Patent ID: 7665635

Claim:
An assembly for packaging and dispensing liquid, the assembly comprising: a receptacle for containing a supply of a liquid; and a refillable unit arranged to be placed in a separable manner on the receptacle, the refillable unit comprising: a body and a piston that is movable relative to the body and that co-operates therewith to define a storage chamber of variable volume for containing the liquid, the storage chamber being put into fluid communication with the receptacle to be filled therefrom when the refillable unit is placed on the receptacle; and a pump arranged to take the liquid from the receptacle without taking the liquid from the storage chamber when the refillable unit is placed thereon, and to take the liquid from the storage chamber when the refillable unit is separate from the receptacle, the pump including a pump chamber that is distinct from the storage chamber, wherein the storage chamber is formed above the piston when the refillable unit is observed in a head-up position and the pump chamber is isolated from the storage chamber, at least while the pump is dispensing the liquid.