Electric toothbrush with vibration
US5651157A · kind A · utility
64Cited by
4References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 17, 1996 |
| Grant date | Jul 29, 1997 |
| Priority date | — |
| Expiry date | Sep 17, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C17/3481
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An electric toothbrush having a handle with a cavity therein, a motor mounted in the cavity of the handle and having a rotatable shaft, a brush head, and a shaft arranged to connect the brush head to the handle. An eccentric weight is mounted to the motor shaft so as to rotate eccentrically when the motor shaft rotates so that the brush handle vibrates. A further weight is mounted to the shaft so as to be axially movable by a manipulator for adjusting vibration of the brush head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.