Patent ID: 6321683
Filing Date: 2001-11-27
Classification: A01K

Abstract:
A device for making waves of water in an aquarium tank, comprising:an inlet to receive water;an outlet to discharge said water into said aquarium tank, said outlet is rotatable with respect to said inlet around an axis concentric with said inlet;a fluid connection between said inlet and outlet, said connection including two pipes concentrically and rotatably fitted together one inside an other, said one pipe is connected with one end of said inlet at one end of said one pipe, while said other pipe is connected with one end of said outlet at one end of said other pipe, said one pipe supporting said other pipe and said outlet for rotation on said one pipe, andan actuator coupled to at least one of said other pipe and said outlet so as to rotate said outlet around said axis so as to make waves of said water in said aquarium tank.