Shaving unit and shaving appliance
US11285627B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2019 |
| Grant date | Mar 29, 2022 |
| Priority date | — |
| Expiry date | Apr 24, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB26B19/143
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A shaving appliance and a shaving unit are described. The shaving unit has a rotary cutter having a plurality of cutter blades that are provided with a cutting edge. The shaving track includes hair-entry slots that, seen in the direction of movement, have a frontal edge and a rear edge. A slot angle (α) defined as an angle of inclination between the frontal edges (48, 148) of the hair-entry slots. A shearing angle (δ), defined as a difference between the slot angle (α) and an angle of inclination (β) of cutting edges of cutter blades with respect to the radial direction. The shearing angle (δ) is defined at an actual point where the frontal edges and the cutting edges cooperate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.