ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,420,309, issued on Sept. 23, was assigned to Schlumberger Technology Corp. (Sugar Land, Texas).
"Sloped screens for a shaker system" was invented by Claire Rosaleen Galloway McLean (Musselburgh, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A screen assembly includes a screen with a screen frame and a screen filter. The screen frame includes a leading edge with a first height and a trailing edge with a second height. The screen filter extends between the leading edge and the trailing edge to provide a sloped screen surface. The screen assembly may also include an additional screen with an additional screen frame and an additional screen ...