Grinding mill

Details Grinding mill Grinding mill

1999-03-12

2000-09-26

Rosenbaum, Mark

Solid material comminution or disintegration

Processes

Miscellaneous

2411991, 241206, 241228, B02C 1900

Patent

active

061232785

ABSTRACT:
A grinding mill is provided. The mill uses a substantially two-dimensional system for producing gyratory motion in a dish for the purpose of rotating a puck within the dish. The system includes a spin-disk having a circular off-center cavity for holding a dish holder fixedly containing a dish. When the spin-disk is rotated, the dish holder orbits about a point other than its center point, but does not rotate about its center point because its movement is limited by a restrainer. A puck is disposed within the dish, possibly along with a ring, in a fashion that allows the puck, and the ring if present, to freely move within the dish. Thus, the dish holder orbits but does not rotate and the puck spins or bounces within the dish. The combination of these movements causes the puck to impact the dish in a way that crushes a sample within the dish. The mill may be constructed small enough to be used on a work bench. It can also be completely enclosed in a carrying case for efficient transport and storage.

REFERENCES:
patent: 10567 (1854-02-01), Eaton
patent: 533478 (1895-02-01), Lovett
patent: 4905920 (1990-03-01), Siwersson et al.
Angstrom, Inc., "Laboratory Ring Pulverizers".
Podmore Gy-ro Laboratory Grinding Mill & Podmore Sample Grinding Barrels.
Herzog Japan Ltd., "Herzog Pulverizing Mills".
TM Engineering Ltd., "TM/S Pulverizer".
Classic Comlabs Ltd, "Mixermill 4010".
Applied Research Laboratories, "Rotary Mill for Sample Preparation".
GyralGrinder, "Chemplex Industries, Inc", 1994.
Rocklabs, Ltd., "Rocklabs Whisper Series Bench Top Ring Mill", Apr. 1996.
Labtech LM5 Mill, "Lab Technics", Oct., 1998.

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