ALEXANDRIA, Va., March 31 -- United States Patent no. 12,589,521, issued on March 31, was assigned to CORNING Inc. (Corning, N.Y.).
"Drainage plates for ceramic extrusion" was invented by Eric Lee Thompson (Livonia, N.Y.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A drainage plate (10) for an extruder assembly including a body (12) having an inner edge (14) and an outer edge (15). A seal portion (24) of the body extends radially from the inner perimeter toward the outer perimeter. One of more drainage features are located radially outward of the seal portion. The one or more drainage features extend an axial depth into the body such that a first thickness (t1) of the drainage plate at the seal portion is ...