EP0133348A1
Expired / Lapsed
EP
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Improvements in tamper-resistant container assembly
Assignee: Glasgow Royal Infirmary
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Filing: 1984-07-11
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Granted: —
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Expires: 2004-07-11
Abstract
Abstract A tamper-resistant screw cap and container body assembly has a cap (1) which is connected to a safety band (5) which can turn with the cap (1) when the cap is being screwed on to the container body (12) but which is held against turning when the cap is being screwed off, by the engagement of discontinuous ratchet-shaped inner beads (9) on the cap (1) with discontinuous ratchet-shaped outer beads (16) on the container body (12) beneath a continuous outer retaining bead (16A).
Inventors
- 👤 Eugene Edward Davis
- 👤 Richard James Searle
- 👤 Kevin William Mclaren
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 10:37
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/32; B65D41/34; B65D41/3404; B65D41/3409; B65D41/3414
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
67 words
A tamper-resistant screw cap and container body assembly wherein the cap is connected to a safety band which can turn with the cap when the cap is being screwed on to the container body but which is held against turning when the cap is being screwed off, by the engagement of discontinuous ratchet-shaped inner beads on the cap with discontinuous ratchet-shaped outer beads on the container body.
Claim 2
Dependent Claim
67 words
A tamper-resistant screw cap and container body assembly wherein the cap is connected to a safety band which can turn with the cap when the cap is being screwed on to the container body but which is held against turning when the cap is being screwed off, by the engagement of discontinuous ratchet-shaped inner beads on the cap with discontinuous ratchet-shaped outer beads on the container body.
Claim 3
Dependent Claim
136 words
A tamper-resistant container assembly comprising a closure and a body wherein the closure has a top, a depending skirt with an internal screw thread, teeth at the lower edge of the skirt, a safety band below the skirt, frangible tell-tale means connecting the skirt to the safety band, teeth on the upper edge of the safety band and a plurality of discontinuous inner beads on the safety band and wherein the container body has a mouth, a neck below the mouth, an external screw thread on the neck, a continuous outer bead below the thread and a plurality of discontinuous outer beads below the continuous outer bead, characterised in that the inner beads cooperate with the outer beads like a ratchet mechanism to restrain the safety band against angular movement when the closure is being unscrewed.
Claim 4
Dependent Claim
136 words
A tamper-resistant container assembly comprising a closure and a body wherein the closure has a top, a depending skirt with an internal screw thread, teeth at the lower edge of the skirt, a safety band below the skirt, frangible tell-tale means connecting the skirt to the safety band, teeth on the upper edge of the safety band and a plurality of discontinuous inner beads on the safety band and wherein the container body has a mouth, a neck below the mouth, an external screw thread on the neck, a continuous outer bead below the thread and a plurality of discontinuous outer beads below the continuous outer bead, characterised in that the inner beads cooperate with the outer beads like a ratchet mechanism to restrain the safety band against angular movement when the closure is being unscrewed.
Claim 5
Dependent Claim
38 words
A tamper-resistant container assembly according to claim 2 characterised in that the discontinuous inner beads are of ratchet shape each bead having a lead-in ramp at one end and an abrupt shoulder or stop at the other end.
Claim 6
Dependent Claim
44 words
A tamper-resistant container assembly according to claim 3 characterised in that the discontinuous outer beads are also of ratchet shape each bead having a lead-in ramp and an abrupt shoulder or stop facing in a direction opposite to the stop on the inner beads.
Claim 7
Dependent Claim
20 words
A screw cap including inner discontinuous ratchet shaped beads for use in an assembly according to claim 1 or 2.
Claim 8
Dependent Claim
20 words
A container body including outer discontinuous ratchet shaped beads for use in an assembly according to claim 1 or 2.
Claim 9
Dependent Claim
33 words
A tamper-resistant container assembly according to claim 2 characterised in that the teeth on the lower edge of the skirt and the teeth on the upper edge of the band are pointed teeth.
Claim 10
Dependent Claim
47 words
A tamper-resistant container assembly according to claim 2 characterised in that the teeth on the lower edge of the skirt and the teeth on the upper edge of the band are large substantially ratchet shaped teeth, there being one pair of teeth between adjacent frangible tell-tale means.
Claim 11
Dependent Claim
50 words
A tamper-resistant container assembly according to claim 2 characterised in that the teeth on the lower edge of the skirt and the teeth on the upper edge of the band are larger substantially ratchet shaped teeth, there being two or more pairs of teeth between adjacent frangible tell tale means.
References Cited (Backward Citations)
FR1536459A
Cited
FR1581775A
Cited
FR2229620A1
Cited
US4062466A
Cited
EP0080846A1
Cited
GB2125382A
Cited
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