Tamper-evident closure
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United States of America Patent
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-
Jan 15, 1991
Grant Date -
N/A
app pub date -
Mar 22, 1989
filing date -
Sep 24, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The mouth of a rigid container, particularly of glass, having a screw closure device and usable for food products intended to be subjected to heat treatment in the container to preserve them, is provided with an annular rib of triangular profile below the threading. Screwed onto the mouth is a rigid plastic capsule having a plastic mastic sealing coating on the inner surface of its top and incorporating in its peripheral skirt a tearing band for opening. The lower part of the cylindrical skirt of the capsule constitutes a security seal and has an inner annular engagement rib which snap-engages beneath the annular rib of the mouth.
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