CONTAINER HAVING A TAMPER EVIDENCY SYSTEM

A tamper evidency system for a container having a closed body, an open ended finish portion, and a closure to close the open end of the finish portion. The closure has a top and a depending wall portion which has cam teeth extending inward toward the finish portion. A lug extends from the outer surface of the finish portion, located between the finish portion and the cam teeth when the closure installed. The lug is integrally molded to the finish portion by a shearable web. The shearable web has an orientation, which enables the lug to be rotated about the shearable web by the cam teeth without interfering with installation when the closure is installed onto the finish portion. The lug also engages one of the cam teeth when the closure is removed from the finish portion. The lug prevents the closure from being removed without first shearing the lug from the finish portion at the shearable web. The lug is unreachable for manipulation without the use of tools. In addition, the lug has a corner which contacts the outer surface of the finish portion when one of the cam teeth rotates the lug in a closure removal direction. The lug pivots about the corner upon contact with the finish portion to create a mechanical advantage for shearing the lug from the finish portion at the shearable web. The tamper evidency system may further comprise a flag extending from the lug outside the open end of the closure in order to be visible to a consumer before the lug has been sheared off. Alternatively a lug and shearable web are integrally molded with a closure, and engaging cam teeth are formed on a container finish.