ALEXANDRIA, Va., May 5 -- United States Patent no. 12,618,420, issued on May 5, was assigned to Airbus Operations GmbH (Hamburg, Germany).
"Hydraulic actuator and method for operating" was invented by Tanno Zantz (Hamburg, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hydraulic actuator comprising a housing, a piston, first to third pressure chambers, and a plurality of arrangements of piezoelectric elements arranged inside one of the plurality of chambers. A computer implemented internal brake for selectively switching between a braking mode and a non-braking mode of the piston comprises the third chamber, and fluid connections between the first to third chambers with flow control elements."
The...