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:
Jun. 10, 2025
Filed:
Nov. 09, 2022
Safran Ceramics, Le Haillan, FR;
Franck Lamouroux, Moissy-Cramayel, FR;
Adrien Delcamp, Moissy-Cramayel, FR;
SAFRAN CERAMICS, Le Haillan, FR;
Abstract
A method for densification by Chemical Vapor Infiltration of a plurality of fibrous preforms arranged in the enclosure of a densification furnace, the method including at least the following procedures a) and b), each being repeated more than once: a) introducing a first gaseous phase, the thermal decomposition of which allows the matrix to form in the pores of the plurality of fibrous preforms; b) introducing a second gaseous phase while simultaneously placing the enclosure of the furnace under vacuum, such that the introduction of the second gaseous phase takes place at the same time as the expulsion of the first gaseous phase out of the enclosure, the temperature of the second gaseous phase being less than or equal to 25° C. when it is introduced into the enclosure of the furnace.