ALEXANDRIA, Va., July 14 -- United States Patent no. 12,680,757, issued on July 14, was assigned to Valmet AB (Sundsvall, Sweden).
"Compact high performance through-air apparatus" was invented by Stanley M. Gerry Jr. (Gray, Maine), Jan Skawski (Wilton, Maine) and Douglas B. Staples (Portland, Maine).
According to the abstract* released by the U.S. Patent & Trademark Office: "A high performance through-air apparatus is provided. The though-air apparatus includes a through-air roll configured for rotational movement about a first axis, and a high flow circuitous air path inside of the apparatus that includes a path extending through a supply conduit, through the through-air roll, and also through an exhaust conduit. The through-air apparatu...