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Class Information
Number: 366/89
Name: Agitating > Rubber or heavy plastic working > Stirrer is through-pass screw conveyor > Varying diameter of shaft
Description: Subject matter wherein the diameter of a portion of the shaft of said conveyor differs from the diameter of the shaft on another portion.










Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
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
8167478 Kneading screw and extruder May. 1, 2012
8011823 Clay kneader Sep. 6, 2011
7967905 Process for mixing modified bitumen by extrusion Jun. 28, 2011
7785094 High capacity extrusion die assembly Aug. 31, 2010
7629435 Method for producing masticated rubber Dec. 8, 2009
7494264 Method of injection molding or extruding a polymer composition using a low compression screw Feb. 24, 2009
7464485 Apparatus and method for dehumidifying and drying resin pellets Dec. 16, 2008
7452508 Aspirating and mixing of liquids within a probe tip Nov. 18, 2008
7329037 Plasticating screw for an extruder or extrusion press, having a narrower land width in the transition region Feb. 12, 2008
7156550 Apparatus for plasticating thermoplastic resin including polypropylene Jan. 2, 2007
7150615 Molding machine for injection foaming Dec. 19, 2006
7101165 Extrusion molding apparatus for ceramic molded product Sep. 5, 2006
7101166 Apparatus for extruding ceramic molding Sep. 5, 2006
7014353 Plasticating screw and apparatus Mar. 21, 2006
6988821 Plastics screw with barrier members Jan. 24, 2006
6974243 Screw element for same-sense rotating multi-screw extruders Dec. 13, 2005
6921191 Injection/extruder screw Jul. 26, 2005
6887062 Extruder screw tip and associated flow channel May. 3, 2005
6854873 Extruder for processing rubber mixtures Feb. 15, 2005
6790025 Extrusion molding apparatus Sep. 14, 2004
6752528 Plasticating screw for efficient melting and mixing of polymeric material Jun. 22, 2004
6726464 Mixing device for manufacturing molding Apr. 27, 2004
6705753 Extruder comprising blister mechanism Mar. 16, 2004
6672752 Extrusion apparatus with winding socket Jan. 6, 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
6609819 Twin screw extruder with conical non-parallel converging screws Aug. 26, 2003
6607299 Apparatus for removing debris from thermoplastic materials Aug. 19, 2003
6599004 Extruder screw with improved energy efficient melting Jul. 29, 2003
6513963 Multi-staged vented extrusion screw with dual channel depth pumping section Feb. 4, 2003
6454454 Polymer melting and extruding apparatus with linear downstream threads Sep. 24, 2002
6345976 Injection apparatus Feb. 12, 2002
6331069 Concrete extrusion machine and spiral conveyor therefor Dec. 18, 2001
6312148 Removal of gaseous phase from continuous mixing chamber for rubber compound Nov. 6, 2001
6293690 Vented single stage barrier screw with a gas vent hole and axial bore in the screw for venting gases Sep. 25, 2001
6247836 Injection screw for injection molding a preform of a polyester resin Jun. 19, 2001
6234659 Surge suppressor for vented injection molding machine screw May. 22, 2001
6227692 Double wave screw May. 8, 2001
6179461 Extruder screw Jan. 30, 2001
6176606 Extruder screw Jan. 23, 2001
6139179 Extruder screw having multi-channeled barrier section Oct. 31, 2000
6136246 Screw extruder with improved dispersive mixing elements Oct. 24, 2000
6132075 Multichannel wave screw with a slush channel barrier section Oct. 17, 2000
6129873 Process for removing moisture and volatiles from pellets in single screw extruders Oct. 10, 2000
6080346 Extrusion apparatus and method and extruded thermoplastic polymer Jun. 27, 2000
6062719 High efficiency extruder May. 16, 2000
6056430 Plasticating apparatus having a multichannel wave screw with a cross channel solids transition May. 2, 2000

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