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:
Oct. 25, 1988
Filed:
Feb. 20, 1987
Yasuaki Tsurunaga, Musashimurayama, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
A pneumatic bias tire for use on rough road is disclosed, having a carcass with an improved durability. The carcass composed of not less than twelve carcass plies toroidally extending from a tread to sidewalls wherein rubber sheets are interposed between carcass plies of at least the outermost and the innermost bundles each of which comprises at least two carcass plies, the bead side ends and the tread side ends of the rubber sheets being terminated in specific regions, respectively to provide rubber material having an increased thickness between carcass plies so that the rigidity of carcass at the sidewall portion subjected to large compression strain and at the turned-back ends of carcass plies subjected to shearing strain is improved.