Patent ID: 7467652
Filing Date: 2008-12-23
Classification: B29D,B60C,Y10S

Abstract:
1. A tire comprising a tread, the tread having a plurality of ground engaging elastomeric elements, wherein at least one of the elements has a sipe, the sipe has a radial depth in a vertical direction of the sipe, a first sipe face, a second opposing sipe face, and a multiple dimension centerplane located equidistant from the sipe faces, the sipe further comprising: at least two radially adjacent rows of projections separated by a planar section, the planar section having a zigzag configuration of defined length and width, the projections of a first row of the at least two radially adjacent rows being elongated in the vertical direction of the sipe wherein each projection is located in a primary projection that extends in a direction opposite the depth direction of the projection and wherein at least three projections of the first row have different heights in the vertical direction of the sipe such that the heights of the at least three projections increases along a horizontal direction of the sipe.