Claims
- 1. A razor blade comprising a cutting surface defined by opposed surfaces terminating at an edge, each opposed surface carrying a cutting edge facet portion and a convex, rough honed facet portion in which the included angle of the rough honed facet portion progressively decreases in the direction from the edge, said rough honed facet portion extending in the direction from the edge for a distance between about 0.010 to about 0.025 inches with the cutting edge facet portion extending in the direction from the edge to the rough honed facet portion for a distance between about 0.0006 to about 0.008 inches.
- 2. A razor blade of claim 1 where the included angle of the rough honed facet portion progressively decreases in a substantially continuous fashion.
- 3. A razor blade of claim 2 where the cutting edge facet portion is convex and the included angle of the cutting edge facet portion progressively decreases in the direction from the edge in a substantially continuous fashion.
- 4. A razor blade of claim 1 where the cutting edge facet portion is convex and the included angle of the cutting edge facet portion progressively decreases in the direction from the edge.
- 5. A razor blade stock comprising a thin metal strip having a cutting surface defined by opposed surfaces terminating at an edge, each opposed surface carrying a convex rough honed facet extending in the direction from the edge for a distance between about 0.010 to about 0.025 inches and where the included angle of each surface progressively decreases in the direction from the edge.
- 6. A razor blade stock of claim 5 where the included angle of each surface progressively decreases in a substantially continuous fashion.
Parent Case Info
This application is a division of application Ser. No. 062,911, filed June 17, 1987 now U.S. Pat. No. 4,807,401.
US Referenced Citations (8)
Foreign Referenced Citations (2)
Number |
Date |
Country |
2428889 |
Jan 1975 |
DEX |
110301 |
Oct 1960 |
PKX |
Divisions (1)
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Number |
Date |
Country |
Parent |
62911 |
Jun 1987 |
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