Cutting members for shaving razors
AssigneeThe Gillette Company
InventorsWilliam Masek, Robert Smith, John L. Maziarz, Joseph A. DePuydt, Ming Laura Xu, Craig Stephen Vickery
Life of this patent
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Abstract
Cutting members for razors are provided that have been subjected to a localized heat-treating process, e.g., application of laser energy. In some cases, the cutting members include a bent portion, and the localized heat-treating process is used to enhance ductility and thereby facilitate formation of the bent portion.
Claims10
A razor blade comprising an edge portion and a further portion, the edge portion having a cutting edge region terminated at a free end thereof and an opposing non-cutting edge region, the edge portion being bent relative to the further portion in a bending zone spaced from the cutting edge region and adjacent to the non-cutting edge region, characterized in that at least the edge portion has a material structure hardened by a heat treatment and in that the bending zone has a locally re-heated structure, wherein a thickness of the bending zone is less than that of the further portion and the non-cutting edge region.
A razor blade comprising an edge portion and a further portion, the edge portion having a cutting edge region terminated at a free end thereof and an opposing non-cutting edge region, the edge portion being bent relative to the further portion in a bending zone spaced from the cutting edge region and adjacent to the non-cutting edge region, characterized in that at least the edge portion has a material structure hardened by a heat treatment and in that the bending zone has a locally re-heated structure, wherein a thickness of the bending zone is less than that of the non-cutting edge region.
Dependencies are inferred from the claim text.