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:
Mar. 31, 1998
Filed:
Aug. 25, 1995
Applicant:
Inventors:
Susan Lydia Bors, Wilmington, DE (US);
Albert Zaki Fresco, Chadds Ford, PA (US);
Mark Henry Headinger, Hockessin, DE (US);
Assignee:
Du Pont Lanxide Composites, L.P., Newark, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B / ; C04B / ; C03C / ; C03C / ;
U.S. Cl.
CPC ...
428397 ; 428212 ; 428245 ; 428336 ; 428366 ; 428367 ; 428378 ; 428380 ; 428384 ; 428408 ; 428688 ; 428689 ; 428698 ;
Abstract
A thermostructural composite article and a method for making in which the article comprises silicon carbide reinforcing fibers having an oxygen content by weight of not more than about 14% and an average diameter of less than about 20 microns in a refractory matrix at least partially formed by chemical vapor infiltration. The fibers in the composite article of the invention have an end-to-end fiber diameter uniformity ratio of less than about 1.5.