ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,446,731, issued on Oct. 21, was assigned to GIRARDI S.R.L (Spinea, Italy).
"Grinding apparatus and method" was invented by Egidio Girardi (Venice, Italy).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for use of an apparatus comprises: a grinding step, a cleaning step, and a de-ionizing step; the apparatus comprises a receptacle to contain the product to be ground and provided with an unloading aperture; a fixed grinder; a mobile grinder rotatable around a rotation axis connectable to a drive motor; a cleaning device connected to the mobile grinder; a grinding chamber in which the fixed grinder, the mobile grinder and the cleaning device are loc...