Title of Invention	A SECURITY CLOSURE
Abstract	A security closure (1) for a glass bottle (2), which can be fitted on the bottle (2) quickly and can be manipulated conveniently, comprises a cap (3) having internal threading (16) with a predetermined large number of starts mating with external threading (17) on the bottle (2), the cap being connected, by means of a line of weakening (10) , to a sleeve (11) restrained axially and angularly on the bottle (2) , the closure further comprising lead-in means (20) in the sleeve (11) mating with matching lead-in means (21) on the bottle (2) in order to orient the cap (3) and the sleeve (11) angularly relative to the bottle (2) when the cap (3) and the sleeve (11) are fitted axially on the bottle (2) • (Figure 1)

Title of Invention

A SECURITY CLOSURE

Abstract

A security closure (1) for a glass bottle (2), which can be fitted on the bottle (2) quickly and can be manipulated conveniently, comprises a cap (3) having internal threading (16) with a predetermined large number of starts mating with external threading (17) on the bottle (2), the cap being connected, by means of a line of weakening (10) , to a sleeve (11) restrained axially and angularly on the bottle (2) , the closure further comprising lead-in means (20) in the sleeve (11) mating with matching lead-in means (21) on the bottle (2) in order to orient the cap (3) and the sleeve (11) angularly relative to the bottle (2) when the cap (3) and the sleeve (11) are fitted axially on the bottle (2) • (Figure 1)

Full Text	The present invention relates to a security closure for a bottle comprising a cap having internal threading mating with external threading on the bottle, the cap being connected, by means of a line of weakening, to a sleeve restrained angularly and axially on the bottle. As is known, there is a need to provide evidence that a bottle has been opened so that someone does not purchase a bottle which has previously been opened by an unauthorized person. Closures are known, in which the cap and the sleeve are formed integrally from aluminium sheet and are fitted on the bottle together and made to adhere to the bottle by rolling, causing the cap to marry with the threading of the bottle, which is often coarse threading, particularly if the bottle is moulded from glass and, at the same time, restraining the sleeve on the bottle. The fitting of these closures requires complex tooling. Moreover, they do not fully sat i sfy the user since, starting from the first time they are unscrewed and on every subsequent occasion when they are screwed up and unscrewed, the the cap jams and sticks and in any case is manipulated with far from the desirable smoothness. Closures in which the cap and the sleeve are formed integrally of plastics material have also been proposed. In these closures, the cap is manipulated with convenient smoothness during unscrewing and screwing-up. The fitting of these closures, however, is labourious and requires complex tooling which has to apply the single element of plastics material to the bottle by axial fitting accompanied by rotation with predetermined synchronized coordination so that the threading of the cap can be screwed onto the threading of the bottle. The distinguishing features of the invention, having regard to the disclosure of US 3,850,328 prior art documents, are mainly dealing with the fact that, according to the invention, the sleeve and the outer surface of the bottle neck are provided with respective lead-in means. Such means cause the cap and the sleeve, when they are axially fitted on the bottle neck, to be oriented angularly so that they will result properly positioned and the threadings correctly engaged. In fact, US 3, 850,328 shows projecting teeth 18 engageable with the teeth of the annular ridge 3 of the bottle neck, but they are due only to lock the pourer body to the bottle against relative angular movements. No trace of lead-in means in thebottle to match with corresponding lead-in means in the sleeve for orientation purposes during the fitting of the closure on the bottle neck. The same considerations apply to US 5, 628,417 and to US 5, 593,055. The problem upon which the present invention is based is that of providing a security closure of the type specified which has structural and functional characteristics such as to overcome the problems mentioned above with reference to the prior art. This problem is solved by a closure of the type specified which is characterized in that the internal threading has a predetermined large number of starts, and in that lead-in means are formed in the sleeve and are mated with matching lead-in means on the bottle in order to orient the cap and the sleeve angularly relative to the bottle when the cap and the sleeve are fitted axially on the bottle. Accordingly the present invention provides a security closure for a bottle comprising a cap having internal threading mating with external threading on the bottle, the cap being connected, by means of a line of weakening, to a sleeve restrained angularly and axially on the bottle, characterized in that the internal threading has a predetermined large number of starts, and in that lead-in means are formed in the sleeve and are mated with matching lead-in means on the bottle in order to orient the cap and the sleeve angularly relative to the bottle when the cap and the sleeve are fitted axially on the bottle. Further characteristics and the advantages of the security closure according to the present invention will become clear from the following description of an embodiment thereof, given by way of non-limiting example, with reference to the appended drawings in which: Figure 1 is a partially-sectioned elevational view of a security closure according to the invention, Figure 2 is a sectioned view showing a detail of the security closure of Figure 1, on an enlarged scale, Figure 3 is a partially sectioned, exploded elevational view of the security closure of Figure 1, Figure 4 is a sectioned view, taken on the arrow IV, of a detail of a bottle for which the security closure of Figure 1 is intended, Figure 5 is a partially-sectioned elevational view of the security closure of Figure 1 at another stage of its operation. With reference to the apprended drawings, these show a combination of a security closure, generally indicated 1, and a bottle 2 for which the security closure 1 is intended, the bottle having an axis X-X, and preferably being made of moulded glass. The closure 1 comprises a cap 3 of axis X-X, comprising an outer cap 4 and an inner cap 5 restrained axially in the outer cap 4. In particular, in order to restrain of the inner cap 5 axially in the outer cap 4, axial teeth 6 and axial teeth 7, distributed circumferentially at regular intervals, are provided in the outer cap and in the inner cap, respectively. The teeth 6 and the teeth 7 define between each tooth and the next, respective spaces 6a and 7a having a width substantially equal to the width of a tooth so that the teeth 6 and 7 are arranged in mutual comb-like engagement, forming a splined coupling for prevent ing rotat ion. Mutually snap-engaged circumferential recesses 8 in the outer cap and circumferential projections 9 in the inner cap are provided for restraining the inner cap 5 axially in the outer cap 4. In the closure 1, the outer cap 4 of the cap 3 is connected by means of. a line of weakening 10 to a sleeve 11 of axis X-X which is restrained angularly and axially on the bottle 2. In particular, axial teeth 12 and axial teeth 13, distributed circumferentially at regular intervals in the sleeve 11 and on the bottle 2, respectively, are provided for restraining the sleeve 11 angularly on the bottle 2. The teeth 12 and the teeth 13 define between each tooth and the next respective spaces 12a and 13a having a width substantially equal to the width of a tooth so that the teeth 12 and 13 are arranged in mutual comb-like engagement, forming a splined coupling for preventing rotation. A circumferential projection 14 inside the sleeve and a collar 15 on the bottle, which are mutually snap-engaged, are provided for restraining the sleeve axially on the bottle 2. It should be noted that the axial teeth 12 of the sleeve are aligned axially with the axial teeth 6 of the outer cap. The outer cap 4 and the sleeve 11 are formed integrally by injection moulding of a suitable plastics material, for example, polypropylene. The inner cap 5 is made by injection moulding of a suitable plastics material, for example, polyethylene. The combination according to the invention is provided with a threaded coupling defined by internal threading 16 in the inner cap 5 of the cap 3 and external threading 17 on the bottle 2. The internal threading 16 comprises a predetermined large number N of starts. In the embodiment shown, it comprises eight starts and thus has eight threads 16a between which an apparent pitch PI, of 2.5 mm in the embodiment shown, is formed. The external threading 17 on the bottle 2 advantageously has half as many starts as the threading 16 and thus comprises four starts in the embodiment shown, and hence four threads 17a between which an apparent pitch P2 of twice the apparent pitch PI, more precisely, 5 mm in the embodiment shown, is formed. The external threading 17 on the bottle 2 preferably has a gap due to shortening of two threads 17a in two diametrally-opposed regions 18 and 19 of the bottle, these regions being disposed on the joining line of the mould from which the bottle is produced to allow the mould to be opened. A few teeth 13 of the bottle also have respective missing portions 13b to allow the mould to be opened. In order to fit the security closure 1 axially on the bottle 2 lead-in means 2 0 in the sleeve 11 and matching lead-in means 21 on the bottle 2 are provided for orienting the cap and the sleeve angularly relative to the bottle. The lead-in means 2 0 are constituted by the axial teeth 12 and by respective tips 22 with which the teeth are provided at their ends. The matching lead-in means 21 are constituted by the teeth 13 and by respective tips 23 with which the teeth are orovided at their ends. It should be noted that, in order to fit the inner cap 5 axially in the outer cap 4, matching lead-in means 24 are provided on the inner cap 5 and mate with the lead-in means 2 0 formed in the sleeve 11 in order to orient the inner cap angularly relative to the outer cap. The matching lead-in means 24 are constituted by the teeth 7 and by respective tips 25 with which the teeth are provided in the region of their ends. Owing to the predetermined large number N of starts of the internal threading, it is important to note that the number of axial teeth 6, 7, 12 and 13 is large and equal to N, that is eight, in the embodiment shown. It should be noted that, in order to reduce the non-uniformity in the thickness of the outer cap and of the sleeve as a whole, the teeth 6 are actually constituted by two axial ribs 26, and the teeth 12 are actually constituted by a longer, central axial rib 27, the end of which defines the tip 22, and by two set-back, that is shorter, lateral axial ribs 28, aligned with the axial ribs 26. The inner cap comprises an annular end portion 2 9 which projects from the outer cap 4, beyond the line of weakening 10, and has a collar 3 0 in snap-releasable engagement in a recess 31 in the sleeve. When the inner cap is fitted in the outer cap, it is disposed in a predetermined angular orientation relative to the sleeve by means of the lead-in means 20 and the matching lead-in means 24. When the cap and the sleeve together are fitted axial ly on the bottle, they are disposed in a predetermined angular orientation relative to the bottle by means of the lead-in means 2 0 and the matching lead-in means 21. These angular orientations are selected in a manner such that, when the security closure is fitted axially on the bottle, the threads 16a of the internal threading 16 of the cap are fitted securely between the threads 17a of the external threading 17 of the bottle so as to prevent thread-against-thread situations and consequent bulging of the closure, thus ensuring a perfectly cylindrical outer surface of the closure, Clearly, the large number of starts of the threaded coupling enables the necessary angular orientation to be achieved by an angular movement of small magnitude caused by the cooperation of the lead-in means and the matching lead-in means. In the embodiment shown, this angular movement amounts at most to 22°30' to one side and 22°30' to the other side. The same applies to the angular orientation which has to be achieved between the inner cap and the outer cap when the inner cap is fitted axially in the outer cap. In operation, the first time the cap is unscrewed, the line of weakening 10 is torn so that it remains evident that the bottle has been opened. During the first unscrewing of the cap, the collar 30 of the annular portion 29 of the inner cap 5 snaps out of the recess 31 in the sleeve 11. When the cap is subsequently screwed back onto the bottle, the annular portion 29 interferes with the upper end of the sleeve 11 and brings about a downward axial movement of the sleeve, providing further evidence that the bottle has been opened. The main advantage of the closure according to the present invention lies in the fact that it has achieved unusually quick application of the cap, which is simply fitted axially and, at the same time, also convenient manipulation of the cap the first time it is unscrewed and on every subsequent occasion when it is screwed-up and unscrewed. Naturally, in order to satisfy contingent and specific requirements, an expert in the art may apply to the above-described closure many modifications and variations all of which, however, are included within the scope of protection of the invention as defined by the following claims. WE CLAIM : 1. A security closure (1) for a bottle (2) comprising a cap (3) having internal threading (16) mating with external threading (17) on the bottle (2), the cap being connected, by means of a line of weakening (10), to a sleeve (11) restrained angularly and axially on the bottle (2), characterized in that the internal threading (16) has a predetermined large number of starts, and in that lead-in means (20) are formed in the sleeve (11) and are mated with matching lead-in means (21) on the bottle (2) in order to orient the cap (3) and the sleeve (11) angularly relative to the bottle (2) when the cap (3) and the sleeve (11) are fitted axially on the bottle (2). 2. The security closure as claimed in claim 1, wherein the external threading (17) has half as many starts as the internal threading (16) and twice the apparent pitch thereof 3. The security closure (1) as claimed in claim 2, wherein the external threading (16) and the external threading (17) have eight starts and four starts, respectively. 4. The security closure (1) as claimed in claim 3, wherein the external threading (17) has gaps in two diametrally-opposed regions (18, 19) of the bottle. 5. The security closure (1) as claimed in claim 1, wherein the lead-in means (20) comprise teeth (12) of predetermined width, distributed circumferentially at regular intervals in the sleeve (11) and having tips (22), a space (12a) of a width substantially equal to the width of a tooth being defined between each tooth and the next, the number of teeth (12) being equal to the number of starts of the internal threading (16). 6. The security closure (1) as claimed in claim 5, wherein each tooth (12) of the lead-in means (20) is constituted by a longer central rib (27) constituting the tip (22) of the tooth (12) and two set-back lateral ribs (28). 7. The security closure (1) as claimed in claim 5, wherein the matching lead-in means (21) comprise teeth (13) of a width substantially equal to the width of the spaces (12a) between each tooth and the next of the lead-in means (20), the teeth (13) being distributed circumferentially at regular intervals on the bottle (2) and having tips (23). 8. The security closure (1) as claimed in claim 7, wherein it comprises, in at least one tooth (13) of the matching lead-in means (21), a missing portion (13b) for permitting removal from a mould. 9. The security closure (1) as claimed in claim 1, wherein the cap (3) comprises an outer cap (4) fixed to the sleeve (11) by means of the line of weakening (10) and an inner cap (5) fitted in the outer cap (4) and having the internal threading (16), the inner cap (5) being restrained angularly and axially in the outer cap (4) and having matching lead-in means (24) mating with the lead-in means (20) of the sleeve (11) in order to orient the inner cap (5) relative to the outer cap (4) when the inner cap (5) is fitted axially in the outer cap (4). 10. The security closure (1) as claimed in claim 9, wherein the matching lead-in means (24) of the inner cap (5) comprise teeth (7) of a width substantially equal to the width of the spaces (12a) between each tooth and the next of the lead-in means (20) of the sleeve (11), the teeth (7) being distributed circumferentially at regular intervals and having tips (25). 11. The security closure (1) as claimed in claim 10, wherein the inner cap (5) comprises an annular end portion (29) projecting from the outer cap (4), beyond the line of weakening (10), and having a collar (30) in the snap-releasable engagement in a recess (31) in the sleeve (11). 12. A security closure, substantially as herein described with reference to the accompanying drawings.

Full Text

The present invention relates to a security closure for a bottle comprising a cap having internal threading mating with external threading on the bottle, the cap being connected, by means of a line of weakening, to a sleeve restrained angularly and axially on the bottle.
As is known, there is a need to provide evidence that a bottle has been opened so that someone does not purchase a bottle which has previously been opened by an unauthorized person.
Closures are known, in which the cap and the sleeve are formed integrally from aluminium sheet and are fitted on the bottle together and made to adhere to the bottle by rolling, causing the cap to marry with the threading of the bottle, which is often coarse threading, particularly if the bottle is moulded from glass and, at the same time, restraining the sleeve on the bottle.
The fitting of these closures requires complex tooling. Moreover, they do not fully sat i sfy the user since, starting from the first time they are unscrewed and on every subsequent occasion when they are screwed up and unscrewed, the the cap jams and

sticks and in any case is manipulated with far from the desirable smoothness.
Closures in which the cap and the sleeve are formed integrally of plastics material have also been proposed. In these closures, the cap is manipulated with convenient smoothness during unscrewing and screwing-up. The fitting of these closures, however, is labourious and requires complex tooling which has to apply the single element of plastics material to the bottle by axial fitting accompanied by rotation with predetermined synchronized coordination so that the threading of the cap can be screwed onto the threading of the bottle.
The distinguishing features of the invention, having regard to the disclosure of US 3,850,328 prior art documents, are mainly dealing with the fact that, according to the invention, the sleeve and the outer surface of the bottle neck are provided with respective lead-in means. Such means cause the cap and the sleeve, when they are axially fitted on the bottle neck, to be oriented angularly so that they will result properly positioned and the threadings correctly engaged.
In fact, US 3, 850,328 shows projecting teeth 18 engageable with the teeth of the annular ridge 3 of the bottle neck, but they are due only to lock the pourer body to the bottle against relative angular movements. No trace of lead-in means in thebottle to match with corresponding lead-in means in the sleeve for orientation purposes during the fitting of the closure on the bottle neck. The same considerations apply to US 5, 628,417 and to US 5, 593,055.

The problem upon which the present invention is based is that of providing a security closure of the type specified which has structural and functional characteristics such as to overcome the problems mentioned above with reference to the prior art.
This problem is solved by a closure of the type specified which is characterized in that the internal threading has a predetermined large number of starts, and in that lead-in means are formed in the sleeve and are mated with matching lead-in means on the bottle in order to orient the cap and the sleeve angularly relative to the bottle when the cap and the sleeve are fitted axially on the bottle.

Accordingly the present invention provides a security closure for a bottle comprising a cap having internal threading mating with external threading on the bottle, the cap being connected, by means of a line of weakening, to a sleeve restrained angularly and axially on the bottle, characterized in that the internal threading has a predetermined large number of starts, and in that lead-in means are formed in the sleeve and are mated with matching lead-in means on the bottle in order to orient the cap and the sleeve angularly relative to the bottle when the cap and the sleeve are fitted axially on the bottle.
Further characteristics and the advantages of the security closure according to the present invention will become clear from the following description of an embodiment thereof, given by way of non-limiting example, with reference to the appended drawings in which:
Figure 1 is a partially-sectioned elevational view of a security closure according to the invention,
Figure 2 is a sectioned view showing a detail of the security closure of Figure 1, on an enlarged scale,
Figure 3 is a partially sectioned, exploded elevational view of the security closure of Figure 1,
Figure 4 is a sectioned view, taken on the arrow IV, of a detail of a bottle for which the security closure of Figure 1 is intended,
Figure 5 is a partially-sectioned elevational view of the security closure of Figure 1 at another stage of its operation.
With reference to the apprended drawings, these show a combination of a security closure, generally indicated 1, and a bottle 2 for which the security closure 1 is intended, the bottle having an axis X-X, and preferably being made of moulded glass.
The closure 1 comprises a cap 3 of axis X-X,

comprising an outer cap 4 and an inner cap 5 restrained axially in the outer cap 4.
In particular, in order to restrain of the inner cap 5 axially in the outer cap 4, axial teeth 6 and axial teeth 7, distributed circumferentially at regular intervals, are provided in the outer cap and in the inner cap, respectively. The teeth 6 and the teeth 7 define between each tooth and the next, respective spaces 6a and 7a having a width substantially equal to the width of a tooth so that the teeth 6 and 7 are arranged in mutual comb-like engagement, forming a splined coupling for prevent ing rotat ion. Mutually snap-engaged circumferential recesses 8 in the outer cap and circumferential projections 9 in the inner cap are provided for restraining the inner cap 5 axially in the outer cap 4.
In the closure 1, the outer cap 4 of the cap 3 is connected by means of. a line of weakening 10 to a sleeve 11 of axis X-X which is restrained angularly and axially on the bottle 2.
In particular, axial teeth 12 and axial teeth 13, distributed circumferentially at regular intervals in the sleeve 11 and on the bottle 2, respectively, are provided for restraining the sleeve 11 angularly on the bottle 2. The teeth 12 and the teeth 13 define between each tooth and the

next respective spaces 12a and 13a having a width substantially equal to the width of a tooth so that the teeth 12 and 13 are arranged in mutual comb-like engagement, forming a splined coupling for preventing rotation. A circumferential projection 14 inside the sleeve and a collar 15 on the bottle, which are mutually snap-engaged, are provided for restraining the sleeve axially on the bottle 2.
It should be noted that the axial teeth 12 of the sleeve are aligned axially with the axial teeth 6 of the outer cap.
The outer cap 4 and the sleeve 11 are formed integrally by injection moulding of a suitable plastics material, for example, polypropylene.
The inner cap 5 is made by injection moulding of a suitable plastics material, for example, polyethylene.
The combination according to the invention is provided with a threaded coupling defined by internal threading 16 in the inner cap 5 of the cap 3 and external threading 17 on the bottle 2.
The internal threading 16 comprises a predetermined large number N of starts. In the embodiment shown, it comprises eight starts and thus has eight threads 16a between which an apparent pitch PI, of 2.5 mm in the embodiment shown, is formed.

The external threading 17 on the bottle 2 advantageously has half as many starts as the threading 16 and thus comprises four starts in the embodiment shown, and hence four threads 17a between which an apparent pitch P2 of twice the apparent pitch PI, more precisely, 5 mm in the embodiment shown, is formed.
The external threading 17 on the bottle 2 preferably has a gap due to shortening of two threads 17a in two diametrally-opposed regions 18 and 19 of the bottle, these regions being disposed on the joining line of the mould from which the bottle is produced to allow the mould to be opened. A few teeth 13 of the bottle also have respective missing portions 13b to allow the mould to be opened.
In order to fit the security closure 1 axially on the bottle 2 lead-in means 2 0 in the sleeve 11 and matching lead-in means 21 on the bottle 2 are provided for orienting the cap and the sleeve angularly relative to the bottle.
The lead-in means 2 0 are constituted by the axial teeth 12 and by respective tips 22 with which the teeth are provided at their ends. The matching lead-in means 21 are constituted by the teeth 13 and by respective tips 23 with which the teeth are orovided at their ends.

It should be noted that, in order to fit the inner cap 5 axially in the outer cap 4, matching lead-in means 24 are provided on the inner cap 5 and mate with the lead-in means 2 0 formed in the sleeve 11 in order to orient the inner cap angularly relative to the outer cap.
The matching lead-in means 24 are constituted by the teeth 7 and by respective tips 25 with which the teeth are provided in the region of their ends.
Owing to the predetermined large number N of starts of the internal threading, it is important to note that the number of axial teeth 6, 7, 12 and 13 is large and equal to N, that is eight, in the embodiment shown.
It should be noted that, in order to reduce the non-uniformity in the thickness of the outer cap and of the sleeve as a whole, the teeth 6 are actually constituted by two axial ribs 26, and the teeth 12 are actually constituted by a longer, central axial rib 27, the end of which defines the tip 22, and by two set-back, that is shorter, lateral axial ribs 28, aligned with the axial ribs 26.
The inner cap comprises an annular end portion 2 9 which projects from the outer cap 4, beyond the line of weakening 10, and has a collar 3 0 in snap-releasable engagement in a recess 31 in the sleeve.
When the inner cap is fitted in the outer cap,

it is disposed in a predetermined angular orientation relative to the sleeve by means of the lead-in means 20 and the matching lead-in means 24. When the cap and the sleeve together are fitted axial ly on the bottle, they are disposed in a predetermined angular orientation relative to the bottle by means of the lead-in means 2 0 and the matching lead-in means 21.
These angular orientations are selected in a manner such that, when the security closure is fitted axially on the bottle, the threads 16a of the internal threading 16 of the cap are fitted securely between the threads 17a of the external threading 17 of the bottle so as to prevent thread-against-thread situations and consequent bulging of the closure, thus ensuring a perfectly cylindrical outer surface of the closure,
Clearly, the large number of starts of the threaded coupling enables the necessary angular orientation to be achieved by an angular movement of small magnitude caused by the cooperation of the lead-in means and the matching lead-in means. In the embodiment shown, this angular movement amounts at most to 22°30' to one side and 22°30' to the other side.
The same applies to the angular orientation which has to be achieved between the inner cap and

the outer cap when the inner cap is fitted axially in the outer cap.
In operation, the first time the cap is unscrewed, the line of weakening 10 is torn so that it remains evident that the bottle has been opened.
During the first unscrewing of the cap, the collar 30 of the annular portion 29 of the inner cap 5 snaps out of the recess 31 in the sleeve 11. When the cap is subsequently screwed back onto the bottle, the annular portion 29 interferes with the upper end of the sleeve 11 and brings about a downward axial movement of the sleeve, providing further evidence that the bottle has been opened.
The main advantage of the closure according to the present invention lies in the fact that it has achieved unusually quick application of the cap, which is simply fitted axially and, at the same time, also convenient manipulation of the cap the first time it is unscrewed and on every subsequent occasion when it is screwed-up and unscrewed.
Naturally, in order to satisfy contingent and specific requirements, an expert in the art may apply to the above-described closure many modifications and variations all of which, however, are included within the scope of protection of the invention as defined by the following claims.

WE CLAIM :
1. A security closure (1) for a bottle (2) comprising a cap (3) having internal threading (16) mating with external threading (17) on the bottle (2), the cap being connected, by means of a line of weakening (10), to a sleeve (11) restrained angularly and axially on the bottle (2), characterized in that the internal threading (16) has a predetermined large number of starts, and in that lead-in means (20) are formed in the sleeve (11) and are mated with matching lead-in means (21) on the bottle (2) in order to orient the cap (3) and the sleeve (11) angularly relative to the bottle (2) when the cap (3) and the sleeve (11) are fitted axially on the bottle (2).
2. The security closure as claimed in claim 1, wherein the external threading (17) has half as many starts as the internal threading (16) and twice the apparent pitch thereof
3. The security closure (1) as claimed in claim 2, wherein the external threading (16) and the external threading (17) have eight starts and four starts, respectively.
4. The security closure (1) as claimed in claim 3, wherein the external threading (17) has gaps in two diametrally-opposed regions (18, 19) of the bottle.
5. The security closure (1) as claimed in claim 1, wherein the lead-in means
(20) comprise teeth (12) of predetermined width, distributed circumferentially
at regular intervals in the sleeve (11) and having tips (22), a space (12a) of a
width substantially equal to the width of a tooth being defined between each

tooth and the next, the number of teeth (12) being equal to the number of starts of the internal threading (16).
6. The security closure (1) as claimed in claim 5, wherein each tooth (12) of the lead-in means (20) is constituted by a longer central rib (27) constituting the tip (22) of the tooth (12) and two set-back lateral ribs (28).
7. The security closure (1) as claimed in claim 5, wherein the matching lead-in means (21) comprise teeth (13) of a width substantially equal to the width of the spaces (12a) between each tooth and the next of the lead-in means (20), the teeth (13) being distributed circumferentially at regular intervals on the bottle (2) and having tips (23).
8. The security closure (1) as claimed in claim 7, wherein it comprises, in at least one tooth (13) of the matching lead-in means (21), a missing portion (13b) for permitting removal from a mould.
9. The security closure (1) as claimed in claim 1, wherein the cap (3) comprises an outer cap (4) fixed to the sleeve (11) by means of the line of weakening (10) and an inner cap (5) fitted in the outer cap (4) and having the internal threading (16), the inner cap (5) being restrained angularly and axially in the outer cap (4) and having matching lead-in means (24) mating with the lead-in means (20) of the sleeve (11) in order to orient the inner cap (5) relative to the outer cap (4) when the inner cap (5) is fitted axially in the outer cap (4).
10. The security closure (1) as claimed in claim 9, wherein the matching lead-in means (24) of the inner cap (5) comprise teeth (7) of a width substantially equal to the width of the spaces (12a) between each tooth and the

next of the lead-in means (20) of the sleeve (11), the teeth (7) being distributed circumferentially at regular intervals and having tips (25).
11. The security closure (1) as claimed in claim 10, wherein the inner cap (5) comprises an annular end portion (29) projecting from the outer cap (4), beyond the line of weakening (10), and having a collar (30) in the snap-releasable engagement in a recess (31) in the sleeve (11).
12. A security closure, substantially as herein described with reference to the accompanying drawings.

Documents:

1198-mas-1998 abstract-duplicate.pdf

1198-mas-1998 claims-duplicate.pdf

1198-mas-1998 description (complete)-duplicate.pdf

1198-mas-1998-abstract.pdf

1198-mas-1998-claims.pdf

1198-mas-1998-correspondence others.pdf

1198-mas-1998-correspondence po.pdf

1198-mas-1998-description complete.pdf

1198-mas-1998-drawings.pdf

1198-mas-1998-form 1.pdf

1198-mas-1998-form 26.pdf

1198-mas-1998-form 3.pdf

1198-mas-1998-form 4.pdf

abs-1198-mas-1998.jpg

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Patent Number

207928

Indian Patent Application Number

1198/MAS/1998

PG Journal Number

26/2007

Publication Date

29-Jun-2007

Grant Date

02-Jul-2007

Date of Filing

02-Jun-1998

Name of Patentee

GUALA CLOSURES PATENTS B V

Applicant Address

ROKIN 55, 1012 KK AMSTERDAM.

Inventors:

#	Inventor's Name	Inventor's Address
1	PIERO BATTEGAZZORE	VIA G GALILEI, 74, 15100 ALESSANDRIA.

PCT International Classification Number

B65D41/62

PCT International Application Number

N/A

PCT International Filing date

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1	MI 97 A 001310	1997-06-03	Italy