(19)

(11)

EP 0 128 143 A1

(12)

(43) Date of publication: 19.12.1984 Bulletin 1984/51 (21) Application number: 83900891.0 (22) Date of filing: 21.12.1982

(51) International Patent Classification (IPC):  B64C 1/ 14( . ) (86) International application number: PCT/US1982/001782 (87) International publication number: WO 1984/002505 (05.07.1984 Gazette 1984/16)

(84) Designated Contracting States: DE FR GB NL (71) Applicant: THE BOEING COMPANY Seattle Washington 98124 (US)	(72) Inventor: MARAGHE, Alex Seattle, WA 98115 (US) (74) Representative: Konings, Lucien Marie Cornelis Joseph, et al  Arnold & Siedsma, Advocaten en Octrooigemachtigden, Sweelinckplein 1 NL-2517 GK Den Haag NL-2517 GK Den Haag (NL)