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Browse by Category: Main > Material Science
Class Information
Number: 425/204
Name: Plastic article or earthenware shaping or treating: apparatus > With separate and distinct upstream agitating or kneading means > Plural means being diverse, or parallel and intermeshing or concentric
Description: Apparatus in which there are a plurality of mixing or kneading means, at least two of which differ in type, one from the other, or are positioned one within the other or the mixing elements of one interengage or interdigitate with those of the other.










Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8636497 Extruder screw for a screw extruder Jan. 28, 2014
8585389 Device for manufacturing a rubber strip Nov. 19, 2013
8500433 Screw machine Aug. 6, 2013
8403554 Screw for extruder, bearing segment used in the same and twin screw extruder provided with screw for extruder Mar. 26, 2013
8322272 Method for positive feeding of preconditioned material into a twin screw extruder Dec. 4, 2012
8105067 Method and apparatus for casting concrete products Jan. 31, 2012
7993122 Device for improved reinforcing element with a continuous center core member with very long fiber reinforced thermoplastic wrapping Aug. 9, 2011
7981340 Method of degassing a flowable mass in a ring extruder Jul. 19, 2011
7866876 Device for degassing and filtering plastic melts Jan. 11, 2011
7857499 Method and device for homogenizing and filtering a viscoelastic material using coaxial telescoping screws Dec. 28, 2010
7842221 Process and apparatus for the production of filled thermoplastic polymers Nov. 30, 2010
7785094 High capacity extrusion die assembly Aug. 31, 2010
7731879 Extrusion of peroxide crosslinkable polymer parts Jun. 8, 2010
7661941 Machine with vibratable section Feb. 16, 2010
7654725 Degassing of flowable masses in a multiple-screw extruder Feb. 2, 2010
7654726 Multi-shaft extruder Feb. 2, 2010
7648357 Extruder Jan. 19, 2010
7629435 Method for producing masticated rubber Dec. 8, 2009
7594807 Twin-screw extruder Sep. 29, 2009
7566163 Screw set for extruder Jul. 28, 2009
7550100 Process and apparatus for the production of paper products Jun. 23, 2009
7476096 Screw extruder Jan. 13, 2009
7309224 Device for preparation of plastic materials for recycling purposes Dec. 18, 2007
7306449 Food shaping device for forming three-layered foods Dec. 11, 2007
7293982 Device for producing physically expanded structural foams during an injection molding process involving the use of dynamic mixing elements Nov. 13, 2007
7291001 Device for preparing plastics material Nov. 6, 2007
7264460 Installation for preparing materials Sep. 4, 2007
7097442 Extruder Aug. 29, 2006
7029262 Method and apparatus for making pellets of wood meal compound Apr. 18, 2006
7004739 Apparatus for injection molding multilayered articles Feb. 28, 2006
6958128 Dynamic mixer screw tip Oct. 25, 2005
6942376 Extruder mixing Sep. 13, 2005
6910796 Process and equipment for producing concrete products having blended colors Jun. 28, 2005
6817851 Method and apparatus for the manufacture of fiber-reinforced plastic compositions Nov. 16, 2004
6805544 Extruder Oct. 19, 2004
6790025 Extrusion molding apparatus Sep. 14, 2004
6790023 Screw extruder and method of controlling the same Sep. 14, 2004
6776596 Apparatus for the manufacture of fiber-reinforced plastic compositions Aug. 17, 2004
6722870 Traveling extrusion machine Apr. 20, 2004
6698338 Domestic machine for making, cutting and shaping pasta Mar. 2, 2004
6676864 Resin and fiber compounding process for molding operations Jan. 13, 2004
6648057 Apparatus for manufacturing semi-finished products and molded articles of a metallic material Nov. 18, 2003
6638051 Extrusion molding machine for producing ceramic molding Oct. 28, 2003
6627134 Apparatus for molding multilayered articles Sep. 30, 2003
6602064 Polymer processing system and apparatus Aug. 5, 2003
6585923 Extrusion method and extruder Jul. 1, 2003
6575721 System for continuous processing of powder coating compositions Jun. 10, 2003
6511217 Method and system to compound silicone compositions Jan. 28, 2003
6499984 Continuous production of pharmaceutical granulation Dec. 31, 2002
6468464 Method and apparatus for injection molding parts Oct. 22, 2002

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