Patent ID: 6862361

Claim:
An audio speaker, comprising: a chassis; a diaphragm defining an axis; a suspension movably interconnecting said diaphragm and said chassis for reciprocating movement of said diaphragm along said axis; a motor operably connected to said diaphragm for powered movement thereof; and wherein: said diaphragm includes first and second skins, at least a portion of at least one said skin having a generally conical shape, and each said skin defines outer peripheral edges, said skins being interconnected at said outer peripheral edges, said conical shape oriented to form a cavity between said skins having an enlarged central portion tapering to a thinner peripheral portion adjacent said outer peripheral edges, said diaphragm including lightweight core material at least partially filling said cavity and supporting said front and rear skins is constructed to substantially maintain its shape while undergoing the reguired axial excursions to produce sound, said diaphragm includes a cylindrical flange extending parallel to said axis from the outer peripheral edge of said diaphragm to partially surround said motor, and wherein said suspension includes a first flexible suspension member secured to said chassis and to said diaphragm adjacent said outer peripheral edge, said suspension further including a second flexible suspension member secured to said chassis and to said cylindrical flange.