The Goodyear & Tire Rubber Company

Jeffrey Leon Sevart

Kevin Christopher Legge

Anthony John Fierro

David Allen Griffin

Daniel Thomas Murphy

Kurt Jon Bergstrom

Max Harold Dixon

Robert John Hermann

John Stephen Guilford

Pedro Yap

Shannon Joseph Hughes

Delwyn Lovell Harvey

Joseph Thomas Janesh

Joel Joseph Lazeration

Jay Kevin Lawrence

James Earl Koerner

Matthew Robert Eckels

Jonathan James Shondel

Karl Eric Sundkvist

Anthony J Scarpitti

Eric John Marazzi

Richard Winfield Harden, Jr

David Ray Hubbell

Marc Christopher Nowacki

John Michael Maloney

Ashley Amanda Jones

Ahmad Shafiq Bani Hani

Deborah Lynn Young

Paul Keyser Blackiston

David C Wagner

Piotr Janusz Wesolowski

Larry Ashley Gordon

John Robert Kullman

Kevin Gene Moore

Paul Keyer Blackiston, Iii

Tire

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

The present invention relates to a method for predicting the propensity for a RMT steer tire to have irregular tire tread wear. The method comprises the steps of: providing a RMT steer tire to be tested; placing measurement points upon a ground engaging surface of selected circumferential tread ribs of the tread of the RMT tire; progressively rolling the RMT steer tire across a first planar side of a transparent plate whereby the progressive movement of a footprint image of the RMT steer tire is imposed upon the first planar side of the transparent plate; recording the progressive movement of the marked measurement points in the footprint image of the RMT steer tire imposed upon the first planar side of the transparent plate; determining the amount of lateral movement of each of the marked measurement points in the footprint image; and if any measurement points exhibit lateral movement beyond 0.060 inches, predicting that the RMT steer tire will have irregular tire tread wear.

Prediction of internal rib irregular wear via rib edge lateral slip

Tire tread

Growing community of inventors

Akron, OH, United States of America

Jeffrey Leon Sevart