Screw cap with anti-tamper strip

Details Screw cap with anti-tamper strip Screw cap with anti-tamper strip

1999-01-13

2000-09-12

Moy, Joseph M.

Receptacles

Closures

Pivotally or slidably mounted semispherical hood-type closure

B65D 4134

Patent

active

061164518

ABSTRACT:
A plastic anti-tamper strip (3) is provided at the lower edge of a screw cap (1). Bridges (20) form an approximately horizontal nominal rupture line, along which the anti-tamper strip can be separated from the screw cap (1) when a container, closed by said screw cap, is opened for the first time. A bead (8) is provided on the screw cap (1) which engages interlockingly with a bead (4) on the container mouth (2). The anti-tamper strip (3) also possesses at least one approximately vertical nominal rupture point (11). Adjacent to the nominal rupture point (11), a relief zone is provided, the stretchability of which increases towards the lower edge (19) of the anti-tamper strip (3).

REFERENCES:
patent: 4278180 (1981-07-01), Willis
patent: 5111947 (1992-05-01), Patterson
patent: 5248050 (1993-09-01), Janousch et al.
patent: 5295600 (1994-03-01), Kowal
patent: 5540342 (1996-07-01), Rathbun
patent: 5893474 (1999-04-01), Herrmann et al.

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