Bottles and jars – Closures – Frangible member or portion
Patent
1996-05-15
1997-10-14
Cronin, Stephen
Bottles and jars
Closures
Frangible member or portion
B65D 4134
Patent
active
056762690
ABSTRACT:
A container closure 10 for screw top containers such as beverage container, the closure 10 having a generally cylindrical tamper-evident band 11 joined by a plurality of frangible bridges 13b, 13c and at least one extended non-frangible bridge 13a to the free edge of a skirt 16 of the closure 10. The band 11 has a segmented internal rib 18 which engages an external retaining flange 30 of the container 29 when the closure is applied to the container. An L-shaped slot 17 extends through the side wall of the tamper-evident band 11, the horizontal leg 61 of which terminates directly adjacent to or under the extended non-frangible bridge 13a. A weakened frangible region 63 of the band extends from the terminating end 62 of the horizontal leg 61 axially downward to the bottom of the band 11. On removal of the closure 10 from the container 29, the frangible bridges 13b, 13cand frangible region 63 rupture and the band 11 remains captive at the extended bridge 13a to the skirt. Longitudinal internal projections 25 and 28 circle the band 11, except in the region of the L-shaped slot 17 to allow stretching of the band adjacent the slot. Thickenings 26 circle the band except in the region of the slot 17 and except at approximate quarter-turns 71, 72 around the band from the slot, allowing stretching of the band where absent for application to the container.
REFERENCES:
patent: 3904062 (1975-09-01), Grussen
patent: 4206851 (1980-06-01), Ostrowsky
patent: 4530436 (1985-07-01), Wiedmer
patent: 4557393 (1985-12-01), Boik
patent: 4805792 (1989-02-01), Lecinski
patent: 5080246 (1992-01-01), Hayes
patent: 5215204 (1993-06-01), Beck et al.
patent: 5246125 (1993-09-01), Julian
patent: 5248050 (1993-09-01), Janousch et al.
Blake Robert R.
Tansey Charles M.
Closures and Packaging Services Limited
Cronin Stephen
LandOfFree
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