US Patent Issued to Nabtesco on Sept. 30 for "Hydraulic device, hydraulic motor and construction machine" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,428,808, issued on Sept. 30, was assigned to Nabtesco Corp. (Tokyo).

"Hydraulic device, hydraulic motor and construction machine" was invented by Masataka Sato (Tokyo) and Etsuro Komori (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hydraulic device includes: a first block having internal teeth; a second block configured to rotate relative to the first block; an oscillatory rotating body having external teeth smaller in number than the internal teeth, being provided inside the first block such that it is oscillatorily rotatable, and having an inner circumferential portion; a rotation restricting shaft extending from the inner circumferential p...