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(11)

EP 4 433 260 A1

(12)

(43) Date of publication: 25.09.2024 Bulletin 2024/39 (21) Application number: 22896458.1 (22) Date of filing: 17.11.2022

(51) International Patent Classification (IPC):  B24C 5/00(2006.01) B06B 3/04(2006.01) A61B 17/32(2006.01) (52) Cooperative Patent Classification (CPC): B24B 7/22; B24B 1/04 (86) International application number: PCT/US2022/050201 (87) International publication number: WO 2023/091545 (25.05.2023 Gazette 2023/21)

(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: KH MA MD TN (30) Priority: 19.11.2021 US 202163281156 P (71) Applicant: Raytheon Technologies Corporation Farmington, CT 06032 (US)	(72) Inventors: WANG, Zhigang South Windsor, Connecticut 06074 (US) RIEHL, John D. Hebron, Connecticut 06248 (US) FERNANDEZ, Robin H. East Haddam, Connecticut 06423 (US) KUCZEK, Andrzej Ernest Bristol, Connecticut 06010 (US) SRINIVASAN, Gajawalli V. South Windsor, Connecticut 06074 (US) (74) Representative: Dehns  St. Bride's House 10 Salisbury Square London EC4Y 8JD London EC4Y 8JD (GB)