WINDOW CLEANING APPARATUS.

摘要

PCT No. PCT/GB93/01084 Sec. 371 Date Mar. 16, 1995 Sec. 102(e) Date Mar. 16, 1995 PCT Filed May 26, 1993 PCT Pub. No. WO93/24044 PCT Pub. Date Dec. 9, 1993A cleaning device for cleaning windows comprises an elongate wiper element (C) which is robotically controlled to move across the surface of the window to apply and remove cleaning fluid therefrom. The robotic control can be arranged so that the movement of the wiper element corresponds to that which it would follow if used manually by a skilled window cleaner. The wiper element maintains continuous contact with the entire surface of the window without displacement of the wiper from the surface of the window during cleaning.