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Class Information
Number: 366/88
Name: Agitating > Rubber or heavy plastic working > Stirrer is through-pass screw conveyor > Including sections of different pitch
Description: Subject matter wherein the spacing of thread or helical ribbon on a portion of said conveyor differs from the spacing of said thread or said helical ribbon on another portion.










Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8562203 Extruder Oct. 22, 2013
8556621 Extrusion blow molding apparatus for preparing polyester articles Oct. 15, 2013
8434928 Extruder having parallel shafts with combined elements May. 7, 2013
8393780 Screw assembly for cooking extruders operating with significantly reduced specific mechanical energy inputs Mar. 12, 2013
8303160 Device for extruding a thermoplastic product having sleeve forming screw section of flow arrester and screw with small screw diameter in relation to plasticizing section Nov. 6, 2012
8246240 Single screw extruder for processing of low viscosity preconditioned materials Aug. 21, 2012
8177413 Scientifically designed barrier screw May. 15, 2012
8172449 Kneading screw, twin screw extruder, and method for assembling kneading screw May. 8, 2012
8167478 Kneading screw and extruder May. 1, 2012
8070350 Clay extruder Dec. 6, 2011
8011823 Clay kneader Sep. 6, 2011
7910030 Process and apparatus for continuous wet granulation of powder material Mar. 22, 2011
7897083 Method for manufacturing liquid crystalline resin composition of reduced density Mar. 1, 2011
7866876 Device for degassing and filtering plastic melts Jan. 11, 2011
7635217 Extruder having variable mid-barrel restriction and adjacent high intensity mixing assembly Dec. 22, 2009
7566163 Screw set for extruder Jul. 28, 2009
7494264 Method of injection molding or extruding a polymer composition using a low compression screw Feb. 24, 2009
7419295 Extruder Sep. 2, 2008
7387426 Extruder screw with mixing section Jun. 17, 2008
7380973 Method and device for the reprocessing of a thermoplastic polycondensate Jun. 3, 2008
7350960 Dual flight rotors for continuous mixer assembly Apr. 1, 2008
7345116 Clear polycarbonate polyester blend Mar. 18, 2008
7329037 Plasticating screw for an extruder or extrusion press, having a narrower land width in the transition region Feb. 12, 2008
7244060 Kneading apparatus Jul. 17, 2007
7178973 Continuous annular layer mixer Feb. 20, 2007
7156550 Apparatus for plasticating thermoplastic resin including polypropylene Jan. 2, 2007
7150615 Molding machine for injection foaming Dec. 19, 2006
7101166 Apparatus for extruding ceramic molding Sep. 5, 2006
7101165 Extrusion molding apparatus for ceramic molded product Sep. 5, 2006
7097442 Extruder Aug. 29, 2006
7083321 Single screw extruder Aug. 1, 2006
7025491 Homogenizing and/or dispersing device comprising endless screws Apr. 11, 2006
7014353 Plasticating screw and apparatus Mar. 21, 2006
7004616 Kneading apparatus and method for kneading rubber-based composition using the same Feb. 28, 2006
6988821 Plastics screw with barrier members Jan. 24, 2006
6974243 Screw element for same-sense rotating multi-screw extruders Dec. 13, 2005
6962431 Extruder mixer Nov. 8, 2005
6949208 Injection molding process and injection molding apparatus for thermoplastic resin molded articles Sep. 27, 2005
6913380 Continuous preparation of heat-vulcanizable silicone compositions Jul. 5, 2005
6854873 Extruder for processing rubber mixtures Feb. 15, 2005
6811295 Batch mixer and a mixing rotor for the same Nov. 2, 2004
6790025 Extrusion molding apparatus Sep. 14, 2004
6752528 Plasticating screw for efficient melting and mixing of polymeric material Jun. 22, 2004
6745818 Method and apparatus for producing semisolid method slurries and shaped components Jun. 8, 2004
6705752 Single screw extruder Mar. 16, 2004
6672753 Apparatus for plasticating thermoplastics Jan. 6, 2004
6652254 Molding apparatus including screw for molded articles of thermoplastic gas impregnated resin Nov. 25, 2003
6599004 Extruder screw with improved energy efficient melting Jul. 29, 2003
6565348 Extruder for continuously manufacturing composites of polymer and cellulosic fibres May. 20, 2003
6547431 Mixing section for a feed screw and methods of making the same Apr. 15, 2003

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