Invention Grant
- Patent Title: Pneumatic tire
-
Application No.: US16768517Application Date: 2017-11-30
-
Publication No.: US11541696B2Publication Date: 2023-01-03
- Inventor: Bradford M. Hicks , Paul B. Winston , Mary Dungan Thomas , Donald Earl Leonard , Vittoria Madonna Blasucci
- Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
- Applicant Address: FR Clermont-Ferrand
- Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
- Current Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
- Current Assignee Address: FR Clermont-Ferrand
- Agency: Hahn Loeser & Parks LLP
- Agent Bret A. Hrivnak
- International Application: PCT/US2017/064011 WO 20171130
- International Announcement: WO2019/108207 WO 20190606
- Main IPC: B60C5/14
- IPC: B60C5/14 ; B60C15/06 ; B60C15/00

Abstract:
A pneumatic tire having a pair of annular bead areas (12), a pair of sidewalls, and a crown portion wherein a carcass ply (22) wraps around a radial inner side (RSj,2o) of each bead ring (20), for each bead area (12) a first layer of rubber material (30) is arranged radially inward from both the bead ring radial inner side (RSi,2o) and the carcass ply (22) and a second layer of rubber material (40) is arranged radially inward from the first layer of rubber material (30), each of the first layer of rubber material (30) and the second layer of rubber material (40) extending substantially across a full width (W20) of the corresponding bead ring (20), each of the first and second layer of rubber material (30, 40) having a modulus of elongation, where the modulus of elongation of the second layer of rubber material (40) is equal to or greater than substantially 125% of the modulus of elongation of the first layer of rubber material (30).
Public/Granted literature
- US1290075A Rheostat. Public/Granted day:1919-01-07
Information query