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:
Jul. 03, 2012
Filed:
Jul. 27, 2005
Yoichi Nakamura, Kodaira, JP;
Takashi Kodama, Kodaira, JP;
Yoichi Nakamura, Kodaira, JP;
Takashi Kodama, Kodaira, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
A pneumatic tire which prevents one-sided biased abrasion from being generated, the pneumatic tire having a non-directed rotational direction and comprises lug groovescutting across a land portion at a shoulder side of a tread portionat both sides in a tire width direction. Each of the lug grooveshas a tapered groove portionsuch that the groove width gradually becomes narrower such that a trapezoidal block portionhaving a short side at the shoulder side as seen from a tire tread surface side is formed between the lug groovesin a tire peripheral direction. The tapered groove portionis formed so as to extend beyond a one quarter point Q from a tread end T. Accordingly, since in whichever direction the pneumatic tireis rotated, a lug angle α of a trailing end near the one quarter point Q becomes 90 degrees or less, it is possible to prevent one-sided biased abrasion from being generated.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile