(19)

(11)

EP 1 802 421 A2

(12)

(43) Date of publication: 04.07.2007 Bulletin 2007/27 (21) Application number: 05790890.7 (22) Date of filing: 07.10.2005

(51) International Patent Classification (IPC):  B23K 26/40(2006.01) B23B 27/20(2006.01) B23K 26/06(2006.01) C04B 41/50(2006.01) B28D 1/22(2006.01) (86) International application number: PCT/GB2005/003855 (87) International publication number: WO 2006/038017 (13.04.2006 Gazette 2006/15)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK YU (30) Priority: 07.10.2004 GB 0422318 13.06.2005 GB 0511966 (71) Applicant: Powerlase Limited Crawley, West Sussex RH10 9RA (GB)	(72) Inventors: WENDLAND, Jozef Powerlase Limited Crawley, West Sussex, RH10 9RA (GB) HARRISON, Paul Powerlase Limited Crawley, West Sussex, RH10 9RA (GB) HENRY, Matthew Powerlase Limited Crawley, West Sussex, RH10 9RA (GB) (74) Representative: Roberts, Gwilym Vaughan et al Kilburn & Strode 20 Red Lion Street London WC1R 4PJ London WC1R 4PJ (GB)