Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Gerhard Röhrlein0
Date of Patent
July 19, 2011
0Patent Application Number
117028740
Date Filed
February 6, 2007
0Patent Citations Received
Patent Primary Examiner
Patent abstract
With a hearing aid device barometric pressure equalization is intended to be achieved in a simple and economical manner in a sound canal between an earpiece and a cerumen protection system with a gas-tight membrane. To this end a pressure equalization canal is proposed, which opens into the sound canal. The pressure equalization canal preferably connects the sound canal to a vent. It can be produced in a simple manner when manufacturing the housing of the hearing aid device using a computer-aided manufacturing method.
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