ALEXANDRIA, Va., June 10 -- United States Patent no. 12,292,058, issued on May 6, was assigned to Edwards Japan Ltd. (Chiba, Japan).
"Vacuum pump and water cooling spacer" was invented by Tooru Miwata (Chiba, Japan) and Yoshiyuki Takai (Chiba, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A vacuum pump is provided, which is capable of preventing a water cooling spacer, which is one component of a casing, from being damaged by destruction of an interior component. The vacuum pump includes a casing having an inlet port, a stator column provided upright inside the casing, and a rotating body shaped to surround an outer periphery of the stator column, with gas being sucked in from the inlet port by rotati...