The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 20, 2003
Filed:
Nov. 01, 2000
Philippe Marie Manne, Ettelbruck, LU;
Laurent Colantonio, Bastogne, BE;
Johan Peter Dahlberg, Luxembourg, LU;
Frank Philpott, Waldbredimus, LU;
The Goodyear Tire & Rubber Company, Akron, OH (US);
Abstract
The present invention relates to a radial ply tire ( ) with a tread ( ) subdivided transversely into a central portion ( ) having central ribs ( ), shoulder portions ( ) having shoulder ribs ( ) and intermediate portions ( ) having intermediate ribs between the central portion and the shoulder portions. The tread has intermediate grooves ( ) between the central ribs and the intermediate ribs ( ) and shoulder decoupling grooves ( ) between the intermediate ribs and the shoulder ribs ( ). The shoulder decoupling grooves having a depth (D ) being less than the intermediate decoupling grooves whereby the footprint width of the tread surface can expand from first width (NLFPW) under normal load to a second width (HLFPW) under heavy load.