Razor Blade Technology
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United States of America Patent
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N/A
Issued Date -
Jan 2, 2014
app pub date -
Dec 7, 2011
filing date -
Jan 6, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An inter-blade guard of a suitably ductile material for a razor cartridge is provided with an elongated weakened region. The weakened region is provided after the inter-blade guard is attached to a surface of a razor blade. The weakened region is provided by the application of laser energy that forms a groove along a side of the inter-blade guard. The root region of the groove undergoes intergranular carbide precipitation to locally embrittle the intergranular boundary regions in the groove root region of the otherwise ductile material.
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