ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,773,590, issued on Oct. 27, was assigned to Zwift Inc. (Long Beach, Calif.).

"Quick connect chain tensioner for bicycles and bicycle trainers" was invented by Jonathan Heath (London).

According to the abstract* released by the U.S. Patent & Trademark Office: "There is disclosed a chain tensioner system including a pulley for rotatably engaging a bicycle chain or belt, a pulley arm, upon which the pulley is mounted, the pulley arm movable between a closed position and an open position, a fixed tensioner arm, engaged with the pulley arm, and a tensioner element for connecting the fixed tensioner arm with the pulley arm, the tensioner element for keeping the pulley arm in either the clo...