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:
Nov. 03, 1992
Filed:
Aug. 06, 1990
Applicant:
Inventors:
Akihito Goto, Kodaira, JP;
Yasutaka Enoki, Sayama, JP;
Assignee:
Bridgestone Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60C / ;
U.S. Cl.
CPC ...
1522 / ; 152D / ;
Abstract
In a heavy duty pneumatic tire, a protrusion is disposed in an intersect portion between circumferential groove and transverse groove in a tread of block pattern, whereby stone capturing is prevented. Furthermore, blind sipe is formed in each block of at least center and second block rows, whereby heel and toe wear as well as shoulder wear are prevented.