ALEXANDRIA, Va., July 16 -- United States Patent no. 12,669,297, issued on June 30, was assigned to T.RAD Co. LTD. (Tokyo).
"Cup-plate type heat exchanger" was invented by Shuhei Matsusaka (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "This cup-plate type heat exchanger has a lower end plate 2 that is thicker than each of second plates 5. In a state in which plates 2, 3, and 5 are stacked, each of inner fins 4 is provided between the lower end plate 2 and the first plate 3 fitted inside the lower end plate and between the second plate 5 and the first plate 3 fitted inside the second plate, and an angle Alpha of a first inclined portion 6 of the lower end plate 2 is formed smaller than an angle Beta of...