(19)

(11)

EP 1 137 506 A1

(12)

(43) Date of publication: 04.10.2001 Bulletin 2001/40 (21) Application number: 99940747.1 (22) Date of filing: 19.08.1999

(51) International Patent Classification (IPC)7: B23D 33/02, B23K 26/02, B23K 37/047, B26D 7/01 (86) International application number: PCT/NZ9900/136 (87) International publication number: WO 0010/760 (02.03.2000 Gazette 2000/09)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 19.08.1998 NZ 33143498 (71) Applicant: Sullivan & Haddon Group Limited Mt. Wellington,Auckland 1006 (NZ)	(72) Inventor: COUBRAY, Bruce Arthur St Heliers,Auckland 1005 (NZ) (74) Representative: Church, Simon John et al Lewis & Taylor144 New Walk Leicester LE1 7JA Leicester LE1 7JA (GB)