Patent ID: 7168120
Filing Date: 2007-01-30
Classification: E04H

Abstract:
1. An automatic swimming pool cleaning robot, comprising a body terminated by a suction head; an astable valve housed in the body; a suction pipe having a lengthwise section and including a first lower end and a second upper end, the first lower end being attached to the body and connected to the suction head via the astable valve, the astable valve being put in motion by vacuum generated by a vacuum source and discontinuously putting the suction head in communication with the second upper end of the suction pipe; a recuperation filter that, during operation, is selectively connected to the second upper end of the suction pipe; and a venturi injector installed on the lengthwise section of the suction pipe on the second upper end of the suction pipe, the venturi injector including an inlet orifice and an outlet nozzle, the venturi injector presenting the inlet orifice exterior to the suction pipe, and including the outlet nozzle interior to the suction pipe and pointing approximately in the direction of suction, the inlet orifice, during operation, being selectively connected to a pressurized water source, wherein the venturi injector forms the vacuum source during operation; and a plug selectively sealing the inlet orifice, wherein the recuperating filter is removably connected to the second upper end of the suction pipe and when the filter is removed and the plug seals the inlet orifice of the injector, the robot can also be operated by connecting the second upper end of the suction pipe to an external vacuum source.