Improved twist-off closure

B - Operations – Transporting – 65 – D

Patent

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Details

B65D 41/10 (2006.01) B65D 41/12 (2006.01) B65D 41/14 (2006.01)

Patent

CA 2327515

A twist-off closure (10) for use with a bottle having a neck (11), a lip (12) and a ledge (14) surrounding the neck (11) and a plurality of ramp sections (16). The closure (10) includes a top wall (20), a skirt (21) and a plurality of tabs (26) extending from the bottom edge of the skirt (21). The tabs (26) are T-shaped and include a cross arm (28) extending adjacent to the free end of the stem (27). The cap (10) is made from a steel sheet (32) coated with tin (33) and a varnish or lacquer layer (34) with the edges of the cap (10) being formed by pinch trimming so that a corrosion-resistant layer of tin substantially covers the edges.

L'invention se rapporte à une capsule quart de tour (10) conçue pour être utilisée sur une bouteille munie d'un col (11), d'une lèvre (12) et d'un rebord (14) entourant ledit col (11), ainsi que d'une pluralité de sections inclinées (16). Cette capsule (10) comporte une paroi supérieure (20), une jupe (21) et une pluralité de languettes (26) en saillie à partir du bord inférieur de la jupe (21). Les languettes (26) sont en forme de T et comportent un bras transversal (28) disposé de façon adjacente à l'extrémité libre de leur tige (27). Ladite capsule (10) est fabriquée dans une feuille d'acier (32) recouverte d'étain (33) et d'une couche (34) de vernis ou de laque. Ses bords sont formés au moyen d'un détourage par pincement de sorte que la couche d'étain qui résiste à la corrosion les recouvre sensiblement.

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