Automatic toothbrush
US5500970A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 1993 |
| Grant date | Mar 26, 1996 |
| Priority date | — |
| Expiry date | Apr 15, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA46B2200/1066
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An automatic toothbrush to optimally clean at least two sides of a tooth or a row of teeth comprising a cleaning head with a substantially U-shaped support to which are mounted clusters of bristles. The clusters of bristles are mounted on self-positioning pivoting levers of the U-shaped support in order to clean even little accessible tooth locations. Using at least one mechanical and/or electromagnetic drive means, control is made possible of a phase-shifted, impulsive motion of the support relative to the automatic toothbrush and of the pivoting levers with the cleaning bristles relative to the support to implement a cleaning or wiping action by the clusters of bristles from the gum to the tooth crown while, in the opposite direction, the motion takes place with at least reduced pressure applied to the teeth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.