Molding process and apparatus for continuously forming...

Details Molding process and apparatus for continuously forming... Molding process and apparatus for continuously forming...

2006-03-07

2010-11-16

Wyrozebski, Kat (Department: 1791)

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

C264S563000, C264S566000

Reexamination Certificate

active

07833449

ABSTRACT:
Continuous molding process and apparatus forms a hot melt of thermoplastic material against a mandrel disposed between revolving belt molds to make hollow product having surface patterns and textures of a variable configuration. The hot melt is delivered to the nip region of the revolving belt molds. The mandrel extends downstream of the nip region and provides resistance to the molding pressure to prevent the collapse of the hot molded product and to define the size and shape of the hollow in the formed product until it cools and sets.

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