CA1078781A - Tear open bottle cap - Google Patents
Tear open bottle capInfo
- Publication number
- CA1078781A CA1078781A CA261,732A CA261732A CA1078781A CA 1078781 A CA1078781 A CA 1078781A CA 261732 A CA261732 A CA 261732A CA 1078781 A CA1078781 A CA 1078781A
- Authority
- CA
- Canada
- Prior art keywords
- cap
- skirt
- top panel
- tear open
- tearing
- 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
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
- B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
- B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
- B65D41/40—Caps or cap-like covers adapted to be secured in position by permanent deformation of the wall-engaging parts
- B65D41/42—Caps or cap-like covers adapted to be secured in position by permanent deformation of the wall-engaging parts made of relatively-stiff metallic material, e.g. crown caps
-
- 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
- B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
- B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
- B65D41/40—Caps or cap-like covers adapted to be secured in position by permanent deformation of the wall-engaging parts
- B65D41/44—Caps or cap-like covers adapted to be secured in position by permanent deformation of the wall-engaging parts made of metallic foil or like thin flexible material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
- Packages (AREA)
Abstract
TEAR OPEN BOTTLE CAP
Abstract of the Disclosure A tear open bottle cap formed of lightweight sheet metal having a circular top panel surrounded by a cylindrical skirt connected thereto by a radiused juncture portion. An integrally formed pull member extends away from the skirt edge with score lines commencing at either side of the pull member and extending upwardly across the cap skirt. The score lines diverge outwardly away from each other within the radiused juncture portion and continue part way about the periphery of the cap top panel in arcuate paths. The terminal portions of the score lines extend outwardly into the cap skirt at spaced positions opposite the pull member. An annular sealing gasket is disposed within said cap top so as to lie just radially inwardly of the arcuate scoring.
Abstract of the Disclosure A tear open bottle cap formed of lightweight sheet metal having a circular top panel surrounded by a cylindrical skirt connected thereto by a radiused juncture portion. An integrally formed pull member extends away from the skirt edge with score lines commencing at either side of the pull member and extending upwardly across the cap skirt. The score lines diverge outwardly away from each other within the radiused juncture portion and continue part way about the periphery of the cap top panel in arcuate paths. The terminal portions of the score lines extend outwardly into the cap skirt at spaced positions opposite the pull member. An annular sealing gasket is disposed within said cap top so as to lie just radially inwardly of the arcuate scoring.
Description
BACKGROUND OF THE INVENTION
This invention is concerned with the structural improvement of tear-off h~nd removable convenience bottle caps formed from lightweight sheet metal. Heretofore beer, carbonated beverages and other liquids which were packaged in bottles and other small containers were sealed by crown caps. Such cro~;m caps have the disadvantage of requiring an opener or other tool to remove them. In recent years the trend has been to replace the use of crown caps by caps which are hand removable thus avoiding the necessity of using an opener or other toolO One such type of hand removable cap is formed with a tear strip which can be torn by a pulling action which enables the cap to be destroyed and removed by hand. This type of tear off hand removable cap has met with con-siderable customer acceptance.
It has been found that the prior tear off hand removable bottle caps are difficult to remove without spilling the contents of the bottle if 10'78781 the bottle is held in the user'~ hands while removing the cap. This due to the fact that more pull is required to be applied as the tearing progresses across the top of the cap. Thus, when the b~ttle i6 held in one hand and the tearing of the cap is being done with the other hand the additional pull required to completely remove the cap is not applied evenly making it difficult to hold the bottle steady and resulting in spilling or sloshing of the contents.
One way to alleviate this problem is tl~ construct the cap 80 that the scored lines tear more easily. However, in constructing a tear strip wlth an improved ease of tearing many factors have to be taken into consideration. For example, the depth ant configuration of the ~; score lines will to a great extent be determined by the container pressure that the cap will be required to retain. Another factor is the configuration of the score~l or tear out area which is formed by the score lines. In this regard it has been found desirable to have the score lines, in the top panel of the cap, to have an arcuate configurations and positioned at the outer per~iphery of the top panel.
Heretofore, the common practice in the construction of tear off hand removable caps has been to cover the score lines with a gasket.
This has served to prevent the contents of the container or bottle from ~: : : :
coming into contact with the scored area. In most cases the gasket is of a flowed-on type which adheres to the interior surface of the closure including the score line. Upon the removal of the cap it is not only necessary to tea-r the cap along the score lines but i~ al~o necessary to 25 tear through the gasket material. Additionally, the use of high temperature gasket compounds such as are required for com~only employed sterilized food processing have a higher resistance to tearing which further aggravates the tearing problem.
;~
" , . . . . .. .... - :. . . .
- The removal force necessary to ~ever the thin layer of metal remaining behind the score line in order to remove this novel cap from a bottle is minimal. In addition, the particular scoring pattern herein di~closed offers the advantage of allowing the major part of the cap top panel to be lifted upwardly off of the underlying bottle finish as the cap is being torn open, leaving onlv a very narrow surrounding portion af the cap skirt for easy dislodgement from the bottle as the termination of the tearing action is reached.
It is, accordingly, a principal object of the invention to provide an improved lightweight metal tear open closure for containers which ea~ily hand removable.
Another object is to provide a metal tear o~en bottle cap having an improved score pattern which substantially reduces the pull force ; required to tear open the cap and remove it from the underlying bottle ; ~; 15 lip.
Still another object is to provide a score~l metal tear open cap wherein case of removal is facilitated through the avoidance of tearing ;; through the cap gasket.
Other and more detailed objects will in part be o~vious and in part pointed out as the description of the invention, taken in conjunction with the accompanying drawing proceeds.
:
In that drawing:
Fig. I is a perspective view of the closure cap in accordance with the invention;
Fig. 2 is a top plan view thereof;
Fig. 3 i8 a view taken along line6 3-3 in Fig. 2 and looking in the direction of the arrows;
1~)78781 Fig. 4 i~ an enlarged fragmentary sectional view showing the juxtaposed relationship between the sealing gasket and the semi-circular scoring, and Fig. 5 iB a perspective view of the closure in torn open position 5 just prior to separation from a bottle.
The closure cap of the invention, generally indicate~l by numeral I and, as shown in Figs. I and 2, is formed out of lightweight sheet metal and is seen to comprise a circular top panel 2 surrounded by a radiused juncture portion 3. A cylindrical skirt 4 de@ends from the 10 juncture portion 3 and terminates in a lower~ost free edge 5. A major circular embos~ment 6 is formed in the top panel 2 and extends-radially outwardly blending into the radiused juncture portion 3 in a gradually inclined outer step portion 7 thus forming a shallow inverted channel 8 as clearly seen in Fig. 4. In addition, a minor embossment 9 is 15 centrally disposed within the major embossment 6 defined by an inner step 10. The closure cap I is further-provided with a gripping ear 11 extending downwardly from the skirt free edge 5 in a short neck 12 and then extending radially outwardly and downwardly in a base portion 13 which merges into a pull ring 14. ~ pair of parallel, outwardly 20 embossed reinforcing ribs 15 extend vertically from the base portion 13 across the neck 12 and skirt 4 and terminate at the radiused juncture portion 3.
A pair of score lines generally indicated at 18 are formed in the cap body and, for illustration purposes, are shown as being formed 25 in the exterior surface of the cap, although interior scoring could also be employed. Each of the score lines commence at a notch 17 formed in the skirt edge 5 at either side of the neck portion 12. From the notches 17 the scores 18 extend upwardly across the cap skirt 4.
1078~;'81 Upon entering the radiused juncture portion 3, the score lines flare outwardly away from each other at 19 and blend into arcuate paths, as shown at numeral 20 in Fig. 2, extending part way about the radiused junction portion 20 surrounding the periphery of the cap top pancl 2. The curved score line portionfi 20 are 80 positioned within the radiused juncture portion 3 to define the outer border 3a of the inverted channel 8. Each score line portion 20 continues along an arcuate path to a point angularly displace~l approximately 45 degrees beyond the cap midsection and then flares radially outwardly at 21 terminating in the cap skirt 4 on the opposite side of the cap from the gripping ear 11.
An annular sealing gasket 22, consisting of a vinyl resin @la8tisol, a~ a nonlimiting example, is formed in situ~ within the cap interior.As clearly seen in Fig. 4, the gasket 22 cornE>letely occupies the shallow ~; 15 inverted channel 8 created by the embossed top panel outer step 7 and the radiuse~l juncture portion 3a disposed above the score Line portion 20. This gasket configuration leaves the score line 20 exposed just bclow the outer edge of the gasket with the inner edge of the gasket flowing radially inwardly from the channel 8 to form an effectivo top seal when applied to a container. This arrangcment of placing the score 1ine comE~letely outside the gasket offers the advantage of pro-tecting the score line area against exposure to the packaged product without resort to costly post-coating operations. Such protection is frequently required where lack of product compatibility may cause a chemical attack on the closure cap base metal with resultant con-tamination of the packaged product. Even with scoring on the outside surface of the cap, a certain amount of damage occurs to the interior surface coatings which must still be protected against.
A bottle 23 provided with a circumferentially enlarged lip 24 surrounding the bottle neck opening is shown in Fig. 5.
- 1078'781 The closure cap I of the invention is here shown in an intermediate opening position with the cap in torn open condition but prior to com-plete separation from the underlying bottle lip 24.
In addition to the already described advantages resulting from the 5 improved score pattern of the invention, opening and removal of the cap i8 similarly enhanced. A substantial amount of tearing resistance has heretofore been encountered as the sealing gasket 22 is severed in tearing along it and crossing it during tearing of the cap from the underlying bottle neck. As is clearly evident from the 10 above described gasket-score line relationship of the invention, any tearing through the relatively tough gasketing material has bee~
completely avoided. The only tearing force required to uncap the bottle is that necessary to sever the very thin section of remaining metal in back of the score line.
Finally, the instant score line configuration has been found to make a significant improvement in the ease with which the torn open cap is separated from the bottleO This ease of cap removal comes about by reducing to a minimum the ~bility of the remaining cap portions to grip the underlying bottle lip 24. With the score pattern 20 herein disclosed, only a narrow band of metal consisting of the skirt portion 4 and the remaining part of the radiused juncture portion 3 is left in engagement with the bottle lip after tearing. Completion of the tearing action occurs when the metal becomes severed along the full extent of the score lines 20 and the terminal points remote from 25 the gripping ear are reached. Continuation of the normal pulling force applied to the ring 11 then causes the relatively flimsy remaining cap portion to be quite easily dislodged from the underlying bottle lip 24 thus avoiding any undesirable sloshing or spillage of the bottled product.
From the foregoing it is readily apparent that numerous advantages result from the closure cap of the invention as above ' .:.', , ' , ':::.:
describcd. It should be noted that variations in the cap construction could be employed such as varying the construction or shape of the cap gripping ear. Also different gasketing systems could be employed such as an overalt liner adhered to or frictionally retained within the cap interior.
Still other changes in the modifications of the construction and different embodiments of the invention would suggest themselve~ to those skilled in the art and could be made without departing from the ~pirit or scope of the invention. It is, accordingly, intended that all 10 matter contained in the above description, or shown in the accompanying drawmg shall be interpreted as being illustrative and not in the limiting sense.
::~
.
:
,~
::
` SU MMARY
The novel bottle cap disclo6ed and claimed in this application provides a cap construction which completely eliminates the need to tear through the cap gasket when the cap is torn. This is accomplished by using acore lines which have arcuate configurations and which are positioned in the radiused junction portion of the cap rather than in any portion of the cap top panel. An annular sealing gasket is secured to the interior surface of the cap top panel and is positioned radially inwardly of the arcuate score lines. Since the score lines are positioned outside the gasket area this novel construction has the technical effect of requiring only the metal score area to be torn for removal o the cap.
This eliminates the problem of having to tear the gasket itself in addition to the metal remaining in the scored areas. This is of particular significance because in providing a cap having score lines with improved tearing qualitie~, the problem of the prior caps is eliminated wherein the tearing became progressively more difficult as it proceeded, required the application of more tearing force which in turn resulted in sloshing and spilling of the bottle contents. An additional technical effect is achieved in that the scored area is protected by the gasket from contamination by the bottle contents and vice versa without having the gasket positioned directly over the score lines. Additionally the gasket serves to cushion against the effect of pressure within the container acting against the scored areas which could cause a premature rupturing thereof.
This invention is concerned with the structural improvement of tear-off h~nd removable convenience bottle caps formed from lightweight sheet metal. Heretofore beer, carbonated beverages and other liquids which were packaged in bottles and other small containers were sealed by crown caps. Such cro~;m caps have the disadvantage of requiring an opener or other tool to remove them. In recent years the trend has been to replace the use of crown caps by caps which are hand removable thus avoiding the necessity of using an opener or other toolO One such type of hand removable cap is formed with a tear strip which can be torn by a pulling action which enables the cap to be destroyed and removed by hand. This type of tear off hand removable cap has met with con-siderable customer acceptance.
It has been found that the prior tear off hand removable bottle caps are difficult to remove without spilling the contents of the bottle if 10'78781 the bottle is held in the user'~ hands while removing the cap. This due to the fact that more pull is required to be applied as the tearing progresses across the top of the cap. Thus, when the b~ttle i6 held in one hand and the tearing of the cap is being done with the other hand the additional pull required to completely remove the cap is not applied evenly making it difficult to hold the bottle steady and resulting in spilling or sloshing of the contents.
One way to alleviate this problem is tl~ construct the cap 80 that the scored lines tear more easily. However, in constructing a tear strip wlth an improved ease of tearing many factors have to be taken into consideration. For example, the depth ant configuration of the ~; score lines will to a great extent be determined by the container pressure that the cap will be required to retain. Another factor is the configuration of the score~l or tear out area which is formed by the score lines. In this regard it has been found desirable to have the score lines, in the top panel of the cap, to have an arcuate configurations and positioned at the outer per~iphery of the top panel.
Heretofore, the common practice in the construction of tear off hand removable caps has been to cover the score lines with a gasket.
This has served to prevent the contents of the container or bottle from ~: : : :
coming into contact with the scored area. In most cases the gasket is of a flowed-on type which adheres to the interior surface of the closure including the score line. Upon the removal of the cap it is not only necessary to tea-r the cap along the score lines but i~ al~o necessary to 25 tear through the gasket material. Additionally, the use of high temperature gasket compounds such as are required for com~only employed sterilized food processing have a higher resistance to tearing which further aggravates the tearing problem.
;~
" , . . . . .. .... - :. . . .
- The removal force necessary to ~ever the thin layer of metal remaining behind the score line in order to remove this novel cap from a bottle is minimal. In addition, the particular scoring pattern herein di~closed offers the advantage of allowing the major part of the cap top panel to be lifted upwardly off of the underlying bottle finish as the cap is being torn open, leaving onlv a very narrow surrounding portion af the cap skirt for easy dislodgement from the bottle as the termination of the tearing action is reached.
It is, accordingly, a principal object of the invention to provide an improved lightweight metal tear open closure for containers which ea~ily hand removable.
Another object is to provide a metal tear o~en bottle cap having an improved score pattern which substantially reduces the pull force ; required to tear open the cap and remove it from the underlying bottle ; ~; 15 lip.
Still another object is to provide a score~l metal tear open cap wherein case of removal is facilitated through the avoidance of tearing ;; through the cap gasket.
Other and more detailed objects will in part be o~vious and in part pointed out as the description of the invention, taken in conjunction with the accompanying drawing proceeds.
:
In that drawing:
Fig. I is a perspective view of the closure cap in accordance with the invention;
Fig. 2 is a top plan view thereof;
Fig. 3 i8 a view taken along line6 3-3 in Fig. 2 and looking in the direction of the arrows;
1~)78781 Fig. 4 i~ an enlarged fragmentary sectional view showing the juxtaposed relationship between the sealing gasket and the semi-circular scoring, and Fig. 5 iB a perspective view of the closure in torn open position 5 just prior to separation from a bottle.
The closure cap of the invention, generally indicate~l by numeral I and, as shown in Figs. I and 2, is formed out of lightweight sheet metal and is seen to comprise a circular top panel 2 surrounded by a radiused juncture portion 3. A cylindrical skirt 4 de@ends from the 10 juncture portion 3 and terminates in a lower~ost free edge 5. A major circular embos~ment 6 is formed in the top panel 2 and extends-radially outwardly blending into the radiused juncture portion 3 in a gradually inclined outer step portion 7 thus forming a shallow inverted channel 8 as clearly seen in Fig. 4. In addition, a minor embossment 9 is 15 centrally disposed within the major embossment 6 defined by an inner step 10. The closure cap I is further-provided with a gripping ear 11 extending downwardly from the skirt free edge 5 in a short neck 12 and then extending radially outwardly and downwardly in a base portion 13 which merges into a pull ring 14. ~ pair of parallel, outwardly 20 embossed reinforcing ribs 15 extend vertically from the base portion 13 across the neck 12 and skirt 4 and terminate at the radiused juncture portion 3.
A pair of score lines generally indicated at 18 are formed in the cap body and, for illustration purposes, are shown as being formed 25 in the exterior surface of the cap, although interior scoring could also be employed. Each of the score lines commence at a notch 17 formed in the skirt edge 5 at either side of the neck portion 12. From the notches 17 the scores 18 extend upwardly across the cap skirt 4.
1078~;'81 Upon entering the radiused juncture portion 3, the score lines flare outwardly away from each other at 19 and blend into arcuate paths, as shown at numeral 20 in Fig. 2, extending part way about the radiused junction portion 20 surrounding the periphery of the cap top pancl 2. The curved score line portionfi 20 are 80 positioned within the radiused juncture portion 3 to define the outer border 3a of the inverted channel 8. Each score line portion 20 continues along an arcuate path to a point angularly displace~l approximately 45 degrees beyond the cap midsection and then flares radially outwardly at 21 terminating in the cap skirt 4 on the opposite side of the cap from the gripping ear 11.
An annular sealing gasket 22, consisting of a vinyl resin @la8tisol, a~ a nonlimiting example, is formed in situ~ within the cap interior.As clearly seen in Fig. 4, the gasket 22 cornE>letely occupies the shallow ~; 15 inverted channel 8 created by the embossed top panel outer step 7 and the radiuse~l juncture portion 3a disposed above the score Line portion 20. This gasket configuration leaves the score line 20 exposed just bclow the outer edge of the gasket with the inner edge of the gasket flowing radially inwardly from the channel 8 to form an effectivo top seal when applied to a container. This arrangcment of placing the score 1ine comE~letely outside the gasket offers the advantage of pro-tecting the score line area against exposure to the packaged product without resort to costly post-coating operations. Such protection is frequently required where lack of product compatibility may cause a chemical attack on the closure cap base metal with resultant con-tamination of the packaged product. Even with scoring on the outside surface of the cap, a certain amount of damage occurs to the interior surface coatings which must still be protected against.
A bottle 23 provided with a circumferentially enlarged lip 24 surrounding the bottle neck opening is shown in Fig. 5.
- 1078'781 The closure cap I of the invention is here shown in an intermediate opening position with the cap in torn open condition but prior to com-plete separation from the underlying bottle lip 24.
In addition to the already described advantages resulting from the 5 improved score pattern of the invention, opening and removal of the cap i8 similarly enhanced. A substantial amount of tearing resistance has heretofore been encountered as the sealing gasket 22 is severed in tearing along it and crossing it during tearing of the cap from the underlying bottle neck. As is clearly evident from the 10 above described gasket-score line relationship of the invention, any tearing through the relatively tough gasketing material has bee~
completely avoided. The only tearing force required to uncap the bottle is that necessary to sever the very thin section of remaining metal in back of the score line.
Finally, the instant score line configuration has been found to make a significant improvement in the ease with which the torn open cap is separated from the bottleO This ease of cap removal comes about by reducing to a minimum the ~bility of the remaining cap portions to grip the underlying bottle lip 24. With the score pattern 20 herein disclosed, only a narrow band of metal consisting of the skirt portion 4 and the remaining part of the radiused juncture portion 3 is left in engagement with the bottle lip after tearing. Completion of the tearing action occurs when the metal becomes severed along the full extent of the score lines 20 and the terminal points remote from 25 the gripping ear are reached. Continuation of the normal pulling force applied to the ring 11 then causes the relatively flimsy remaining cap portion to be quite easily dislodged from the underlying bottle lip 24 thus avoiding any undesirable sloshing or spillage of the bottled product.
From the foregoing it is readily apparent that numerous advantages result from the closure cap of the invention as above ' .:.', , ' , ':::.:
describcd. It should be noted that variations in the cap construction could be employed such as varying the construction or shape of the cap gripping ear. Also different gasketing systems could be employed such as an overalt liner adhered to or frictionally retained within the cap interior.
Still other changes in the modifications of the construction and different embodiments of the invention would suggest themselve~ to those skilled in the art and could be made without departing from the ~pirit or scope of the invention. It is, accordingly, intended that all 10 matter contained in the above description, or shown in the accompanying drawmg shall be interpreted as being illustrative and not in the limiting sense.
::~
.
:
,~
::
` SU MMARY
The novel bottle cap disclo6ed and claimed in this application provides a cap construction which completely eliminates the need to tear through the cap gasket when the cap is torn. This is accomplished by using acore lines which have arcuate configurations and which are positioned in the radiused junction portion of the cap rather than in any portion of the cap top panel. An annular sealing gasket is secured to the interior surface of the cap top panel and is positioned radially inwardly of the arcuate score lines. Since the score lines are positioned outside the gasket area this novel construction has the technical effect of requiring only the metal score area to be torn for removal o the cap.
This eliminates the problem of having to tear the gasket itself in addition to the metal remaining in the scored areas. This is of particular significance because in providing a cap having score lines with improved tearing qualitie~, the problem of the prior caps is eliminated wherein the tearing became progressively more difficult as it proceeded, required the application of more tearing force which in turn resulted in sloshing and spilling of the bottle contents. An additional technical effect is achieved in that the scored area is protected by the gasket from contamination by the bottle contents and vice versa without having the gasket positioned directly over the score lines. Additionally the gasket serves to cushion against the effect of pressure within the container acting against the scored areas which could cause a premature rupturing thereof.
Claims (5)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A lightweight metal tear-off cap comprising a cir-cular top panel surrounded by a cylindrical skirt terminating in a lowermost free edge, a radiused juncture portion connecting said top panel and said skirt, a gripping ear formed as an integral part of said skirt extending from said free edge, a tearing zone commencing at said skirt free edge adjacent said gripping ear and extending upwardly across said skirt and blend-ing into a circular path lying within said radiused juncture por-tion, said tearing zone extending rearwardly from said gripping ear to at least partially surround said cap top panel and a seal-ing gasket adhesively affixed to said cap interior disposed radially inwardly of said tearing zone along said path whereby tearing along said exposed tearing zone independently of said gasket causes the major portion of said cap top panel to be sep-arated from said cap skirt upon opening.
2. A lightweight metal tear open cap according to claim 1 including said tearing zone commencing at said skirt free edge on either side of said gripping ear.
3. A lightweight metal tear open cap according to claim 1 or 2 wherein said sealing gasket extends radially outwardly to a position in close proximity to said annular tearing zone path.
4. A lightweight metal tear open cap according to claim 1 including a concentric depressed embossment in said cap top panel.
5. A lightweight metal tear open cap according to claim 4 wherein a gasket receiving channel is formed by said embossment about the periphery of said cap top panel.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/667,266 US4003488A (en) | 1975-05-29 | 1976-03-15 | Tear open bottle cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1078781A true CA1078781A (en) | 1980-06-03 |
Family
ID=24677515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA261,732A Expired CA1078781A (en) | 1976-03-15 | 1976-09-21 | Tear open bottle cap |
Country Status (27)
| Country | Link |
|---|---|
| JP (2) | JPS52112480A (en) |
| AR (1) | AR212247A1 (en) |
| AT (1) | AT358939B (en) |
| AU (1) | AU497391B2 (en) |
| BE (1) | BE846871A (en) |
| BR (1) | BR7607339A (en) |
| CA (1) | CA1078781A (en) |
| CH (1) | CH611224A5 (en) |
| DE (1) | DE2659243A1 (en) |
| DK (1) | DK147675C (en) |
| EG (1) | EG14089A (en) |
| ES (1) | ES234647Y (en) |
| FI (1) | FI64329C (en) |
| FR (1) | FR2344463A1 (en) |
| GB (1) | GB1561073A (en) |
| GR (1) | GR61778B (en) |
| IE (1) | IE44386B1 (en) |
| IT (1) | IT1081921B (en) |
| MX (1) | MX145153A (en) |
| NL (1) | NL171880C (en) |
| NO (1) | NO143841C (en) |
| NZ (1) | NZ182092A (en) |
| PH (1) | PH12581A (en) |
| PT (1) | PT65818B (en) |
| SE (1) | SE428366B (en) |
| YU (1) | YU40150B (en) |
| ZA (1) | ZA765550B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60157640U (en) * | 1983-11-28 | 1985-10-21 | 株式会社 高見王冠 | katsupu crown |
| IT1180698B (en) * | 1984-04-12 | 1987-09-23 | Italcaps Spa | CAPSULE FOR BOTTLES |
| JPH0420761Y2 (en) * | 1985-06-17 | 1992-05-12 | ||
| JPH0829786B2 (en) * | 1986-01-22 | 1996-03-27 | 日本クラウンコルク株式会社 | Metal container lid |
| SE8604926D0 (en) * | 1986-11-17 | 1986-11-18 | Wicanders Kapsyl Ab | REMOVABLE CAPSYL |
| US5265746A (en) * | 1991-07-05 | 1993-11-30 | Lee Jeong M | Bottle cap having integral opener |
| IT201600109454A1 (en) * | 2016-10-28 | 2018-04-28 | Pelliconi & C Spa | CLOSURE CLOSURE FOR CONTAINERS. |
| IT202100020825A1 (en) * | 2021-08-02 | 2023-02-02 | Sacmi | Method and apparatus for the production of removable closures |
-
1976
- 1976-09-14 IE IE2049/76A patent/IE44386B1/en unknown
- 1976-09-15 ZA ZA765550A patent/ZA765550B/en unknown
- 1976-09-16 GB GB38421/76A patent/GB1561073A/en not_active Expired
- 1976-09-17 NZ NZ182092A patent/NZ182092A/en unknown
- 1976-09-17 AU AU17881/76A patent/AU497391B2/en not_active Expired
- 1976-09-21 CA CA261,732A patent/CA1078781A/en not_active Expired
- 1976-09-23 CH CH1209776A patent/CH611224A5/en not_active IP Right Cessation
- 1976-09-27 AR AR264874A patent/AR212247A1/en active
- 1976-09-29 FI FI762772A patent/FI64329C/en not_active IP Right Cessation
- 1976-10-01 BE BE171182A patent/BE846871A/en not_active IP Right Cessation
- 1976-10-06 MX MX166578A patent/MX145153A/en unknown
- 1976-10-07 JP JP12079376A patent/JPS52112480A/en active Pending
- 1976-10-12 NO NO763469A patent/NO143841C/en unknown
- 1976-10-13 NL NLAANVRAGE7611310,A patent/NL171880C/en not_active IP Right Cessation
- 1976-10-13 ES ES1976234647U patent/ES234647Y/en not_active Expired
- 1976-10-14 YU YU2522/76A patent/YU40150B/en unknown
- 1976-10-27 EG EG660/76A patent/EG14089A/en active
- 1976-10-29 BR BR7607339A patent/BR7607339A/en unknown
- 1976-11-10 AT AT833576A patent/AT358939B/en not_active IP Right Cessation
- 1976-11-10 PT PT65818A patent/PT65818B/en unknown
- 1976-11-16 SE SE7612795A patent/SE428366B/en not_active IP Right Cessation
- 1976-11-24 FR FR7635330A patent/FR2344463A1/en active Granted
- 1976-11-30 DK DK538476A patent/DK147675C/en active
- 1976-12-24 DE DE19762659243 patent/DE2659243A1/en not_active Ceased
-
1977
- 1977-01-19 PH PH19361A patent/PH12581A/en unknown
- 1977-03-07 IT IT48336/77A patent/IT1081921B/en active
- 1977-03-15 GR GR53001A patent/GR61778B/en unknown
-
1980
- 1980-09-26 JP JP1980137039U patent/JPS5723328Y2/ja not_active Expired
Also Published As
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4003488A (en) | Tear open bottle cap | |
| US3974931A (en) | Bottle cap | |
| US4564116A (en) | Closure cap for beverage containers | |
| US4589561A (en) | Tamper-proof closure for containers | |
| US5088614A (en) | Canned drink cover apparatus | |
| US4037746A (en) | Plastic cap and bottle neck | |
| US4106653A (en) | Tearable bottle cap | |
| US4129226A (en) | Hinged closures for containers | |
| JPS5920553B2 (en) | container lid | |
| US3200982A (en) | Bottle cap | |
| US6016931A (en) | Cap separable from bottle at the time of disposal | |
| US3216602A (en) | Container and cap therefor | |
| IE59037B1 (en) | Bottles | |
| CN1311744A (en) | Security closure for bottles | |
| US4200196A (en) | Bottle top closure | |
| CA1078781A (en) | Tear open bottle cap | |
| US3276613A (en) | Crown cap | |
| US3191790A (en) | Hood for bottle stopper | |
| US3556336A (en) | Tear-off container closure | |
| US4060172A (en) | Container and closure cap | |
| US5119965A (en) | Dressing capsule for bottle | |
| US3281001A (en) | Crown cap | |
| US3251498A (en) | Self-opening bottle cap | |
| US3799381A (en) | Composite closure | |
| EP0009525B1 (en) | Improvements in and relating to hinged closures for containers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |