The Goodyear & Tire Rubber Company

John Alan Howald

Steven Craig Rohweder

Karl Eric Sundkvist

Marc Christopher Nowacki

Jerold Robert Buenger

Gary Bruce Garber

The invention relates to a rubber tire having a rubber tread intended to be ground-contacting which is relative electrically insulating and which has at least one thin, narrow, carbon black reinforced rubber strip integral the outer surface, or face, of said tread, each strip extending laterally across the tread to each of the tire's carbon black reinforced sidewalls. In one aspect, said outer rubber strip, extends laterally across the outer surface of the tread which is designed to be ground contacting and connects with carbon black reinforced tire sidewalls to provide a path of reduced electrical resistance from the outer surface of the tire tread to the bead portion of the tire carcass and, thereby, such a reduced electrical resistance path from a vehicle to the road surface. In another aspect, the said rubber tread intended to be ground-contacting, is primarily reinforced with silica.

Tire with outer carbon black reinforced rubber strip for static reduction

A method and apparatus for modifying residual cornering force (RCF) or residual self-aligning torque (RSAT) of a tire 12. The tire mold 30 is modified by removing or adding removable chamfer mold pieces or material 50,150 to the interior surface of the tire mold 30. The removable chamfer mold pieces chamfer portions of the tire tread 10 at key locations, addition or deletion of such chamfer portions 50,150 at selected locations can modify the tire's RCF and/or RSAT parameters.

Tire tread element mold chamfer to modify RCF and/or RSAT using the

Tire tread

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Uniontown, OH, United States of America

John Alan Howald