Electric toothbrush
US5020179A · kind A · utility
65Cited by
9References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 5, 1990 |
| Grant date | Jun 4, 1991 |
| Priority date | — |
| Expiry date | Jan 5, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C17/3436
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An electric toothbrush comprises a manually guided handle and a brush member having a brush head with a plurality of separately rotating bristle holders which are connected in the brush head to gearing driving them. The bristle holders are mounted in an insert which is insertable into the brush head in a releasable manner so as to be easily exchangeable by the user. Each of the bristle holders has a coupling element in the form of a cam which is insertable, by way of a plug-in connection, in a respective groove in a connecting rod which is connected to a drive means in the handle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.