(19)

(11)

EP 1 937 971 A1

(12)

(43) Date of publication: 02.07.2008 Bulletin 2008/27 (21) Application number: 06759498.6 (22) Date of filing: 10.05.2006

(51) International Patent Classification (IPC):  F04B 35/04(2006.01) A47C 27/08(2006.01) (86) International application number: PCT/US2006/018098 (87) International publication number: WO 2007/040643 (12.04.2007 Gazette 2007/15)

(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 (30) Priority: 30.09.2005 US 239998 (71) Applicant: Aero Products International, Inc. Schaumburg, Illinois 60173 (US)	(72) Inventors: AUSTEN, Timothy, F. Glencoe, IL 60022 (US) SEN, Wen, Ta Taipei City 114 (TW) (74) Representative: McLeish, Nicholas Alistair Maxwell  Boult Wade Tennant Verulam Gardens 70 Gray's Inn Road London WC1X 8BT London WC1X 8BT (GB)