Abstract: A tamper-evident closure construction for a container with a neck having a discharge opening therein includes a base cap having a base wall and a nozzle portion projecting from the base wall and an annular flange projecting radially outwardly from the nozzle portion adjacent to the base wall and having a frustoconical first cam surface thereon and a flat planar first stop surface thereon. The construction also includes an overcap with a cylindrical, flexible and resilient skirt connected to the base wall by a circular array of frangible webs, and having a flat planar second stop surface at the distal end thereof and an annular groove mateably receiving the annular flange and defining a frustoconical second cam surface engaging the first cam surface.

Abstract: A tamper evident closure construction is provided for use with a container of the type having a neck with a discharge orifice therein. The tamper evident closure construction includes a dispenser cap for controlling the dispensing of materials through the discharge orifice. The dispenser cap includes a base connected to the neck and a dispensing portion connected to the base. The tamper evident container closure construction also includes a container cap having a mounting portion adapted to be fastened directly to the neck of the container and a second dispensing portion connected by at least one tamper evident connection to the mounting portion. The at least one tamper evident connection is severable from the mounting portion to provide a visual indication of tampering. The second dispensing portion, when severed, is disposed for sliding movement with respect to the first dispensing portion to facilitate the dispensing of materials from the container.

Abstract: A tamper evident closure construction is provided for use with a container of the type having a neck with a discharge orifice therein. The tamper evident closure construction includes a dispenser cap and a unitary, one-piece, tamper evident closure cover. The dispenser cap includes a base connected to the neck and a dispensing portion connected to the base. The tamper evident closure cover consists of an overcap and a container closure cap separated by frangible webs which, when permanently disengaged, allow access to the dispensing portion and provide a visual indication of tampering. The container closure cap is fastened directly to the neck of the container and includes a breakaway tamperband, or alternatively, a snap-fit abutment arrangement, which provides an indication of attempts to remove the container closure cap from the neck.