ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,509,332, issued on Dec. 30, was assigned to LIEBHERR-WERK EHINGEN GMBH (Ehingen/Donau, Germany).
"Mobile crane having a counterweight device" was invented by Lars Eberhardt (Staig, Germany) and Peter Scheffold (Ochsenhausen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure relates to a mobile crane that comprises a travelable undercarriage, a superstructure rotatably supported on the undercarriage, and a counterweight device couplable to the superstructure. The counterweight device comprises a counterweight base plate and at least one connection means for raising the counterweight device and for coupling it to the superstructure. Th...