Patent ID: 9749759
Date: 2017-08-29
CPC Classifications: H04R

Claim:
1. A hearing device, comprising: an earpiece defining an outer surface; a transducer with a sound port that is lateral of the earpiece outer surface; and a sound tube defining an inner surface, an outer surface, a first section and a second section that is lateral of the first section, the inner surface of the first section having a textural pattern defining convexities and/or concavities and configured to create capillary forces that oppose movement of contaminants out of the first section, at least some of the convexities and/or concavities being located medial of the earpiece outer surface, and the inner surface of the second section lacking convexities and concavities and being mounted on the transducer sound port; wherein the first and second sections together define an integral one-piece structure.