(19)

(11)

EP 0 068 022 A1

(12)

(43) Date of publication: 05.01.1983 Bulletin 1983/01 (21) Application number: 82900599.0 (22) Date of filing: 31.12.1981

(51) International Patent Classification (IPC):  B63B 59/ 10( . ) (86) International application number: PCT/US1981/001781 (87) International publication number: WO 1982/002368 (22.07.1982 Gazette 1982/18)

(84) Designated Contracting States: AT BE CH FR GB LI LU NL SE (30) Priority: 02.01.1981 US 19810222250 (71) Applicant: ORAM, Stephen W. Adrian, MI 49221 (US)	(72) Inventor: ORAM, Stephen W. Adrian, MI 49221 (US) (74) Representative: Anderson, John Robert Browning, et al  WALFORD & HARDMAN BROWN 5 The Quadrant Coventry, CV1 2EL Coventry, CV1 2EL (GB)