US Patent Issued to YAMAHA HATSUDOKI on Feb. 17 for "Reverse bucket for jet propulsion device, jet propulsion device for marine vessel, and marine vessel" (Japanese Inventors)

ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,552,505, issued on Feb. 17, was assigned to YAMAHA HATSUDOKI K.K. (Shizuoka, Japan).

"Reverse bucket for jet propulsion device, jet propulsion device for marine vessel, and marine vessel" was invented by Takuya Murayama (Shizuoka, Japan), Hideyoshi Sato (Shizuoka, Japan), Masaru Tamaki (Shizuoka, Japan), Isao Sugano (Shizuoka, Japan) and Kiyoe Kawauchi (Shizuoka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A reverse bucket for a jet propulsion device includes a vertical ridge line that faces a discharge opening of a deflector to make a marine vessel move backward, a first inlet region and a second inlet region separated by the ridge line to rec...