Replaceable head part for an electric toothbrush
US9119695B2 · kind B2 · utility
3Cited by
2References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 22, 2011 |
| Grant date | Sep 1, 2015 |
| Priority date | — |
| Expiry date | Jun 12, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C17/222
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A replaceable head part for an electric powered toothbrush comprising an elongate sleeve including a flexible portion, and containing a longitudinal drive shaft rotatable in oscillatory rotary motion. The drive shaft has a spherical bearing part received in a cavity in the sleeve. The head part incorporates a transmission system to convert the rotation of the head drive shaft into rotation of the bristle carrier comprising an eccentric pin extending from the head drive shaft to move the bristle carrier in oscillatory rotary motion, and having a spherical pin bearing part received in a receiving cavity in the bristle carrier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.