Plastic article or earthenware shaping or treating: apparatus – Means providing a shaping orifice – Core – pin or insert member
Reexamination Certificate
2006-07-19
2009-11-24
Tucker, Philip C (Department: 1791)
Plastic article or earthenware shaping or treating: apparatus
Means providing a shaping orifice
Core, pin or insert member
C264S039000
Reexamination Certificate
active
07621737
ABSTRACT:
A die assembly includes a die housing having a multiplicity of inner wall sections defining a die cavity, an inlet passageway passing through the die housing in fluid communication with the die cavity, and an outlet passageway passing through the die housing in fluid communication with the die cavity at a position distal from the inlet passageway. The die assembly also includes an insert removably received in the die cavity. The insert includes a body portion having a multiplicity of outer wall sections, and at least one flow channel is formed between at least one inner wall section of the die housing and each opposite outer wall section of the body portion of the insert; fluid communicates between the external supply and each of the flow channels and the outlet passageway. Also provided is a die insert and a method of purging gas from a die having an insert.
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Bertling Stephen M.
Ciliske Scott L.
Pekurovsky Mikhail L.
Solomonson Steven D.
3M Innovative Properties Company
Baker James A.
Hindenlang Alison
Tucker Philip C
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