Safety screw closure
Pilfer-proof closure for containers
Tamperproof bottle closure cap
Threaded plastic bottle cap
Tamper proof closure
Tamper-evident plastic closure Patent #: 4461390
ApplicationNo. 06/628651 filed on 07/06/1984
US Classes:215/252, Twist-off motion frees reusable closure215/258Closure removal causes portion thereof to remain with receptacle
ExaminersPrimary: Pollard, Steven M.
Attorney, Agent or Firm
International ClassB65D 41/34 (20060101)
AbstractA tamper-evident closure adapted for assembly with a container includes a band which, upon first opening, completely separates from a cap portion and which, upon reclosing the container with the cap, is dislodged from engagement with the container to insure that the band falls freely around a neck portion of the container to provide a substantial space between the cap and the band and thereby provide readily discernible evidence that the container has been previously opened.