Tire having sidewall extensions at opposite ends of each tread element

  • US 6,533,007 B1
  • Filed: 03/02/2000
  • Issued: 03/18/2003
  • Est. Priority Date: 03/02/2000
  • Status: Expired due to Fees
First Claim
Patent Images

1. A tire having tread elements that continuously extend from one sidewall to the other and sidewall extensions being disposed at opposite ends of each of said tread elements, said tread elements including a primary sidewall extension at one end and a secondary sidewall extension at the other end such that the primary sidewall extension has first steps therein to provide first support surfaces that face away from the tire rotational axis and are spaced a first radial distance from the tire rotational axis, and second steps therein to provide second support surfaces that face away from the tire rotational axis and are spaced a second radial distance from the tire rotational axis that is less than said first radial distance, said sidewall secondary extensions being smaller than said sidewall primary extensions and having at least one step therein to provide at least one secondary extension support surface that faces away from said rotational axis, said tread elements having tread support surfaces facing away from said rotational axis and spaced a third radial distance from the tire rotational axis that is greater than either of said first and second radial distances.

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