Locked bead pneumatic tire with wrap-around toeguard

Details Locked bead pneumatic tire with wrap-around toeguard Locked bead pneumatic tire with wrap-around toeguard

2005-01-27

2008-10-28

Johnstone, Adrienne C (Department: 1791)

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

C152S546000, C152S552000, C152S554000

Reexamination Certificate

active

07441577

ABSTRACT:
A pneumatic tire10has a carcass ply12or plies12, 14with a locked tie-in construction and a wrap-around toeguard18.Each wrap-around toeguard18is a non cord reinforced elastomeric unitary strip wound 360 degree in a singular annular bead. The wrap-around toeguard cord reinforced unitary strip18can be formed of a single elastomeric composition having a shore hardness D of greater than 40. Alternatively the wrap-around toeguard may additionally include an apex portion29and a chafer portion27along with the toeguard portion28, each portion27, 29being co-extruded or otherwise hot formed and shaped with the toeguard portion28to form the unitary strip18and can have distinct elastomeric composition relative to the toeguard portion28.

REFERENCES:
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patent: 6527025 (2003-03-01), Minami
patent: 6719030 (2004-04-01), Prakash et al.
patent: 2002/0162616 (2002-11-01), Bernard et al.

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