ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,546,313, issued on Feb. 10.
"External gear pump" was invented by Farhad Sedri (Kerman, Iran) and Alireza Riasi (Tehran, Iran).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein is an external gear pump. The external gear pump includes a casing, a first bearing, a second bearing, a driver gear, a first hollow cylinder, a driven gear, a second hollow cylinder, an inlet port, and an outlet port. When a first longitudinal slot of the first hollow cylinder is aligned with a slot from the first plurality of slots of the driver gear, fluid communication is provided between a first inter-teeth space between two consecutive teeth from the first plura...