Take-off unit

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2007-10-09

2007-10-09

Gupta, Yogendra N. (Department: 1722)

Plastic and nonmetallic article shaping or treating: processes

Utilizing heat releasable stress to reshape solid workpiece

C264S3420RE, C425S4360RM

Reexamination Certificate

active

10542403

ABSTRACT:
A withdrawal device for blow-molded film has an air turning bar with an air cushioned surface for transporting the film, and the bar surface includes at least in part a sintered material. The sintered material portion of the bar surface provides a region of increased friction for compressed air flow, thus more effectively guiding the withdrawn film in a flat and even form.

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