(19)

(11)

EP 3 688 548 A1

(12)

(43) Date of publication: 05.08.2020 Bulletin 2020/32 (21) Application number: 18892053.2 (22) Date of filing: 17.12.2018

(51) International Patent Classification (IPC):  G05F 1/46(2006.01) G05B 15/02(2006.01) H02M 1/14(2006.01) (86) International application number: PCT/US2018/066052 (87) International publication number: WO 2019/126062 (27.06.2019 Gazette 2019/26)

(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: KH MA MD TN (30) Priority: 20.12.2017 US 201762608016 P 09.02.2018 US 201815893135 (71) Applicant: Dean Technology, Inc. Addison, TX 75001 (US)	(72) Inventors: Dean, Craig S. Addison, TX 75001 (US) Roszel, Lynn E. Addison, TX 75001 (US) Wilson, Scott R. Addison, TX 75001 (US) Haugarth, Erik S. Addison, TX 75001 (US) Reuning, Jan S. Addison, TX 75001 (US) (74) Representative: Tomkinson, Alexandra  Bailey Walsh & Co LLP 1 York Place Leeds, LS1 2DR Leeds, LS1 2DR (GB)