ALEXANDRIA, Va., July 15 -- United States Patent no. 12,663,085, issued on June 23, was assigned to Illinois Tool Works Inc. (Glenview, Ill.).
"Controle plate for a high conductance valve" was invented by Kim Ngoc Vu (Yorba Linda, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A high purity control valve for use in high conductance, proportional control applications includes a moveable control plate having a flow-through passage to enhance fluid sweep of the internal valve volume. Nested orifice ridges are used to achieve high conductance with small actuator movement. Enhanced leak tightness can be provided by incorporating into the control plate materials softer than the material comprising the orifi...