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) > Surfaces rotate in same direction and/or mounted on non-horizontal axis > Patents

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Class Information
Number: 241/229
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) > Surfaces rotate in same direction and/or mounted on non-horizontal axis
Description: Apparatus in which (1) the cooperating surfaces rotate in the same direction and/or (2) the one or both of the surfaces rotate on vertical or inclined axes and/or (3) one or both of the surfaces is eccentrically mounted on its axis.

Patents under this class:

Patent Number	Title Of Patent	Date Issued
5673863	Size reduction apparatus for the production of prismatical and particularly cubical particles from cuttable materials	Oct. 7, 1997
5509612	Process and device for the continuous shaping of particulate materials	Apr. 23, 1996
5383609	Method for pulverization of vegetable fiber materials and its pressure roller system	Jan. 24, 1995
5373999	Grinding and mixing device	Dec. 20, 1994
4858834	Chip slicer improvement	Aug. 22, 1989
4235382	Method and apparatus for rechipping wood chips	Nov. 25, 1980
4109690	Chipper	Aug. 29, 1978
4083501	Material disintegrating apparatus	Apr. 11, 1978