Toothbrush
US6341400B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 2000 |
| Grant date | Jan 29, 2002 |
| Priority date | — |
| Expiry date | May 19, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C17/221
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ion toothbrush which can be tested on the supply voltage by turning on a switch, and concerning which assembling steps are simplified. This ion toothbrush comprises: a head (50) with brush bristles (51) implanted therein; a handle (10); and a battery (14) received in the handle (10). One electrode of the battery (14) is conductively connected with the external surface of the handle (10), and the other electrode is conductively connected with the vicinity of the implanted area of the brush bristles (51) at the head (50). This ion toothbrush further comprises: an LED (18) with its one terminal (18B) connected to one electrode of the battery (14), and with the other terminal (18A) connected to the other electrode of the battery; a spindle capable-of conductively connecting the other electrode of the battery. (14) with the vicinity of the implanted area and also capable of conductively connecting with the terminal (18A); and a switch (22) for opening or closing an electric circuit containing the LED (18), the spindle (26), and the battery (14).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.