(19)
(11) EP 1 520 943 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
18.01.2006 Bulletin 2006/03

(43) Date of publication A2:
06.04.2005 Bulletin 2005/14

(21) Application number: 04255633.2

(22) Date of filing: 16.09.2004
(51) International Patent Classification (IPC): 
E03F 5/04(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL HR LT LV MK

(30) Priority: 03.10.2003 GB 0323197

(71) Applicant: ACO Technologies plc
Shefford, Beds SG17 5TE (GB)

(72) Inventor:
  • King, Robert James
    Hitchin, Hertfordshire SG4 0LD (GB)

(74) Representative: Williamson, Brian 
OLSWANG 90 High Holborn
London WC1V 6XX
London WC1V 6XX (GB)

   


(54) Surface drainage system


(57) An apparatus for a surface drainage system comprises a longitudinal restrictor member 9 and at least one mounting means 10 adapted to locate the restrictor member 9 adjacent a longitudinal drainage slot 5 of a drainage channel section. The mounting means 10 are adapted to enable movement of the restrictor member 9 relative to the slot 5 in order to vary the effective area of the slot opening.







Search report