(19)

(11)

EP 0 229 763 A1

(12)

(43) Date of publication: 29.07.1987 Bulletin 1987/31 (21) Application number: 86900682.0 (22) Date of filing: 10.07.1985

(51) International Patent Classification (IPC):  F42B 12/ 38( . ) (86) International application number: PCT/US1985/001321 (87) International publication number: WO 1987/000263 (15.01.1987 Gazette 1987/01)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI SE (71) Applicant: LSI TECHNOLOGIES, INC. Westmont, NJ 08108 (US)	(72) Inventors: DE PHILLIPO, Thomas, E. Somerdale, NJ 08093 (US) KOWALICK, James, F. Ervine, CA 92714 (US) (74) Representative: Viard, Jean  Cabinet VIARD 28 bis, avenue Mozart F-75016 Paris F-75016 Paris (FR)