(19)

(11)

EP 0 120 003 A1

(12)

(43) Date of publication: 03.10.1984 Bulletin 1984/40 (21) Application number: 82903384.0 (22) Date of filing: 30.09.1982

(51) International Patent Classification (IPC):  B64C 9/ 00( . ) G01B 7/ 30( . ) (86) International application number: PCT/US1982/001386 (87) International publication number: WO 1984/001426 (12.04.1984 Gazette 1984/10)

(84) Designated Contracting States: DE FR GB NL (71) Applicant: The Boeing Company Seattle Washington 98124 (US)	(72) Inventors: CHAU, Albert, Wing-Ping Redmond, WA 98052 (US) GEITHMAN, Glenn, Allen Renton, WA 98055 (US) LUMLEY, Laurence, Arthur Tacoma, WA 98422 (US) (74) Representative: Hoijtink, Reinoud  OCTROOIBUREAU ARNOLD & SIEDSMA Sweelinckplein 1 NL-2517 GK The Hague NL-2517 GK The Hague (NL)