(19)

(11)

EP 0 079 949 A1

(12)

(43) Date of publication: 01.06.1983 Bulletin 1983/22 (21) Application number: 82902129.0 (22) Date of filing: 25.05.1982

(51) International Patent Classification (IPC):  B63B 35/ 79( . ) B63H 9/ 06( . ) (86) International application number: PCT/US1982/000714 (87) International publication number: WO 1982/004236 (09.12.1982 Gazette 1982/29)

(84) Designated Contracting States: AT BE DE FR GB NL (30) Priority: 26.05.1981 US 19810266884 (71) Applicant: OLSEN, Eric Marion, MA 02378 (US)	(72) Inventor: OLSEN, Eric Marion, MA 02378 (US) (74) Representative: Garratt, Peter Douglas, et al  Mathys & Squire 100 Grays Inn Road London WC1X 8AL London WC1X 8AL (GB)