ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,415,061, issued on Sept. 16.
"Needle assembly for tattoo device" was invented by Long Xiao (North York, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A tattoo needle assembly has a housing comprising a longitudinal channel, a needle bundle mounted in the longitudinal channel and reciprocally movable between a retracted position and an extended position, and a biasing member engaged with the housing and the needle bundle for biasing the needle bundle at least radially to an inner wall of the housing. The housing comprises first and second guide surfaces forming a V-shaped guideway on the inner wall. The needle bundle comprises first and second s...