Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
December 1, 2009
Patent Application Number
10942179
Date Filed
September 16, 2004
Patent Primary Examiner
Patent abstract
An electro-dynamic loudspeaker includes a frame, a magnet and a diaphragm. The frame includes a body portion defining a magnet mounting surface as well as a plurality of protrusions extending from the magnet mounting surface. The magnet is magnetically attracted to the body portion of the frame. The magnet is restricted from movement along the magnet mounting surface by at least one protrusion. The diaphragm is spaced apart from the magnet and coupled to the frame.
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