A pop top lid for cylindrical fluid containers is disclosed. The lid includes an end shell with a scored line defining a tear panel, a stay-on tab assembly, and a rivet for attaching the assembly to the shell. The stay-on tab assembly features a pocketed tang with a central portion containing a pivot hole for the rivet. The assembly includes a top cover and bottom plate, spaced apart by a gap on the leading edge. An aperture point is connected to the pocketed tang and can be rotated. A shearing edge is attached to the central portion and extends radially behind the aperture point. In an embodiment, the bottom plate is embossed to facilitate sliding of the shearing edge under the end shell wall when the pocketed tang is rotated, achieving a resealing clamp action by securely placing the embossed shape into the tear panel opening.

A resealable container lid assembly including a cap rotationally assembled to a lid. The cap rotates between storage, opening, removal and resealing positions. Operation between the cap and the lid employs any suitable mechanical interface, such as cam tracks and cam followers. The lid includes a tear panel defined by a score line. Features of the cap are used to impinge upon the lid to fracture the score line and open the tear panel. Once opened, the cap can reseal the container. The seal can be provided between a bottom surface of the cap and the top surface of the lid, a feature of the sidewalls of the cap and the lid, or any other sealing interface. The cap can include a tamper indicator. The cap can be replaced with any of a variety of specialized caps and/or accessories designed for different functions.

A plug styled closure cap for resealing a resealable container. The cap includes a body comprising a sidewall, a motion translating feature formed on an exterior surface of the sidewall of the plug style closure cap body that translates a rotational motion to an axial motion when engaged with a mating translating feature formed on an interior surface of a container opening, a sealing surface that engages with a mating sealing surface of the container opening, and a tamper evidence feature integral with the cap body. The sealing surface can include an elastomeric element. The tamper evidence feature can include at least one segment defined by frangible elements. A method of use enables resealing of the container and indication when the container is no longer factory sealed.

The embodiments of the present disclosure provide a stopper comprising a plug and a pierceable membrane, the plug including a cavity between a pierceable membrane and a lower opening. The pierceable membrane and the cavity can form a tortuous path that reduces interactions between the contents of the container and the ambient environment. The cavity can be bounded by a plastic insert disposed within the plug. The plastic insert can include insert walls, the lower opening, and an insert flange. The pierceable membrane can be bonded to an upper surface of the insert flange.