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. 01, 2023
Filed:
Mar. 20, 2020
Safran, Paris, FR;
Ngadia Taha Niane, Moissy-Cramayel, FR;
Saïd Boukerma, Moissy-Cramayel, FR;
Camille Mettoux, Moissy-Cramayel, FR;
SAFRAN, Paris, FR;
Abstract
A process for manufacturing a plurality of single-crystal nozzle sectors each including at least a first blade extending between two platforms by lost-wax casting, includes casting a molten metal into a plurality of ceramic molds distributed in a cluster about an axis, and directional solidification of the cast metal in a furnace comprising a radiant heating element configured to be arranged around the cluster, a solidification front of the metal advancing in each mold in a direction parallel to the cluster axis during directional solidification. Each mold of a second shell separate from a first molding shell of the nozzle sector, which delimits a second cavity for molding a dummy blade acting as a heat shield.