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:
Oct. 05, 2021
Filed:
Jun. 22, 2018
Safran Aircraft Engines, Paris, FR;
Matthieu Jean Luc Vollebregt, Asnieres sur Seine, FR;
Coralie Cinthia Guerard, Colombes, FR;
Patrick Emilien Paul Emile Huchin, Tessancourt sur Aubette, FR;
Joseph Toussaint Tami Lizuzu, Gonesse, FR;
SAFRAN AIRCRAFT ENGINES, Paris, FR;
Abstract
A method is for positioning a hollow workpiece obtained by casting and that enables the workpiece obtained in this way to be machined in accurate manner. The workpiece is obtained by a casting method involving a mold and a sacrificial core inserted inside the mold and serving to form at least one cavity in the workpiece. The workpiece includes surfaces of a first type defined during casting by the surfaces of the mold, and surfaces of a second type defined during casting by the surfaces of the core. A frame of reference for positioning the workpiece is constructed that includes at least three reference points (P-P) belonging to surfaces of the second type of the workpiece.