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Class Information
Number: 241/224
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) > With material feed and/or discharge mechanism or control > Hopper
Description: Apparatus in which the feed mechanism operates in conjunction with a hopper to feed the material to the comminuting zone.










Sub-classes under this class:

Class Number Class Name Patents
241/225 With roll or rotary material agitator 64


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8561929 Mobile sizing station Oct. 22, 2013
8439288 Feed device with two rotary valves which are variable independently of each other May. 14, 2013
8240588 Star feeder with comminuting insert Aug. 14, 2012
8196850 Self-clearing rasp system for automatic milling apparatus Jun. 12, 2012
8186610 Roof shingle stripper, grinder, blower, and hopper May. 29, 2012
8123152 Shredder auto feed system Feb. 28, 2012
8091814 Single-motor shredder Jan. 10, 2012
8074913 Combination thermoforming trim press and comminuting apparatus Dec. 13, 2011
7984864 Device for destroying sheet material Jul. 26, 2011
7980498 Entrance chute for blowing wool machine Jul. 19, 2011
7926753 Material and packaging shredding machine Apr. 19, 2011
7905437 Waste shredder comprising at least two rotors Mar. 15, 2011
7891592 Vibratory hopper and shredder in combination Feb. 22, 2011
7588202 Apparatus for milling material Sep. 15, 2009
7578463 Modular Rotary Grinder Aug. 25, 2009
7556214 Cutting assembly Jul. 7, 2009
7478772 Crushing and grinding device, a soybean milk maker including said device and a method for making soybean milk Jan. 20, 2009
7419110 Comminuting apparatus and material receiving duct for comminuting apparatus Sep. 2, 2008
7387268 Document destroyer with individual sheet feeding for stacked sheet material Jun. 17, 2008
7377201 Food processing apparatus for forming strips, slices and cubes May. 27, 2008
7325762 Paper guiding chute for a paper shredder Feb. 5, 2008
7083132 Comminuting apparatus with multiple entrance openings Aug. 1, 2006
7021576 Blade mill for grinding plastic material Apr. 4, 2006
6978956 Method and apparatus for granulating plastic Dec. 27, 2005
6595444 Attachment for paper shredders for receiving and feeding printed matter Jul. 22, 2003
6454196 Comminution devices Sep. 24, 2002
6390397 Paper shredding device May. 21, 2002
6311909 Syringe needle shredder Nov. 6, 2001
6149084 Device for preparing coffee powder Nov. 21, 2000
6032884 Replaceable shear edge for a star-type feeder Mar. 7, 2000
5988541 Triturating machine with material selection and rotating compactor Nov. 23, 1999
5975445 Paper shredding device Nov. 2, 1999
5845857 Coffee mill adapted for controlled mixing of coffee beans Dec. 8, 1998
5730830 Fiber panel manufacturing method and apparatus Mar. 24, 1998
5716014 Self-advancing crushing machine Feb. 10, 1998
5645234 Compact reduction grinder Jul. 8, 1997
5634601 Granulator for strand materials Jun. 3, 1997
5609308 Fine adjustment/quick acting manual actuator for roller mill feed gates Mar. 11, 1997
5597125 Apparatus for fluffing bales of peat moss and other organic matter Jan. 28, 1997
5595348 Machine for triturating composite materials, particularly for triturating solid urban waste Jan. 21, 1997
5547136 Rotary grinding apparatus for recycling waste materials Aug. 20, 1996
5529250 Feeding device for gas swept sized reduction machines Jun. 25, 1996
5516049 Hospital refuse sterilization plant May. 14, 1996
5474239 Material shredding apparatus Dec. 12, 1995
5458295 Dual chamber coffee mill Oct. 17, 1995
5417375 Material reducing machine May. 23, 1995
5417374 System and method for pressure treatment of granular material May. 23, 1995
5386946 Flaking mill with a product channel on each of the axial ends of the rollers Feb. 7, 1995
5379955 Infeed hopper with pivotable throat for shredder or granulator Jan. 10, 1995
5362000 Pre-comminuting and metering apparatus for paper shredders Nov. 8, 1994

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