The closure cap for a container comprises an internal skirt (16) comprising a bore (16b) provided with at least one helical screw thread (19) for screwing said cap onto the container, an external skirt (18) radially surrounding said internal skirt at least partially, and a front wall (14) from which said internal and external skirts extend. The cap is produced by moulding at least one synthetic material. At least one recess (30) is formed on an outer surface (16a) of the internal skirt, remaining axially away from a front end face (16c) of said skirt.

A closure is provided and comprises a top plate and a sidewall depending therefrom. The interior of the sidewall has a screw thread formation comprising a plurality of thread segments. The thread segments collectively define an engagement surface for engagement with an external thread formation on an associated container. A notional helical top surface with a constant pitch extends along the formation, and at least some, but not all, of the segments include material offset from the notional helical top surface towards the top plate.

There are described bottle cap assemblies. In some embodiments, a bottle cap assembly includes a cap which is snappingly engeable to a bottle and disengageable by rotating the cap and the bottle relative to one another, squeezing the cap suitably and pulling the cap away from the bottle.

A container body has a neck defining an opening with an axis. The neck includes a projection that projects radially away from the axis. A cap includes a wall that defines at least part of an exterior of the cap. The wall includes an aperture extending therethrough. The cap is removably attached to the neck and supported for movement on the neck between a first position and a second position. The wall is resiliently flexible for radial movement between a retained position and an unretained position with respect to the neck. In the retained position the projection retains the cap in the first position. The wall, in the unretained position, allows movement of the cap from the first position toward the second position.

A threaded closure system includes a threaded opening and a threaded closure, where at least one thread of the threaded opening or the threaded closure has a leading portion with a steeper angle than the rest of the thread.

A valve assembly including a fastener-less subcomponent. Installation of the subcomponent is simplified as compared to cover plates utilizing fasteners, while still providing suitable performance. In addition, the fastener-less subcomponent is not readily disassembled with common tools thereby discouraging tampering. The subcomponent includes bayonet style features for interlocking with structure of a valve housing to lock the subcomponent in position.

A container assembly comprising a container and a closure. The container includes a body defining a storage chamber and a neck. The neck extends away from the body and defines an open mouth providing access to the storage chamber. The neck further defines an exterior surface and at least two latching protrusions extending radially outwardly from the exterior surface. The closure includes a top wall, a cylindrical wall extending downwardly from the top wall, a first lug extending radially inwardly from the cylindrical wall, and a second lug extending radially inwardly from the cylindrical wall. A top surface of the first lug and a top surface of the second lug are each positioned a substantially identical distance away from the top wall and the first lug and the second lug are each configured to selectively lock with a common one of the at least two latching protrusions.

A package includes a container and closure. The container has a neck portion defining an opening. The container has an external thread formation and catch lugs. The closure fits to the neck portion for closing the opening. The closure includes first and second closure portions. The first closure portion includes a top wall portion and a skirt portion. The skirt portion depends from the top wall portion. The skirt portion includes an internal thread formation for mating engagement with the external thread formation. The second closure portion includes a tamper-evident band depending from and being partially detachably connected to the skirt portion by a frangible connection. An interior surface of the second closure portion includes catch teeth. The catch lugs mechanically catch and lock with a respective one of the catch teeth to prevent or inhibit the second closure portion from being removed during the opening of the container.

An improved threaded coupling arrangement for non-removably securing an outer collar member onto an inner tubular member against removal.