Patent ID: 7743734

Claim:
A device for generating waves in the form of volumes of water moving to and fro periodically in a volume of water which is held in an aquarium, the device comprising: a wave generator for delivering of at least one of kinetic and potential energy to a subvolume of an aquarium volume of water, the wave generator further comprising a storage container for the subvolume of water separated from the aquarium at least in one dimension and a delivery instrument having a pump for at least one of intermittently delivering water from the aquarium volume into the storage container and intermittently discharging water from the storage container subvolume into the aquarium volume of water; wherein the pump is submersed in the subvolume in the storage container, the pump includes a delivery piece in fluid communication with the aquarium volume, the delivery piece is positioned below a free surface of the aquarium volume and having an axial alignment substantially parallel to the free surface for discharge of a bulk volume of water fluid in a direction substantially parallel to the free surface.