Pneumatic tire with tread having narrow groove

Details Pneumatic tire with tread having narrow groove Pneumatic tire with tread having narrow groove

2011-03-22

2011-03-22

Maki, Steven D (Department: 1747)

Resilient tires and wheels

Tires, resilient

Anti-skid devices

C152S209270

Reexamination Certificate

active

07909075

ABSTRACT:
A pneumatic tire comprising a shoulder land portion and a narrow groove, the narrow groove comprises a first enlarged portion enlarging a groove width at a groove bottom only on the sacrificed portion side, a second enlarged portion being formed adjacently on the tread face side of the first enlarged portion and enlarging a groove width only on the sacrificed portion side, a projection portion being formed between the first enlarged portion and the second enlarged portion while projecting toward the main body land portion from an inner wall on the sacrificed land portion side, and a flat face portion having a depth, from the tread face, of 30% or more of a groove depth of the narrow groove, and having an inner wall on the sacrificed land portion side and an inner wall on the main body land portion side.

REFERENCES:
patent: 03-007604 (1991-01-01), None
patent: 06-191230 (1994-07-01), None
patent: 07-076204 (1995-03-01), None
patent: 11-301214 (1999-11-01), None
patent: 2002-019420 (2002-01-01), None
patent: 2002-512575 (2002-04-01), None
patent: WO 98/26945 (1998-06-01), None
Machine translation for Japan 06-191230 (no date).
Machine translation for Japan 11-301214 (no date).
Machine translation for Japan 2002-019420 (no date).

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