US Patent Issued to Transportation IP Holdings on May 27 for "Door actuation system and method" (Illinois, Florida Inventors)

ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,857, issued on May 27, was assigned to Transportation IP Holdings LLC (Norwalk, Conn.).

"Door actuation system and method" was invented by Timothy Robert Schmidt (Arlington Heights, Ill.), Frank Golemis (Skokie, Ill.), Karl Kobel (Wildwood, Ill.), Robert Johnson (Sebastian, Fla.) and Matthew Chapman (Buffalo Grove, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A door actuation system may include an actuation device to move a first door leaf and a second door leaf between an open and a closed position. The actuation device may provide an open preload force in the open position. The actuation device may provide a closed preload force in the clos...