Constrained layer damping for hearing assistance devices
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United States of America Patent
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Aug 5, 2014
Grant Date -
N/A
app pub date -
Dec 22, 2009
filing date -
Dec 31, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
Disclosed herein, among other things, is a system for constrained layer damping for hearing assistance devices. According to various embodiments, a hollow in-the-ear (ITE) hearing instrument shell is formed. The shell has an air space within a wall of the shell, in various embodiments. A port is created in the wall of the shell. The port is adapted to interface the air space to an area outside the shell, in an embodiment. A viscous fluid is dispensed into the air space via the port, and the viscous fluid is cured within the air space. The cured fluid acts as a constrained layer of mechanical damping within the wall of the ITE shell, reducing audible feedback to a wearer of the ITE.
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