Attachment portion for an electric toothbrush replacement head
US11583061B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 18, 2020 |
| Grant date | Feb 21, 2023 |
| Priority date | — |
| Expiry date | May 14, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C17/222
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A replacement toothbrush head includes a tubular sleeve having a brush at one end and a drive shaft receptacle at the opposite end. The receptacle extends into the sleeve from a mouth at a tube end to a shoulder spaced from the mouth within the tube. A coupling member is inserted into the receptacle, and a spring clip is positioned between the receptacle and the coupling member, the spring clip having a base positioned between the shoulder and the distal end of the coupling member and a pair of spring arms overlying the sidewall of the coupling member. At least one of the spring arms engages a flexible region of the coupling member such that the flexible region flexes to engage a drive shaft inserted into the coupling member and retain the replacement head on the drive shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.