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. 16, 1995
Filed:
Oct. 21, 1993
Darrell E Covert, Uniontown, OH (US);
Paul B Maxwell, Akron, OH (US);
Frederick W Miller, Akron, OH (US);
Richard L Galante, Akron, OH (US);
Michael A Kolowski, Mogadore, OH (US);
William M Hopkins, Hudson, OH (US);
Anthony J Scarpitti, Uniontown, OH (US);
The Goodyear Tire & Rubber Company, Akron, OH (US);
Abstract
A radial ply pneumatic tire (30) has as asymmetric tread portion (41) having circumferential grooves (50, 51, 52, 53) and diagonal grooves (55, 56) therein. The tread is divided into three axial regions (A, B, C) of equal width, and in each region the net-to-gross ratio is different. The rate of treadwear in the axially outermost regions (A, B) of the tread are substantially equalized by features including varying groove depths and widths, groove paths, and chamfering the edges of block elements (57, 58, 62, 63) of the tread.