Hockmeyer Equipment was awarded its’ fourth US patent on continuing advances in immersion mill technology. This advance fits into a pattern of design improvements that build upon each other, adding performance enhancements to the fundamental concept that media milling is more efficiently done with the mill immersed in the product rather than the conventional method of pumping the product thru the mill. Hockmeyer has eliminated pumps, hoses, mechanical seals and very limited feedstock throughput. The machine amplifies recirculation milling to its’ zenith.