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:
Aug. 24, 1993
Filed:
Sep. 16, 1991
Giuliano Ghilardi, Sesto S. Giovanni, IT;
Pirelli Coordinamento Pneumatici S.p.A., Milan, IT;
Abstract
A pneumatic tire having a carcass 1 and at each sidewall 5 thereof are a first and a second elastomeric reinforcement inserts 13, 15 interposed between a first and a second carcass plies 10, 11. Each insert is thinner towards the respective opposite radial ends of its section. The reinforcement inserts 13, 15 are adjacent and in alignment with the maximum width of the tire 2 at a point 14. A third elastomeric insert 16 of lenticular section, internally covers the first carcass ply 10 and has an area of maximum thickness 16a in substantial alignment with the point of adjacency 14 between the reinforcement inserts 13, 15. The first and second reinforcement inserts 13, 15 behave like stiff arms, mutually hinged at their point 14 of adjacency. The movement of the arms toward each other is counteracted by a third elastomeric insert 16 acting as a spring therebetween.