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Christopher Dale Jones

Steven Wayne Burd

Stephen Karl Kramer

David C Jarmon

Nikolaos Napoli

Bruce Bond

Xiaolan Hu

Christopher L Kogstrom

A fanciful shaped rosin and protective element for use in connection with the bow of a stringed instrument, wherein said fanciful shape is selected from one or more of the following shapes: heart, star, flower, plant, cross, letter, number, animal, football, soccer balls, baseball, basketball, human shape, shamrock, skull, Christmas tree, wreath, six pointed star, crucifix, planet, crescent moons, clef symbols, notes, rests, fermata, punctuation symbols, QWERTY keyboard symbols, percent symbol, ampersand, LOL, and a smiley face. The protective element preferably comprises a protective fabric attached to said rosin.

Shaped rosin and protective fabric

A ceramic matrix composite part having elongated cooling channels within the wall thereof is manufactured by inserting decomposable inserts within a woven ceramic fiber preform. The inserts are tows of continuous carbon fibers surrounded by a carbonaceous filler, and are inserted where the channels are desired. The preform, with the inserts in place, is disposed within a mold. A ceramic matrix material is added and the fiber preform is consolidated with the ceramic matrix material. The consolidated part is then heated to thermally decompose the inserts to create the elongated channels within the part. The inserts may be flexible and woven into the preform using an automated weaving loom, or they may have limited flexibility and be inserted by machine or by hand.

Process for making ceramic matrix composite parts with cooling channels

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Suffield, CT, United States of America

Christopher Dale Jones