High capacity extrusion die assembly

Plastic article or earthenware shaping or treating: apparatus – With separate and distinct upstream agitating or kneading means – Within pressurizing chamber

Reexamination Certificate

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Details

C099S348000, C099S353000, C099S355000, C425S378100, C425S378200, C425S382200, C425S464000, C426S516000

Reexamination Certificate

active

07654813

ABSTRACT:
High-capacity extrusion die assemblies (20, 90, 130, 140, 180, 252) each having a tubular sections (44, 146, 162, 268) and an elongated, axially rotatable, helically flighted screw section (56, 56a,152, 168, 276, 278) which cooperatively define frustoconical, outwardly diverging material flow paths (75, 160, 291) at constant or differing divergence angles of from about 1-11°. The use of diverging tubular sections (44, 146, 162, 268) and screw sections (56, 56a,152, 168, 276, 278) permits the use of larger die plates (76, 118, 292) with an increased number of die openings (80, 124, 296). This allows significant increases in extrusion production rates. The die assemblies (20, 90, 130, 140, 180, 252) can be used in the production of a wide number of human foods or animal feeds, and particularly aquatic feeds of the floating or sinking variety. In another aspect of the invention, an extruder (210) is provided having diverging and converging sections (212, 214) along the length thereof and defining corresponding flow paths (230, 246).

REFERENCES:
patent: 2020843 (1935-11-01), Lohner
patent: 3285200 (1966-11-01), Slaybaugh et al.
patent: 3664795 (1972-05-01), Heinz et al.
patent: 3728053 (1973-04-01), Stillhard et al.
patent: 3904341 (1975-09-01), Putti
patent: 4039691 (1977-08-01), Hildebolt
patent: 4055681 (1977-10-01), Balaz et al.
patent: 4118164 (1978-10-01), Wenger et al.
patent: 4125635 (1978-11-01), de Ruyter
patent: 4168942 (1979-09-01), Firth
patent: 4173445 (1979-11-01), McKelvey et al.
patent: 4206713 (1980-06-01), Ryason
patent: 4285271 (1981-08-01), Falck et al.
patent: 4346652 (1982-08-01), de Ruyter
patent: 4352650 (1982-10-01), Marshall
patent: 4384837 (1983-05-01), Murai et al.
patent: 4400218 (1983-08-01), Koch et al.
patent: 4422839 (1983-12-01), Przytulla et al.
patent: 4454804 (1984-06-01), McCulloch
patent: 4483257 (1984-11-01), den Otter
patent: 4534992 (1985-08-01), Taguchi et al.
patent: 4836460 (1989-06-01), Akazawa
patent: 4875847 (1989-10-01), Wenger et al.
patent: 4886440 (1989-12-01), Forrest et al.
patent: 4928892 (1990-05-01), Huebner et al.
patent: 4978077 (1990-12-01), Huebner et al.
patent: 5458836 (1995-10-01), Rakestraw et al.
patent: 5460506 (1995-10-01), Price, IV et al.
patent: 5914148 (1999-06-01), Kazemzadeh
patent: 6016742 (2000-01-01), Hauck et al.
patent: 6074084 (2000-06-01), Kolossow
patent: 6103290 (2000-08-01), Wenger
patent: 6331069 (2001-12-01), Putti
patent: 6485287 (2002-11-01), Sugano
patent: 6491510 (2002-12-01), Tieu et al.
patent: 6773739 (2004-08-01), Hauck et al.
patent: 7101166 (2006-09-01), Yamaguchi et al.
patent: 7448795 (2008-11-01), Wenger et al.
patent: 2002/0062740 (2002-05-01), Brukov et al.
patent: 2002/0098255 (2002-07-01), Ayash
patent: 2006/0019009 (2006-01-01), Keller et al.
patent: 2006/0280850 (2006-12-01), Epstein et al.
patent: 2008/0111954 (2008-05-01), Hashimoto et al.
patent: 644058 (1984-07-01), None
patent: 55013147 (1980-01-01), None
Effects of Die Dimensions on Extruder Performance; Journal of Food Engineering; 1997; Sokhey A S; Ali Y; Hanna M A; Foodline; abstract only.
Influence of Extrusion Conditions on Extrusion Speed, Temperature, and Pressure in the Extruder and on Pasta Quality; Cereal Chemistry; 1994; Abecassis, J.; Abbou, R; Food Sci.&Tech.Abs; summary only.
Barrel-Valve Assembly: Its Influence of Residence Time Distribution and Flow Pattern in a Twin-screw Extruder; Transactions of the ASAE; 1994; Liang, M.; Hsieh, F; Agricola; summary only.

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