Invention Application
- Patent Title: NON-PNEUMATIC TIRE HAVING MULTILAYER SPOKES
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Application No.: US17770864Application Date: 2020-10-19
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Publication No.: US20220371366A1Publication Date: 2022-11-24
- Inventor: Ross W. Widenor
- Applicant: Bridgestone Americas Tire Operations, LLC
- Applicant Address: US TN Nashville
- Assignee: Bridgestone Americas Tire Operations, LLC
- Current Assignee: Bridgestone Americas Tire Operations, LLC
- Current Assignee Address: US TN Nashville
- International Application: PCT/US2020/056280 WO 20201019
- Main IPC: B60C7/14
- IPC: B60C7/14 ; B60C7/18

Abstract:
A non-pneumatic tire includes an annular inner ring, an annular outer ring, and a support structure extending from the annular inner ring to the annular outer ring. The support structure includes a multilayer structure. The multilayer structure includes a skim layer, a plurality of cords embedded in the skim layer, and an outer protective layer covering at least a portion of a surface of the skim layer. The outer protective layer has greater resistance to ozone exposure than the skim layer. Methods of making a non-pneumatic tire include forming a multilayer structure by applying an outer protective layer to at least a portion of a surface of a skim layer having a plurality of cords embedded in the skim layer.
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