(19)

(11)

EP 1 631 446 A2

(12)

(88) Date of publication A3: 24.03.2005 (43) Date of publication: 08.03.2006 Bulletin 2006/10 (21) Application number: 04706473.8 (22) Date of filing: 29.01.2004

(51) International Patent Classification (IPC):  B30B 1/00(1968.09) (86) International application number: PCT/US2004/002466 (87) International publication number: WO 2004/067270 (12.08.2004 Gazette 2004/33)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR (30) Priority: 29.01.2003 US 443702 P (71) Applicant: KURT MANUFACTURING COMPANY, INC. Minneapolis, MN 55421 (US)	(72) Inventors: SCHROEDER, Duane New Hope, MN 55427 (US) KOSKI, Raymond, J. Andover, MN 55304 (US) (74) Representative: Cross, Rupert Edward Blount  BOULT WADE TENNANT, Verulam Gardens 70 Gray's Inn Road London WC1X 8BT London WC1X 8BT (GB)