ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,545,559, issued on Feb. 10, was assigned to KOBELCO CONSTRUCTION MACHINERY Co. LTD. (Hiroshima, Japan).
"Backstop" was invented by Kenichi Nakatsuka (Hyogo, Japan), Koji Sumimoto (Hyogo, Japan), Eiji Miya (Hyogo, Japan) and Teppei Maedo (Hyogo, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A backstop to prevent contact between a spacer and a peripheral member includes a rear jib backstop for a crane, having an outer cylinder, an inner cylinder, a spacer, a spacer holder and a lock mechanism. The spacer holder supports the spacer pivotally and swingably about an axis thereof and allows the spacer to fit on the inner cylinder, to keep the rear jib ...