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Class Information
Number: 366/84
Name: Agitating > Rubber or heavy plastic working > Stirrer is through-pass screw conveyor > Plural screw conveyors on separate shafts > In parallel intercommunicating mixing chambers
Description: Subject matter wherein said conveyors are located within a plurality of mixing chambers having main axes parallel to each other and each mixing chamber is in communication with each other so that material may flow from one mixing chamber to another.

Sub-classes under this class:

Class Number Class Name Patents
366/86 Intercommunication by conduit 21
366/85 Screw conveyors intermeshing 221

Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8596856 Counter-rotating twin screw extruder Dec. 3, 2013
8500433 Screw machine Aug. 6, 2013
8246240 Single screw extruder for processing of low viscosity preconditioned materials Aug. 21, 2012
8177412 Kneading apparatus and method for kneading rubber-based composition using the same May. 15, 2012
8172450 Extruder May. 8, 2012
8079747 Counter-rotating twin screw extruder Dec. 20, 2011
8066423 High speed and direct driven rotating equipment for polyolefin manufacturing Nov. 29, 2011
7954991 Screw extruder with plunger feeder Jun. 7, 2011
7637650 Continuous mixer and operating method thereof Dec. 29, 2009
7618180 Kneading disk apparatus Nov. 17, 2009
7556420 Internal mixer for kneading plastic materials Jul. 7, 2009
7513677 Extruder for producing molten plastic materials Apr. 7, 2009
6997694 Extruder Feb. 14, 2006
6811295 Batch mixer and a mixing rotor for the same Nov. 2, 2004
6805480 Cylinder for a twin-screw extruder with a helical channel of varying depth Oct. 19, 2004
6494607 Four wing, non-intermeshing rotors for synchronous drive to provide improved dispersive and distributive mixing in internal batch mixers Dec. 17, 2002
6409373 Continuous kneader, rotor for material discharging Jun. 25, 2002
6402360 Internal batch mixing machines and rotors Jun. 11, 2002
6270245 Extrusion machine barrel having a three-lobe bore, and liner therefor Aug. 7, 2001
6238079 Kneading degree adjusting device for twin extruder May. 29, 2001
6224251 Continuous kneading machine May. 1, 2001
6136246 Screw extruder with improved dispersive mixing elements Oct. 24, 2000
6074084 Extruder for plastics Jun. 13, 2000
6060010 Fiber reinforced thermoplastic resin structure, process for production of same, and extruder for production of the same May. 9, 2000
5947593 Twin-screw kneading apparatus Sep. 7, 1999
5932159 Screw extruder with improved dispersive mixing Aug. 3, 1999
5873654 Twin screw extruder type batch mixers Feb. 23, 1999
5836682 Apparatus for continuous processing of flowable materials Nov. 17, 1998
5816699 Twin screw extruder barrel with an easily removable seamless insert having a wear and corrosion resistant lining Oct. 6, 1998
5806974 Parallel-rotor mixing machine with a closed mixing chamber having walls symmetrically translated with respect to the rotor axes Sep. 15, 1998
5791776 Hermetically closed kneading apparatus Aug. 11, 1998
5672006 Internal rubber mixer Sep. 30, 1997
5639159 Apparatus for mixing, kneading and extruding material Jun. 17, 1997
5592873 Juice extractor Jan. 14, 1997
5590959 Continuous mixer and rotor segment removal tool for the same Jan. 7, 1997
5549383 Screw-type extrusion machine with heating elements Aug. 27, 1996
5545024 Screw for double-shaft extruding device and double-shaft extruding device Aug. 13, 1996
5540900 Reactors and apparatus for the physico-chemical treatments of substances in the solid, liquid or gaseous state Jul. 30, 1996
5525649 Magnetic paint and process for producing the same Jun. 11, 1996
5510073 Planetary gear for a multiple-screw extruder Apr. 23, 1996
5460445 Mixer Oct. 24, 1995
5429489 Volumetric blending, mixing and extruding of polymer like materials Jul. 4, 1995
5381730 Juice extractor Jan. 17, 1995
5356208 Screw element having shearing and scraping flights Oct. 18, 1994
5352539 Extruder housing for double-screw extruder having an annularly stepped internal bore covered by a hot isostatically-pressed structure, and method of making same Oct. 4, 1994
5297865 Method and apparatus for the mixing of mixing material with thermoplastic material Mar. 29, 1994
5273356 Rotor zone cooling method and apparatus for rotors in continuous mixers of plastic materials Dec. 28, 1993
5266256 Extruder and process modifying residence time distribution Nov. 30, 1993
5217726 Segmented barrel extruder feeder device Jun. 8, 1993
5209937 Insert for barrel extruders May. 11, 1993

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