Blade set and hair cutting appliance
US11267148B2 · kind B2 · utility
1Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2019 |
| Grant date | Mar 8, 2022 |
| Priority date | — |
| Expiry date | Mar 4, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB26B19/205
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A blade set for a hair cutting appliance includes a stationary blade and a cutter blade. The stationary blade has a blade base and a plurality of teeth extending from the blade base in a longitudinal direction. The teeth are arranged in a series alternating with tooth gaps therebetween, where the tooth gaps define hair entry slots. The teeth have a first side arranged to cooperate with the cutter blade to cut hair and a second side arranged as a skin-facing side. The teeth have processing edges at the first side at their longitudinal extension, where the processing edges have smoothened edge transitions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.