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Class Information
Number: 241/107
Name: Solid material comminution or disintegration > Apparatus > Plural rotary or oscillatory surfaces cooperate with common surface (e.g., chasing mills)
Description: Apparatus in which a plurality of rotary or oscillatory surfaces cooperate with the same portion of another surface so as to comminute material.

Sub-classes under this class:

Class Number	Class Name	Patents
241/117	Common surface moves during comminution	49
241/111	Outer peripheral contact of common surface by plural surfaces	2
241/123	Planetary movement of plural surfaces	1
241/115	Plural sets of plural surfaces cooperating with plural common surfaces	4
241/113	Plural surface cooperate with each other	1
241/110	Plural surfaces move across common surface	13
241/114	Radial faces of plural rotary surfaces cooperate with common surface	7
241/108	With additional diverse type of comminutor	1
241/109	With material feeding mechanism or control	11

Patents under this class:

Patent Number	Title Of Patent	Date Issued
6594619	Apparatus and method for predicting failures of spinning disks in turbo-machinery	Jul. 15, 2003
6347757	Coal mill and reduction gear used therefor	Feb. 19, 2002
6092748	Blade ring for air-swept roller mills	Jul. 25, 2000
6079646	Blade ring for air-swept roller mills	Jun. 27, 2000
5895000	Glass crushing machine and glass crushing system using the same	Apr. 20, 1999
5875977	Technique for improving the response time of pulverized coal boilers	Mar. 2, 1999
4270704	Crusher	Jun. 2, 1981
4133488	Roller mill with removable separator structure	Jan. 9, 1979