Abstract: A tamper evident closure member having tamper-evident breakaway strips and correctly spaced reinforced pull-tabs allowing a user to remove the closure member and separate the breakaway strips from a container by lifting the closure member at one of the pull-tabs. The closure member is configured such that the removal and separation happen in a single motion. Moreover, the tamper evident closure member includes engaging walls having a different angle than that of a rim of a container, thereby assisting in complete removal of the breakaway strips during the single motion separation. The closure member also includes vertical indicators providing enhanced tamper resistance.

Abstract: A plastic container lid which has a small ridge protruding from the outer periphery of the lid, at the top corner of the lid. The ridge provides a uniform taper in the outside diameter of the lid, enabling containers to be capped at high speeds by a method that utilizes a spinning rod feed mechanism. The ridged lid is formed by a novel method, utilizing a one-piece mold cavity, fitted with a one piece mold insert. Also, disclosed is a method of fabricating the one-piece mold cavity.

Abstract: A plastic container lid which has a small ridge protruding from the outer periphery of the lid, at the top corner of the lid. The ridge provides a uniform taper in the outside diameter of the lid, enabling containers to be capped at high speeds by a method that utilizes a spinning rod feed mechanism. The ridged lid is formed by a novel method, utilizing a one-piece mold cavity, fitted with a one piece mold insert. Also disclosed is a method of fabricating the one-piece mold cavity.