Plastic and nonmetallic article shaping or treating: processes – With printing or coating of workpiece – Coating or impregnating workpiece before molding or shaping...
Reexamination Certificate
2006-12-04
2010-11-23
Michener, Jennifer K (Department: 1795)
Plastic and nonmetallic article shaping or treating: processes
With printing or coating of workpiece
Coating or impregnating workpiece before molding or shaping...
C264S045100, C501S001000, C087S001000
Reexamination Certificate
active
07837914
ABSTRACT:
A preform architecture and process for producing composite materials, and particularly CMC components. The process entails producing a composite component having a matrix material reinforced with a three-dimensional preform. The process includes producing first and second sets of tows containing filaments. Each tow of the first set has a predetermined cross-sectional shape and is embedded within a temporary matrix material formed of a material that is not the matrix material or a precursor of the matrix material. The preform is then fabricated from the first and second sets of tows, in which the second set of tows are transverse to the first set of tows, adjacent tows of the second set are spaced apart to define interstitial regions therebetween, and the cross-sectional shapes of the first set of tows are substantially congruent to the cross-sectional shapes of the interstitial regions so as to substantially fill the interstitial regions.
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The Oxford English Dictionary, 2nd Edition, 1989, definitions of “woven” and “braided.”
Oxford English Dictionary, Second Edition, 1989, definition of “congruent”.
Carper Douglas Melton
Kostar Timothy Daniel
Steibel James Dale
Subramanian Suresh
Andes William Scott
General Electric Company
Hartman Domenica N.S.
Hartman Gary M.
Michener Jennifer K
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