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:
Jul. 09, 2002
Filed:
Jul. 13, 1999
Applicant:
Inventors:
Alberto Carra, Milan, IT;
Luigi Campana, Milan, IT;
Assignee:
Pirelli Pneumatici S.p.A., Milan, IT;
Primary Examiner:
Int. Cl.
CPC ...
B60C 1/111 ; B60C 1/112 ; B60C 1/113 ;
U.S. Cl.
CPC ...
B60C 1/111 ; B60C 1/112 ; B60C 1/113 ;
Abstract
A tire ( ) having low rolling resistance, in particular for driving wheels of heavy vehicles, comprises a tread ( ) provided with a plurality of transversal grooves ( ) pitchwise spaced from one another and extending in a direction substantially perpendicular to the rolling direction of the tire (D). The grooves ( ) have a reduced depth and are provided with respective slits ( ), extending from a bottom portion ( ) thereof; as such, they contribute to impart to the tire ( ) both the desired low rolling resistance and an adequate traction characteristics during straightaway running.