← Back to Patent Explorer
EP0120644A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Improved closure

Assignee: Glasgow Royal Infirmary
•
Filing: 1984-03-13
•
Granted: —
•
Expires: 2004-03-13
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A closure for closing the mouth of a container having a screw neck finish, the closure comprising an inner part adapted to interengage with the screw neck of the container, an outer partto be applied overthe inner part when in position on a container and including a depending skirt connected to anchor means by tearable or frangible means, and drive means on the inner and outer parts of the closure which are interengageable with one another is use to allow the inner part to be unscrewed from a container only once the anchor means has been separated from the depending skirt and only be relative axial movement between the outer and inner parts during unscrewing whereby the closure closure is tamper-resistant until separation of the anchor means and child-resistant thereafter.

Inventors

  • 👤 Eugene Edward Davis

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-04 14:51
CPC Classifications
B; B65; B65D; B65D50/00; B65D50/02; B65D50/04; B65D50/041

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 130 words
A closure for closing the mouth of a container having a screw neck finish, the closure comprising an inner part adapted to interengage with the screw neck of the container, an outer part to be applied over the inner part when in position on a container and including a depending skirt connected to anchor means by tearable or frangible means, and drive means on the inner and outer parts of the closure which are interengageable with one another in use to allow the inner part to be unscrewed from a container only once the anchor means has been spearated from the depending skirt and only by movement relative axiavbetween the outer and inner parts during unscrewing whereby the closure is tamper-resistant until separation of the anchor means and child-resistant thereafter.
Claim 2
Dependent Claim 130 words
A closure for closing the mouth of a container having a screw neck finish, the closure comprising an inner part adapted to interengage with the screw neck of the container, an outer part to be applied over the inner part when in position on a container and including a depending skirt connected to anchor means by tearable or frangible means, and drive means on the inner and outer parts of the closure which are interengageable with one another in use to allow the inner part to be unscrewed from a container only once the anchor means has been spearated from the depending skirt and only by movement relative axiavbetween the outer and inner parts during unscrewing whereby the closure is tamper-resistant until separation of the anchor means and child-resistant thereafter.
Claim 3
Dependent Claim 52 words
A closure according to claim 1 wherein the depending skirt of the outer part of the closure is connected to an anchor band by a removable tear band, the anchor band being retained.on the container after removal of the tear band as a visual indication that the tear band has been removed.
Claim 4
Dependent Claim 32 words
A closure according to claim 1 wherein an anchor band is secured directly to the depending skirt of the outer part by tearable means in the form of a line of weakness.
Claim 5
Dependent Claim 109 words
A container/closure assembly comprising a container having a screw neck finish and annular anchor bead, and a closure comprising an inner cap screwed to the container, an outer cap applied over the inner cap and having a depending skirt, an anchor band anchored to the anchor bead on the container, and a removable tear band between the depending skirt and the anchor band, and interengageable drive means on the inner and outer cap prevented from interengagement until the tear band has been torn away and then only by relative axial movement between the caps whereby the closure is tamper-resistant until removal of the tear band and is child-resistant thereafter.
Claim 6
Dependent Claim 109 words
A container/closure assembly comprising a container having a screw neck finish and annular anchor bead, and a closure comprising an inner cap screwed to the container, an outer cap applied over the inner cap and having a depending skirt, an anchor band anchored to the anchor bead on the container, and a removable tear band between the depending skirt and the anchor band, and interengageable drive means on the inner and outer cap prevented from interengagement until the tear band has been torn away and then only by relative axial movement between the caps whereby the closure is tamper-resistant until removal of the tear band and is child-resistant thereafter.
Claim 7
Dependent Claim 34 words
A closure according to claim 2 wherein the tear band has a tear tab to assist in manipulation of the band and wherein the tear tab includes tamper-evident bridge members between the respective parts.
Claim 8
Dependent Claim 32 words
A closure according to claim 2 or 3 wherein the anchor band has an internal annular groove for engagement with an annular bead of wedge-shaped cross-section on the outside of the container.
Claim 9
Dependent Claim 44 words
A closure according to any of the preceding claims wherein the inner cap and the outer cap are interengageable by means of opposed driving dogs respectively on the top of the inner cap and on the underside of the top of the outer cap.
Claim 10
Dependent Claim 43 words
A closure according to claim 7 with cooperating annular beads respectively on the outside of the depending skirt of the inner cap and on the inside of the skirt of the outer cap to prevent the two caps being separated from one another.
Claim 11
Dependent Claim 34 words
A closure according to any of the preceding claims wherein the top of the outer cap has an annular channel bridged by frangible nibs adapted to break when the outer cap is pressed down.
Claim 12
Dependent Claim 82 words
A closure having an inner cap for closing the mouth of a container, an outer cap for.locking the closure to the container by removable tamper-resistant means, the outer cap being interengageable with the inner cap on removal of the tamper-resistant means and by pressing the outer cap against the inner cap such that the inner cap may then be released from the container by manipulation of the outer cap, the closure being tamper-resistant until removal of the tamper-resistant means and thereafter child-resistant.
Claim 13
Dependent Claim 82 words
A closure having an inner cap for closing the mouth of a container, an outer cap for.locking the closure to the container by removable tamper-resistant means, the outer cap being interengageable with the inner cap on removal of the tamper-resistant means and by pressing the outer cap against the inner cap such that the inner cap may then be released from the container by manipulation of the outer cap, the closure being tamper-resistant until removal of the tamper-resistant means and thereafter child-resistant.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag