CA1108556A - Bottle closure for sales promotion - Google Patents
Bottle closure for sales promotionInfo
- Publication number
- CA1108556A CA1108556A CA295,282A CA295282A CA1108556A CA 1108556 A CA1108556 A CA 1108556A CA 295282 A CA295282 A CA 295282A CA 1108556 A CA1108556 A CA 1108556A
- Authority
- CA
- Canada
- Prior art keywords
- closure
- center panel
- inner bottom
- gasket
- panel portion
- 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
Landscapes
- Closures For Containers (AREA)
Abstract
Abstract of the Disclosure A closure for sales promotion comprising a closure shell having the indication of a prize offer on its inner bottom surface and a gasket bonded to its inner bottom surface, the gasket having a center panel portion held half-adhered to the inner bottom surface of the closure shell or held non-adhering and a peripheral sealing portion firmly adhered to the inner bottom surface of the closure shell, the center panel portion being complete-ly defined from the peripheral sealing portion by a breakable line so that the center panel portion can be stripped off from the inner bottom surface of the closure shell while leaving the peripheral sealing portion.
Description
lhi$ invention relates to a new bottle closure adapted to be used for sales promotion, and more specifi-cally, to a re-sealable bottle closure for sales promotionO
Crown caps have heretofore been widely used as bottle closures for sale.s promotionO ~hese crown caps permit a removal of the entire gasket, but this mechanism canno~ be applied to closures which require re-sealing, such as screw closuresO With the development of various re-sealable bottle closures in recent years, there has been an increasing tendency toward selling beverages in large-capacity containersO The manufacturers and distributors - of such bottled beverages have shown a stronger desire for incorporating the indication of prize offer into the closures of such large-capacity contai.ners with a view to promoting salesO
It is an object of this invention to provide a ~: re-sealable bottle closure for sales promotionO
Another object of this invention is to provide a re-sealable bottle closure for saIes promotion in whi.ch the center panel part alone can be very ea.sily peeled off while leaving the sealing portion of the gasketO
Other objects and advantages of the invention will be apparent from the following description :, ` According to this invention, there is provided a bottle closure for sales promotion comprising a closure shell having the indication of a prize offer on its inner ; bottom surface and a gas~et bonded to its inner bottom surface, the gasket having a center panel portion held half-adhered to the inner bottom surface of the closure 3 shell or held non-adhering and a peripheral sealing portion . ~
~8556 firmly adhered to the inner bottom surface of the closure shell, the center panel portion being completel,y defined from the peripheral sealing portion by a breakable line so that the center panel portion can be stripped off from the inner bottom surface of the closure shell while leaving the peripheral sealing portionO
The closure of the present invention is described hereinbelow with reference to the accompanying drawings in which:
Figure 1 is a partly cut-away side elevation of the closure of this invention;
Figure 2 is a top plan of the closure of the invention with its inside on top;
Figure ~ is an enlarged sectional view taken along the line I-I of Figure 2;
Figure 4 is an enlarged view, partly in section, of a modification of the closure shown in Figure 2, in which the indication of a prize offer is given transferably;
Figure 5 is a top plan of another embodiment of the closure of the invention wit~l its inside on top;
Figure 6 is an enlarged sectional view taken along the line II-II of Figure 5; and Figure 7 is a top plan showing various shapes, (~), (B), (C), of the tear strip portion of the closure of this invention with the inside of the closure on topO
In Figure 1 which shows the entire arrangement ' of the bottle closure provided by the present invention~
closure 1 consists basically of a shell 2 having the indication 4 of a priz,e offer on its inner bottom surface 3, and a gasek.t 5 bonded to the inner bottom surface 3O As a typical example, Figure 1 shows a "roll-on" pilfer proof cap shell 2 having a circular panel a and in a skirt por-tion extending downwardly from its peripheral edge, a thread-forming portion b, a slit portion c and a pilfer proof band dO ~he present inventiont however, is also applicable to other types of bottle closures such as a roll-on cap shell, a pre-screw cap shell or a lug cap shellO
~he material of the gasket applied to such a closure shell is not critical, and various synthetic resins ordinarily used in the art are also feasible in this inven-: tionO lypical examples are polyolefins such as polyethylene or polypropylene, rubbers such as a styrene-butadiene rubber, and polyvinyl chlorideO Polyethylene is an especially suit-able material for the gasket for use in the present inventionO
The indication of a prize offer on the inner bottom surface 3 of the closure shell can be provided by printing as in the case of conventional crown caps for sales promo-~ tionO It is adapted to be transferred to -the gasket to be ~: 20 peeled off, as requiredO Such a transferable indication ~^
of a prize offer is known, and disclosed, for example, in ` UO SD Patents 3257021~ 3361281, 3581690, and 3633781O
~he first characteristic feature of the closure " of this invention is that the center panel portion 6 of the gasket 5 is selectively held half-adhered to the inner bottom - surface 3 of the closure shell 2 or non-adhering, and the ~ peripheral sealing portion 7 of the gasket 5 is firmly bond-: ed to the inner bottom surface 3 of the closure shellO
~hroughout the present specification and the ; , . ~ . - , , :
, ~ ~ . , . -1~855i6 appended claims, the term "cen-ter panel portion" of the gasket denotes -the -thin central portion of the gasket which does not make contact with the sealing end (the portion indicated by -the letter "S" in Figure 1) of a container to be closedO ~he term "peripheral sealing portion" of the gasket, denotes the thick peripheral edge portion of the gasket which comes into close engagement with the seaLing end of a container to be closed to form a gas- and liquid-tight sealO
Any known method can be used to hold the center panel portion of the gasket half-adhered to the inner bottom surface of the closure shell or non-adhering, and to cause the peripheral sealing portion of the gasket to adhere firmly to the inner bottom surface of the closure shellO For example, this can be accomplished by coating or printing a lacquer or ink, which adheres firmly to a gasket material applied, on that zone of the inner bottom surface of the closure shell with which the peripheral sealing portion of the gasket makes contact, and a lacquer or ink, which adheres weakly, or does not substantially adhere, to the gasket material applied, on that zone which makes contact with the center panel portion of the gasketO An alternative method comprises coating the entire inner bottom surface of the closure shell with a lacquer or ink which adheres firmly to the gasket material applied, and performing entire surface or halftone dot printing on that zone of the inner bottom surface of the closure shell which makes contact with the center panel portion of the gasket using a lacquer or ink which does not substantially adhere to 85~6 the gasket material, whereby the adhering condition of the center panel portion of the gasket to the halftone dot printed portion of the inner bottom surface of the closure shell can be adjusted between a half-adhering state and a substantially non-adhering stateO
~urthermore, by utilizing the method disclosed in German Offenlegungsschrift 2711727, only the center panel portion of the gasket can be maintained half-ahdered to the inner bo-ttom surface of the closure shellO ~he methods disclosed in Japanese Laid-Open Patent Publications NosO 126484/1974 and 150188/1977 can also be utilizedO
When polyethylene is used as a gasket material, a lacquer or ink for firm bonding may be the one composed mainly of oxidized polyethylene as disclosed in British Patent ~pecification ~oO 1,484,2090 Lacquers or inks for half-bonding or non-bonding include a blend of a small proportion of oxidized polyethylene with another compatible --?
resin, or those containing an epoxy-phenol resin, an epoxy-urea resin, or an alkyd resinO When polyvinyl chloride is : 20 used as a material for the gasket, the lacquer or ink for firm bonding may be the one which consist mainly of a vinyl chloride-vinyl acetate copolymer ox an acrylic resinO
Lacquers or inks for non-bonding are preferably those which contain an epoxy-phenol resin, an epoxy-urea resin, or an alkyd resin as a main componentO
Another characteristic feature of the closure of this invention is that the center panel portion 4 of the gasket 5 i.s completely separated from the peripheral sealing portion 7 of the gasket 5 by a breakable line 80 1~8556 As is clear from ~igure 2, the breakable line 8 can be formed in a complete annular shape in proximity to the peripheral sealing portion 7 of the gasket 50 The break-able line 8 may be a score incised on the center panel portion 6 of the gasket 5, as shown in ~igure 1 or 3D Or it may be a slit-like line which extends to the inner bottom surface 3 of the closure shell, or a perforation line..
; In short, any line is feasible which can permit the separa-ti.on of the center panel portion 6 from the peripheral sealing portion 7 along the breakable line 8 without any great forceO
Since the center panel portion 6 is held half-adhered to the inner bottom surface 3 of the closure shell
Crown caps have heretofore been widely used as bottle closures for sale.s promotionO ~hese crown caps permit a removal of the entire gasket, but this mechanism canno~ be applied to closures which require re-sealing, such as screw closuresO With the development of various re-sealable bottle closures in recent years, there has been an increasing tendency toward selling beverages in large-capacity containersO The manufacturers and distributors - of such bottled beverages have shown a stronger desire for incorporating the indication of prize offer into the closures of such large-capacity contai.ners with a view to promoting salesO
It is an object of this invention to provide a ~: re-sealable bottle closure for sales promotionO
Another object of this invention is to provide a re-sealable bottle closure for saIes promotion in whi.ch the center panel part alone can be very ea.sily peeled off while leaving the sealing portion of the gasketO
Other objects and advantages of the invention will be apparent from the following description :, ` According to this invention, there is provided a bottle closure for sales promotion comprising a closure shell having the indication of a prize offer on its inner ; bottom surface and a gas~et bonded to its inner bottom surface, the gasket having a center panel portion held half-adhered to the inner bottom surface of the closure 3 shell or held non-adhering and a peripheral sealing portion . ~
~8556 firmly adhered to the inner bottom surface of the closure shell, the center panel portion being completel,y defined from the peripheral sealing portion by a breakable line so that the center panel portion can be stripped off from the inner bottom surface of the closure shell while leaving the peripheral sealing portionO
The closure of the present invention is described hereinbelow with reference to the accompanying drawings in which:
Figure 1 is a partly cut-away side elevation of the closure of this invention;
Figure 2 is a top plan of the closure of the invention with its inside on top;
Figure ~ is an enlarged sectional view taken along the line I-I of Figure 2;
Figure 4 is an enlarged view, partly in section, of a modification of the closure shown in Figure 2, in which the indication of a prize offer is given transferably;
Figure 5 is a top plan of another embodiment of the closure of the invention wit~l its inside on top;
Figure 6 is an enlarged sectional view taken along the line II-II of Figure 5; and Figure 7 is a top plan showing various shapes, (~), (B), (C), of the tear strip portion of the closure of this invention with the inside of the closure on topO
In Figure 1 which shows the entire arrangement ' of the bottle closure provided by the present invention~
closure 1 consists basically of a shell 2 having the indication 4 of a priz,e offer on its inner bottom surface 3, and a gasek.t 5 bonded to the inner bottom surface 3O As a typical example, Figure 1 shows a "roll-on" pilfer proof cap shell 2 having a circular panel a and in a skirt por-tion extending downwardly from its peripheral edge, a thread-forming portion b, a slit portion c and a pilfer proof band dO ~he present inventiont however, is also applicable to other types of bottle closures such as a roll-on cap shell, a pre-screw cap shell or a lug cap shellO
~he material of the gasket applied to such a closure shell is not critical, and various synthetic resins ordinarily used in the art are also feasible in this inven-: tionO lypical examples are polyolefins such as polyethylene or polypropylene, rubbers such as a styrene-butadiene rubber, and polyvinyl chlorideO Polyethylene is an especially suit-able material for the gasket for use in the present inventionO
The indication of a prize offer on the inner bottom surface 3 of the closure shell can be provided by printing as in the case of conventional crown caps for sales promo-~ tionO It is adapted to be transferred to -the gasket to be ~: 20 peeled off, as requiredO Such a transferable indication ~^
of a prize offer is known, and disclosed, for example, in ` UO SD Patents 3257021~ 3361281, 3581690, and 3633781O
~he first characteristic feature of the closure " of this invention is that the center panel portion 6 of the gasket 5 is selectively held half-adhered to the inner bottom - surface 3 of the closure shell 2 or non-adhering, and the ~ peripheral sealing portion 7 of the gasket 5 is firmly bond-: ed to the inner bottom surface 3 of the closure shellO
~hroughout the present specification and the ; , . ~ . - , , :
, ~ ~ . , . -1~855i6 appended claims, the term "cen-ter panel portion" of the gasket denotes -the -thin central portion of the gasket which does not make contact with the sealing end (the portion indicated by -the letter "S" in Figure 1) of a container to be closedO ~he term "peripheral sealing portion" of the gasket, denotes the thick peripheral edge portion of the gasket which comes into close engagement with the seaLing end of a container to be closed to form a gas- and liquid-tight sealO
Any known method can be used to hold the center panel portion of the gasket half-adhered to the inner bottom surface of the closure shell or non-adhering, and to cause the peripheral sealing portion of the gasket to adhere firmly to the inner bottom surface of the closure shellO For example, this can be accomplished by coating or printing a lacquer or ink, which adheres firmly to a gasket material applied, on that zone of the inner bottom surface of the closure shell with which the peripheral sealing portion of the gasket makes contact, and a lacquer or ink, which adheres weakly, or does not substantially adhere, to the gasket material applied, on that zone which makes contact with the center panel portion of the gasketO An alternative method comprises coating the entire inner bottom surface of the closure shell with a lacquer or ink which adheres firmly to the gasket material applied, and performing entire surface or halftone dot printing on that zone of the inner bottom surface of the closure shell which makes contact with the center panel portion of the gasket using a lacquer or ink which does not substantially adhere to 85~6 the gasket material, whereby the adhering condition of the center panel portion of the gasket to the halftone dot printed portion of the inner bottom surface of the closure shell can be adjusted between a half-adhering state and a substantially non-adhering stateO
~urthermore, by utilizing the method disclosed in German Offenlegungsschrift 2711727, only the center panel portion of the gasket can be maintained half-ahdered to the inner bo-ttom surface of the closure shellO ~he methods disclosed in Japanese Laid-Open Patent Publications NosO 126484/1974 and 150188/1977 can also be utilizedO
When polyethylene is used as a gasket material, a lacquer or ink for firm bonding may be the one composed mainly of oxidized polyethylene as disclosed in British Patent ~pecification ~oO 1,484,2090 Lacquers or inks for half-bonding or non-bonding include a blend of a small proportion of oxidized polyethylene with another compatible --?
resin, or those containing an epoxy-phenol resin, an epoxy-urea resin, or an alkyd resinO When polyvinyl chloride is : 20 used as a material for the gasket, the lacquer or ink for firm bonding may be the one which consist mainly of a vinyl chloride-vinyl acetate copolymer ox an acrylic resinO
Lacquers or inks for non-bonding are preferably those which contain an epoxy-phenol resin, an epoxy-urea resin, or an alkyd resin as a main componentO
Another characteristic feature of the closure of this invention is that the center panel portion 4 of the gasket 5 i.s completely separated from the peripheral sealing portion 7 of the gasket 5 by a breakable line 80 1~8556 As is clear from ~igure 2, the breakable line 8 can be formed in a complete annular shape in proximity to the peripheral sealing portion 7 of the gasket 50 The break-able line 8 may be a score incised on the center panel portion 6 of the gasket 5, as shown in ~igure 1 or 3D Or it may be a slit-like line which extends to the inner bottom surface 3 of the closure shell, or a perforation line..
; In short, any line is feasible which can permit the separa-ti.on of the center panel portion 6 from the peripheral sealing portion 7 along the breakable line 8 without any great forceO
Since the center panel portion 6 is held half-adhered to the inner bottom surface 3 of the closure shell
2 or non-adhering by a half-adhering or non-adhering lacquer layer Ll as shown in ~igure 3~ it can be readily raised ~: by hooking the tip of a finger nail or a pointed tool 1' in the breakable line 8 and pulling it upwardlyO The force ~ to raise the center panel 6 results in the breaking of the ,~ .
: breakable line 8, and the center panel 6 can be separated .~ 20 from the inner bottom surface 3 of the closure shell and >:, finally can be taken out of the closure shell leaving the peripheral sealing portion 70 . Since the indication of a prize offer 4 is pro-,`r vided on the inner bottom surface ~ of the closure shell which is beneath the center panel 6, it becomes visible as a result of the removal of the center panelO
In an alternative embodiment shown in ~igure 4, the indication 4 of a prize offer is printed on a lacquer layer L2 to which the gasket adheres firmly, and a lacquer .
~8556 layer ~ which is substantially non-adhering to the lacquer layer L2 is provided in an area between -the lacquer layer L2 and the inner bottom surface of the closure shell which corresponds to the center panel portion 6. According to this embodiment, the lacquer layer L2 breaks at the part shown by dotted line in the drawing by the operation of separating -the center panel portion 5, and is thus lifted together with the center panel portion 6O Consequently, the indication 4 of a prize offer is transferred to the back surface of the center panel 6~ and removed from the closure shellO rlhe center panel portion 6 having the indication 4 of pri%e offer so transferred can be directly used for the purpose of assigning the prizeD
In order to obviate the use of a tool for separat-ing the center panel portion 6 or to render the separation easier, a knob 9 may be provided at a part of the periphery of the center panel as shown by a dotted l.ine in Figures 2 and 3O rrhe shape and size of the knob 9 are not critical, and it may be of such a size and shape which permit hold-ing by fingersO Advantageously, it has a height of about 2 to 5 mm, and a maximum diameter of about 2 to 5 mm, although the dimensions may vary according to the size of the closure shellO The shape of -the knob 9 ~ay, for example, be dome-like,. spherical, sylindrical, o~ rectangular piller-shapedO
According to a preferred embodiment to be des-cribed hereinbelow with reference to Figures 5 and 6, a tear strip portion which can be cut and lifted by being partially defined by a breakable line may be provided in the center panel in order to faci.litate the separation of ~108556 the center panelO
Referring to Figures 5 and 6, a tear strip por-tion 11 capable of being cut and lifted by a breakable line 10 is formed in the center panel portion 6 of gasket 50 ~he tear strip portion 11 is only partly surrounded by the breakable line 10, and is integrated with the remainder of ~ the center panel portion 6 of th.e gasket at a non-continuous ; portion 12 of the breakable line lOo ~he breakable line 10 : ~ may be any of a score, slit or perforation line as described ~: 10 hereinabove with regard to the breakable line 80 In operation, the tear strip portion 11 of the closure shown in Figures 5 and 6 is cut and lifted by a finger nail or a tool, and is further lifted by holding it ~ with fingersO Since the tear strip portion 11 is integratedF 15 with the center panel portion 6 at the non-continuous por-i~,~ . .
~ tion 12, the entire center panel portion 6 can be separated ~`~ :;:
~ from the closure by this operationO
~J ::
Desirably, a l~nob 13 is provided at the tip portion `~ of the tear strip portion 11 as shown by a dotted line in Figures 5 and 6 in order to facilitate the operation of cut-ting and lifting the tear strip portion llo ~he size and r .~ shape of the knob 13 may be the same as those described hereinabove with regard to knob 9 shown in Figures 2 and 30 In the embodiment shown in Figures 5 and 6, a reinforcing rib 15 may be provided in order to prevent the ` breakage of a weak bridging portion 14 near the non-continuous portion 12 of the tear strip portion 11 during the lifting of the tear strip portion 11 and the center panel portion 60 ~he tear strip portion 11 is wedge-shaped in Figure 35~6 57 but this shape is not limitativeO For example, various shapes shown in (~)~ (B) and (C) in Figure 7 may be em-ployedO For example, as shown in (A) of Figure 7, one end of V-shaped breakable line 10 is connected to the breakable line 8, an~ -the other end terminates halfways in the center panel portion 6 leaving some bridging por-tion 140 Alterna-tively, as shown in Figure 7~ (B) and (C), one end of a convoluted or S--shaped breakable line 10 is connected to the breakable line ~, and the other end terminates at the central par-t of the center panel portion 6 of the gasketO
Of course~ a knob 13 may be provided at the tip portion of -the tear s~trip portion surrounded by the break-able line 10, as shown by a dotted line in each of (A), (B) and (C) of Figure 7O
The gasket of the various shapes described here-inabove is applied to the inner bottom surface of a closure sh~ll by the ordinary molding methodO Molding can be per-formed easily by using a molding punch which has a projec-tion or a depression for forming a breakable line and as required, a knob or rib on its surfaceO
According to the closure of this invention, only the center panel portion of the gasket is separated and removed~ and the peripheral sealing portion remains firmly adhered to the inner bottom surface of the closure shellO
Thus~ even after the center panel portion has been separated for determining the indication of a pri7e offer, the closure can be used for re-sealingO mhe closure of this invention can therefore be used widely for large-capacity containers with the indication of a pri~e offer for sales promotionO
s~
When the closure of the invention is used for return~ble bottles7 it has the advantage of protecting the sealing end of the used bottles at the time of recoveryO
~,
: breakable line 8, and the center panel 6 can be separated .~ 20 from the inner bottom surface 3 of the closure shell and >:, finally can be taken out of the closure shell leaving the peripheral sealing portion 70 . Since the indication of a prize offer 4 is pro-,`r vided on the inner bottom surface ~ of the closure shell which is beneath the center panel 6, it becomes visible as a result of the removal of the center panelO
In an alternative embodiment shown in ~igure 4, the indication 4 of a prize offer is printed on a lacquer layer L2 to which the gasket adheres firmly, and a lacquer .
~8556 layer ~ which is substantially non-adhering to the lacquer layer L2 is provided in an area between -the lacquer layer L2 and the inner bottom surface of the closure shell which corresponds to the center panel portion 6. According to this embodiment, the lacquer layer L2 breaks at the part shown by dotted line in the drawing by the operation of separating -the center panel portion 5, and is thus lifted together with the center panel portion 6O Consequently, the indication 4 of a prize offer is transferred to the back surface of the center panel 6~ and removed from the closure shellO rlhe center panel portion 6 having the indication 4 of pri%e offer so transferred can be directly used for the purpose of assigning the prizeD
In order to obviate the use of a tool for separat-ing the center panel portion 6 or to render the separation easier, a knob 9 may be provided at a part of the periphery of the center panel as shown by a dotted l.ine in Figures 2 and 3O rrhe shape and size of the knob 9 are not critical, and it may be of such a size and shape which permit hold-ing by fingersO Advantageously, it has a height of about 2 to 5 mm, and a maximum diameter of about 2 to 5 mm, although the dimensions may vary according to the size of the closure shellO The shape of -the knob 9 ~ay, for example, be dome-like,. spherical, sylindrical, o~ rectangular piller-shapedO
According to a preferred embodiment to be des-cribed hereinbelow with reference to Figures 5 and 6, a tear strip portion which can be cut and lifted by being partially defined by a breakable line may be provided in the center panel in order to faci.litate the separation of ~108556 the center panelO
Referring to Figures 5 and 6, a tear strip por-tion 11 capable of being cut and lifted by a breakable line 10 is formed in the center panel portion 6 of gasket 50 ~he tear strip portion 11 is only partly surrounded by the breakable line 10, and is integrated with the remainder of ~ the center panel portion 6 of th.e gasket at a non-continuous ; portion 12 of the breakable line lOo ~he breakable line 10 : ~ may be any of a score, slit or perforation line as described ~: 10 hereinabove with regard to the breakable line 80 In operation, the tear strip portion 11 of the closure shown in Figures 5 and 6 is cut and lifted by a finger nail or a tool, and is further lifted by holding it ~ with fingersO Since the tear strip portion 11 is integratedF 15 with the center panel portion 6 at the non-continuous por-i~,~ . .
~ tion 12, the entire center panel portion 6 can be separated ~`~ :;:
~ from the closure by this operationO
~J ::
Desirably, a l~nob 13 is provided at the tip portion `~ of the tear strip portion 11 as shown by a dotted line in Figures 5 and 6 in order to facilitate the operation of cut-ting and lifting the tear strip portion llo ~he size and r .~ shape of the knob 13 may be the same as those described hereinabove with regard to knob 9 shown in Figures 2 and 30 In the embodiment shown in Figures 5 and 6, a reinforcing rib 15 may be provided in order to prevent the ` breakage of a weak bridging portion 14 near the non-continuous portion 12 of the tear strip portion 11 during the lifting of the tear strip portion 11 and the center panel portion 60 ~he tear strip portion 11 is wedge-shaped in Figure 35~6 57 but this shape is not limitativeO For example, various shapes shown in (~)~ (B) and (C) in Figure 7 may be em-ployedO For example, as shown in (A) of Figure 7, one end of V-shaped breakable line 10 is connected to the breakable line 8, an~ -the other end terminates halfways in the center panel portion 6 leaving some bridging por-tion 140 Alterna-tively, as shown in Figure 7~ (B) and (C), one end of a convoluted or S--shaped breakable line 10 is connected to the breakable line ~, and the other end terminates at the central par-t of the center panel portion 6 of the gasketO
Of course~ a knob 13 may be provided at the tip portion of -the tear s~trip portion surrounded by the break-able line 10, as shown by a dotted line in each of (A), (B) and (C) of Figure 7O
The gasket of the various shapes described here-inabove is applied to the inner bottom surface of a closure sh~ll by the ordinary molding methodO Molding can be per-formed easily by using a molding punch which has a projec-tion or a depression for forming a breakable line and as required, a knob or rib on its surfaceO
According to the closure of this invention, only the center panel portion of the gasket is separated and removed~ and the peripheral sealing portion remains firmly adhered to the inner bottom surface of the closure shellO
Thus~ even after the center panel portion has been separated for determining the indication of a pri7e offer, the closure can be used for re-sealingO mhe closure of this invention can therefore be used widely for large-capacity containers with the indication of a pri~e offer for sales promotionO
s~
When the closure of the invention is used for return~ble bottles7 it has the advantage of protecting the sealing end of the used bottles at the time of recoveryO
~,
Claims (4)
1. A closure for sales promotion comprising a closure shell having the indication of a prize offer on its inner bottom surface and a gasket bonded to its inner bottom surface, the gasket having a center panel portion held half-adhered to the inner bottom surface of the closure shell or held non-adhering and a peripheral seal-ing portion firmly adhered to the inner bottom surface of the closure shell, the center panel portion being completely defined from the peripheral sealing portion by a breakable line so that the center panel portion can be stripped off from the inner bottom surface of the closure shell while leaving the peripheral sealing portion.
2. The closure of claim 1 wherein the center panel portion has a knob at its peripheral edge.
3. The closure of claim 1 wherein the center panel portion further has a tear strip portion which is formed by defining it partly by a breakable line and. can be cut and lifted.
4. The closure of claim 3 wherein the tear strip has a knob at its forward end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA295,282A CA1108556A (en) | 1978-01-19 | 1978-01-19 | Bottle closure for sales promotion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA295,282A CA1108556A (en) | 1978-01-19 | 1978-01-19 | Bottle closure for sales promotion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1108556A true CA1108556A (en) | 1981-09-08 |
Family
ID=4110576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA295,282A Expired CA1108556A (en) | 1978-01-19 | 1978-01-19 | Bottle closure for sales promotion |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1108556A (en) |
-
1978
- 1978-01-19 CA CA295,282A patent/CA1108556A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |