Band with lock ring for tamper-evident cap

Details Band with lock ring for tamper-evident cap Band with lock ring for tamper-evident cap

1988-05-04

1989-02-21

Norton, Donald F.

Bottles and jars

Closures

Frangible member or portion

220319, 2922566, 292299, B65D 4134

Patent

active

048057916

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.

REFERENCES:
patent: 1062532 (1913-05-01), Blair
patent: 1969524 (1934-08-01), Rollason
patent: 1982806 (1934-12-01), Hayes
patent: 2162711 (1939-06-01), Hamberger
patent: 2162752 (1939-06-01), Schauer
patent: 2172159 (1939-09-01), Conner et al.
patent: 2491139 (1949-12-01), Simonsen
patent: 3310191 (1967-03-01), Kern et al.
patent: 3493140 (1968-11-01), MacNeill
patent: 4344383 (1982-08-01), Salt
patent: 4493427 (1985-01-01), Wolkonsky
patent: 4503986 (1985-03-01), Nixdorff et al.
patent: 4562931 (1986-01-01), Brach et al.
patent: 4572389 (1986-02-01), Gach
patent: 4610367 (1986-09-01), Massott et al.
patent: 4756438 (1988-07-01), Ryder

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