US Patent Issued to FK Irons on June 3 for "Tattoo machine rechargeable battery unit with voltage controller" (New York, Indiana, Nevada Inventors)

ALEXANDRIA, Va., June 4 -- United States Patent no. 12,318,566, issued on June 3, was assigned to FK Irons Inc. (Doral, Fla.).

"Tattoo machine rechargeable battery unit with voltage controller" was invented by Robert Smead (Goshen, Ind.), Christopher Sanford (Las Vegas) and Dahao Xuan (Brooklyn, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A compact battery and voltage supply controller apparatus for a tattoo machine is disclosed. The battery and controller are configured to connect the battery to the tattoo machine through replaceable internally received magnetic connection adapters. The toggle switch operated display screen provides easy-to-view status and health of the battery and incremental volta...