ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,731,846, issued on Sept. 8, was assigned to United States of America as represented by the Administrator of NASA (Washington).

"Cordless rechargeable 12-volt/24-volt DC power supply" was invented by Andrew Henken (Stennis Space Center, Miss.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention includes a portable, cordless, rechargeable 12 volt/24-volt DC power supply. The power supply includes a relatively small box or case with two (2) 12-volt rechargeable batteries inside, which connect to a jack for plugging in a standard 12-volt battery charger, a 2-pin power connector that is commonly used to connect to items under test such as sol...