Electric toothbrushes having movable, intermittently movable, and fixed bristles
US7322066B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 17, 2004 |
| Grant date | Jan 29, 2008 |
| Priority date | — |
| Expiry date | Dec 6, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C17/3445
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An electric toothbrush comprising a handle, a head, and a neck extending between the handle and the head. The electric toothbrush has a longitudinal axis. The handle has a hollow interior region, and has a motor disposed within the hollow region. The movable bristle holder is disposed on the head, and has a plurality of movable bristles disposed thereon. The drive shaft operatively connects the motor to the movable bristle holder to move the movable bristle holder and the bristles disposed on the movable bristle holder. The head has bristles disposed thereon. One or more bristles are disposed on a static portion of the head of the toothbrush. Movement of the drive shaft and/or the movable bristle holder results in movement of at least a portion of the one or more bristles disposed on the static portion of the toothbrush head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.