(19)

(11)

EP 0 417 123 A1

(12)

(43) Date of publication: 20.03.1991 Bulletin 1991/12 (21) Application number: 89905300.0 (22) Date of filing: 17.04.1989

(51) International Patent Classification (IPC):  B63B 21/ 50( . ) F16B 21/ 02( . ) B63B 35/ 44( . ) (86) International application number: PCT/US1989/001644 (87) International publication number: WO 1989/011415 (30.11.1989 Gazette 1989/28)

(84) Designated Contracting States: DE FR GB IT NL SE (30) Priority: 20.05.1988 US 19880196258 (71) Applicant: Lockheed Corporation Calabasas California 91399-0430 (US)	(72) Inventor: PEPPEL, George, Walter Arlington, TX 79016 (US) (74) Representative: Boon, Graham Anthony  Elkington and Fife Prospect House 8 Pembroke Road Sevenoaks, Kent TN13 1XR Sevenoaks, Kent TN13 1XR (GB)