Razor head with riblets
US4914817A · kind A · utility
38Cited by
20References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1988 |
| Grant date | Apr 10, 1990 |
| Priority date | — |
| Expiry date | Jul 1, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB26B21/4006
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A safety razor head comprising a guard surface and a cap surface is provided with a plurality of parallel riblets disposed on the head for contact with the surface being shaved, during use of the razor. The riblets may be disposed on the cap surface or on a substantially thin film material extending from the guard surface to the cap surface and are effective to improve shaving comfort.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.