Patent ID: 8356445

Claim:
A rotating stand, comprising: a turner casing base; a small diameter lower bearing race coupled to a funnel structure of said turner casing base; a large diameter lower bearing race coupled to said turner casing base, wherein said large diameter lower bearing race is concentric with said small diameter lower bearing race; a turner casing top rotatably coupled with the turner casing base; a small diameter upper bearing race coupled to said turner casing top; a large diameter upper bearing race coupled to said turner casing top, wherein said large diameter upper bearing race is concentric with said small diameter upper bearing race; a small diameter bearings cage positioned between said small diameter upper bearing race and said small diameter lower bearing race, wherein said small diameter bearing cage comprises a plurality of circular holes; a large diameter bearings cage positioned between said large diameter upper bearing race and said large diameter lower bearing race, wherein said small diameter bearing cage comprises a plurality of circular holes; a plurality of small bearings positioned within said small diameter bearing cage; a plurality of large bearings positioned within said large diameter bearing cage; a ring gear coupled to said turner casing top, wherein said ring gear comprises a plurality of outward facing teeth; a hollow tube extending downward from said turner casing top into said funnel structure of said turner casing base; a motor drive assembly coupled with the turner casing base, wherein the motor drive assembly is configured to rotate the turner casing top relative to the turner casing base; and a motor controller coupled with the turner casing base, wherein the motor controller is configured to cause the motor drive assembly to rotate the turner casing top relative to the turner casing base using alternating clockwise and counter-clockwise rotational motions.