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:
Jan. 02, 1996
Filed:
Jun. 09, 1992
Applicant:
Inventor:
Hiromichi Ikeda, Tokyo, JP;
Assignee:
Bridgestone Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60C / ;
U.S. Cl.
CPC ...
1522 / ; 1522 / ;
Abstract
A pneumatic tire for truck and bus comprises a tread portion having a lug pattern, wherein an intersection angle .theta..sub.1 defined by a standard line segment passing a lug edge with an obtuse angle with respect to tread side edge and a meridional line passing the standard line segment satisfies an equation of 0.degree.<.theta..sub.1 <35.degree., and a lug groove wall located side the standard line segment in the lug is folded outward from a middle portion of a lug groove depth in the radial direction of the tire so as to enlarge the lug groove.