Patents Assigned to O.C.S. Group Limited
  • Window cleaning apparatus
    Patent number: 5655247
    Abstract: A 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.
    Type: Grant
    Filed: November 21, 1994
    Date of Patent: August 12, 1997
    Assignee: O.C.S. Group Limited
    Inventors: Charles Allen, Richard Pawson, Mohammed Farsi, Peter Johnson