Extruder with gear pump

Details Extruder with gear pump Extruder with gear pump

2008-02-18

2009-10-27

Cooley, Charles E (Department: 1797)

Agitating

Rubber or heavy plastic working

With specified discharge means

C366S083000

Reexamination Certificate

active

07607818

ABSTRACT:
An extruder for viscous masses, and including an extruder screw and a positive-displacement gear pump disposed downstream of the extruder screw as viewed in the conveying direction. The positive-displacement gear pump has at least one conveying gear and at least one positive-displacement gear. The axis of the conveying gear is disposed essentially at right angles to the axis of the extruder screw, and the axis of the positive-displacement gear is disposed essentially in the same direction as the axis of the extruder screw.

REFERENCES:
patent: 2692405 (1954-10-01), Gayler
patent: 2767437 (1956-10-01), Marshall
patent: 4730935 (1988-03-01), Kolossow
patent: 5153009 (1992-10-01), Voigt
patent: 5310256 (1994-05-01), Boden
patent: 6799881 (2004-10-01), Fischer
patent: 6974310 (2005-12-01), Uphus
patent: 7290923 (2007-11-01), Fischer et al.
patent: 7350959 (2008-04-01), Uphus
patent: 7354188 (2008-04-01), Uphus et al.
patent: 1731764 (2006-12-01), None
patent: 2006247917 (2006-09-01), None

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