Apparatus for making loose fill elements and element made...

Details Apparatus for making loose fill elements and element made... Apparatus for making loose fill elements and element made...

2007-11-13

2007-11-13

Davis, Robert (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

Including means advancing continuous length work through...

C425S315000, C425S81700C

Reexamination Certificate

active

10944607

ABSTRACT:
A packaging element is formed with a cross-section including a central portion, a first leg extending from one end of the central portion and a second leg extending from the opposite end of the central portion that is directed toward the first leg to at least partially enclose an opening between the legs. The packing element is made by passing a C-shaped extrudate of thermoplastic material containing an expanding agent about a guide roller with the legs of the extrudate directed away from the guide roller and within a water bath of a tank.

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