US Patent Issued to Caterpillar on Nov. 3 for "Method of adjusting relief pressure of relief valve for swing motor" (Japanese Inventor)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,781,466, issued on Nov. 3, was assigned to Caterpillar SARL (Geneva).

"Method of adjusting relief pressure of relief valve for swing motor" was invented by Naoki Sawada (Akashi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method is provided for adjusting the relief pressure of a relief valve for a swing motor that can set the relief pressure of each relief valve with high accuracy without rotating the upper swing body. Sequentially switching the relief valve for the swing motor to be adjusted; and at a state that the rotation of each swing motor is forcibly stopped and the relief pressure of the relief valve for a swing motor to be adjusted is...