(19)

(11)

EP 4 058 661 A1

(12)

(43) Date of publication: 21.09.2022 Bulletin 2022/38 (21) Application number: 19952945.4 (22) Date of filing: 11.11.2019

(51) International Patent Classification (IPC):  F01M 13/04(2006.01) B01D 53/26(2006.01) (52) Cooperative Patent Classification (CPC): F01M 13/04; B01D 53/261; B01D 2253/102; B01D 2253/104; B01D 2253/108; B01D 2253/106; B01D 2253/11; B01D 2253/202; B01D 2252/2023; B01D 53/0454; B01D 53/263; B01D 2252/10; F01M 2013/0438 (86) International application number: PCT/US2019/060718 (87) International publication number: WO 2021/096480 (20.05.2021 Gazette 2021/20)

(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 (71) Applicant: Des-Case Corporation Goodlettsville, Tennessee 37072-1302 (US)	(72) Inventors: GAIKWAD, Nikhil Rajkumar Goodlettsville, Tennessee 37072 (US) HAWORTH, Jonathan Lee Goodlettsville, Tennessee 37072 (US) COOPER, Jay Michael Goodlettsville, Tennessee 37072 (US) PRIDE, Eric Cooper Goodlettsville, Tennessee 37072 (US) (74) Representative: Baldwin, Mark  Firebird IP 27 Old Gloucester Street London WC1N 3AX London WC1N 3AX (GB)