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US 4,827,914 AGranted
Motorized vibrator with reciprocating motion
AssigneeKeitatsu Co., Ltd.
InventorMitsuo Kamazawa
Life of this patent
Estimating the term…
Abstract
A vibrator is used by pressing a vibrating member vibrated by the action of a driving source onto a shoulder or other parts of the body. A space is defined within the vibrating member, and an idler is movably disposed within the space. The idler may be composed of, for example, a solid cylindrical body, an elastically deformable cylindrical body, or a powdery or granular material.
Claims12
A vibrator, comprising:
- a vibrating member adapted to be vibrated by the action of a driving source, said vibrating member including a body with a peripheral surface and end surfaces defining a space;
- an idler freely disposed in the space so as to be free to move within the space in response to movement of the body, said idler being in contact with said peripheral surface, and said idler being free to move into and out of contact with said end surfaces.
Dependencies are inferred from the claim text.