Bent razor blades and manufacturing of such razor blades
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United States of America Patent
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Jan 16, 2018
Issued Date -
N/A
app pub date -
Mar 8, 2013
filing date -
Jun 26, 2003
priority date (Note) -
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Abstract
A razor blade includes an edge portion with a cutting edge at a first end of the razor blade; a further portion extending from the edge portion to a second end of the razor blade; and a bridge portion attached to a first portion of the further portion, leaving a second portion of the further portion exposed from the first end to the second end. The edge portion is bent relative to the further portion through an angle of at least 40° in a bending zone spaced from the cutting edge. Further, at least the edge portion has a material structure hardened by a first heat treatment, and the bending zone has a locally re-heated structure.
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