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:
Mar. 15, 2005
Filed:
Aug. 21, 2002
Vincenzo Benatti, Cinisello B., IT;
Vincenzo Benatti, Cinisello B., IT;
Pirelli Coordinamento Pneumatici S.p.A., Milan, IT;
Abstract
An apparatus for manufacturing tread bands for vehicle tires includes at least one primary extrusion head, a preforming device, at least one auxiliary extrusion head, an auxiliary feeding channel, and an extrusion die. The preforming device includes a primary preforming channel operatively connected to the at least one primary extrusion head. The auxiliary feeding channel is operatively connected to the at least one auxiliary extrusion head. The auxiliary feeding channel connects to the primary preforming channel. A direction of the auxiliary feeding channel forms an angle between approximately 30° and 160° relative to a direction of the primary preforming channel. The extrusion die is connected to the preforming device and includes an extrusion outlet. The auxiliary feeding channel connects to the primary preforming channel substantially near the extrusion outlet.