Personal care device as well as a cutting unit for such a personal care device
US9956697B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 16, 2014 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | Oct 25, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB26B19/143
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A personal care device is provided with a cutting unit comprising an external cutting member and an internal cutting member. A virtual skin plane is located on a side of the external cutting member facing away from the internal cutting member. The internal cutting member comprises cutting elements each having a first cutting edge. The external cutting member comprises hair-entry apertures each having a second cutting edge. In a starting position of cutting a hair situated in a cutting position in the hair-entry aperture and extending perpendicularly to the virtual skin plane, the first cutting edge is in contact with the hair in a first contact position, and the second cutting edge is in contact with the hair in a second contact position, wherein the first contact position is closer to the virtual skin plane than the second contact position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.