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:
Feb. 11, 2025
Filed:
May. 26, 2020
Pirelli Tyre S.p.a., Milan, IT;
Cesare Emanuele Amurri, Milan, IT;
Christian De Col, Milan, IT;
Marco Cantu′, Milan, IT;
Roger Basilico, Milan, IT;
PIRELLI TYRE S.p.A., Milan, IT;
Abstract
In a process for building tyres for vehicle wheels, at least one tread band () or other elastomeric component of a tyre () is made by applying at least one continuous elongated element () according to a plurality of turns (C) around a forming drum () rotating around a geometric rotation axis (X) thereof. The continuous elongated element () is made by the action of extruding a first material through an extrusion nozzle (), to form an inner core () of said continuous elongated element () exiting from an outlet opening () of the extrusion nozzle (). During the extrusion, a second material different from the first material is conveyed around the first material, at the extrusion nozzle () and upstream of the outlet opening (), to form a coating layer () which entirely surrounds the inner core ().