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:
Dec. 29, 2020
Filed:
Dec. 22, 2017
Safran, Paris, FR;
Safran Aircraft Engines, Paris, FR;
Ngadia Taha Niane, Moissy-Cramayel, FR;
Ramzi Bohli, Moissy-Cramayel, FR;
Loic Galvin, Moissy-Cramayel, FR;
Said Boukerma, Moissy-Cramayel, FR;
SAFRAN, Paris, FR;
SAFRAN AIRCRAFT ENGINES, Paris, FR;
Abstract
A cluster model and a shell for the production, by lost wax casting, of a plurality of turbomachine elements, are provided. The shell includes a central sprue that is fluidly connected to a casting cup for receiving molten metal; a plurality of shell elements; a plurality of bottom feed conduits for the shell elements; and a handling accessory shell that is independent of the plurality of shell elements and of their metal supply circuit, such that there is no fluid connection to the shell elements. The handling accessory shell is fluidly connected to the central sprue so as to allow top-pour casting of the handling accessory shell.