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Class Information
Number: 425/381.2
Name: Plastic article or earthenware shaping or treating: apparatus > Stock pressurizing means operably associated with downstream shaping orifice > Centripetal elastic melt extruder type
Description: Apparatus wherein the fluent material is subjected to shearing stress usually produced by relatively rotating feeding surfaces to cause a flow of the material in a direction towards a central shaping orifice.

Patents under this class:

Patent Number Title Of Patent Date Issued
8574475 Process of and apparatus for making mineral fibers Nov. 5, 2013
8454883 Nanocomposite material apparatus, nanocomposite material and method for fabricating thereof, nano material apparatus and nano material Jun. 4, 2013
8226396 Device for the production of granulate grains from a plastic melt Jul. 24, 2012
7811073 Blow head for producing blown tubular film Oct. 12, 2010
7588708 Spiral-webbed mandrel Sep. 15, 2009
7513766 Extrusion apparatus having a driven feed segment Apr. 7, 2009
7153119 Apparatus for extruding food dough Dec. 26, 2006
7131829 Spiral die assembly Nov. 7, 2006
7077639 Spiral-webbed mandrel Jul. 18, 2006
7052266 Apparatus for making fiber-containing rubber strips May. 30, 2006
6932591 Apparatus and method for co-extruding multi color plastics Aug. 23, 2005
6669458 Extrusion die with rotating components Dec. 30, 2003
6613128 Twin screw extruder, method of making aromatic polycarbonate using a twin screw extruder, and method of removing volatiles from an aromatic polycarbonate melt Sep. 2, 2003
6592353 Dough distribution device of extruder Jul. 15, 2003
6533570 Extruder die head Mar. 18, 2003
6447279 Extrusion die with rotating components Sep. 10, 2002
6436326 Forming slurry of reactive components and continuously feeding into continuous reactor Aug. 20, 2002
6407034 Thermal chromogenic plastic film and method of manufacture therefor Jun. 18, 2002
6352425 Rotating disk extruder Mar. 5, 2002
6340443 Fine particle/polyester slurry melt-kneaded in extruder with polyester Jan. 22, 2002
6197239 Extrusion apparatus and method for orienting plastic material by using an extrusion apparatus Mar. 6, 2001
6158999 Rotary die Dec. 12, 2000
6120404 Belt tensioner Sep. 19, 2000
6060010 Fiber reinforced thermoplastic resin structure, process for production of same, and extruder for production of the same May. 9, 2000
5852113 Preparation of thermoplastics Dec. 22, 1998
5851586 Process for producing polymer films from aqueous polymer compositions Dec. 22, 1998
5716669 Process for producing polymer films from aqueous polymer compositions Feb. 10, 1998
5643645 Craze resistant transparent sheet Jul. 1, 1997
5624740 Doormats manufacturing apparatus Apr. 29, 1997
5582841 Fiber manufacturing spinner and fiberizer Dec. 10, 1996
5538343 Apparatus and method for liquid mixing employing nip zones Jul. 23, 1996
5486102 High intensity pellet machine Jan. 23, 1996
5468137 Apparatus for extruding a viscous material Nov. 21, 1995
5387386 Extrusion method and apparatus Feb. 7, 1995
5356280 Pump for particulate solids Oct. 18, 1994
5217302 Method and equipment for electromagnetic dynamic plasticating extrusion of polymer materials Jun. 8, 1993
5200204 Rotary extruder with integral auger feed assembly Apr. 6, 1993
5110846 Process for continuous production of matt or satin powder paints May. 5, 1992
4790736 Apparatus for centrifugal fiber spinning with pressure extrusion Dec. 13, 1988
4553922 Apparatus for processing material Nov. 19, 1985
4501543 Rotary extruder Feb. 26, 1985
4300842 Seals for rotary processor Nov. 17, 1981
4294638 Circular extrusion method providing for rotation around the extrusion opening Oct. 13, 1981
4207004 Seals for rotary processor Jun. 10, 1980
RE30192 Method and apparatus for making glass fibers utilizing an oscillating spinner Jan. 15, 1980
3997307 Method and apparatus for making glass fibers utilizing an oscillating spinner Dec. 14, 1976

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