Abstract: The tread of a pneumatic tire has a plurality of tread elements separated by at least one groove, the tread elements having a depth as determined from an initial tread surface and the base of the at least one groove. The tread has at least one chamfer. The chamfer is divided into at least two inclined adjacent portions with the inclined adjacent portions being inclined at different inclination angles relative to the tread surface. The difference in inclination angles of the different portions is at least 10°. The inclined adjacent portions are both connected to an inclined common area, the inclined common area being adjacent to the initial tread surface.
Type:
Grant
Filed:
May 14, 2007
Date of Patent:
January 25, 2011
Assignee:
The Goodyear Tire & Rubber Company
Inventors:
Eric Matthew Luecke, Delwyn Lovell Harvey
Abstract: A steel cord, formed of a plurality of steel filaments, has a construction of N×(7×2) wherein N=1 to 7 and within the circumference of the cross-sectional area, not more than 60% of the cord area is comprised of the steel filaments. The steel cord has an elongation at break of at least 3%.
Type:
Grant
Filed:
December 22, 2005
Date of Patent:
August 17, 2010
Assignee:
The Goodyear Tire & Rubber Company
Inventors:
Italo Marziale Sinopoli, Barry Allen Matrana, Charles Elmer Hamiel, James Christopher Kish