Closure cap with anti-tamper strip

Details Closure cap with anti-tamper strip Closure cap with anti-tamper strip

1996-01-05

1998-07-07

Cronin, Stephen

Bottles and jars

Closures

Frangible member or portion

B65D 4134

Patent

active

057755272

ABSTRACT:
A closure cap with a tearable anti-tamper strip (3) have flaps (5) which extend radially inwards from the inside surface of the anti-tamper strip towards the cap base. With the closure cap in position on the container mouth, these flaps (5) engage beneath a circumferential bead (6) on the container mouth. In order to enhance the stability and resistance to bending of the flaps, their lateral edge areas (7) are directed inwards in such a way that, at least one position, they possess a lesser distance in relation to the cap axis than the flap centres (8). The facing surface (11) of the flaps (5) is directed towards the cap base (1) and is inclined towards the cap axis so that, on opening of the closure, the effective force (F) impinges on the centre of the flap relatively far out. The centre of the flaps (8) is here preferaly designed to be thicker than its lateral edge area (7).

REFERENCES:
patent: 4511053 (1985-04-01), Brandes et al.
patent: 4694969 (1987-09-01), Granat
patent: 4801030 (1989-01-01), Barriac
patent: 4801031 (1989-01-01), Barriac
patent: 5107998 (1992-04-01), Zumbuhl
patent: 5131550 (1992-07-01), Thompson
patent: 5400913 (1995-03-01), Kelly

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