer periphery of the lid remains in place as a ring, including trough 24' in contact with the undercut region. In 35 this regard the lid and container combination is more of a tamper resistant container than it is a tamper evident container.
J~
.
.F-6977-L~SGC) 21 : - 4 -:.
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 invention and are defined by . 5 the claims appended hereto.
.
.
., `
.!
J
~i , ;
,, ' :
;,; .
,J~
''`"I
.~ ::' . ~
.
'_ `~' ~ ~, :
' ~' I
. .
'y`". ~ . ' ' ~ ' ' ' ' ; ' ` ' '` : '
Claims (5)
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; said lid having an integral lift flap located above said flat flange in communication with said 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 can be uncovered by accessing said lift flap, pulling it up to at least partially sever the lid at said pre-weakened line.
(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; said lid having an integral lift flap located above said flat flange in communication with said 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 can be uncovered by accessing said lift flap, pulling it up to at least partially sever the lid at said pre-weakened line.
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 circular 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 if said lid so that a close fit between the same is achieved upon closure.
5. The container of claim 1 wherein there are contacting step regions about the lid and just below the mouth of the container.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US2344793A | 1993-02-26 | 1993-02-26 | |
| US08/023,447 | 1993-02-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2116406A1 true CA2116406A1 (en) | 1994-08-27 |
Family
ID=21815169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2116406 Abandoned CA2116406A1 (en) | 1993-02-26 | 1994-02-24 | Closure lid and container |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2116406A1 (en) |
-
1994
- 1994-02-24 CA CA 2116406 patent/CA2116406A1/en not_active Abandoned
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |