Cutting head for an electric razor
US9044868B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2011 |
| Grant date | Jun 2, 2015 |
| Priority date | — |
| Expiry date | Feb 7, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB26B19/042
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A cutting head for an electric razor is provided. The cutting head has at least one upper blade and a lower blade associated with the upper blade, which upper and lower blades are movably supported relative to one another and can be driven accordingly by a drive device. The upper blade has a contact surface for the skin to be shaved, which contact surface is formed by a plurality of webs that are each bounded by slots. The longitudinal extent of the webs runs substantially perpendicular to a threading edge bounding the contact surface. The contact surface is designed to be concave and rises towards the threading edge, where the threading edge has an outer radius and this outer radius encloses an angle of less than 90°.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.