ALEXANDRIA, Va., July 28 -- United States Patent no. 12,691,405, issued on July 28, was assigned to HOWDEN GROUP Ltd. (Renfrew, Great Britain).

"Rotary adsorption machine and a housing therefor" was invented by Dougal Hogg (Glasgow, Great Britain), Joanne Moore (Falkirk, Great Britain), James Nimmo (Cumbernauld, Great Britain) and Laura Morrison (Coatbridge, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A housing for a rotary adsorption machine includes a peripheral section configured to circumferentially surround a rotor and define a plurality of zones through which the rotor can rotate, including an adsorption zone, a desorption zone, and a regeneration zone. The housing may include two or m...