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(11)

EP 2 178 411 A1

(12)

(43) Date of publication: 28.04.2010 Bulletin 2010/17 (21) Application number: 08727881.8 (22) Date of filing: 18.01.2008

(51) International Patent Classification (IPC):  A44B 13/00(2006.01) F16B 45/02(2006.01) (86) International application number: PCT/US2008/051399 (87) International publication number: WO 2009/091404 (23.07.2009 Gazette 2009/30)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (71) Applicant: Abels, David L. Chapel Hill, NC 27516 (US)	(72) Inventor: Abels, David L. Chapel Hill, NC 27516 (US) (74) Representative: Samuels, Adrian James  Dehns St Bride's House 10 Salisbury Square London EC4Y 8JD London EC4Y 8JD (GB)