ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,528,722, issued on Jan. 20, was assigned to UTSUNOMIYA KOGYO Co. LTD. (Tokyo).
"Compressed air jet device" was invented by Hideo Utsunomiya (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a compressed air jet device A composed of an discharge port member 1 provided on a pipe P for connecting to a compressed air supply source such that the opening thereof faces downwards, and a hole portion 14 provided in the connection 10 between the pipe P and the discharge port member 1 and allowing communication between the interior of the pipe P and the interior of the discharge port member 1, wherein the vertical cross-sectional shape of the perip...