Back to results
US 12,070,910 B2Granted
Apparatus and method for heating a movable web
AssigneeFameccanica.Data S.p.A.
InventorAsti Radovani
Life of this patent
Estimating the term…
Abstract
A heating unit for heating a continuous web, includes a heating roller rotating about an axis of rotation and having an outer surface comprising a pattern of thermally conductive areas and thermally insulating areas, and at least one induction heater electromagnetically coupled to the thermally conductive areas of the outer surface of the heating roller.
Claims10
An apparatus for packaging articles, comprising:
- first and second feeding assemblies configured for feeding first and second continuous webs in respective longitudinal directions,
- an inlet conveyor configured for feeding a flow of articles between said first and second continuous webs,
- an overlapping unit configured for overlapping to each other the first and second continuous webs on opposite sides of said flow of articles,
- a compression unit configured for compressing said first and second continuous webs around articles of said flow of articles, and
- at least one heating unit for heating at least one of said first and second continuous webs, the at least one heating unit comprising:
- a heating roller rotating about an axis of rotation and having an outer surface comprising a pattern of thermally conductive areas and thermally insulating areas, and
- a heating device for heating said thermally conductive areas, comprising at least one induction heater electromagnetically coupled to said thermally conductive areas of the outer surface of the heating roller.
4 more elements
A method for packaging articles, comprising:
- providing first and second feeding assemblies configured for feeding first and second continuous webs in respective longitudinal directions,
- providing an inlet conveyor configured for feeding a flow of articles between said first and second continuous webs,
- providing an overlapping unit configured for overlapping to each other the first and second continuous webs on opposite sides of said flow of articles,
- providing a compression unit configured for compressing said first and second continuous webs around articles of said flow of articles, and
- providing at least one heating unit for heating at least one of said first and second continuous webs, the at least one heating unit comprising:
- a heating roller configured to rotate about an axis of rotation and having an outer surface comprising a pattern of thermally conductive areas and thermally insulating areas, and
- a heating device for heating said thermally conductive areas, comprising at least one induction heater electromagnetically coupled to said thermally conductive areas of the outer surface of the heating roller, and
- generating, by said at least one induction heater, an electromagnetic field inductively coupled to said thermally conductive areas so as to heat said thermally conductive areas by induction heating.
5 more elements
Dependencies are inferred from the claim text.