Patent ID: 7430769

Claim:
A multi-piece bathtub for children comprising: at least two bathtub segments adapted to be assembled to provide at least two different predetermined fluid retaining areas having different volumes, wherein said bathtub segments are operative to cooperate to at least partially define a first one of the plurality of predetermined fluid retaining areas and to at least partially define a second one of the predetermined fluid retaining areas, the predetermined fluid retaining areas operative to resist fluid leakage by providing a sealed fluidic interface between the first and second bathtub segments and a coupler operative to connect said first and second bathtub segments in a sealed fluidic interface; wherein one of said bathtub segments includes an interior surface including a floor and side walls, the interior surface having at least one groove, and another of the bathtub segments includes an exterior surface, the exterior surface having at least two parallel raised ribs to be engaged with the at least one groove.