Five-in-one polishing head
US11284695B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2019 |
| Grant date | Mar 29, 2022 |
| Priority date | — |
| Expiry date | Feb 22, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA45D29/05
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A five-in-one polishing head includes a blade portion and a handle portion. The blade portion is shaped like a cone having a concave or planar top end. Angle teeth, thin teeth, medium-thin teeth, and thick teeth are sequentially distributed in a conical polishing head according to the tooth density. The angle teeth are located at the top of the conical polishing head in a circle. The thick teeth are located at the end of the blade portion. The center of the end of the blade portion is axially welded and fixed to one end of the handle portion. The conical polishing head is provided with regularly distributed straight lines or oblique lines on a surface from the angle teeth to the thick teeth. The shape of a right-handed groove on the surface is inverted trapezoidal, and the shape of a left-handed groove is triangular.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.