Title:
METHOD AND APPARATUS FOR EXTRUSION OF FOOD PRODUCTS INCLUDING BACK PRESSURE VALVE/DIVERTER
Document Type and Number:
WIPO Patent Application WO2004019705
Kind Code:
B1
Abstract:
An extruder system (10, 124) for the processing of feed materials is provided including an extruder (12), adjustable back pressure valve assembly (14) and a superatmospheric post-extrusion product treatment assembly (16, 124). The back pressure valve assembly (14) includes an adjustable valve member (48) which can be shifted to alter the effective cross-sectional open area of a product passageway (36), and alternately can be shifted to a product diverting position wherein the product is diverted from downstream processing. The treatment assembly (16) includes a sealed housing (78) directly coupled to the assembly (14) so that product emerging from the assembly (14) passes into housing (78) without experiencing atmospheric pressure. The treatment assembly (124) includes a product-guiding cowlijng (128) which is open to the atmosphere, together with a sealed housing (134) for effecting above atmospheric pressure treatment of extruded product.
Inventors:
HAUCK BOBBIE W (US)
WENGER MARC (US)
WENGER MARC (US)
Application Number:
PCT/US2003/027344
Publication Date:
October 21, 2004
Filing Date:
August 29, 2003
Export Citation:
Assignee:
WENGER MFG (US)
HAUCK BOBBIE W (US)
WENGER MARC (US)
HAUCK BOBBIE W (US)
WENGER MARC (US)
International Classes:
A21C11/20; A23L1/00; B29C48/255; (IPC1-7): A23K1/00; A23P1/12; B29C44/02
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