(19)

(11)

EP 1 248 907 A1

(12)

(43) Date of publication: 16.10.2002 Bulletin 2002/42 (21) Application number: 01903067.5 (22) Date of filing: 12.01.2001

(51) International Patent Classification (IPC)7: F04F 5/46, F04F 5/24 (86) International application number: PCT/US0101/209 (87) International publication number: WO 0105/1818 (19.07.2001 Gazette 2001/29)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 13.01.2000 US 482995 13.11.2000 US 711499 (71) Applicant: Walker-Dawson Interests, Inc. Clinton, LA 70722 (US)	(72) Inventors: HUTCHINSON, Robert, J. Baton Rouge, LA 70817 (US) DAWSON, Richard, F. Clinton, LA 70722 (US) (74) Representative: Schwabe - Sandmair - Marx  Stuntzstrasse 16 81677 München 81677 München (DE)