Radial passenger tire with improved tread contour

Details Radial passenger tire with improved tread contour Radial passenger tire with improved tread contour

2007-10-02

2007-10-02

Maki, Steven D. (Department: 1733)

Resilient tires and wheels

Tires, resilient

Anti-skid devices

C152S209180, C152S454000

Reexamination Certificate

active

10456718

ABSTRACT:
A pneumatic radial ply passenger tire (10) having a tread (20), a casing with two sidewalls (14, 16), one or more radial plies (18) extending from and wrapped about two annular beads (13) and a belt reinforcement structure (15) located radially between the tread and the plies. The tread has a first contour-defining curve extending outwards from the equatorial plane of the tire towards the sidewalls, an adjacent second contour-defining curve disposed between the first contour defining curve and the sidewalls and an adjacent third contour defining curve extending outwards from the second contour defining curve and the sidewalls. The first, second and third contour-defining curves have first (R1) and second (R2) and third (R3) radii chosen such that R2>R1>R3.

REFERENCES:
patent: 5247979 (1993-09-01), Asano
patent: 5360044 (1994-11-01), Saito et al.
patent: 5526860 (1996-06-01), Minami
patent: 5616195 (1997-04-01), Marquet et al.
patent: 5803999 (1998-09-01), Shibata
patent: 2002/0124928 (2002-09-01), Carra et al.
patent: 0269301 (1988-06-01), None
patent: 0755808 (1997-01-01), None
patent: 1086832 (2001-03-01), None
patent: 08-091023 (1996-04-01), None
patent: 10100618 (1998-07-01), None
patent: WO99/36278 (1999-07-01), None
Machine translation for Japan 10-100618 (obtained May 16, 2007).

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