(19)

(11)

EP 2 016 595 A1

(12)

(43) Date of publication: 21.01.2009 Bulletin 2009/04 (21) Application number: 06759639.5 (22) Date of filing: 11.05.2006

(51) International Patent Classification (IPC):  H01B 17/62(2006.01) (86) International application number: PCT/US2006/018367 (87) International publication number: WO 2007/133202 (22.11.2007 Gazette 2007/47)

(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 (71) Applicant: G & W ELECTRIC COMPANY Blue Island, Illinois 60406-1864 (US)	(72) Inventor: YANG, Zhou, Ming Shanghai 200433 (CN) (74) Representative: Makovski, Priscilla Mary  Barker Brettell LLP 138 Hagley Road Edgbaston Birmingham B16 9PW Edgbaston Birmingham B16 9PW (GB)