Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
June 28, 2011
Patent Application Number
11709544
Date Filed
February 22, 2007
Patent Citations Received
Patent Primary Examiner
Patent abstract
An earplug has a single very long main flange with a maximum diameter that is at least 80% of the length of the main flange, and at least 55% of the entire length of the earplug except for the stem. This allows the outside of the long flange to extend at a very small angle to the axial direction, and apply a constant force against the walls of the ear canal, for good and comfortable sealing to the ear canal.
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