Bottles and jars – Closures – Retained by bonding or adhesive means
Patent
1982-06-01
1984-03-06
Norton, Donald F.
Bottles and jars
Closures
Retained by bonding or adhesive means
215253, B65D 4132
Patent
active
044349041
ABSTRACT:
A plastic container and a three-piece closure system therefor are disclosed. The container has a threaded neck defining a dispensing outlet. A separate closure covers the dispensing outlet and is heat-sealed to the threaded neck, forming a frangible section which may be broken to remove the closure. An internally threaded jacking ring is threadedly received on the neck, and includes a plurality of inwardly directed flexible fingers, which snap into an annular groove in the closure when the jacking ring is threaded onto the neck. To break the frangible portion and open the container, the jacking ring is rotated in the direction to remove it, so that the jacking ring fingers press against the top edge of the recess in the closure and actually pry the closure away from the container neck.
REFERENCES:
patent: 2375388 (1945-05-01), Ryan
patent: 3804282 (1974-04-01), Komendowski
patent: 3974008 (1976-08-01), Choksi
patent: 4093093 (1978-06-01), Fowles et al.
patent: 4096962 (1978-06-01), Riuli et al.
patent: 4111325 (1978-09-01), Bellamy et al.
patent: 4207990 (1980-06-01), Weiler
D'Amico Richard
Fowles Thomas A.
Winchell David A.
Baxter Travenol Laboratories Inc.
Flattery Paul C.
Kirby, Jr. John P.
McFarron Gary W.
Norton Donald F.
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