John A Shaffer

US Patent:

7484542, Feb 3, 2009

Filed:

Sep 30, 2005

Appl. No.:

11/240904

Inventors:

Karl Eric Sundkvist - Akron OH, US
Eddy Dong-Rong Pan - Stow OH, US
Tooney Raymond Jones - Norton OH, US
David Allen Griffin - Akron OH, US
John Russell Shaffer - Massillon OH, US
Charles Kenneth Schmalix - Canal Fulton OH, US
Keith Eric Grabo - Brecksville OH, US

Assignee:

The Goodyear Tire & Rubber Company - Akron OH

International Classification:

B60C 11/12

US Classification:

15220918, 15220922, 152DIG 3

Abstract:

A tire tread has at least three rows of tread elements, each tread element in the at rows has at least one sipe and at least one sipe in each tread element row has a tie bar therein. Each tie bar in the sipes has a volume, and the volume of the sipe tie bar in each tread element in each row is not more than 10% different than the volume of the sipe tie bar in each tread element in any other tread row. Several of the tread rows have transverse grooves having groove tie bars therein.