Patent ID: 6485638
Filing Date: 2002-11-26
Classification: E04H

Abstract:
Apparatus for use with a containment wall having bottom and side portions containing a pool of water having a surface for cleaning the surface of said water and the surface of said wall, said apparatus comprising:a unitary body capable of being immersed in said pool water; an electric power source including a battery; a level control subsystem responsive to said power source for producing a vertical force to selectively place said body either (1) proximate to said water surface or (2) proximate to said wall surface below said water surface; at least one pool water inlet in said body; and a propulsion control subsystem responsive to said power source for selectively moving said body either (1) along a path adjacent to said water surface for collecting pool water through said inlet from adjacent to said water surface or (2) along a path adjacent to said wall surface for collecting pool water through said inlet from adjacent to said wall surface.