Wolf Mineral Process Corp. v. Mineral Separation North American Corp.

SOPER, District Judge.

Twenty years ago an important invention was made in the. art of metallurgy relating to the separation of the metallic substances in pulverized ores from the nonmetallie constituents, consisting of quartz or rocky material, called gang-ue. In the prior art, ore concentration in actual practice consisted of water or gravity concentration, wherein, under different conditions of agitation, the separation of the quicker settling particles from tho slower settling particles was effected. It was also well known that oil and oily substances had a selective affinity for minute…