(19)

(11)

EP 1 691 630 A1

(12)

(43) Date of publication: 23.08.2006 Bulletin 2006/34 (21) Application number: 04800222.4 (22) Date of filing: 26.11.2004

(51) International Patent Classification (IPC):  A23N 12/02(2006.01) F16H 7/02(2006.01) A22C 29/00(2006.01) B08B 1/04(2006.01) (86) International application number: PCT/NZ2004/000304 (87) International publication number: WO 2005/051107 (09.06.2005 Gazette 2005/23)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LU MC NL PL PT RO SE SI SK TR (30) Priority: 26.11.2003 NZ 52977103 (71) Applicant: WYMA Engineering (NZ) Limited Hornby, Christchurch 8004 (NZ)	(72) Inventor: BARCLAY, Andrew James Christchurch (NZ) (74) Representative: Jackson, Nicholas Andrew et al Appleyard Lees, 15 Clare Road Halifax HX1 2HY Halifax HX1 2HY (GB)