The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 11, 2026
Filed:
Apr. 02, 2025
Rtx Corporation, Farmington, CT (US);
Jonas Banhos, West Hartford, CT (US);
James T Roach, Vernon, CT (US);
Russell Kim, Temecula, CA (US);
Raymond Surace, Newington, CT (US);
Howard J Liles, Newington, CT (US);
RTX CORPORATION, Farmington, CT (US);
Abstract
A ceramic matrix composite (CMC) blade outer air seal (BOAS) segment includes a preform having a base layup formed of one or more fabric plies folded to form a first rib portion, a shoe portion having an upstream fold edge and a downstream fold edge, and a second rib portion. One or more pre-densified CMC tubes are disposed circumferentially between the first rib portion and the upstream fold edge and between the second rib portion and the downstream fold edge, respectively. An outer wrap formed of one or more fabric plies is disposed to overwrap the first rib portion, the one or more pre-densified CMC tubes disposed circumferentially between the first rib portion and the upstream fold edge, the upstream fold edge, the downstream fold edge, the one or more pre-densified CMC tubes disposed circumferentially between the second rib portion and the downstream fold edge, and the second rib portion.