(19)

(11)

EP 3 585 232 A1

(12)

(43) Date of publication: 01.01.2020 Bulletin 2020/01 (21) Application number: 17897290.7 (22) Date of filing: 27.02.2017

(51) International Patent Classification (IPC):  A47L 9/19(2006.01) (86) International application number: PCT/CN2017/075034 (87) International publication number: WO 2018/152843 (30.08.2018 Gazette 2018/35)

(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 Designated Extension States: BA ME Designated Validation States: MA MD (71) Applicant: TTI (Macao Commercial Offshore) Limited Macao (MO)	(72) Inventors: TRUITT, Patrick Concord, NC 28027 (US) SUMRAIN, Shadi Hudson, OH 44236 (US) (74) Representative: Ashton, Timothy  Forresters IP LLP Skygarden Erika-Mann-Strasse 11 80636 München 80636 München (DE)