Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
John Keady0
Date of Patent
June 26, 2012
0Patent Application Number
123600010
Date Filed
January 26, 2009
0Patent Citations Received
Patent Primary Examiner
Patent abstract
Acoustic reflective devices are provided. An acoustic reflective device is configured to be inserted into an orifice. The device includes a stressing device that can vary a volume in response to a voltage difference across a portion of the stressing device. The stressing device is at least partially surrounded by a membrane.
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