(19)

(11)

EP 0 771 244 A1

(12)

(43) Date of publication: 07.05.1997 Bulletin 1997/19 (21) Application number: 95903499.0 (22) Date of filing: 29.09.1994

(51) International Patent Classification (IPC):  B23K 26/ 12( . ) B23P 6/ 00( . ) B23K 26/ 28( . ) F28F 11/ 00( . ) (86) International application number: PCT/US1994/009570 (87) International publication number: WO 1996/003250 (08.02.1996 Gazette 1996/07)

(84) Designated Contracting States: FR (30) Priority: 21.07.1994 US 19940278351 (71) Applicant: WESTINGHOUSE ELECTRIC CORPORATION Pittsburgh Pennsylvania 15222 (US)	(72) Inventors: KOZAK, Larry, Michael Greensburg, PA 15601 (US) NIELSEN, Steen, Erik DK-3320 Skaevinge (DK) (74) Representative: Smith, Gillian Ruth  MARKS & CLERK, 57-60 Lincoln's Inn Fields London WC2A 3LS London WC2A 3LS (GB)