(19)
(11) EP 1 250 494 A1

(12)

(43) Date of publication:
23.10.2002 Bulletin 2002/43

(21) Application number: 01906414.6

(22) Date of filing: 25.01.2001
(51) International Patent Classification (IPC)7E02D 19/18, E02D 19/16
(86) International application number:
PCT/NL0100/049
(87) International publication number:
WO 0105/5514 (02.08.2001 Gazette 2001/31)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 26.01.2000 NL 1014185

(71) Applicant: TRISOPLAST INTERNATIONAL B.V.
5334 LK Velddriel (NL)

(72) Inventor:
  • WAMMES, Jacobus, Cornelis
    NL-5334 JR Velddriel (NL)

(74) Representative: Van kan, Johan Joseph Hubert, Ir. et al
Algemeen OctrooibureauP.O. Box 645
5600 AP Eindhoven
5600 AP Eindhoven (NL)

   


(54) METHOD FOR INTRODUCING A MOISTURE-IMPERMEABLE LAYER INTO THE GROUND, AS WELL AS A TRENCH OBTAINED BY SUCH A METHOD