Winter tyre tread band with three-dimensional sipes
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United States of America Patent
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Jun 12, 2018
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app pub date -
Oct 7, 2013
filing date -
Oct 5, 2012
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Abstract
A winter tire tread band having: a number of longitudinal and transverse grooves defining a number of blocks, each projecting radially upwards from a base surface of the tread band; and a number of sipes formed in at least some of the blocks, and each of which extends radially inwards of a corresponding block, from a top surface forming the rolling surface of the tread band; each sipe has a wave pattern when the corresponding block is viewed in any one of three planes perpendicular to one another and defined by a longitudinal axis, a transverse axis, and a radial axis.
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