Patent ID: 11897179
Assignee: BRÜCKNER MASCHINENBAU GMBH
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 9:
10. The ventilation module according to claim 8, wherein the following features:
the at least one first return system comprises at least one return box, which extends with its longitudinal direction transverse, substantially perpendicular to the withdrawal direction of the plastic film web and is oriented in parallel to the transport plane;
the at least one return box is distanced from the transport plane further than the at least one nozzle box, with the at least one return box and the at least one nozzle box being arranged on the same side of the transport plane;
the at least one return box comprising a continuous intake slot extending in the longitudinal direction of the at least one first return box or a plurality of intake openings arranged in rows in the longitudinal direction of the at least one return box and separated from one another.