Pneumatic tire having inclined main grooves

Details Pneumatic tire having inclined main grooves Pneumatic tire having inclined main grooves

2006-11-28

2006-11-28

Maki, Steven D. (Department: 1733)

Resilient tires and wheels

Tires, resilient

Anti-skid devices

Reexamination Certificate

active

07140411

ABSTRACT:
A pneumatic tire, wherein at least one peripheral main groove (2) is provided in a tread center area and inclined main grooves (3) inclined diagonal-outward in a direction reverse to the specified rotating direction of the tire and reverse inclined main grooves (4) inclined diagonal-outward in a direction reverse to the inclination direction of the inclined main grooves are disposed on both sides of the peripheral main groove alternately in the circumferential direction of the tire, the inner ends of the inclined main grooves (3) are connected midway to the reverse inclined main grooves (4) in the area of 10 to 20% of a contact width from a tire center and the outer ends thereof are extended to shoulders, and the inner ends of the reverse inclined main grooves (4) are connected to the peripheral main groove (2) and the outer ends thereof are connected midway to the inclined main grooves (3).

REFERENCES:
patent: 4574856 (1986-03-01), Graas
patent: 4641696 (1987-02-01), Semin et al.
patent: 4986324 (1991-01-01), Suzuki et al.
patent: D395625 (1998-06-01), Mori
patent: 5954107 (1999-09-01), Kuze et al.
patent: 6837285 (2005-01-01), Eromaki
patent: 755809 (1997-01-01), None
patent: 01-178006 (1989-07-01), None
patent: 06-191232 (1994-07-01), None
patent: 10-264612 (1998-10-01), None
patent: 2000-255217 (2000-09-01), None
patent: 2001-322406 (2001-11-01), None
Machine translation for Japan 2001-322406.
Machine translation for Japan 2000-255217.
International Search Report for PCT/JP02/12446 mailed on Mar. 11, 2003.

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