US Patent Issued to Edwards Japan on July 28 for "Vacuum pump" (Japanese Inventors)

ALEXANDRIA, Va., July 28 -- United States Patent no. 12,692,870, issued on July 28, was assigned to Edwards Japan Ltd. (Yachiyo, Japan).

"Vacuum pump" was invented by Shigeyoshi Nakatsuji (Yachiyo, Japan), Yoshiyuki Takai (Yachiyo, Japan) and Haruki Suzuki (Yachiyo, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "There is obtained a vacuum pump which suppresses an influence on external piping caused by a contact failure of a rotor during rotation of the rotor. A temperature rise ring 301 is provided in the vacuum pump, an outlet port 133 to which the external piping is connected is connected to the temperature rise ring 301, and a rotational force is directly or indirectly applied to the temperature ris...