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.

Date of Patent:
Nov. 04, 2014

Filed:

Mar. 31, 2004
Applicants:

Claudio Lacagnina, Milan, IT;

Luigi Braghieri, Santo André, BR;

Inventors:

Claudio Lacagnina, Milan, IT;

Luigi Braghieri, Santo André, BR;

Assignee:

Pirelli Tyre S.p.A., Milan, IT;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D 30/26 (2006.01); B29D 30/20 (2006.01);
U.S. Cl.
CPC ...
B29D 30/2607 (2013.01); B29D 30/20 (2013.01);
Abstract

In the field of tire building, underbelt inserts are applied to an expandable support associated with an auxiliary drum on which the belt structure is made, simultaneously with manufacture of a carcass structure on a primary drum. Following expansion of the expandable support, the underbelt inserts are applied to the belt structure that can be directly made on the support itself in an expanded condition. The belt structure together with the underbelt inserts and a tread band are then transferred onto the carcass structure formed on the primary drum to complete building of the tire following shaping of the carcass into a toroidal conformation.


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