Rewinding machine and method for the formation of logs of...

Winding – tensioning – or guiding – Convolute winding of material – With tearing or breaking

Reexamination Certificate

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C242S526000, C242S542200

Reexamination Certificate

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06948677

ABSTRACT:
The rewinding machine for the formation of logs (L) of web material (N) wound on a core (A), includes a first winder roller (15) around which the web material (N) is fed, and a second winder roller (17) forming, with the first winder roller, a nip (19) through which the core (A) and the web material (N) pass. A web material-severing device (43) cooperates with the first roller (15). Located upstream of the nip (19), with respect to the direction of movement of the web material (N), is a surface (33) defining, with the roller (15), a channel (39) into which the core (A) is inserted. A conveyor (47; 57; 67) introduces a core into the channel (39). The material-severing device (43) cooperates with the roller (15) along the channel (39) between the region of insertion of a new core and the nip (19).

REFERENCES:
patent: 5979818 (1999-11-01), Perini et al.
patent: 6648266 (2003-11-01), Biagiotti et al.

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