Curling device
OwnerFiorenzo Draghettiinventor
Life of this patent
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Abstract
A curling device for a filter tip attachment comprises an element placed in contact with a strip of paper material advancing continuously along a given path, and serving to deform the strip in such a way that single tipping papers obtained by cutting the strip are invested with a curled profile; the curling device is associated with a mechanism such as will cause it to vibrate, describing rectilinear or looped trajectories at a predetermined frequency, so as to reduce friction between the curling element and the strip.
Claims7
1) a device for curling a continuous strip of paper material advancing along a predetermined feed path toward at least one cutting unit by which the selfsame strip is divided into discrete lengths, comprising:
- at least one curling element operating on one surface of the advancing strip at a contact zone, in such a way as to deform the strip relative to its longitudinal dimension;
- vibrator means associated with the curling element.
Dependencies are inferred from the claim text.