Patent ID: 6123278
Filing Date: 2000-09-26
Classification: B02C

Abstract:
A grinding mill comprising:at least one dish for holding a sample of a material to be ground;a dish holder for fixedly holding said dish;a base;a spin-disk rotatably mounted in said base, said spin-disk having an off-center cavity for rotatably engaging said dish holder and a central axis, and wherein when said spin-disk is rotated about said central axis, said dish holder orbits within said cavity about said central axis;a restrainer for restraining said dish holder from rotating as it orbits around said central axis of said spin-disk, and wherein said restrainer includes a distal end attached to said dish and a proximate end;a coupler mounted on said base for movably engaging said proximate end, said coupler for restraining the movement of said restrainer;a puck disposed within said dish for grinding a sample, wherein said puck is substantially free to move within said dish; anda motor connected to said spin-disk, said motor for rotating said spin-disk.