(19)

(11)

EP 0 051 607 A1

(12)

(43) Date of publication: 19.05.1982 Bulletin 1982/20 (21) Application number: 81900995.0 (22) Date of filing: 15.05.1980

(51) International Patent Classification (IPC):  C21B 13/ 06( . ) C22B 5/ 12( . ) F27B 3/ 22( . ) C21B 13/ 14( . ) C22B 9/ 16( . ) (86) International application number: PCT/US1980/000567 (87) International publication number: WO 1981/003342 (26.11.1981 Gazette 1981/28)

(84) Designated Contracting States: AT CH DE FR GB LI LU NL SE (71) Applicant: Rose, Robert Nelson - Darien Connecticut 06820 (US)	(72) Inventor: Rose, Robert Nelson - Darien Connecticut 06820 (US)