Band with lock ring for tamper-evident cap
AssigneeContinental White Cap, Inc.
InventorDouglas G. Begley
Life of this patent
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Abstract
This relates to a tamper-evident closure cap having a tamper-evident structure for locking engagement beneath a transfer bead of a container neck finish. The closure cap includes a customary tamper-evident band which is of a diameter to freely pass over both external threads and a transfer bead of a container neck finish. In order that a bridge rupturing pressure may be applied to the tamper-evident band, there is provided a separate lock ring of a size to engage beneath the transfer bead while having an outer portion overlying the tamper-evident band to transfer pressure thereto during the removal of the closure cap. The lock ring is radially expansible to freely pass down over the threads and transfer beads during the application of the closure cap.
Claims14
A closure cap comprising a body including an end wall and a depending skirt, and tamper-evident means carried by said skirt, said tamper-evident means being in the form of a tamper-evident band releasably connected to said skirt by a plurality of circumferentially spaced rupturable bridges, said tamper-evident band having a minimum internal diameter greater than the internal diameter of said skirt with the internal diameter of said tamper-evident band being one which will clear a customary container neck finish transfer bead behind which a tamper-evident band customarily engages.
A combination of a lock ring and a closure cap having a tamper-evident band connected to a skirt of said closure cap by a plurality of depending ruptureable bridges, said lock ring being radially outwardly expansible and of an external diameter to sit on said tamper-evident band.
A lock ring for use with a closure cap having a tamper-evident band connected to a skirt of said closure cap by a plurality of depending ruptureable bridges, said lock ring being radially outwardly expansible and of an external diameter to sit on a corresponding tamper-evident band, said lock ring being of a flat construction and being radially split, said lock ring having a plurality of bridges receiving notches in the outer periphery thereof.
A lock ring for use with a closure cap having a tamper-evident band connected to a skirt of said closure cap by a plurality of depending ruptureable bridges, said lock ring being radially outwardly expansible and of an external diameter to sit on a corresponding tamper-evident band, said lock ring being of a flat construction and being radially split, said lock ring having a set of depending fins for engaging an interior surface of an associated tamper-evident band to limit radial expansion of said lock ring.
Dependencies are inferred from the claim text.