RAZOR CARTRIDGE
    6.
    发明申请

    公开(公告)号:US20210323180A1

    公开(公告)日:2021-10-21

    申请号:US17231605

    申请日:2021-04-15

    Abstract: A razor cartridge is provided comprising: a housing and a blade assembly mounted to the housing. The blade assembly may comprise at least one razor blade defined by a substrate comprising a first portion and a second portion. The first portion may comprise first and second outer surfaces. The second portion may comprise first and second sections separated by a split line. The first section may comprise a first facet and an end facet. The second section may comprise an end facet. The end facets of the first and second sections may converge at a tip to define a cutting edge. A shoulder may be positioned between the first facet and the end facet of the first section and define a skin-contacting surface.

    RAZOR BLADES
    10.
    发明申请
    RAZOR BLADES 审中-公开

    公开(公告)号:US20170341250A1

    公开(公告)日:2017-11-30

    申请号:US15665639

    申请日:2017-08-01

    CPC classification number: B26B21/56 B26B21/58 B26B21/60

    Abstract: A razor blade having a substrate with a cutting edge being defined by a sharpened tip. The substrate has thicknesses of 1.60-1.75 micrometers and 9.25-10.00 micrometers measured at a distance of four and forty micrometers from the blade tip, respectively. A ratio of the thickness measured at four micrometers to the thickness measured at forty micrometers is between 0.165-0.185. The substrate thickness is about 2.70-3.00 micrometers at eight micrometers from the blade tip, about 4.44-5.00 micrometers at sixteen micrometers from the blade tip with a thickness ratio measured at four micrometers and eight micrometers between 0.56-0.62, and a thickness ratio measured at four micrometers and sixteen micrometers between 0.32-0.40. The blade edge shape is defined by equation w=adn where “a” is between 0.50-0.62 and “n” is between 0.76-0.80. An included angle of less than 7° is measured at a distance of forty micrometers or greater from the blade tip. A nitrided substrate may also be provided.

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