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. 17, 2009
Filed:
Feb. 17, 2005
Makoto Ishiyama, Kodaira, JP;
Makoto Ishiyama, Kodaira, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
The ground contact pressure on land portionsis uniformed so that drivability is improved and uneven wear is suppressed to improve wear resistance. The parts of the carcass layerand belt layeroverlapping with the main groovesare convexly curved toward the outside in the radial direction due to the internal pressure. The reinforcing layeris arranged at the position spaced from the neutral axis of deformation in the compressed side in a certain distance, i.e. radially inside of the radially outermost carcass ply, and the steel cordswhich extend in the direction including the tire width direction and its approximate direction and which act as supports for resisting against the compression force are embedded in the reinforcing layer. As a result, the above-mentioned curved deformation can be effectively suppressed.