Patent ID: 8297483

Claim:
Liquid dispenser for dispensing a carbonated liquid from a container by tilting the container to a pouring position, the liquid dispenser comprising: a compartment extending upwardly from a neck portion of said container, defining an opening to the atmosphere between said compartment and said neck portion; a container sealing region located between said neck portion and said opening; a compartment sealing region located between said compartment and said opening; and a valve, movable within said compartment, from a closed position pressed toward said neck portion, and to an open position, away from said neck portion, said valve comprising: a first surface facing said compartment; a second surface facing said opening; a first valve sealing region to match said container sealing region, for preventing passage of fluids between said neck portion and said opening, when said valve is in said closed position; a second valve sealing region to match said compartment sealing region, for preventing passage of fluids between said compartment and said opening, when said valve is in said closed position; and a channel extending from said neck portion to said compartment, said channel enabling passage of fluid from said neck portion to said compartment at the closed position of said valve; wherein pressure within said container and pressure within said compartment are substantially similar.