Patent ID: 6090221
Filing Date: 2000-07-18
Classification: A47L,Y10S

Abstract:
A system for treating an external surface of a building, the system comprising:(a) a device housing:(i) at least one treatment unit, said treatment unit being configured to treat the external surface of the building with a pressurized fluid;(ii) at least one suction unit associated with said treatment unit, said suction unit being activated by said pressurized fluid to generate suction at a suction port;(iii) at least one suction head in fluid connection with said suction port and deployed to clamp against the external surface; and(iv) a drive mechanism mechanically linked to said at least one suction head and configured to move said at least one suction head relative to said device in a manner such as to generate motion of said device substantially parallel to the external surface; and(b) at least one suspension system configured for suspending said device adjacent to the external surface.