Tamper evident plastic caps with lower separable or breakaway po

Details Tamper evident plastic caps with lower separable or breakaway po Tamper evident plastic caps with lower separable or breakaway po

1985-12-12

1987-12-01

Norton, Donald F.

Bottles and jars

Closures

Frangible member or portion

215DIG1, 264295, 264296, 264322, B65D 4134

Patent

active

047098244

ABSTRACT:
A cap for a container and a method of forming the cap. In the method the cap is molded and includes a plastic skirt provided with a line of weakness. An essentially concave surface of a curling tool engages the lower free end of the skirt and curves it into a curled resilient interfering free end which reduces the internal breath of the plastic skirt prior to capping. Upon capping the curled free end is adapted to provide an interference with the container so that upon initial removal of the cap the line of weakness separates to indicate the condition of the container. The interfering curled free end of the plastic skirt can have a coil, O, U or J cross sectional shape.

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