(19)

(11)

EP 1 851 431 A2

(12)

(43) Date of publication: 07.11.2007 Bulletin 2007/45 (21) Application number: 06719779.8 (22) Date of filing: 27.01.2006

(51) International Patent Classification (IPC):  F04B 17/00(2006.01) (86) International application number: PCT/US2006/003072 (87) International publication number: WO 2006/081488 (03.08.2006 Gazette 2006/31)

(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: 28.01.2005 US 593608 P 05.12.2005 US 293982 (71) Applicant: Thibodeau, Robert Gloucester, Massachusetts 01930 (US)	(72) Inventor: Thibodeau, Robert Gloucester, Massachusetts 01930 (US) (74) Representative: Lawrence, John  Barker Brettell 138 Hagley Road Edgbaston Birmingham B16 9PW Birmingham B16 9PW (GB)