ALEXANDRIA, Va., July 21 -- United States Patent no. 12,686,599, issued on July 21, was assigned to Liebherr-Werk Biberach GmbH (Biberach an der Riss, Germany).
"Lifting gear, and method for adjusting the boom of such a lifting gear" was invented by Thomas Neubert (Bahra, Germany), Dirk Wehner (Dresden, Germany) and Julian Hafner (Apfingen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A lifting gear, in particular a telescopic boom crane, including at least one boom, a boom adjustment unit including at least one hydraulic actuator for adjusting the boom, and a control device for controlling the movement of the hydraulic actuator, the control device being provided with a displacement controller havi...