4. Heat exchange
  5. Movable heating or cooling surface
  6. Rotary drum

Ludwig Hellenthal

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Controllable-temperature roll

Heat exchange – Movable heating or cooling surface – Rotary drum
Patent

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Electrically heated calender roll

Roll or roller – With heating – cooling – or heat transfer means
Patent

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Heatable calender roll

Heat exchange – Movable heating or cooling surface – Rotary drum
Reexamination Certificate

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Induction heating for thermal rollers

Electric heating – Inductive heating – With heat exchange
Reexamination Certificate

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Roll, in particular, calender roll

Paper making and fiber liberation – Apparatus – Running or indefinite length product forming and/or treating...
Reexamination Certificate

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Profile ID: LFUS-PAI-P-380047

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