Toothbrush comprising a resilient flex region
US6675428B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 15, 2000 |
| Grant date | Jan 13, 2004 |
| Priority date | — |
| Expiry date | Feb 5, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/425
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A toothbrush comprising a handle and a head supported at one end of the handle. The head includes a portion extending from the handle and having bristles mounted thereon. The head also includes a series of bristle tuft carriers based from the handle extension portion. Each bristle tuft carrier retains at least one tuft of bristles. A region between the bristle tuft carriers and the handle extension portion includes an elastomeric material configured to provide resilient flexing of the bristle tuft carriers with respect to the handle extension during tooth brushing, so that the bristles and the bristle tuft carriers move relative to the bristles on the handle extension portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.