(19)

(11)

EP 0 539 440 A1

(12)

(43) Date of publication: 05.05.1993 Bulletin 1993/18 (21) Application number: 91913056.0 (22) Date of filing: 17.07.1991

(51) International Patent Classification (IPC):  B05B 7/ 08( . ) C23C 4/ 12( . ) (86) International application number: PCT/GB1991/001188 (87) International publication number: WO 1992/001822 (06.02.1992 Gazette 1992/04)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI NL SE (30) Priority: 19.07.1990 GB 19900015833 19.07.1990 GB 19900015839 09.03.1991 GB 19910005014 (71) Applicant: OSPREY METALS LIMITED Millands Neath West Glamorgan SA11 1NJ (GB)	(72) Inventors: COOMBS, Jeffrey, Stuart 97 Lewis Road Cimla West Glamorgan SA11 1DJ (GB) FORREST, James, Burnett 28 Gwerneinon Road Swansea SA2 8EN (GB) (74) Representative: Wilson, Nicholas Martin  WITHERS & ROGERS 4 Dyer's Buildings Holborn London EC1N 2JT London EC1N 2JT (GB)