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:
Feb. 27, 2001
Filed:
Feb. 03, 1999
Tetsuhiro Fukumoto, Kobe, JP;
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Abstract
A heavy duty radial tire includes a pair of shoulder portions tapered at an angle &agr; of from 40 to 50 degrees, a pair of zigzag main grooves extending circumferentially to form a pair of shoulder ribs, the shoulder ribs provided with lug grooves each having an axially inner end P,terminated in the rib and an axially outer end opened at the tread edge TE, the bottom Ys of the lug grooves extending from the radially outer surface to the axially outer surface of the shoulder rib while inclining at an angle &bgr;, the height H,of the tapered shoulder portion being in the range of from 50 to 67% of the depth Hg of the zigzag main grooves, the angle &agr; at the tread edge TE being larger than the angle &bgr; at the axially inner end P,, the distance LA between the axially inner end P,and the zigzag main groove being in the range of from 0.95 to 1.15 times the minimum distance LB between the zigzag main groove and the tread edge TE, and the distance LD from the taper end,to the bottom Ys measured in parallel with the tread surface,S being larger than the distance LC from the tread edge TE to the axially inner end P
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile