ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,702,909, issued on Aug. 11.
"Swing training apparatus and method" was invented by Jay David Fries (Bulverde, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to an apparatus and method to train a proper baseball or softball swing. More specifically, the disclosure concerns a first platform and a second platform pivotably mounted to the first platform. The pivotable mount causes a hitter executing a swing to focus on properly squaring his/her hips off to a pitcher and rotating or pivoting his/her back foot during the swing. The first platform may also be sized to address a common error of overstriding and/or stepping ou...