(19)

(11)

EP 1 861 562 A2

(12)

(43) Date of publication: 05.12.2007 Bulletin 2007/49 (21) Application number: 05717140.7 (22) Date of filing: 23.03.2005

(51) International Patent Classification (IPC):  E04C 5/10(2006.01) E01D 19/16(2006.01) (86) International application number: PCT/EP2005/051358 (87) International publication number: WO 2006/099900 (28.09.2006 Gazette 2006/39)

(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 MC NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR LV MK YU (71) Applicant: VSL International AG 3014 Bern (CH)	(72) Inventor: CRIGLER, John R. Woodbine, Maryland 21797 (US) (74) Representative: BOVARD AG  Optingenstrasse 16 3000 Bern 25 3000 Bern 25 (CH)