US Patent Issued to Edwards on March 25 for "Scroll pump with fluid recirculation valve" (British Inventors)

ALEXANDRIA, Va., March 26 -- United States Patent no. 12,258,963, issued on March 25, was assigned to Edwards Ltd..

"Scroll pump with fluid recirculation valve" was invented by Alan Ernest Kinnaird Holbrook (Burgess Hill, Great Britain), David Bedwell (Burgess Hill, Great Britain) and Nigel Paul Schofield (Burgess Hill, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A scroll pump includes an inlet and an outlet, a fixed scroll and an orbiting scroll intermeshed with each other, wherein the fixed scroll and orbiting scroll define a space therebetween. The scroll pump further includes a biasing apparatus configured to bias the orbiting scroll against the fixed scroll, a fluid recirculation channe...