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.
Claims20
A moveable assembly for imparting motion to a moveable platform in conjunction with analog electrical signals from an external source, comprising:
- a bottom portion;
- a moveable top portion opposing the bottom portion;
- a spring assembly including at least one pin fixedly connected to the bottom portion for receiving at least a portion of a spring assembly where by the pin provides resilient transverse support between the bottom portion and the top 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 motion corresponding to a combination of frequencies in at least the top portion in connection with the analog electrical signals from the external source.
A moveable assembly for imparting variable motion to at least a portion of a person, comprising:
- a bottom portion;
- a moveable top portion opposing the bottom portion;
- 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;
- a spring assembly for providing resilient support between the bottom portion and the top portion, wherein the spring assembly is capable of compressing to support the weight of the portion of the person and includes at least one pin element for receiving at least a portion of the spring assembly whereby the pin element functions at least partially to align the top portion with the bottom portion during said compression.
A moveable assembly shaped and suited for use between a fixed surface and moveable object, comprising:
- a bottom portion, the bottom portion comprising a rigid surface;
- a top portion opposing the bottom portion, the top portion comprising a substantially planar rigid surface;
- a spring assembly for providing resilient support between the bottom portion and the top portion, the spring assembly including at least one pin element for receiving at least a portion of a spring assembly whereby the pin provides resilient transverse support to the spring assembly;
- and
- an electromagnetic assembly, the electromagnetic assembly comprising at least one opposing coil-magnet pair being operatively integrated with the top portion and with the bottom portion in order to produce variable motion substantially along a single axis in at least the top portion.
Dependencies are inferred from the claim text.