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:
Jul. 28, 2026
Filed:
May. 23, 2024
Applicant:
Rtx Corporation, Farmington, CT (US);
Inventors:
Brendan Lenz, North Branford, CT (US);
John D. Riehl, Hebron, CT (US);
Nil Parikh, Newington, CT (US);
Olivier H. Sudre, Glastonbury, CT (US);
Assignee:
RTX CORPORATION, Farmington, CT (US);
Primary Examiner:
Int. Cl.
CPC ...
C04B 35/80 (2006.01);
U.S. Cl.
CPC ...
C04B 35/80 (2013.01); C04B 2235/606 (2013.01); C04B 2235/608 (2013.01); C04B 2235/616 (2013.01); C04B 2235/65 (2013.01);
Abstract
A method of spreading fibers of a tow including heat treating a fibrous preform having a plurality of tows and a resin mixture including an alcohol soluble binder, washing the fibrous preform with a solution of water and a water-soluble binder such that the solution occupies an intra-tow space of the plurality of tows, freezing the solution in the intra-tow space of the plurality of tows, and freeze-drying the fibrous preform. The method also includes making a CMC from the fibrous preform with spread tows.