Razor technology
US5232568A · kind A · utility
79Cited by
26References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1991 |
| Grant date | Aug 3, 1993 |
| Priority date | — |
| Expiry date | Jun 24, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB26B21/60
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A razor blade includes a substrate with a wedge-shaped edge, a layer of molybdenum on the tip and flanks of the wedge-shaped edge, the thickness of the molybdenum layer preferably being in the range of about 50-500 angstroms, and a layer of diamond or diamond-like material on the molybdenum layer that preferably has a thickness of about 200-2,000 angstroms and that defines a tip radius of less than about 500 angstroms, an aspect ratio in the range of 1:13-3:1, a hardness of at least thirteen gigapascals and an L5 wet wool felt cutter force of less than 0.8 kilogram.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.