Tamper indicating composite tape closure
AssigneeMinnesota Mining and Manufacturing Company
InventorRichard A. Patterson
Life of this patent
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Abstract
A tape closure system for a can end having a portion thereof adhered to the can end about a pour opening, a plait formed in the free end of said tape and a sealing tape to hold the tape in folded position until sufficient force is applied to the free end of the tape to tear the sealing tape providing thereby an indication that the closure has been tampered with earlier.
Claims7
A tape closure for a can end formed of metal and having a pour opening, said closure comprising an exterior closure tape having a portion thereof adapted to adhere to the can end and cover a said pour opening, one end of said exterior tape being free of the can end, means on said free end defining a pull tab, said exterior closure tape being folded to form a plait in the tape to shorten said free end, and a sealing tape adhered to said exterior closure tape along said plait to maintain said tape in a folded condition, said sealing tape being formed to tear upon excessive tensional force being applied to said pull tab in a direction transverse to said plait to open said plait.
Dependencies are inferred from the claim text.