Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Engbert Wilmink0
Date of Patent
August 24, 2010
Patent Application Number
10577809
Date Filed
October 28, 2004
Patent Citations Received
Patent Primary Examiner
Patent abstract
Earplug comprising a plug member for blocking a man's ear canal, said plug member comprising at least one acoustic channel for channeling incoming acoustic energy to said man's ear. According to the invention, a detector for detecting an acoustic energy level or for detecting a control signal that is indicative for an acoustic energy level to be received, an acoustic valve positioned in said channel, and a control unit that, in response to said detector, controls said valve so as to attenuate the acoustic energy channeled through said acoustic channel.
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