(19)

(11)

EP 0 477 216 A1

(12)

(43) Date of publication: 01.04.1992 Bulletin 1992/14 (21) Application number: 90908695.0 (22) Date of filing: 23.05.1990

(51) International Patent Classification (IPC):  F16L 9/ 12( . ) F16L 25/ 01( . ) (86) International application number: PCT/NO1990/000090 (87) International publication number: WO 1990/015950 (27.12.1990 Gazette 1990/29)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB IT LI LU NL SE (30) Priority: 15.06.1989 NO 19890002491 (71) Applicant: LARSEN, Sverre N-3145 Tjome (NO)	(72) Inventor: LARSEN, Sverre N-3145 Tjome (NO) (74) Representative: Barlow, Roy James, et al  J.A. KEMP & CO. 14, South Square Gray's Inn London WC1R 5LX London WC1R 5LX (GB)