Patent ID: 6090219
Filing Date: 2000-07-18
Classification: E04H

Abstract:
Apparatus configured to be driven by a positive pressure water source for cleaning the interior surface of a containment wall and the upper surface of a water pool contained therein, said apparatus comprising:a unitary body configured for immersion in said water pool;means for supplying a positive pressure water flow to said body from said source;a level control subsystem responsive to water flow for producing a vertical force to selectively place said body either (1) in a first mode proximate to said water surface or (2) in a second mode proximate to said wall surface below said water surface;at least one pool water inlet in said body; anda propulsion control subsystem responsive to said water flow 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.