The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 10, 2008
Filed:
Mar. 01, 2005
Christopher Combest, Leawood, KS (US);
Christopher Combest, Leawood, KS (US);
Multi Service Corporation, Overland Park, KS (US);
Abstract
A sound transducer () for imparting acoustical energy directly to a solid surface () while achieving the sound quality and frequency response found only in conventional diaphragm speakers. The sound transducer () comprises a pair of symmetrical magnet assemblies (), a pair of symmetrical voice coils (), and an actuator (). The magnet assemblies () each present an area of concentrated magnetic flux (). The symmetrical voice coils () are positioned in the vicinity of the areas of concentrated magnetic flux and are operable to receive an alternating audio signal which causes the voice coils to move relative to the magnet assemblies. The actuator () moves with the voice coils and includes a foot () for coupling with a solid surface to impart movement to the solid surface and thereby produce sound when the voice coils receive the audio signal. The actuator () is coupled to the voice coils () by an elongated shaft (). The shaft () is supported for linear movement by a pair of spaced-apart bearings ().