(19)

(11)

EP 1 838 964 A2

(12)

(43) Date of publication: 03.10.2007 Bulletin 2007/40 (21) Application number: 06733662.8 (22) Date of filing: 11.01.2006

(51) International Patent Classification (IPC):  F04B 49/00(2006.01) F04B 17/00(2006.01) (86) International application number: PCT/US2006/000785 (87) International publication number: WO 2006/076339 (20.07.2006 Gazette 2006/29)

(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 (30) Priority: 14.01.2005 US 36782 (71) Applicant: Bach, David T. Ellicott City, MD 21043 (US)	(72) Inventor: Bach, David T. Ellicott City, MD 21043 (US) (74) Representative: Badger, John Raymond  J.R. Badger & Co., 6 Simpson Road, Wylde Green Sutton Coldfield B72 1EP Sutton Coldfield B72 1EP (GB)