(19)

(11)

EP 1 202 652 A1

(12)

(43) Date of publication: 08.05.2002 Bulletin 2002/19 (21) Application number: 00943223.8 (22) Date of filing: 28.06.2000

(51) International Patent Classification (IPC)7: A47C 1/126, A47C 1/16, E04H 3/12 (86) International application number: PCT/US0017/719 (87) International publication number: WO 0106/894 (01.02.2001 Gazette 2001/05)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 22.07.1999 US 359227 (71) Applicant: SICO INCORPORATED Minneapolis, MN 55440 (US)	(72) Inventors: BOTTS, Rollin, D. Bloomington, MN 55437 (US) LUEDKE, Thomas, J. Apple Valley, MN 55124 (US) (74) Representative: Pawlyn, Anthony Neil  Urquhart-Dykes & Lord,Tower House,Merrion Way Leeds,West Yorkshire LS2 8PA Leeds,West Yorkshire LS2 8PA (GB)