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. 15, 1981
Filed:
Apr. 08, 1980
Makoto Yoshioka, Higashimurayama, JP;
Hiroshi Ogawa, Kodaira, JP;
Bridgestone Tire Company Limited, Tokyo, JP;
City of Sapporo, Tokyo, JP;
Abstract
A large-sized pneumatic radial tire is disclosed. The tire comprises a tread including grooves, a belt composed of a plurality of rubberized layers each containing steel cords, and a carcass of a substantially radial construction. The tread includes two half regions divided with respect to a crown center, one a region in a direction of plysteer due to the tire construction and the ground contact reaction force acting on steel cords of at least one rubberized layer disposed near the tread, and the other being a region opposite to the direction of plysteer. A row of small holes are formed in an island part along its edge near the kicking-out side of the groove in the region opposite to the direction of plysteer.