(19)

(11)

EP 0 446 200 A1

(12)

(43) Date of publication: 18.09.1991 Bulletin 1991/38 (21) Application number: 89904054.0 (22) Date of filing: 03.04.1989

(51) International Patent Classification (IPC):  E03F 5/ 10( . ) (86) International application number: PCT/EP1989/000359 (87) International publication number: WO 1989/009857 (19.10.1989 Gazette 1989/25)

(84) Designated Contracting States: GB SE (30) Priority: 05.04.1988 SE 19880001251 13.06.1988 SE 19880002202 (71) Applicant: WAVIN B.V. NL-7700 AC Dedemsvaart (NL)	(72) Inventor: SKOTTE, Klaus DK-8600 Silkeborg (DK) (74) Representative: Delhage, Einar, et al  Bergenstrahle & Lindvall AB Sankt Paulsgatan 1 S-116 47 Stockholm S-116 47 Stockholm (SE)