ALEXANDRIA, Va., March 31 -- United States Patent no. 12,590,491, issued on March 31.
"Switchable locking device" was invented by Alejandro Barchine (Miami Beach, Fla.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A switchable locking device has a switchable lock and an output shaft configured to receive the switchable lock and to be selectively connected to and disconnected from a rotational shaft via the switchable lock. When received by the output shaft, the switchable lock is configured to be selectively switched between an ON state and an OFF state. In the ON state of the switchable lock, the output shaft is connected to the rotational shaft for undergoing rotation therewith. In the OFF state of the sw...