US Patent Issued to Sakai Heavy Industries on March 4 for "Obstacle detector of construction vehicle" (Japanese Inventors)

ALEXANDRIA, Va., March 5 -- United States Patent no. 12,241,548, issued on March 4, was assigned to Sakai Heavy Industries Ltd. (Tokyo).

"Obstacle detector of construction vehicle" was invented by Ryohei Endo (Saitama, Japan), Norio Morioka (Saitama, Japan), Masato Ohgiya (Saitama, Japan) and Nobumasa Motokawa (Saitama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An obstacle detector of a construction vehicle includes a brake mechanism which includes: a first hydraulic closed circuit including a pump for rolling, which is equipped with a swash plate, and a motor for rolling, which is connected with the pump for rolling; a second hydraulic closed circuit including a first hydraulic passage communicat...