Pneumatic tire with tread including blocks having...

Details Pneumatic tire with tread including blocks having... Pneumatic tire with tread including blocks having...

2008-07-29

2008-07-29

Maki, Steven D (Department: 1791)

Resilient tires and wheels

Tires, resilient

Anti-skid devices

C152S209180, C152S902000

Reexamination Certificate

active

11251840

ABSTRACT:
In a pneumatic tire, a block unit includes a center block and side blocks separated by a communication groove. Aspect ratios of the center block and the side blocks are approximately the same. The center block and the side blocks are arranged such that a longitudinal direction of a rectangle relating to the aspect ratio of the center block and longitudinal directions of rectangles relating to the aspect ratios of the side blocks are approximately orthogonal to each other. Size ratios of a short side of the rectangle relating to the aspect ratio of the center block and the long sides of the rectangles relating to the aspect ratios of the side blocks are in a range equal to or more than 0.90 to equal to or less than 1.10.

REFERENCES:
patent: D175214 (1955-07-01), French
patent: 6000451 (1999-12-01), Takada
patent: 6450221 (2002-09-01), Bonko
patent: 1034945 (2000-09-01), None
patent: 2002-002231 (2002-01-01), None

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