Anti-tamper closure
AssigneeGuala Closures S.p.A.
InventorPiero Battegazzore
Life of this patent
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Abstract
The present invention relates to an anti-tamper closure (1, 1′) for threaded bottles (100, 100′) comprising an outer cap (20, 20′) and an outer skirt (22, 22′) which is connected to the outer cap (20, 20′) prior to initial opening, and an inner cap (30, 30′) and an inner annular element (32, 32′) which is connected to the inner cap (30, 30′) prior to initial opening, in which the inner annular element (32, 32′) is connected to the inner cap (30, 30′) with respect to both rotation and translation by inner connection means (31, 31′) which render the inner annular element (32, 32′) free to rotate and to translate relative to the inner cap (30, 30′) after initial opening.
Claims22
An anti-tamper closure for containers having a neck and a mouth with an outer thread on the neck and with a projection disposed below the thread, the closure comprising:
- an outer capsule comprising an outer cap and an outer skirt, and
- an inner pre-threaded element suitable for closing the mouth of the container, comprising an inner cap having an inner thread suitable for engaging the outer thread of the container and an inner annular element,
- in which:
- the outer cap is connected to the inner cap in a manner such as to allow the closure to be opened and closed normally,
- the outer skirt is connected to the outer cap by outer connection means which, after initial opening, render the outer skirt free to rotate and to translate relative to the outer cap,
- the inner annular element is connected to the inner cap by inner connection means which, after initial opening, render the inner annular element free to rotate and to translate relative to the inner cap,
- the inner annular element is connected to the outer skirt with respect to translation by retaining means projecting inside the closure, and
- the outer skirt extends longitudinally towards the container beyond the retaining means.
A method of producing an anti-tamper closure for containers having a neck and a mouth with an outer thread on the neck and with a projection disposed below the thread, the closure comprising:
- an outer capsule comprising an outer cap and an outer skirt, and
- an inner pre-threaded element suitable for closing the mouth of the container, comprising an inner cap having an inner thread suitable for engaging the outer thread of the container and an inner annular element,
- in which:
- the outer cap is connected to the inner cap in a manner such as to allow the closure to be opened and closed normally;
- the outer skirt is connected to the outer cap by outer connection means which, after initial opening, render the outer skirt free to rotate and to translate relative to the outer cap,
- the inner annular element is connected to the inner cap by inner connection means which, after initial opening, render the inner annular element free to rotate and to translate relative to the inner cap,
- the inner annular element is connected to the outer skirt with respect to translation by retaining means projecting inside the closure, and
- the outer skirt extends longitudinally towards the container beyond the retaining means, the method, comprising the steps of:
- producing the outer capsule,
- producing the inner pre-threaded element, and
- inserting the inner pre-threaded element in the outer capsule,
- without comprising any manufacturing step after the insertion step.
Dependencies are inferred from the claim text.