Tooth brusher
US7008225B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2001 |
| Grant date | Mar 7, 2006 |
| Priority date | — |
| Expiry date | Dec 20, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C17/38
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A safe brushing is realized without sticking the gum if the bristle tips are once inserted in a pocket of a tooth by using a system having a brush of which the bristle tips automatically vibrate in a direction at right angles with the direction of length of the bristles. A brush lever 5 having a brush 4 is swingingly supported in the nozzle 1, a flow passage 3 leading to a blow-out port 1a at an end of a nozzle 1 is partly bent, and a resilient member 7 is provided at the bent portion to urge the brush lever 5 in a direction opposite to the direction of flow of water, so that the brush lever 5 oscillates reciprocally due to the resilient force produced by the resilient member 7 and the pressure of water flow, causing the bristle tips of the brush 4 to oscillate in a direction at right angles with the direction of length of the bristles outside the nozzle 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.