US Patent 9024160 Silencer

A silencer includes: a main body including (a) a cylindrical portion whose outer circumferential surface is mounted on an inner circumferential surface of a bell of a wind instrument and (b) a closing portion configured to close one end portion of opposite end portions of the cylindrical portion; and a pipe including (i) a first end portion opening inside the main body and (b) a second end portion opening outside the main body. The first end portion of the pipe is disposed at a vicinity of the closing portion. The pipe is bent between the first end portion and the second end portion.