Multi-extrusion die assembly for thermoplastic materials

Details Multi-extrusion die assembly for thermoplastic materials Multi-extrusion die assembly for thermoplastic materials

1981-08-21

1982-11-09

Thurlow, Jeffery R.

Plastic article or earthenware shaping or treating: apparatus

Means feeding fluent stock from plural sources to common...

Extrusion shaping means

264171, 264177R, 4251335, 425186, 425192R, 425462, B29F 304

Patent

active

043582613

ABSTRACT:
A multi-extrusion die assembly for use in a multi-extrusion arrangement for thermoplastic materials in which undesirable oozing out or exuding of thermoplastic material through mating surfaces between a die box and a preformer or deformation of extruded material at a second introducing passage, etc. are prevented through improvements on the disposition of extruders and constructions of the die box and preformer, while attaching and detaching of a block and a lower box with respect to the die box are facilitated for efficient extrusion.

REFERENCES:
patent: 2096362 (1937-10-01), Lehman
patent: 2444831 (1948-07-01), Kilborn
patent: 2569373 (1951-09-01), Fay
patent: 2897543 (1959-08-01), Weston et al.
patent: 3099859 (1963-08-01), Eilersen
patent: 3486195 (1969-12-01), Greenwood
patent: 3488807 (1970-01-01), Vossen
patent: 3849045 (1974-11-01), Ohkawa et al.
patent: 4137027 (1979-01-01), Ruger
patent: 4280801 (1981-07-01), Wheeler, Jr. et al.
patent: 4316710 (1982-02-01), Greenwood

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