(19)
(11) EP 1 624 113 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
20.09.2006 Bulletin 2006/38

(43) Date of publication A2:
08.02.2006 Bulletin 2006/06

(21) Application number: 05076812.6

(22) Date of filing: 04.08.2005
(51) International Patent Classification (IPC): 
E01H 1/10(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK YU

(30) Priority: 05.08.2004 NL 1026793

(71) Applicant: L.J. Bekker Holding B.V.
3130 AC Vlaardingen (NL)

(72) Inventor:
  • Langbein, Nicolaas Ernst Johan
    4836 BB Breda (NL)

(74) Representative: Blokland, Russell 
Octrooibureau LIOC B.V. Postbus 13363
NL-3507 LJ Utrecht
NL-3507 LJ Utrecht (NL)

   


(54) Mobile device for the treatment of a surface


(57) A mobile device for treating a surface makes use of a liquid which is sprayed on the surface under high pressure using one or more spray heads (5). The device comprises an optionally self-propelling chassis (2) with a first reservoir (401) for the liquid and first pumping means (504) for guiding the liquid under increased pressure to the spray head. Recovery means (7) are herein provided for taking up contaminated liquid from the surface and storing it in a second reservoir (402). A purifying installation is able to make recovered liquid suitable for re-use. The purifying installation comprises first filter means (700,701) for filtering particles having at least a first size and second filter means (702) for filtering particles having at least a second, smaller size. A buffer reservoir (403) is arranged between a filtrate outlet (713) of the first filter means and an inlet (721) of the second filter means.







Search report