CA2139955C - Tamper evident resealable plastic closure - Google Patents
Tamper evident resealable plastic closure Download PDFInfo
- Publication number
- CA2139955C CA2139955C CA002139955A CA2139955A CA2139955C CA 2139955 C CA2139955 C CA 2139955C CA 002139955 A CA002139955 A CA 002139955A CA 2139955 A CA2139955 A CA 2139955A CA 2139955 C CA2139955 C CA 2139955C
- Authority
- CA
- Canada
- Prior art keywords
- pour spout
- band
- tamper evident
- resealable
- cap
- 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.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D55/00—Accessories for container closures not otherwise provided for
- B65D55/02—Locking devices; Means for discouraging or indicating unauthorised opening or removal of closure
- B65D55/06—Deformable or tearable wires, strings, or strips; Use of seals, e.g. destructible locking pins
- B65D55/08—Annular elements encircling container necks
Abstract
A dual tamper indicating closure with resealable pour spout for use on plastic bottles and the like. The closure has a first annular indicator band engageable on a portion of a bottle neck secured to the closure by a plurality of frangible elements thereabout. A second annular indicator band is engageable on a secondary top on the pour spout.
The secondary cap has a opening within that selectively registers with a plug positioned above an aperture in the closure from which the pour spout extends. Movement of the secondary cap on the pour spout separates the annular indicator band from the secondary top allowing access to the pour spout.
The secondary cap has a opening within that selectively registers with a plug positioned above an aperture in the closure from which the pour spout extends. Movement of the secondary cap on the pour spout separates the annular indicator band from the secondary top allowing access to the pour spout.
Description
TAMPER EVIDENT RESEALABLE PLASTIC CLOSURE
Backcrround of the Invention Technical Field:
This device relates to tamper indicating closures for containers and the like requiring a push pull resealable tamper evident spout.
Description of Prior Art:
Prior art closures of this type may be seen in U.S.
Patents 5,104,008, 5,105,967, 4,940,003, 4,801,032, 4,589,561, 4,561,553, 4,500,016, 4,469,253, 3,902,621, 4,084,716, 4,053,007, 4,034,882, 3,980,195, 3,963,139, 3,902,921, 3,682,345, and 3,504,818.
Summary of the Invention A combination of resilient molded plastic resealable bottle cap having a top portion, an annular depending flange on said top portion, a first tamper evident thin flexible annular band on a plurality of circumferentially spaced radially outwardly extending frangible elements on said depending flange; and a resealable pour spout on said top portion, an opening in the top portion registrable with said pour spout, a closure plug in spaced relation from said top portion, a top cap movably positioned on said pour spout having an opening registering with said plug defining a resealable closure when said top cap is in a first position, a second tamper evident band having a plurality of frangible elements integrally connecting said band with said top cap in said first position, upstanding stops extending from said band in spaced relation to said top cap, and annular flange on said pour spout retaining said band in said first position when said top cap is moved away from said first portion, a plurality of circumferentially spaced elevated bridge portions extending from said first tamper evident band, with some of said frangible elements extending from said respective elevated bridge portions and from said tamper evident band between said respective elevated bridge portions interconnecting with the bottom perimeter edge of said depending annular flange, said elevated bridge portions defining areas therebetween having increased vertical spacing from said depending annular flange, a plurality of annularly spaced projections extending inwardly from said tamper evident band registrable with said container's locking annular flange, a spiral thread extend inwardly from said depending annular flange.
Description of the Drawings Figure 1 is a vertical cross-section through a portion of the resealable bottle cap with the push pull pour spout in an opened position;
Figure 2 is a vertical cross-section through a portion of the resealable bottle cap with the push pull top in a closed position;
Figure 3 is a perspective view of the resealable bottle cap;
Figure 4 is a perspective view of a portion of the resealable bottle cap;
Figure 5 is a top plan view of the resealable bottle cap;
Backcrround of the Invention Technical Field:
This device relates to tamper indicating closures for containers and the like requiring a push pull resealable tamper evident spout.
Description of Prior Art:
Prior art closures of this type may be seen in U.S.
Patents 5,104,008, 5,105,967, 4,940,003, 4,801,032, 4,589,561, 4,561,553, 4,500,016, 4,469,253, 3,902,621, 4,084,716, 4,053,007, 4,034,882, 3,980,195, 3,963,139, 3,902,921, 3,682,345, and 3,504,818.
Summary of the Invention A combination of resilient molded plastic resealable bottle cap having a top portion, an annular depending flange on said top portion, a first tamper evident thin flexible annular band on a plurality of circumferentially spaced radially outwardly extending frangible elements on said depending flange; and a resealable pour spout on said top portion, an opening in the top portion registrable with said pour spout, a closure plug in spaced relation from said top portion, a top cap movably positioned on said pour spout having an opening registering with said plug defining a resealable closure when said top cap is in a first position, a second tamper evident band having a plurality of frangible elements integrally connecting said band with said top cap in said first position, upstanding stops extending from said band in spaced relation to said top cap, and annular flange on said pour spout retaining said band in said first position when said top cap is moved away from said first portion, a plurality of circumferentially spaced elevated bridge portions extending from said first tamper evident band, with some of said frangible elements extending from said respective elevated bridge portions and from said tamper evident band between said respective elevated bridge portions interconnecting with the bottom perimeter edge of said depending annular flange, said elevated bridge portions defining areas therebetween having increased vertical spacing from said depending annular flange, a plurality of annularly spaced projections extending inwardly from said tamper evident band registrable with said container's locking annular flange, a spiral thread extend inwardly from said depending annular flange.
Description of the Drawings Figure 1 is a vertical cross-section through a portion of the resealable bottle cap with the push pull pour spout in an opened position;
Figure 2 is a vertical cross-section through a portion of the resealable bottle cap with the push pull top in a closed position;
Figure 3 is a perspective view of the resealable bottle cap;
Figure 4 is a perspective view of a portion of the resealable bottle cap;
Figure 5 is a top plan view of the resealable bottle cap;
Figure 6 is a side elevational view of the resealable bottle cap; and Figure 7 is a partial enlarged cross-sectional view of a portion of the resealable bottle cap showing the bottle -2a-~213995~
neck configuration.
Description of the Preferred Embodiment Referring to figures 1, 2 and 3 of the drawings, a resealable bottle cap 10 can be seen having a push pull secondary closure 11 thereon and comprising a top portion 12 with an integral depending annular flange 13 extending therefrom. A plurality of circumferentially spaced frangible elements 14 extend from the lower edge of the depending flange 13 to a tamper evident ring 15 integrally molded with the closure. The annular ring 15 is of the same diameter as that of the annular flange 13 of the closure and has a plurality of circumferentially spaced inwardly facing arcuate projections 16 thereon.
Referring to figures 1 and 7 of the drawings, it will be seen that the arcuate projections 16 are circumferentially spaced about the inner surface of said tamper evident ring 15 and are positioned so that they are engageable under an annular locking flange 17 on a bottle neck 18 as best seen in figure 7 of the drawings.
Referring now to figure 1 of the drawings, it will be . ~ 213995 seen that an opening 19 is formed in the center of the top portion 12 of the cap 12 with an upstanding cylindrical pour spout 20 positioned in registry with the opening 19. The upper end of the pour spout 20 having a secondary top portion 21 thereon which is apertured at 22. A plug 23 is positioned on the secondary top portion 21 in spaced relation to the aperture 22 by a plurality of circumferentially spaced angularly arranged upwardly extending legs 24. A push pull top cap 25 is positioned on the upstanding cylindrical pour spout 20 having a bottom portion 26 with a central opening 27 therein which registers with the plug 23 to form a secondary closure when the top cap 25 is in closed position as illustrated in figure 2 and resting on the secondary top portion 21 of the upstanding cylindrical pour spout 20. It will be seen that the top cap has a depending cylindrical body member 28 with a plurality of annularly spaced frangible elements 29 connected on its lower perimeter edge to a secondary tamper indicating band 30. A plurality of upstanding stops 29A are 20 positioned in spaced circumferential arrangement about the . 21399~~
tamper evident band 30 between the frangible elements 29.
The cylindrical body member 28 has a pair of vertically spaced inturned annular flanges 31 having tapered upper and lower surfaces 31A which slideably engage the outer surface of the upstanding cylindrical pour spout 20. The secondary tamper evident band 30 also has a tapered internal annular flange 32 which is slideably engaged at the exterior of the upstanding cylindrical pour spout 20. The upstanding cylindrical pour spout 20 has two outwardly extending annular flanges 33 and 34 respectively on the exterior thereof the flange 34 having a tapered top portion 34A. The flanges 31 being oppositely disposed with respect to the secondary top portion 21. The outwardly extending flange 34 positioned therebelow, above the top 12 of the cap 10 and being oppositely disposed and between the annular flanges 31 and 32 on the cylindrical body member 28 and secondary tamper evident band 30 respectively.
In assembled form as illustrated in figures 1, 2, 3 and 6 of the drawings, the secondary tamper evident band 30 joined by the frangible elements 29 to the cylindrical body 2139q~~
member 28 of the top cap 25 is escapable of moving upwardly due to the interengagement of the inturned flange 32 thereon with the outwardly extending flange 34 on the cylindrical pour spout 20 and thus the cylindrical body member 28 of the top cap 25 is escapable of vertical movement such as required to move the apertured top 26 thereabove the plug 23 until sufficient force is applied to the top cap 25 to break away the frangible elements 29 whereby the top cap 25 can move to the position illustrated in figure 1 of the drawings wherein the opening 27 therein moves upwardly and away from the plug 23. The inturned annular flanges 31 on the cylindrical body member 28 cannot move above the outwardly extending annular flange 33 on the upstanding cylindrical pour spout 20 so that the top cap 25 cannot be removed therefrom. The upstanding stops 29A prevent compression and premature breakage of the frangible elements 29 prior to intended use.
Referring to figures 1, 2, 3 and 6 of the drawings, the tamper evident band 15 has a plurality of circumferentially spaced elevated areas 35 each of said elevated areas 35 positioned between said respective frangible elements 14 hereinbefore described. The elevated areas 35 extend from the tamper evident band 15 in spaced relation to the lower edge of the depending annular flange 13 of the resealable bottle cap 10 and provide selective support of the tamper evident band 15 to resist vertical movement imparted by the deflection of the tamper evident band 15 during insertion on the bottle neck 18 protecting the frangible elements 14 during assembly.
The elevated areas 35 also serve to protect the frangible elements 14 during the molding process (not shown) in the same manner as is well known to those skilled in the art.
Referring back to figures 1, 2, and 7 of the drawings, the depending annular flange 13 has a inwardly extending spiral thread 36 from its interior annular surface 13A
extending about a portion of the interior annular surface 13A terminating adjacent the top perimeter edge of said annular depending skirt 13 at 13B. The spiral thread 36 is registerable with a spiral thread 37 extending outwardly _7_ from the exterior of the neck portion 18, best seen in figure 7 of the drawings. Referring back to figures 1 and 2 of the drawings, the relative positioning of the spiral thread 36 and the projections 16 on the annular band 15 can be seen to be in a circumferentially spaced overlapping relationship imparting offsetting points of engagement with the respective registering counter parts of the locking annular flange 17 on the bottle neck 18.
A first annular depending sealing flange 38 extends downwardly from the closure top portion 12 in spaced relation to the depending annular skirt 13. A second sealing flange extends angularly inwardly from said top portion 12 adjacent said first sealing flange 38 defining a multiple sealing configuration against the neck portion 18 of the bottle during use.
Referring to figure 6 of the drawings, the push pull closure 10 may be seen in assembled condition as hereinbefore described in figures 1 and 2 illustrating an outside rib surface 40 on the depending annular flange 13.
To remove the push pull closure cap 10 from the bottle _g_ 2I399~~
neck 18, a counter-clockwise rotation of the cap 10 is required which will accordingly engage the respective registering spiral threads 36 and 37 moving the push pull closure 10 upwardly, breaking the frangible elements 14 connecting the tamper evident ring 16 to the cap's depending annular flange 13 leaving the tamper evident ring 16 on the neck portion 18 below the locking flange 17 as will be well understood by those skilled in the art.
Thus, it will be seen that an improvement in a resealable bottle cap of the invention with a push pull closure and threaded tamper evident flexible plastic closure has been illustrated and described and it will be apparent to those skilled in the art that various changes and modifications may be made thereto without departing from the spirit of the invention.
Therefore I claim:
_g_
neck configuration.
Description of the Preferred Embodiment Referring to figures 1, 2 and 3 of the drawings, a resealable bottle cap 10 can be seen having a push pull secondary closure 11 thereon and comprising a top portion 12 with an integral depending annular flange 13 extending therefrom. A plurality of circumferentially spaced frangible elements 14 extend from the lower edge of the depending flange 13 to a tamper evident ring 15 integrally molded with the closure. The annular ring 15 is of the same diameter as that of the annular flange 13 of the closure and has a plurality of circumferentially spaced inwardly facing arcuate projections 16 thereon.
Referring to figures 1 and 7 of the drawings, it will be seen that the arcuate projections 16 are circumferentially spaced about the inner surface of said tamper evident ring 15 and are positioned so that they are engageable under an annular locking flange 17 on a bottle neck 18 as best seen in figure 7 of the drawings.
Referring now to figure 1 of the drawings, it will be . ~ 213995 seen that an opening 19 is formed in the center of the top portion 12 of the cap 12 with an upstanding cylindrical pour spout 20 positioned in registry with the opening 19. The upper end of the pour spout 20 having a secondary top portion 21 thereon which is apertured at 22. A plug 23 is positioned on the secondary top portion 21 in spaced relation to the aperture 22 by a plurality of circumferentially spaced angularly arranged upwardly extending legs 24. A push pull top cap 25 is positioned on the upstanding cylindrical pour spout 20 having a bottom portion 26 with a central opening 27 therein which registers with the plug 23 to form a secondary closure when the top cap 25 is in closed position as illustrated in figure 2 and resting on the secondary top portion 21 of the upstanding cylindrical pour spout 20. It will be seen that the top cap has a depending cylindrical body member 28 with a plurality of annularly spaced frangible elements 29 connected on its lower perimeter edge to a secondary tamper indicating band 30. A plurality of upstanding stops 29A are 20 positioned in spaced circumferential arrangement about the . 21399~~
tamper evident band 30 between the frangible elements 29.
The cylindrical body member 28 has a pair of vertically spaced inturned annular flanges 31 having tapered upper and lower surfaces 31A which slideably engage the outer surface of the upstanding cylindrical pour spout 20. The secondary tamper evident band 30 also has a tapered internal annular flange 32 which is slideably engaged at the exterior of the upstanding cylindrical pour spout 20. The upstanding cylindrical pour spout 20 has two outwardly extending annular flanges 33 and 34 respectively on the exterior thereof the flange 34 having a tapered top portion 34A. The flanges 31 being oppositely disposed with respect to the secondary top portion 21. The outwardly extending flange 34 positioned therebelow, above the top 12 of the cap 10 and being oppositely disposed and between the annular flanges 31 and 32 on the cylindrical body member 28 and secondary tamper evident band 30 respectively.
In assembled form as illustrated in figures 1, 2, 3 and 6 of the drawings, the secondary tamper evident band 30 joined by the frangible elements 29 to the cylindrical body 2139q~~
member 28 of the top cap 25 is escapable of moving upwardly due to the interengagement of the inturned flange 32 thereon with the outwardly extending flange 34 on the cylindrical pour spout 20 and thus the cylindrical body member 28 of the top cap 25 is escapable of vertical movement such as required to move the apertured top 26 thereabove the plug 23 until sufficient force is applied to the top cap 25 to break away the frangible elements 29 whereby the top cap 25 can move to the position illustrated in figure 1 of the drawings wherein the opening 27 therein moves upwardly and away from the plug 23. The inturned annular flanges 31 on the cylindrical body member 28 cannot move above the outwardly extending annular flange 33 on the upstanding cylindrical pour spout 20 so that the top cap 25 cannot be removed therefrom. The upstanding stops 29A prevent compression and premature breakage of the frangible elements 29 prior to intended use.
Referring to figures 1, 2, 3 and 6 of the drawings, the tamper evident band 15 has a plurality of circumferentially spaced elevated areas 35 each of said elevated areas 35 positioned between said respective frangible elements 14 hereinbefore described. The elevated areas 35 extend from the tamper evident band 15 in spaced relation to the lower edge of the depending annular flange 13 of the resealable bottle cap 10 and provide selective support of the tamper evident band 15 to resist vertical movement imparted by the deflection of the tamper evident band 15 during insertion on the bottle neck 18 protecting the frangible elements 14 during assembly.
The elevated areas 35 also serve to protect the frangible elements 14 during the molding process (not shown) in the same manner as is well known to those skilled in the art.
Referring back to figures 1, 2, and 7 of the drawings, the depending annular flange 13 has a inwardly extending spiral thread 36 from its interior annular surface 13A
extending about a portion of the interior annular surface 13A terminating adjacent the top perimeter edge of said annular depending skirt 13 at 13B. The spiral thread 36 is registerable with a spiral thread 37 extending outwardly _7_ from the exterior of the neck portion 18, best seen in figure 7 of the drawings. Referring back to figures 1 and 2 of the drawings, the relative positioning of the spiral thread 36 and the projections 16 on the annular band 15 can be seen to be in a circumferentially spaced overlapping relationship imparting offsetting points of engagement with the respective registering counter parts of the locking annular flange 17 on the bottle neck 18.
A first annular depending sealing flange 38 extends downwardly from the closure top portion 12 in spaced relation to the depending annular skirt 13. A second sealing flange extends angularly inwardly from said top portion 12 adjacent said first sealing flange 38 defining a multiple sealing configuration against the neck portion 18 of the bottle during use.
Referring to figure 6 of the drawings, the push pull closure 10 may be seen in assembled condition as hereinbefore described in figures 1 and 2 illustrating an outside rib surface 40 on the depending annular flange 13.
To remove the push pull closure cap 10 from the bottle _g_ 2I399~~
neck 18, a counter-clockwise rotation of the cap 10 is required which will accordingly engage the respective registering spiral threads 36 and 37 moving the push pull closure 10 upwardly, breaking the frangible elements 14 connecting the tamper evident ring 16 to the cap's depending annular flange 13 leaving the tamper evident ring 16 on the neck portion 18 below the locking flange 17 as will be well understood by those skilled in the art.
Thus, it will be seen that an improvement in a resealable bottle cap of the invention with a push pull closure and threaded tamper evident flexible plastic closure has been illustrated and described and it will be apparent to those skilled in the art that various changes and modifications may be made thereto without departing from the spirit of the invention.
Therefore I claim:
_g_
Claims (4)
1. A combination of resilient molded plastic resealable bottle cap having a top portion, an annular depending flange on said top portion, a first tamper evident thin flexible annular band on a plurality of circumferentially spaced radially outwardly extending frangible elements on said depending flange; and a resealable pour spout on said top portion, an opening in the top portion registrable with said pour spout, a closure plug in spaced relation from said top portion, a top cap movably positioned on said pour spout having an opening registering with said plug defining a resealable closure when said top cap is in a first position, a second tamper evident band having a plurality of frangible elements integrally connecting said band with said top cap in said first position, upstanding stops extending from said band in spaced relation to said top cap, and annular flange on said pour spout retaining said band in said first position when said top cap is moved away from said first portion, a plurality of circumferentially spaced elevated bridge portions extending from said first tamper evident band, with some of said frangible elements extending from said respective elevated bridge portions and from said tamper evident band between said respective elevated bridge portions interconnecting with the bottom perimeter edge of said depending annular flange, said elevated bridge portions defining areas therebetween having increased vertical spacing from said depending annular flange, a plurality of annularly spaced projections extending inwardly from said tamper evident band registrable with said container's locking annular flange, a spiral thread extend inwardly from said depending annular flange.
2. The combination of resealable resilient molded plastic bottle cap in claim 1 wherein said closure plug has a plurality of circumferentially spaced legs extending therefrom to said secondary top portion about said opening in said top, registrable with said opening in said top cap.
3. The combination of a resealable resilient plastic bottle cap in claim 1 wherein said upstanding pour spout has a tubular body of a known outer diameter, and said top cap has a cylindrical body, the inner diameter of which is greater than that of said outer diameter of said tubular body.
4. The combination of a resealable resilient plastic bottle cap in claim 1 wherein said spiral thread on said depending annular flange is engageable on a spiral thread on a container's neck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002139955A CA2139955C (en) | 1995-01-11 | 1995-01-11 | Tamper evident resealable plastic closure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002139955A CA2139955C (en) | 1995-01-11 | 1995-01-11 | Tamper evident resealable plastic closure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2139955A1 CA2139955A1 (en) | 1996-07-12 |
| CA2139955C true CA2139955C (en) | 2000-11-28 |
Family
ID=4155017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002139955A Expired - Fee Related CA2139955C (en) | 1995-01-11 | 1995-01-11 | Tamper evident resealable plastic closure |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2139955C (en) |
-
1995
- 1995-01-11 CA CA002139955A patent/CA2139955C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2139955A1 (en) | 1996-07-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20140113 |