Extrusion die

Details Extrusion die Extrusion die

2011-05-10

2011-05-10

Gupta, Yogendra N (Department: 1744)

Plastic article or earthenware shaping or treating: apparatus

Stock pressurizing means operably associated with downstream...

Including auxiliary shaping means associated with molding...

C425S381000, C425S461000, C425S466000, C425S467000

Reexamination Certificate

active

07938641

ABSTRACT:
An extrusion die comprises a die body defining a die cavity (18). The cavity (18) is shaped such that the die body includes a male portion (24) and a female portion (26). A leading edge (18a) of a part of one side of the die cavity (18) is out of alignment with a leading edge (18a) of an opposing part of the die cavity (18), at rest, such that, in use, when deflection of parts of the die occurs, the leading edges (18a) substantially align.

REFERENCES:
patent: 5756016 (1998-05-01), Huang et al.
patent: 6062059 (2000-05-01), Feldcamp
patent: WO 99/65622 (1999-12-01), None

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