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:
Nov. 29, 2022
Filed:
Aug. 12, 2019
Safran Ceramics, Le Haillan, FR;
Franck Lamouroux, Moissy-Cramayel, FR;
Rémy Dupont, Moissy-Cramayel, FR;
Sébastien Bertrand, Moissy-Cramayel, FR;
Stéphane Roger André Goujard, Moissy-Cramayel, FR;
Matthieu Champagne, Moissy-Cramayel, FR;
Olivier Clausse, Moissy-Cramayel, FR;
Jean-Michel Garcia, Moissy-Cramayel, FR;
Jeff Roustand, Moissy-Cramayel, FR;
SAFRAN CERAMICS, Le Haillan, FR;
Abstract
A method for densifying porous annular substrates by chemical vapor infiltration, includes providing a plurality of unit modules including a support tray on which substrates are stacked, the support tray including a gas intake opening extended by an injection tube disposed in an internal volume formed by the central passages of the stacked substrates, the injection tube including gas injection orifices opening into the internal volume, forming stacks of unit modules in the enclosure of a densification furnace and injecting, into the stacks of unit modules, a gas phase including a gas precursor of a matrix material to be deposited within the porosity of the substrates.