(19)

(11)

EP 2 621 686 A1

(12)

(43) Date of publication: 07.08.2013 Bulletin 2013/32 (21) Application number: 11749723.0 (22) Date of filing: 17.06.2011

(51) International Patent Classification (IPC):  B25H 7/02(2006.01) E04F 21/20(2006.01) B25H 7/04(2006.01) (86) International application number: PCT/EP2011/003054 (87) International publication number: WO 2012/010239 (26.01.2012 Gazette 2012/04)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 21.07.2010 NL 1038119 (71) Applicant: Kooistra, Albert-Cor 3822 DR Amersfoort (NL)	(72) Inventor: Kooistra, Albert-Cor 3822 DR Amersfoort (NL) (74) Representative: Van Breda, Jacobus  Octrooibureau Los en Stigter B.V. P.O. Box 20052 NL-1000 HB Amsterdam NL-1000 HB Amsterdam (NL)