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.:

US 7322919 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 29, 2008

Filed:

May. 03, 2005
Applicant:

Massimo Malini, Bologna, IT;

Inventor:

Massimo Malini, Bologna, IT;

Assignee:

Aetna Group S.p.A., Rimini, IT;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B31C 11/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A machine for forming tubular film lengths from a linear portion of film comprises: a unit () for feeding linear film portions (); at least one forming roller () that revolves about an axis () transversal to the direction of film feed; means () for applying the film portion () to the surface of the forming roller () as it revolves, at least until opposite edges () of the film portion () overlap; and means () for joining the overlapping edges () to each other to form a tubular film length ().


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