Apparatus > Plural rotary or oscillatory surfaces cooperate with common surface (e.g., chasing mills) > Planetary movement of plural surfaces > Forcible away from common surface > Pivotally mounted for forced movement > Centrifugally urged toward contact > With centrifugal force modifying means > Patents

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Class Information
Number: 241/130
Name: Solid material comminution or disintegration > Apparatus > Plural rotary or oscillatory surfaces cooperate with common surface (e.g., chasing mills) > Planetary movement of plural surfaces > Forcible away from common surface > Pivotally mounted for forced movement > Centrifugally urged toward contact > With centrifugal force modifying means
Description: Apparatus in which the centrifugally urged plural surfaces are provided with means to modify the centrifugal force. The means usually takes the form of a spring mounted to augment or lessen the centrifugal force.

Patents under this class:

Patent Number	Title Of Patent	Date Issued
4640464	Roller mill control system	Feb. 3, 1987
4184640	Coal grinding apparatus for direct fired burners	Jan. 22, 1980
4022387	Roller grinding mill apparatus	May. 10, 1977

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