Tamper-resistant container closure having auxiliary removal feat

Details Tamper-resistant container closure having auxiliary removal feat Tamper-resistant container closure having auxiliary removal feat

1985-01-31

1986-06-10

Norton, Donald F.

Bottles and jars

Closures

Frangible member or portion

B65D 4148

Patent

active

045938300

ABSTRACT:
To prevent tampering with the contents of containers, the neck of the container is formed with external beads with grooves under the lower surfaces of the beads. The cap has an outer skirt formed with internal beads which lock under the shoulders of the neck beads. Preferably, the cap has an inner skirt which seals against the inside of the container neck. To remove the cap, a score-line is formed extending upward from the bottom edge of the skirt and merging with a horizontal scoreline located between the two internal beads, so that one may grip a tab on the lower edge of the skirt, pull upward on the substantially vertically section and thence horizontally around the horizontal scoreline. Unless the skirt is thus torn, it cannot be removed from the neck and tearing of the skirt indicates tampering with the contents of the container. In the present invention, instead of the horizontal scoreline continuing around the periphery of the cap, it terminates at an unscored area which connects the upper and lower portions of the skirt. The lower portion of the skirt may be gripped by the user as an auxiliary means of removing the cap. The primary means of removing the cap is a flange which extends outward from the top of the cap skirt and may be gripped by the finger and/or thumb to pull the cap off the neck.

REFERENCES:
patent: 4166552 (1979-09-01), Faulstich
patent: 4303167 (1981-12-01), Martinez
patent: 4385708 (1983-05-01), Curry
patent: 4484687 (1984-11-01), Bullock

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