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:
Jul. 26, 2022
Filed:
Nov. 17, 2020
Gdm S.p.a., Bologna, IT;
Matteo Piantoni, Albino, IT;
Gabriele Resmini, Vailate, IT;
Maurizio Spatti, Sulzano, IT;
Aldo Fusar Poli, Offanengo, IT;
Andrea Duchini, Castelleone, IT;
Enrico Campagnoli, S. Giovanni in Persiceto, IT;
Luca Borderi, Sasso Marconi, IT;
Andrea Biondi, Bologna, IT;
Gianluca Parisini, Bologna, IT;
GDM S.P.A., Bologna, IT;
Abstract
A rotary device for welding a continuous web includes a rotary element, support elements for supporting the web, supported by the rotary element, and a plurality of welding units for welding the web. Each welding unit passes from a non-operating position to an operating position and vice versa, and includes a first movement device for commanding a relative rotation of an anvil element relative to a welding tip and a second movement device for moving the anvil element relative to the welding tip such that a contact surface of the anvil element and a contact surface of the welding tip make contact with a portion of the web in a zone between them, and vice versa. First and second drive mechanisms drive the first and second movement devices. The first and second drive mechanisms are configured to vary a positioning of the welding tip relative to the axis.