Abstract: Tamper-evident closures for application to containers are disclosed. The closures include a cylindrical side wall, a series of frangible bridges, and an annular skirt, and the skirt includes on its inner wall an upper raised portion, a lower raised portion, and an indented central portion therebetween. In this manner, an annular collar on the container can be locked between these upper and lower raised portions on the annular skirt portion of the closure, and this can result in improved consistent fracture of the frangible bridges upon removal of the closure from the container.

Abstract: Tamper-evident plastic closures are disclosed for use in connection with containers in which the closures include an internally threaded upper portion and a depending lower skirt portion with a number of frangible bridges connecting same. The depending lower skirt includes an inwardly projecting stop bead which can project upwardly from the inner surface of the skirt towards the lower surface of an annular collar on the container when the closure is completely threaded onto the container and to engage that lower surface when the closure is unscrewed from the container.

Abstract: Tamper-evident containers are disclosed, including a container body with a neck portion and an annular collar portion below the neck portion, and a closure for application to that container body. The closure includes a one-piece closure body including a horizontal end wall and a cylindrical side wall having a depending lower skirt portion with an inwardly projecting bead having a predetermined length.

Abstract: Tamper-evident containers are disclosed, including a container having a neck portion and an annular collar portion located below the neck portion, and a closure for application to the container including a one-piece closure body having a horizontal end wall and a cylindrical side wall including an upper portion, a depending lower skirt portion, and an intermediate side wall portion therebetween. The depending lower skirt portion includes an inwardly projecting bead having an internal diameter which is no greater than the outer diameter of the container at a predetermined location directly below the annular collar portion, so as to provide an interference fit therebetween at that predetermined location when the closure is completely applied to the container.