(19)

(11)

EP 4 073 448 A1

(12)

(43) Date of publication: 19.10.2022 Bulletin 2022/42 (21) Application number: 20900245.0 (22) Date of filing: 11.12.2020

(51) International Patent Classification (IPC):  F28D 7/02(2006.01) F28F 21/04(2006.01) F28D 17/00(2006.01) F28F 13/08(2006.01) (52) Cooperative Patent Classification (CPC): F28F 1/36; F28F 21/04; F28D 7/02; F28D 7/026; F28D 21/001; F28D 7/12 (86) International application number: PCT/US2020/064571 (87) International publication number: WO 2021/119466 (17.06.2021 Gazette 2021/24)

(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: 12.12.2019 US 201962947306 P (71) Applicant: Saint-Gobain Ceramics & Plastics Inc. Worcester, Massachusetts 01615-0138 (US)	(72) Inventors: BRISELDEN, Jacob T. Worcester, Massachusetts 01606 (US) REILLY, Thomas M. Dudley, Massachusetts 01571 (US) BRISELDEN, Thomas D. Worcester, Massachusetts 01606 (US) (74) Representative: Zimmermann & Partner Patentanwälte mbB  Josephspitalstr. 15 80331 München 80331 München (DE)