ALEXANDRIA, Va., May 26 -- United States Patent no. 12,638,100, issued on May 26, was assigned to Trinity Rail Group LLC (Dallas).
"Tank car bottom outlet valve operating assembly" was invented by Aubra D. McKisic (Flower Mound, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "According to particular embodiments, a valve operating assembly, such as for a tank car bottom outlet valve, comprises a slide rotationally coupled to and transversely slidable relative to a valve stem. The slide comprises a shape that facilitates rotational coupling with a handle and the slide further comprises a connector for engaging a protective plate to limit rotation of the slide about a valve rotational axis when in a first ...