BRUCE CONRAD
Real Estate Commission in Weatherly, PA

6824086, Nov 30, 2004

Oct 6, 2000

09/680271

Marian Mazurkiewicz - Wilkes Barre PA
Bruce E. Conrad - Weatherly PA

Cornerstone Technologies, L.L.C. - Wilkes Barre PA

B02C 1900

241 5, 241 16, 241 29, 241 39, 241 40, 2411522

A method for creating ultra-fine particles of material using a high-pressure mill is described. The method includes placing a material in a first chamber and subjecting the material to a high-pressure fluid jet to divide it into particles. These particles are then transferred to a second chamber in which they are subjected to cavitation to further divide the particles into relatively smaller particles. These relatively smaller particles are then transferred to a third chamber, in which the particles collide with a collider to still further divide them into ultra-fine particles of the material. The mill of the present invention includes a first chamber having an high-pressure liquid jet nozzle, first and second slurry nozzles, a second cavitation chamber and a third chamber which houses a collider. In one embodiment, the slurry nozzle has an inner surface and sharp edges that project slightly out from the inner surface. Sensors may be located throughout the mill to collect data on the comminution process and to use the data to control the resultant particle size.