ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,492,104, issued on Dec. 9, was assigned to TADANO LTD. (Kagawa, Japan).
"Estimation apparatus and crane" was invented by Shoji Nishimoto (Kagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is an estimation apparatus for estimating a number of wound layers of a wire rope in a crane including a boom, a winch drum, and the wire rope wound around the winch drum, the estimation apparatus being mounted on the crane, the estimation apparatus including: a calculation unit that calculates a delivery length of the wire rope; a detection unit that detects a rotational amount of the winch drum; and a control unit that estimates the number of wound...