Cleanable in-the-ear electroacoustic transducer
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 31, 1989
Grant Date -
N/A
app pub date -
Oct 14, 1987
filing date -
Oct 14, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hearing aid including a microphone, an adjustable amplifier, and a transducer comprising an acoustic driver driving a diaphragm disposed within an acoustic chamber, all mounted in an in-the-ear housing having a sound outlet passage leading from the acoustic chamber into the user's ear canal, is provided with a cleaning passage that is accessible from the outside of the housing and that connects to the inner end of the sound outlet passage, through a portion of the acoustic chamber. Throughout internal cleaning is effected by pumping a solvent through the continuous conduit formed by the cleaning passage, the acoustic chamber, and the sound outlet passage, without disassembly of the hearing aid.
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