High throughput comminution/mixing method and apparatus

Details High throughput comminution/mixing method and apparatus High throughput comminution/mixing method and apparatus

2006-02-10

2008-11-11

Francis, Faye (Department: 3725)

Solid material comminution or disintegration

Apparatus

Loose grinding body comminutor

C241S301000, C366S217000

Reexamination Certificate

active

07448566

ABSTRACT:
The invention is a laboratory mill that allows small samples to be shaken, mixed, ground, homogenized or comminuted effectively within a small vial. The design is similar to a planetary mill but unlike those devices, neither axis of rotation is centered on the axis of the processing vessel. The design allows many vials to be processed at one time and even when the diameter of the vial is quite small, maintains the processing performance. The performance of the device when used as a comminuter is demonstrated showing that the device can comminute organic solids down to a median particle size of 1 micrometer with a narrow size distribution. Because the processing takes place within a vial, the mill does not require cleaning between samples which allows the application of the device in automated or high throughput systems. Since the action occurs in one plane, vials are able to be retained by a stationary plate above the vials and additionally makes the device amenable to automation of sample loading and unloading.

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