Pneumatic core cleaning system
AssigneeBrunn Air Systems, Inc.
InventorJohn Kelyman
Life of this patent
Estimating the term…
Abstract
A powered pneumatic system for capturing a rejected tissue sheet on a parent roll for recycling.The parent roll is supported on a powered parent roll back stand, which turns the parent roll to unwind it. The sheet is drawn into the inlet of a wide pneumatic hood. Suction pressure supplied by a material-handling fan draws the sheet through a duct, where the material-handling fanbreaks it up. The air with entrained, broken paper may be supplied either to a dry system, typically including a separator to separate the paper from the air, or to a wet system for pulping the paper. A trim receiver is one example of a dry system separator. A Venturi scrubber is one example of a wet system. In either case, the paper from the parent roll can be recycled without needing to cut the paper from the roll.
Claims17
An apparatus, comprising:
- a powered stand arranged to drive a roll of paper in an unwinding direction;
- a hood disposed below the powered stand, the hood having an inlet sized and arranged to accept an unwound sheet from the roll;
- a material-handling fan in communication with the hood through a duct, the material-handling fan providing sufficient airflow to move the sheet from the hood and through the duct;
- and
- a wet system in fluid communication with the material-handling fan to receive the sheet from the material-handling fan and convert it to a wet slurry of material for recycling.
An apparatus, comprising:
- a powered stand arranged to drive a roll of paper in an unwinding direction;
- a hood disposed below the powered stand, the hood having an inlet sized and arranged to accept an unwound sheet from the roll;
- and
- a material-handling fan in communication with the hood through a duct, the material-handling fan providing sufficient airflow to move the sheet from the hood and through the duct, and breaking the unwound sheet into pieces as the unwound sheet passes through the fan.
Dependencies are inferred from the claim text.