The invention provides a container closure with a top, a skirt depending from the top, a tear-away tamper resistant band connected to the skirt by frangible means and a tear tab on the band arranged so that it is inclined upwardly and outwardly in order to ensure that when a container with a closure in position is being packed into a carbon bottom end first the tear tab on the closures does not catch on the rim of the carton. Preferably the tear tab is connected by a frangible tongue to a thumb push on the skirt and disposed immediately above the tear tab.

A novel container cap and containment system is disclosed which includes a cap with an upper and a lower portion, being removable one from the other. The upper portion has an upper wall that is continuous with an outer rim. The outer rim is constructed such that it fits over the orifice of a container. A blade is included inside of the peripheral edge of the outer rim and preferably extends from the upper wall. The lower portion of the cap has one end that is capable of receiving the end of the upper portion opposite to the upper wall and a second end that is adapted to be able to be releasably secured about the orifice of the container, the orifice also including a safety seal. The blade, in one embodiment, is preferably oriented in a "C" shape, whereby the cap can be removed from the container and the upper portion oriented over the orifice and depressed therein, thus cutting the safety seal while allowing a small portion to remain, thereby preventing the cut seal from falling into the container. Another embodiment includes a puncture device, also in the upper portion of the cap, the puncture device being capable of penetrating and securing the safety seal so that the seal can be completely cut and not fall into the container. The cap can be replaced on the container, thereafter functioning as a traditional container cap.

There is disclosed a snap-on closure which has upper and lower annular beads on the inside wall of a peripheral skirt with a tear band defined by at least one score line in the skirt, located between the annular beads. The closure has a center corking skirt that is downwardly dependent from its undersurface and this corking skirt has sufficiently thin side walls to flex. The corking skirt is spaced concentrically within the outer peripheral skirt of the closure and is spaced apart from the peripheral skirt by an annulus having a width which is slightly less than the width of the inner lip found on the neck finish of conventional bottles. This ensures that the corking skirt will resiliently engage the inside mouth of the bottle and be deflected thereby, thus forming a seal in the mouth of the bottle. The corking skirt can have reinforcement gussets that project radially inwardly from its side wall and depend from the undersurface of the top disk of the closure. These gussets are also of a thickness sufficiently thin to permit flexing when elastic deformation of the corking skirt is required for fitting of the closure.

A snap-on plastic closure for a container includes a top wall portion, an annular skirt portion depending from the top wall portion, and a removal tab projecting forwardly from the skirt portion for manipulation of the closure during removal. A sealing plug depends from the inside surface of the top wall portion for disposition generally within the mouth of an associated container. The skirt portion of the closure includes a deformable region positioned beneath the removal tab so that during closure removal, the deformable region is permanently stretched and deformed for tamper-indication.