Abstract: A cap to close off an externally threaded aperture of a container is provided. The cap includes a base wall and a peripheral skirt carrying an internal thread for mating with the aperture's external thread. A hollow spigot portion extends from the base wall within the cap, and is co-axial with the skirt and attached to the base wall by a frangible connection. Grooves or thread are formed on the outside wall of the spigot portion to engage the wall of the bore in the aperture. A method of sealing a container including engaging a cap is also provided.

Abstract: A cap to close off an externally threaded aperture of a container is provided. The cap includes a base wall and a peripheral skirt carrying an internal thread for mating with the aperture's external thread. A hollow spigot portion extends from the base wall within the cap, and is co-axial with the skirt and attached to the base wall by a frangible connection. Grooves or thread are formed on the outside wall of the spigot portion to engage the wall of the bore in the aperture. A method of sealing a container including engaging a cap is also provided.

Abstract: A container for storing and dispensing carbonated beverages, including a housing having a sculpted base surface, a storage bladder, a dispensing valve, compression means within the housing to apply a continuous force to a piston between the compression means and the bladder, the piston having a shape complementary to the sculpted surface, guide means biasing the piston when pushed by the compression means against the bladder, whereby, as liquid is drawn from the bladder via the valve the liquid is exhausted by the piston mating with the first sculpted surface.