ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,697,860, issued on Aug. 4, was assigned to KAWASAKI RAILCAR MANUFACTURING Co. LTD. (Kobe, Japan).

"Door apparatus of railcar" was invented by Naohiro Yoshida (Kobe, Japan) and Tatsuya Ikeda (Kobe, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "When a side sliding door is in a fully closed state, there is a space between a first elastic structure and a second elastic structure, and a first projecting wall portion and a second projecting wall portion are located so as to overlap each other when viewed in a thickness direction of the side sliding door. An elastic fin includes: an attaching portion detachably attached to one of the first elastic struct...