Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
November 22, 2011
Patent Application Number
12590645
Date Filed
November 12, 2009
Patent Citations Received
Patent Primary Examiner
Patent abstract
An electrodynamic shaker apparatus is disclosed for providing shaking and/or vibrational motion. The shaker includes armature and stator assemblies as well as a distributed spring assembly. The shaker apparatus of the present invention is robust, supports increased off-center loads, and has a low profile such that it may be easily placed under an item of furniture in order to impart vibrational motion in response to electrical signals from a variety of sources.
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