ALEXANDRIA, Va., May 12 -- United States Patent no. 12,627,250, issued on May 12, was assigned to BLACK & DECKER INC. (New Britain, Conn.).
"Battery pack, power tool and battery pack charger system" was invented by Andrew E. Seman Jr. (Pylesville, Md.), Matthew J. Velderman (Baltimore) and Daniel J. White (Baltimore).
According to the abstract* released by the U.S. Patent & Trademark Office: "A battery pack including a first subset of battery cells and a second subset of battery cells, set of switches, a DC output port and an AC output port. The battery pack may provide both a DC output signal at the DC output port and an AC output signal at the AC output port by selectively activating the switches of the set of switches. The battery pack...