(19)

(11)

EP 0 120 837 A1

(12)

(43) Date of publication: 10.10.1984 Bulletin 1984/41 (21) Application number: 82903105.0 (22) Date of filing: 16.09.1982

(51) International Patent Classification (IPC):  E05B 47/ 02( . ) (86) International application number: PCT/US1982/001270 (87) International publication number: WO 1984/001180 (29.03.1984 Gazette 1984/09)

(84) Designated Contracting States: CH DE FR GB LI NL SE (71) Applicant: Lockheed Corporation Burbank California 91520 (US)	(72) Inventor: LEVINE, Harold, Henry Northridge, CA 91324 (US) (74) Representative: Boon, Graham Anthony, et al  Elkington and Fife Prospect House 8 Pembroke Road Sevenoaks, Kent TN13 1XR Sevenoaks, Kent TN13 1XR (GB)