Multi-orifice coextrusion apparatus

Details Multi-orifice coextrusion apparatus Multi-orifice coextrusion apparatus

1989-10-11

1990-09-04

Hoag, Willard

Plastic article or earthenware shaping or treating: apparatus

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

Extrusion shaping means

994506, 425190, 425308, 425309, 425463, 425466, B29C 4706, A21C 1116

Patent

active

049540610

ABSTRACT:
The present invention presents a dual-textured pet food as well as a multi-orifice coextrusion apparatus and method for the use of the multi-orifice coextrusion apparatus for preparing the dual-textured pet food of the invention. The multi-orifice coextrusion apparatus of the present invention feeds a first extruded material through a plurality of inner openings, and a second extruded material through a plurality of outer, annular openings, the inner openings and the annular openings converging to enable formation of a center-filled extrudate at a plurality of extrusion orifices. The present invention also presents a means of configuring the orifices to maintain substantially uniform distribution and volumetric flow of the second extruded material about the first extruded material across the cross section of the orifices.

REFERENCES:
patent: 936722 (1909-10-01), Howard
patent: 3227103 (1966-01-01), Schafer
patent: 3370553 (1968-02-01), Rich et al.

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