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US 2012/0060616 A1Published application
Robust low profile shaker
OwnerRandolph J. Crowson, IIinventor
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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.
Claims17
A moveable assembly for use in connection with audio/video equipment for
- imparting variable motion to an object of furniture, comprising:
- a bottom portion;
- a moveable top portion opposing the bottom portion;
- and
- an electromagnetic assembly, a portion of the electromagnetic assembly being integrated with the top portion and another portion of the electromagnetic assembly being integrated with the bottom portion in order to produce variable motion in at least the top portion in synchronization with electrical signals from the audio/video equipment.
2 more elements
Dependencies are inferred from the claim text.