Razor blade technology
US5295305A · kind A · utility
76Cited by
27References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 1993 |
| Grant date | Mar 22, 1994 |
| Priority date | — |
| Expiry date | Jan 25, 2013 |
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, an interlayer of material selected from the group consisting of silicon, silicon carbide, vanadium, tantalum, nickel, niobium, and niobium-molybdenum alloy and alloys of such materials on the tip and flanks of the wedge-shaped edge, the thickness of the interlayer preferably being in the range of about 50-500 angstroms, and a layer of diamond or diamond-like carbon material on the interlayer that preferably has a thickness of about two thousand angstroms and that defines a tip radius of less than about 1000 angstroms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.