Brushhead for a power toothbrush with a two position coupling assembly
US10603146B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 2, 2017 |
| Grant date | Mar 31, 2020 |
| Priority date | — |
| Expiry date | Apr 24, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C17/22
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The replaceable brushhead, used for a power toothbrush, includes a neck portion (22) having a hollow part located at a proximal end thereof. The brushhead assembly includes a bristle portion (18) at a distal end of the neck portion. A connecting assembly (20) is positioned within the hollow portion of the neck, the connecting assembly having two distinct, mechanically stable, positions. In the first position, the connecting assembly has a first physical arrangement in which the brushhead assembly is conveniently removable or insertable onto an output shaft (16) from a handle portion of the power toothbrush. In the second position, the connecting assembly has a second physical arrangement, in which a portion of the connecting assembly makes physical contact with the output shaft such that the force or torque produced by the output shaft in operation is transferred to the brushhead assembly for movement thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.