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:
Dec. 01, 2009
Filed:
Apr. 24, 2002
Masahiro Hanya, Kobe, JP;
Masahiro Hanya, Kobe, JP;
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Abstract
A vehicle tire includes a tread provided with a tread pattern, which is made up of circumferentially arranged design units having a plurality of pitch lengths Pi (i=l to j) including a minimum pitch length Pl and a maximum pitch length Pj. Each of the design units has at least one groove with side walls each having an inclination angle αi in a cross section parallel to the tire equator, and the inclination angle α1 in the design unit having the minimum pitch length Pis less than the inclination angle αj in the design unit having the maximum pitch length Pj, whereby the rigidity difference between the design units having different pitch lengths is decreased. Preferably, the angle αi in a design unit having a pitch length Pi is not more than the angle αi+1 in a design unit having the next longer pitch length Pi+1.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile