The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 06, 2001
Filed:
Jun. 04, 1999
Hankook Tire, Uniontown, OH (US);
Abstract
A run flat tire has a plurality of reinforcing wedges located in the tire sidewall with the hardness of each wedge generally diminishing in the radially inward direction of the sidewall. Since the bead filler is harder than the radial innermost wedge, the hardness at generally the top of the bead filler increases in the radial inward direction. The reinforcing wedges partially overlap each other and can generally have any configuration. The changing of hardness of the radial wedges results in a wedge sequence and thus a more even strain distribution throughout the tire sidewall. This strain distribution extends the run flat life of the tire and also provides a good balance with other tire performance parameters.