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(11)

EP 1 651 400 A1

(12)

(43) Date of publication: 03.05.2006 Bulletin 2006/18 (21) Application number: 04778351.9 (22) Date of filing: 16.07.2004

(51) International Patent Classification (IPC):  B26F 1/44(1968.09) (86) International application number: PCT/US2004/022807 (87) International publication number: WO 2005/009698 (03.02.2005 Gazette 2005/05)

(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 PL PT RO SE SI SK TR (30) Priority: 17.07.2003 US 488570 P (71) Applicant: Ellison Educational Equipment, Inc. Lake Forest, CA 92630-8804 (US)	(72) Inventors: HUGHES, David, L., Jr. Rancho Santa Margarita, CA 92668 (US) CORCORAN, Kevin, L. Mission Viejo, CA 92651 (US) (74) Representative: Price, Nigel John King  J.A. Kemp & Co. 14 South Square Gray's Inn London WC1R 5JJ London WC1R 5JJ (GB)