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Class Information
Number: 241/235
Name: Solid material comminution or disintegration > Apparatus > Cooperating comminuting surfaces (e.g., jaw crusher) > Rotary surface (or surfaces) > Circumferential or tangential flow of material (e.g., roll mills or roll and concave mills) > Both cooperating surfaces rotate (e.g., roll mills) > Cooperating non-smooth surface characteristic
Description: Apparatus in which one or both of the cooperating surfaces are not smooth but are provided with cooperating grooves, channels, protuberances or the like.










Sub-classes under this class:

Class Number Class Name Patents
241/236 Intermeshing 571


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8690087 Roller mill for coffee Apr. 8, 2014
8684293 Apparatus for starting moving items into a processing machine Apr. 1, 2014
8632025 System and method for ground material characterization in a grinding system Jan. 21, 2014
8517297 Apparatus for fracturing polycrystalline silicon and method for producing fractured fragments of polycrystalline silicon Aug. 27, 2013
8511597 Apparatus for fracturing polycrystalline silicon and method for producing fractured fragments of polycrystalline silicon Aug. 20, 2013
8308096 Reinforced roll and method of making same Nov. 13, 2012
8292207 Method and apparatus for the coarse and fine grinding of mineral and non-mineral materials Oct. 23, 2012
8282029 System, method and apparatus for processing bone product Oct. 9, 2012
8240589 Method for crushing hot cement clinker Aug. 14, 2012
8118891 Grate for high temperature gasification systems Feb. 21, 2012
7997516 Multiple roll crusher Aug. 16, 2011
7967227 Agitation system for blowing wool machine Jun. 28, 2011
7896270 Drums for hogging apparatus Mar. 1, 2011
7757980 Baled agricultural crop product unbaling apparatus and method of using same Jul. 20, 2010
7661616 Chopper and method of chopping unwound items Feb. 16, 2010
7661615 Grid cutting device Feb. 16, 2010
7588206 Material processing apparatus and methods Sep. 15, 2009
7584919 Compacting device Sep. 8, 2009
7575187 Mixing system for manufacturing thermal interface material Aug. 18, 2009
7413136 Fiber chopper with improved idler roll Aug. 19, 2008
RE40442 Solid waste comminutor Jul. 22, 2008
7311277 Shredder apparatus and shredding method Dec. 25, 2007
7300007 Circulating grinding plant comprising a mill and a sifter Nov. 27, 2007
7198215 Dual product sizing machine Apr. 3, 2007
7195187 Rolling mill system Mar. 27, 2007
7137582 Device by ice storage for the discharging of ice Nov. 21, 2006
7128285 Disintegrator with rotative disk cutters Oct. 31, 2006
7090158 Dual arbor scrap chopper and chopper blade Aug. 15, 2006
7032850 Used-can processing system and method Apr. 25, 2006
6793166 Ore comminution process Sep. 21, 2004
6742733 Disk data destroyer Jun. 1, 2004
6732962 Waste treatment apparatus May. 11, 2004
6666393 Apparatus for breaking up compacted laundry Dec. 23, 2003
6634577 Crusher, process for preparing and testing materials and apparatus therefor Oct. 21, 2003
6619573 Chopper for cutting fiber continuously, and method Sep. 16, 2003
6598814 Fiber chopper Jul. 29, 2003
6588689 Apparatus for crushing material Jul. 8, 2003
6579950 Rubber waste disposal apparatus and method of treating rubber waste Jun. 17, 2003
6527211 Blade and spring fiber chopper Mar. 4, 2003
6523767 Grinding roller and method for the manufacture thereof Feb. 25, 2003
6484954 Method and device for surgical bone grinding Nov. 26, 2002
6415998 Circuit grinding apparatus with high pressure roller mill and sifter Jul. 9, 2002
6389862 Method for debasing coins, devices suitable for carrying out such a method as well as debased coins May. 21, 2002
6357683 Roller grinding mill Mar. 19, 2002
6203588 Method of producing a grinding roll Mar. 20, 2001
6131837 Segmented crop processor roll for forage harvester Oct. 17, 2000
6131635 Device for longitudinally splitting pieces of straw into separated strands Oct. 17, 2000
6086003 Roll press for crushing abrasive materials Jul. 11, 2000
5967435 Chip conditioner drive Oct. 19, 1999
5902685 Roll, method of producing a roll as well as material bed roll mill May. 11, 1999

1 2 3










 
 
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