Dispensing – With cutter and/or punch – To form dispensing opening in container
Reexamination Certificate
2007-04-24
2007-04-24
Derakshani, Philippe (Department: 3754)
Dispensing
With cutter and/or punch
To form dispensing opening in container
Reexamination Certificate
active
10516444
ABSTRACT:
The self-opener closure comprises a spout (2) having a projecting lower rim (9) which is to be molded or glued to a composite packaging, an associated rotary cap (1) as well as a self-opener sleeve (3) arranged within the spout (2). This self-opener sleeve (3) can be made to rotate by the rotary cap (1). The inner side of the spout (2) is provided with four guide webs having varying inclines arranged over its inner circumference. These interact with specially formed guide ribs at the outer wall of the self-opener sleeve (3), which brings about that the self-opener sleeve (3), when continuously rotated in the inside of the spout (2), and by being guided at these guide ribs, describes an uneven downwardly directed movement, which superposes its rotational movement. Thus, the self-opener sleeve (3) first pierces the paper or cardboard laminate with the tip (24) of its lancing mandrel in a steep, screwline downwardly directed movement, and thereafter completes a horizontal rotational movement about 340°, whilst it cuts a circular disk out of the laminate with its sharp cutting edge, and thereafter pivots this downwards and retains it in this position.
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patent: 1088764 (2001-04-01), None
patent: WO 95/05996 (1995-03-01), None
Derakshani Philippe
Schindler Edwin D.
SIG Technology Ltd.
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