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Flask cap

Image Number 5 for United States Patent #5257705.

An inviolable cap for a flask which provides proof when tampered with. The cap has an interconnecting wall in a region where the body and the band of the cap adjoin one another. The wall includes a plurality of cut segments aligned in a circular fashion thereabout separated by a plurality of transverse interruptions, with one of the interruptions being at least twice as long as any of the cut segments and the rest of the transverse interruptions being substantially shorter than any of the cut segments. The band further includes a vertical cut with vertical interruptions. A projection on the band fits about a collar on the flask. When the cap is unscrewed, the shorter transverse and the vertical interruptions sever.

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