Solid material comminution or disintegration – Apparatus – Cooperating comminuting surfaces
Patent
1991-10-24
1992-12-22
Watts, Douglas D.
Solid material comminution or disintegration
Apparatus
Cooperating comminuting surfaces
241100, 241248, 2412612, B02C 708, B02C 2302
Patent
active
051728680
ABSTRACT:
A material flow inducing device for use in a material grinding apparatus. The grinding apparatus includes a grinding mechanism for grinding material, a motor for driving the grinding mechanism, and a hopper portion for holding a quantity of material for grinding in the grinding mechanism during a grinding operation. The flow inducing device includes a stirring member having extending arms which curve in a direction complimentary to a direction of rotation of the stirring member. The arms of the stirring member are compressibly flexible. Also included in the flow-inducing portion is an auger positioned between the stirring member and the grinding mechanism. Both the stirring member and the auger are operatively associated with the motor such that the stirring and auger rotate during a grinding operation. A material metering portion is positioned in the grinding apparatus in a surrounding relation to the auger member and has multiple downwardly spiraling inwardly sloping troughs formed in a top surface. The troughs facilitate movement of the material into the grinding mechanism.
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Bunn-O-Matic Corporation
Jones Eugenia A.
Watts Douglas D.
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