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. 10, 2015
Filed:
Feb. 02, 2011
Masahiro Kishida, Hyogo, JP;
Ikuo Atake, Hyogo, JP;
Masahiro Kishida, Hyogo, JP;
Ikuo Atake, Hyogo, JP;
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Abstract
A pneumatic tire comprises a tread portion provided with a plurality of blocks, each of the block having a block wall surface facing a transverse groove inclined at an angle (theta) of from 5 to 40 degrees with respect to the tire axial-direction so as to define an acute-angled corner and an obtuse-angled corner on the block. The block wall surface between the acute-angled corner and the obtuse-angled corner is provided with at least two slits having a width of from 0.3 to 2.0 mm. A distance Pmeasured from the acute-angled corner to one of the at least two slits which is nearest to the acute-angled corner is more than a distance Pmeasured from said obtuse-angled corner to one of said at least two slits which is nearest to the obtuse-angled corner; each distance is measured along the radially outer edge of the block wall surface to the widthwise center of the slit.