Vibration device

Details Vibration device Vibration device

2011-08-09

2011-08-09

Ro, Bentsu (Department: 2837)

Electricity: motive power systems

Impact, mechanical shock, or vibration-producing motors

C318S119000, C318S255000, C310S051000

Reexamination Certificate

active

07994741

ABSTRACT:
The present invention pertains to vibration devices that do not require a rotating mass. In accordance with aspects of the invention, a coil causes a plunger to move linearly. A spring device is coupled to one end of the plunger. Activation of the coil causes the plunger to move in a first direction relative to a body and coil deactivation enables the spring device to move the plunger in an opposite direction relative to the body. Activating the coil at a predetermined frequency causes vibration of the plunger. Vibratory forces are transferred via the spring device and coil onto the body at predetermined locations. Opposing spring devices may be affixed to either end of the plunger. Spring devices may be linear or non-linear. Such spring devices may be used in conjunction with magnetic spring devices. A controller and a driver circuit may be used to control system operation.

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