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:
Jun. 11, 1991
Filed:
May. 17, 1989
Applicant:
Inventor:
Kiyoshi Ochiai, Kobe, JP;
Assignee:
Sumitomo Rubber Industries, Ltd., Hyogo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60C / ;
U.S. Cl.
CPC ...
1522 / ;
Abstract
A pneumatic tire having lateral tread grooves extending parallel or aslant to the axial direction of the tire, wherein the lateral tread grooves are provided with a bridge which extends between the opposed groove sidewalls thereof apart from the groove base thereof to connect the groove sidewalls with each other, whereby the movement of the groove sidewalls and the deformation thereof when contacting with and leaving the ground is reduced to prevent uneven wear such as heel and toe wear without deteriorating the braking performance.