(19)

(11)

EP 0 487 527 A1

(12)

(43) Date of publication: 03.06.1992 Bulletin 1992/23 (21) Application number: 90906812.0 (22) Date of filing: 11.05.1990

(51) International Patent Classification (IPC):  B63B 43/ 14( . ) (86) International application number: PCT/CA1990/000155 (87) International publication number: WO 1990/013473 (15.11.1990 Gazette 1990/26)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB IT LI LU NL SE (30) Priority: 11.05.1989 US 19890350287 29.09.1989 CA 19890615193 (71) Applicant: 824328 ONTARIO LIMITED Willowdale, Ontario M2J 2G4 (CA)	(72) Inventor: BRUNDRITT, Larry, W. Willowdale, Ontario M2J 2G4 (CA) (74) Representative: LOUIS, PÖHLAU, LOHRENTZ & SEGETH  Postfach 3055 D-90014 Nürnberg D-90014 Nürnberg (DE)