US Patent Issued to Tonal Systems on March 4 for "Exercise machine arm with single-handed adjustment" (California Inventors)

ALEXANDRIA, Va., March 5 -- United States Patent no. 12,239,874, issued on March 4, was assigned to Tonal Systems Inc. (San Francisco).

"Exercise machine arm with single-handed adjustment" was invented by Mark Peter McNally (San Francisco), Michael Valente (San Francisco), Anya Richardson Quenon (San Francisco), Patricia Holloway Howes (San Francisco), Scott Thomas Rider (Pleasant Hill, Calif.), Daniel Jordan Kayser (Mill Valley, Calif.), David Mallard (Mill Valley, Calif.), David Jonathan Zimmer (Exeter, Calif.) and Maxwell Walter Davis (Oakland, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An exercise device includes a resistance unit having a connecting gear. It further includes a cable. It furth...