(19)

(11)

EP 2 706 898 A1

(12)

(43) Date of publication: 19.03.2014 Bulletin 2014/12 (21) Application number: 12725210.4 (22) Date of filing: 22.05.2012

(51) International Patent Classification (IPC):  A47L 5/36(2006.01) A47L 9/00(2006.01) A47L 7/00(2006.01) A47L 5/22(2006.01) (86) International application number: PCT/US2012/038912 (87) International publication number: WO 2012/159124 (22.11.2012 Gazette 2012/47)

(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: 19.05.2011 US 201161488147 P (71) Applicant: Kaivac, Inc. Hamilton, OH 45011 (US)	(72) Inventors: ROBINSON, Robert, S. Hamilton, OH 45011 (US) LLOYD, David, W. Hamilton, OH 45011 (US) KYDE, Robert, W. Fairfield, OH 45014 (US) RICHTER, John, T. Hamilton, OH 45013 (US) (74) Representative: Findlay, Alice Rosemary  Reddie & Grose LLP 16 Theobalds Road London WC1X 8PL London WC1X 8PL (GB)