(19)

(11)

EP 3 903 004 A1

(12)

(43) Date of publication: 03.11.2021 Bulletin 2021/44 (21) Application number: 19907328.9 (22) Date of filing: 19.12.2019

(51) International Patent Classification (IPC):  F04C 11/00(2006.01) F04C 15/06(2006.01) F04C 15/00(2006.01) (52) Cooperative Patent Classification (CPC): F01C 21/10; F04C 2/086; F04C 2/102; F04C 2/22; F04C 2/3442; F04C 11/005; F04C 11/00 (86) International application number: PCT/IB2019/061144 (87) International publication number: WO 2020/141393 (09.07.2020 Gazette 2020/28)

(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: 31.12.2018 US 201862786961 P (71) Applicant: Stackpole International Engineered Products, Ltd. Mississauga, Ontario L5J 1K7 (CA)	(72) Inventors: VALKENBERG, Ralph 52222 Stolberg (DE) BOUWMEESTER, Luke Toronto, Ontario M5J 0E1 (CA) (74) Representative: Carpmaels & Ransford LLP  One Southampton Row London WC1B 5HA London WC1B 5HA (GB)