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(11)

EP 1 692 346 A2

(12)

(43) Date of publication: 23.08.2006 Bulletin 2006/34 (21) Application number: 04817322.3 (22) Date of filing: 29.09.2004

(51) International Patent Classification (IPC):  E02D 1/00(2006.01) (86) International application number: PCT/US2004/031932 (87) International publication number: WO 2005/040505 (06.05.2005 Gazette 2005/18)

(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 Designated Extension States: AL HR LT LV MK (30) Priority: 21.10.2003 US 690489 (71) Applicant: WHITSETT, Michael Bush, LA 70431 (US)	(72) Inventor: WHITSETT, Michael Bush, LA 70431 (US) (74) Representative: Wagner, Karl H.  WAGNER & GEYER Patentanwälte Gewürzmühlstrasse 5 80538 München 80538 München (DE)