Agitating – Rubber or heavy plastic working – Stirrer is through-pass screw conveyor
Patent
1999-09-03
2000-10-31
Cooley, Charles E.
Agitating
Rubber or heavy plastic working
Stirrer is through-pass screw conveyor
366 88, 366 89, B29B 742
Patent
active
061391794
ABSTRACT:
An axially elongated extruder screw includes a screw body having an axially extending extruding portion defined by a feed section at an inlet end of the screw, a metering section at an outlet end of the screw and a barrier section between the feed and metering sections. A first helical primary flight extends continuously about and is coaxial with the screw body substantially along the entire length of the extruder screw. A second helical primary flight extends continuously at least part-way along the feed section to the outlet end of the extruder screw. The barrier section of the extruder screw defines first and second barrier flights positioned between the primary flights and cooperating therewith to form first and second melt and solids channels that extend along the barrier section of the extruder screw.
REFERENCES:
patent: 3650652 (1972-03-01), Dray et al.
patent: 3698541 (1972-10-01), Barr
patent: 4000884 (1977-01-01), Chung
patent: 4015832 (1977-04-01), Kruder
patent: 4125333 (1978-11-01), Fields
patent: 4128341 (1978-12-01), Hsu
patent: 4173417 (1979-11-01), Kruder
patent: 4277182 (1981-07-01), Kruder
patent: 4341474 (1982-07-01), Wheeler, Jr. et al.
patent: 4798472 (1989-01-01), Chan et al.
patent: 4944906 (1990-07-01), Colby et al.
patent: 4963033 (1990-10-01), Huber et al.
patent: 5004352 (1991-04-01), Tamura et al.
patent: 5035509 (1991-07-01), Kruder
patent: 5219590 (1993-06-01), Kruder et al.
patent: 5244373 (1993-09-01), Capelle et al.
patent: 5288223 (1994-02-01), Toro
patent: 5375992 (1994-12-01), Kruder et al.
patent: 5599097 (1997-02-01), Christie
patent: 5599098 (1997-02-01), Christie
Christiano John P.
Thompson Michael R.
Cooley Charles E.
Davis-Standard Corporation
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