ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,485,747, issued on Dec. 2, was assigned to Kubota Corp. (Osaka, Japan).
"Swivel working machine" was invented by Kiyoshi Matsui (Osaka, Japan) and Koji Nagahama (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A swivel working machine includes a swivel base, a prime mover installed in the swivel base, a working device provided at the swivel base, and a support mechanism that supports a fuel cylinder in a rotatable manner around a pivot shaft. The fuel cylinder contains fuel for the prime mover. The support mechanism includes a support rotating body that supports the fuel cylinder and that rotates around the pivot shaft, a rotational-position ...