US Patent Issued to Caterpillar on May 12 for "Tapered engine exhaust valve" (Illinois, Indiana, North Carolina Inventors)

ALEXANDRIA, Va., May 12 -- United States Patent no. 12,624,650, issued on May 12, was assigned to Caterpillar Inc. (Peoria, Ill.).

"Tapered engine exhaust valve" was invented by Rachel M. Goldman Taylor (Peoria, Ill.), Adam D. Patrick (Cary, N.C.), James D. Peltier (West Lafayette, Ind.) and Abram M. Ingold (Metamora, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An exhaust valve for an internal combustion engine may comprise a body, including an upper portion, a lower portion, and a tapered portion between an upper end and a lower end of the body, wherein a ratio of (a) a length between an upper end of the upper portion and an upper end of the tapered portion to (b) a length between the upper end of t...