Tamper evident closure
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 29, 1990
Grant Date -
N/A
app pub date -
May 4, 1989
filing date -
May 4, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The tamper evident closure is a resilient closure which is snap fit onto a container. The resilient closure has an end wall with a plurality of transverse grooves. A resin is deposited on the top surface of the end wall and into the grooves. If the closure is moved away from the container, the top layer of resin and a portion of the resin in the grooves will fracture, thus indicating to the consumer that tampering with the container has occurred. A portion of the resin will remain in the grooves to indicate that the resin was applied when the closure was initially sealed. In another embodiment, the closure comprises a rotatable portion and a fixed portion. The rotatable and fixed portion have grooves which contain a resin. When the rotatable portion is pivoted away fromt he fixed portion to open the container, a portion of the resin fractures, thus indicating tampering with the container. A portion of the resin also remains in the grooves.
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