Honeycomb structure body molding die

Details Honeycomb structure body molding die Honeycomb structure body molding die

2008-07-15

2009-12-29

Davis, Robert B (Department: 1791)

Plastic article or earthenware shaping or treating: apparatus

With apparatus assembly or dismantling means or with idle part

For extrusion or injection type shaping means

C264S177120, C425S380000, C425S461000, C425S467000

Reexamination Certificate

active

07637731

ABSTRACT:
A honeycomb structure body molding die is disclosed including a die main body, having a feed bore section and a slit recess section, and a guide ring having an upright support section and a guide section carried on the upright section, which includes a stepped section and has a central slit recess forming section, provided on the stepped section, and an outer circumferential slit recess forming surface. The die main body has a non-opposing region, formed on an area outside the stepped section, in which the outer circumferential slit recess forming surface does not axially face the guide section, while having a feed bore closing region closing the feed bores. The die main body has outer circumferential-skin forming material feed passages formed in an area outside the feed bore closing region for feeding the molding material to a squeezing outlet for forming an outer circumferential skin.

REFERENCES:
patent: 3790654 (1974-02-01), Bagley
patent: 4668176 (1987-05-01), Zeibig et al.
patent: 4915612 (1990-04-01), Gangeme et al.
patent: 5256054 (1993-10-01), Cocchetto et al.
patent: 5906839 (1999-05-01), Miura et al.
patent: 6854969 (2005-02-01), Shibagaki et al.
patent: 2007/0026188 (2007-02-01), Bookbinder et al.
patent: 2002-283326 (2002-10-01), None

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