Stopper with an obstuctor for a can and method for the production of said stopper
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United States of America Patent
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Sep 13, 2011
Grant Date -
Sep 14, 2006
app pub date -
Jul 8, 2003
filing date -
Feb 11, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The invention relates to a stopper, provided with an obstructor (1), for a can. Said stopper comprises a cap (3) provided with a central opening (5) and an annular skirt (7), and an annular shaft (17) extending around the opening, in addition to a capsule (19) which is detachably fixed, by means of a tear element (23), to a free edge (25) of the shaft opposite the opening. The tear element joining the shaft to the capsule is placed in an entrance area at an angle in the free edge of the shaft. At least one sealing lip (37) is disposed on the inner surface of the shaft, and the cap, skirt and capsule of the stopper are molded in a single piece without any welding or the addition of another component or detachable part. The invention also relates to a method for the production of said stopper by offset injection in a region which is outside the cap.
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