(19)

(11)

EP 4 680 907 A1

(12)

(43) Date of publication: 21.01.2026 Bulletin 2026/04 (21) Application number: 24711995.1 (22) Date of filing: 12.03.2024

(51) International Patent Classification (IPC):  F27B 14/06(2006.01) F27D 1/00(2006.01) F27B 14/08(2006.01) F27D 1/16(2006.01) (52) Cooperative Patent Classification (CPC): F27B 14/065; F27B 14/08; F27D 1/0003; F27D 1/16; F27D 1/1621 (86) International application number: PCT/EP2024/056539 (87) International publication number: WO 2024/189017 (19.09.2024 Gazette 2024/38)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: GE KH MA MD TN (30) Priority: 14.03.2023 US 202363451967 P (71) Applicant: FOSECO INTERNATIONAL LIMITED London EC4A 2AE (GB)	(72) Inventors: KUCMAN, Kevin Welland, Ontario L3C 6N2 (CA) SMITH, David C. Canonsburg, Pennsylvania 15317 (US) (74) Representative: Marlière, Stéphanie  Vesuvius Group S.A. Rue de Douvrain, 17 7011 Ghlin 7011 Ghlin (BE)