The Goodyear & Tire Rubber Company

Samuel Eubanks Reckley

Joseph Henry Laco

Ronald Thomas Harris

Terrence Lee Parsons

Paul Keyser Blackiston

Patrick Joseph King

Mark Andrew Murphy

Max Harold Dixon

William E Glover

Keith Eric Grabo

Robert L Crump

Edward L Montgomery

Joseph William Metz

Lawrence B Hurst

William John Dormer

Lloyd Glenn Whiteman

A multiple insert tire mold ( ) has inserts ( ) with radially extending ribs ( ) for sliding engagement in a slot ( ) in the outer ring back ( ) of the mold and abutting surfaces ( ) for venting exhaust gases from the mold ( ).

Multiple insert tire mold and assembly method

Tire tread

An improved tire tread having a net-to-gross ratio greater than 50% and a plurality of grooves defined by a base spaced between road contacting ribs is described herein. The improved tread is characterized by at least one circumferentially extending radially deep groove having a circumferentially continuous projection in the base of the groove. The projection has height measured from the base of the groove radially outward of less than one-sixth of the depth of the groove. The projection has a thickness of greater than one-half the height of the projection. The projection is axially spaced from the adjacent road contacting ribs. The projection is connected to the adjacent ribs by a plurality of braces. The braces are of substantially the same height as the projection. Each brace is spaced circumferentially from adjacent braces and connected to both sidewalls of the circumferentially extending adjacent ribs.

Tread with improved groove design

Growing community of inventors

LaVale, MD, United States of America

Samuel Eubanks Reckley