Robust low profile shaker

Details Robust low profile shaker Robust low profile shaker

2009-11-12

2011-11-22

Chapman, Jr., John (Department: 2856)

Measuring and testing

Vibration

Vibrator

C297S217400

Reexamination Certificate

active

08061210

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.

REFERENCES:
patent: 4697581 (1987-10-01), Endo et al.
patent: 6211775 (2001-04-01), Lee et al.
patent: 6256397 (2001-07-01), Komatsu
patent: 7069787 (2006-07-01), Crowson, II

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