The Goodyear & Tire Rubber Company

Paul Keyser Blackiston

Joseph Henry Laco

Ronald Thomas Harris

Terrence Lee Parsons

Samuel Eubanks Reckley

Patrick Joseph King

Mark Andrew Murphy

Stephanie Carol Brown

James McSherry Williams

Daniel E Schuster

Jeffrey Leon Sevart

Pedro Yap

Larry Ashley Gordon

Ronald Thomas Harris, Deceased

A pneumatic radial ply truck tire for use on medium truck trailers includes a tread, a casing with two sidewalls, one or more radial plies extending from, and wrapped about, two annular beads, and a belt reinforcement structure located radially between the tread and the one or more radial plies. The tread includes a plurality of circumferentially extending tread grooves, a pair of circumferentially extending shoulder ribs, a pair of radially recessed ribs being radially recessed and non-road contacting under static load disposed at a lateral edge of the shoulder ribs, and a pair of circumferentially extending decoupling grooves. Each decoupling groove defines a transition between a corresponding shoulder rib and a corresponding recessed rib. A lateral edge of one of the shoulder ribs has a first radius of curvature forming a transition from a radially outer surface of the shoulder rib to a first side surface of the corresponding decoupling groove. A base surface of the decoupling groove has a second radius of curvature forming a transition from the first side surface to a second side surface of the decoupling groove. A radially outer surface of the corresponding recessed rib has a third radius of curvature forming a continuous transition from the second side surface to a third outer side surface of the shoulder portion of the tread.

Decoupling groove for pneumatic tire tread

Tire

Tire tread

Growing community of inventors

Ridgeley, WV, United States of America

Paul Keyser Blackiston