Patent ID: 6679306
Filing Date: 2004-01-20
Classification: B60C,Y10T

Abstract:
A run flat tire comprising, a tire casing having side walls that include beads embedded in side wall ends for mounting in a tire rim, and with upper portions for said side walls spanned by a tread section; an inner support formed to fit within the tire casing having side walls whose ends are arranged for mounting in said tire rim, alongside and against said tire casing bead ends, which said inner support is formed from an elastomeric material and has an interior continuous arch shaped cavity, where the arc of said interior arch shaped cavity is centered under a tire casing outer portion, under said tire casing tread, and the inner support walls and inner support top portion have a same uniform thickness and said inner support includes a plurality of holes formed through said inner support side walls at random intervals around both said inner support side walls, below an angle of thirty degrees upwardly on each said side wall from a horizontal axis across said inner support that intersects mounting points of said inner support side walls to sides of said tire rim, and as taken from a point of intersection of a longitudinal line bisecting said inner support and said horizontal axis; and means for passing air under pressure into said tire casing.